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Engines

Electrolysis BWTS

medium 30 models total

Electrolysis BWTS generate their own disinfectant by running an electric current through a side stream of seawater, which removes the need to carry chemical stock but ties treatment performance directly to salinity.

Read more — Electrolysis BWTS explained ▾

What makes this type

Electrochlorination systems pass a portion of the ballast flow through an electrolytic cell, splitting seawater into sodium hypochlorite and other oxidants that are then injected into the main ballast stream to disinfect it, before the residual is neutralised prior to discharge. The advantage over UV treatment is that performance is largely independent of water clarity, since the active substance does the work rather than light penetration, which makes electrolysis systems a common choice for ships regularly ballasting in turbid or sediment-heavy ports. The dependency it trades in is salinity: the electrolytic cell needs a minimum chloride concentration to generate enough oxidant, which is why fresh and brackish water performance is the main limitation of this type.

Electrolysis BWTS process
Flow diagram of an electrolysis ballast water treatment system showing the seawater side-stream drawn off the ballast main, the electrolysis cell with its electrode plates fed by a rectifier, the degassing vent and the dosing point where the treated stream returns to the ballast main.

Main components

Filtration stage

A self-backwashing screen filter ahead of treatment removes larger organisms and debris, reducing organic load on the downstream disinfection stage.

Electrolytic cell

A side-stream of ballast water passes through electrode plates carrying a DC current, generating sodium hypochlorite from the chloride naturally present in seawater; the produced oxidant is then dosed into the main flow.

Dosing and mixing system

Metering pumps inject the generated oxidant into the main ballast line at a controlled concentration, with static mixers ensuring even distribution before the water reaches the tanks.

Neutralisation and residual control

Before discharge, a neutralising agent such as sodium bisulphite is dosed to bring total residual oxidant down to the level the D-2 standard and local discharge rules allow, monitored by an inline residual oxidant sensor.

Selection and sizing

Sizing follows the ship's maximum ballast flow rate the same as other BWTS types, but the electrolytic cell also has to be matched to the lowest salinity the ship regularly ballasts in; a cell sized only for open ocean seawater will underperform or fail to activate in brackish estuaries and needs a documented low-salinity operating mode or is simply unsuitable for that trade.

Regulations and class

  • The IMO Ballast Water Management Convention requires an approved system on essentially all seagoing ships from the 2024 compliance deadline onward.
  • Type approval under the BWMS Code confirms the system meets the D-2 discharge standard and, for active substance systems, includes a separate assessment of the chemicals produced under the Basic and Final Approval process for active substances.
  • Residual oxidant discharge limits must be met at the point of discharge, verified during commissioning testing and periodic performance checks.
  • Handling and storage of the neutralising chemical is subject to the ship's chemical safety data sheet requirements and crew PPE procedures.

Typical faults

FaultConsequence
Electrode scaling from calcium and magnesium depositsOxidant output drops, treatment falls short of D-2 requirement
Cell operated below its rated salinity thresholdInsufficient chlorine generated, organisms survive treatment
Neutralising agent dosing pump miscalibratedResidual oxidant discharged above permitted limit
Residual oxidant sensor fouled or uncalibratedFalse confidence in compliant discharge, undetected by the crew

What to look for in a supplier

  • Type approval documentation covering both the system and the active substance under the current BWMS Code cycle.
  • A stated minimum operating salinity and, if the ship trades into brackish or fresh water, a genuine low-salinity mode rather than a marketing claim.
  • Electrode cleaning or acid-wash procedure and spare electrode plate availability, since scaling is the main wear mechanism.
  • Neutralising chemical supply chain reachable at the ship's regular ports, since this is a consumable, not a one-time purchase.

Log ballast source salinity alongside the treatment cycle every time; a compliance failure traced back months later is far easier to explain, and to fix, when the water's salinity at the time is already on record.

Inspector Mode Show All 30 total

10 manufacturers · 30 models

Techcross

6
Techcross Techcross ECS BWTS
Techcross ECS BWTS
variable · Ballast Water Treatment · Electrolysis BWTS
Type
electrolysis
IMO Approved
ja
USCG Approved
ja
Origin
Korea
Common Failures & Inspection Points
  • Electrode erosion
  • TRO sensor calibration drift
  • Power supply failure
  • Neutralization system malfunction
Service: Korean manufacturer, largest BWTS market share. Electrode replacement per wear. TRO monitoring.
Spare Parts: Techcross: UV-Lampen an Bord vorhalten (2 Sätze). Filterelemente: 1 Satz. Lead time: 2-4 Wochen.
Strengths
  • IMO D-2 and USCG Type Approval confirmed for the model
  • Compact unit suitable for retrofit installations
  • No need for external chemical storage; chlorine is generated on‑site
  • Integrated TRO sensor provides real‑time compliance monitoring
  • Proven market presence with strong after‑sales support in Korea
Weaknesses
  • Electrode erosion requires scheduled replacement, increasing maintenance downtime
  • TRO sensor can drift and needs periodic calibration
  • Power supply failures have been reported, requiring robust electrical design
  • Neutralization system malfunction may affect discharge quality if not monitored
  • Higher electricity consumption compared with some UV‑based systems
Typical Vessels: TankersBulk carriersContainer shipsGeneral cargo vesselsCruise ships
Certifications: IMO D-2USCG Type Approval
Decision Guide: Choose if: you need a compact, chemically‑free BWTS with IMO and USCG approvals, have reliable shipboard power, and can accommodate regular electrode maintenance. Avoid if: your vessel has limited electrical capacity, cannot schedule periodic electrode replacement, or prefers a low‑energy solution such as UV.
Use Cases: Widely deployed on new builds and retrofits of medium to large commercial vessels operating in IMO D-2 regulated waters, especially where Korean shipyards or operators prefer local supplier support and spare‑part availability.
Datasheet
Techcross Techcross Electro-Cleen ECS-250
Techcross Electro-Cleen ECS-250 unverified
250 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
250
IMO Type Approval
ja
Common Failures & Inspection Points
  • Treatment reactor, ultraviolet lamp or electrolytic-cell deterioration caused by aging, fouling or electrical faults, resulting in low treatment output or an alarm
  • Filter blockage where fitted caused by sediment or biological loading, resulting in rising differential pressure, backflush cycling or reduced ballast flow
  • Sensor or sampling fault caused by fouling, calibration drift or blocked lines, resulting in implausible readings or automatic treatment shutdown
  • Valve, actuator or flow-control failure caused by corrosion, sticking or control faults, resulting in incorrect routing or insufficient treatment contact
  • Control-system or communication failure caused by software, network or power-supply faults, resulting in unavailable automatic operation or persistent alarms
Service: Inspect treatment reactors, filters, sensors, valves, pumps and control panels according to the approved BWMS maintenance plan. Keep ultraviolet sleeves, electrolytic cells or filter elements clean as applicable to the installed process. Verify flow, treatment-status and sampling indications and investigate recurring bypass or low-treatment alarms. Function-test automatic valves and record any bypass or treatment interruption in accordance with vessel procedures. Maintain calibration and service records for compliance-critical sensors. Refer to the manufacturer documentation for the exact figure for treatment limits, cleaning criteria, consumables and calibration values.
Spare Parts: Keep process-specific lamps, sleeves, electrolytic-cell service parts or filter elements as applicable, together with seals, sensors, actuators and manufacturer-recommended control spares. Replacement components must preserve the approved system configuration.
Use Cases: It is used for ballast-water management on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.
Electro-Cleen electrolysis BWTS
Datasheet
Techcross Techcross Electro-Cleen ECS-500
Techcross Electro-Cleen ECS-500 unverified
500 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
500
IMO Type Approval
ja
Common Failures & Inspection Points
  • Treatment reactor, ultraviolet lamp or electrolytic-cell deterioration caused by aging, fouling or electrical faults, resulting in low treatment output or an alarm
  • Filter blockage where fitted caused by sediment or biological loading, resulting in rising differential pressure, backflush cycling or reduced ballast flow
  • Sensor or sampling fault caused by fouling, calibration drift or blocked lines, resulting in implausible readings or automatic treatment shutdown
  • Valve, actuator or flow-control failure caused by corrosion, sticking or control faults, resulting in incorrect routing or insufficient treatment contact
  • Control-system or communication failure caused by software, network or power-supply faults, resulting in unavailable automatic operation or persistent alarms
Service: Inspect treatment reactors, filters, sensors, valves, pumps and control panels according to the approved BWMS maintenance plan. Keep ultraviolet sleeves, electrolytic cells or filter elements clean as applicable to the installed process. Verify flow, treatment-status and sampling indications and investigate recurring bypass or low-treatment alarms. Function-test automatic valves and record any bypass or treatment interruption in accordance with vessel procedures. Maintain calibration and service records for compliance-critical sensors. Refer to the manufacturer documentation for the exact figure for treatment limits, cleaning criteria, consumables and calibration values.
Spare Parts: Keep process-specific lamps, sleeves, electrolytic-cell service parts or filter elements as applicable, together with seals, sensors, actuators and manufacturer-recommended control spares. Replacement components must preserve the approved system configuration.
Use Cases: It is used for ballast-water management on merchant ships, passenger vessels, offshore units or other vessel types where this equipment category is fitted.
Electro-Cleen electrolysis BWTS
Datasheet
Techcross Techcross Electro-Cleen ECS-1000
Techcross Electro-Cleen ECS-1000 unverified
1000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
1000
IMO Type Approval
ja
Common Failures & Inspection Points
  • Fouling or exhausted treatment media can reduce treatment effectiveness, seen as deteriorating outlet-water quality or rising differential pressure
  • Dosing-pump or chemical-feed faults can interrupt treatment, noticed as unstable readings, low dosing indication or quality alarms
  • Blocked strainers or restricted piping can reduce flow, seen as low throughput or abnormal pump loading
  • Sensor drift or contamination can give incorrect control feedback, noticed as implausible readings or unnecessary alarms
  • Valve, seal or hose leakage can cause loss of treatment fluid or water, seen as wetness around the skid and inability to maintain normal operation
Service: Check water quality indicators, strainers, dosing points, media condition, pumps, valves, sensors and leak tightness. Confirm the unit changes state correctly between service, regeneration, flushing or standby modes where fitted. For chemical concentration, flow limits or replacement criteria not stated in the source entry, refer to the manufacturer documentation for the exact figure.
Spare Parts: Carry the maker-recommended filter elements or treatment consumables, dosing-pump service parts, seals, hoses, sensor consumables and common electrical fuses.
Use Cases: Applied to potable-water production and conditioning, domestic-water systems and other shipboard water services on merchant, passenger and offshore vessels.
Electro-Cleen electrolysis BWTS
Datasheet
Techcross Techcross Electro-Cleen ECS-2000
Techcross Electro-Cleen ECS-2000 unverified
2000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
2000
IMO Type Approval
ja
Common Failures & Inspection Points
  • Fouling or exhausted treatment media can reduce treatment effectiveness, seen as deteriorating outlet-water quality or rising differential pressure
  • Dosing-pump or chemical-feed faults can interrupt treatment, noticed as unstable readings, low dosing indication or quality alarms
  • Blocked strainers or restricted piping can reduce flow, seen as low throughput or abnormal pump loading
  • Sensor drift or contamination can give incorrect control feedback, noticed as implausible readings or unnecessary alarms
  • Valve, seal or hose leakage can cause loss of treatment fluid or water, seen as wetness around the skid and inability to maintain normal operation
Service: Check water quality indicators, strainers, dosing points, media condition, pumps, valves, sensors and leak tightness. Confirm the unit changes state correctly between service, regeneration, flushing or standby modes where fitted. For chemical concentration, flow limits or replacement criteria not stated in the source entry, refer to the manufacturer documentation for the exact figure.
Spare Parts: Carry the maker-recommended filter elements or treatment consumables, dosing-pump service parts, seals, hoses, sensor consumables and common electrical fuses.
Use Cases: Applied to potable-water production and conditioning, domestic-water systems and other shipboard water services on merchant, passenger and offshore vessels.
Electro-Cleen electrolysis BWTS
Datasheet
Techcross Techcross Electro-Cleen ECS-3000
Techcross Electro-Cleen ECS-3000 unverified
3000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
3000
IMO Type Approval
ja
Common Failures & Inspection Points
  • Fouling or exhausted treatment media can reduce treatment effectiveness, seen as deteriorating outlet-water quality or rising differential pressure
  • Dosing-pump or chemical-feed faults can interrupt treatment, noticed as unstable readings, low dosing indication or quality alarms
  • Blocked strainers or restricted piping can reduce flow, seen as low throughput or abnormal pump loading
  • Sensor drift or contamination can give incorrect control feedback, noticed as implausible readings or unnecessary alarms
  • Valve, seal or hose leakage can cause loss of treatment fluid or water, seen as wetness around the skid and inability to maintain normal operation
Service: Check water quality indicators, strainers, dosing points, media condition, pumps, valves, sensors and leak tightness. Confirm the unit changes state correctly between service, regeneration, flushing or standby modes where fitted. For chemical concentration, flow limits or replacement criteria not stated in the source entry, refer to the manufacturer documentation for the exact figure.
Spare Parts: Carry the maker-recommended filter elements or treatment consumables, dosing-pump service parts, seals, hoses, sensor consumables and common electrical fuses.
Use Cases: Applied to potable-water production and conditioning, domestic-water systems and other shipboard water services on merchant, passenger and offshore vessels.
Electro-Cleen electrolysis BWTS
Datasheet

De Nora

5
De Nora De Nora BALPURE 300
De Nora BALPURE 300 unverified
300 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
300
IMO Type Approval
ja
Uscg type approved
ja
Common Failures & Inspection Points
  • Filter blockage or automatic-backflush failure raises differential pressure and reduces ballast flow
  • UV lamp, electrode or electrolysis-cell deterioration reduces treatment intensity and causes treatment alarms
  • Low salinity, poor water quality or unsuitable process conditions causes reduced treatment effectiveness and system derating
  • Sensor, flowmeter or analyzer faults cause incorrect dose or intensity control and prevent compliant operation
  • Valve, dosing, neutralization or control faults cause bypass, failed sequence or discharge inhibition
Service: Inspect filters, UV reactors or electrolysis cells, pumps, valves, analyzers, flowmeters, dosing or neutralization equipment and control logs. Review alarms and treatment records and confirm bypass arrangements remain controlled. Clean and calibrate process sensors using approved procedures. Refer to the manufacturer and type-approval documentation for the exact figure for dose, intensity, flow and water-quality limits.
Spare Parts: Carry filter elements or screen service parts, UV lamps or electrode components as applicable, analyzer consumables, sensors, pump seals, solenoid valves and approved treatment chemicals where used.
Use Cases: Ballast-water uptake, treatment and discharge on vessels subject to ballast-water management requirements.
BALPURE electrolysis BWTS
Datasheet
De Nora De Nora BALPURE 600
De Nora BALPURE 600 unverified
600 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
600
IMO Type Approval
ja
Uscg type approved
ja
Common Failures & Inspection Points
  • Filter blockage or automatic-backflush failure raises differential pressure and reduces ballast flow
  • UV lamp, electrode or electrolysis-cell deterioration reduces treatment intensity and causes treatment alarms
  • Low salinity, poor water quality or unsuitable process conditions causes reduced treatment effectiveness and system derating
  • Sensor, flowmeter or analyzer faults cause incorrect dose or intensity control and prevent compliant operation
  • Valve, dosing, neutralization or control faults cause bypass, failed sequence or discharge inhibition
Service: Inspect filters, UV reactors or electrolysis cells, pumps, valves, analyzers, flowmeters, dosing or neutralization equipment and control logs. Review alarms and treatment records and confirm bypass arrangements remain controlled. Clean and calibrate process sensors using approved procedures. Refer to the manufacturer and type-approval documentation for the exact figure for dose, intensity, flow and water-quality limits.
Spare Parts: Carry filter elements or screen service parts, UV lamps or electrode components as applicable, analyzer consumables, sensors, pump seals, solenoid valves and approved treatment chemicals where used.
Use Cases: Ballast-water uptake, treatment and discharge on vessels subject to ballast-water management requirements.
BALPURE electrolysis BWTS
Datasheet
De Nora De Nora BALPURE 1500
De Nora BALPURE 1500 unverified
1500 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
1500
IMO Type Approval
ja
Uscg type approved
ja
Common Failures & Inspection Points
  • Filter blockage or automatic-backflush failure raises differential pressure and reduces ballast flow
  • UV lamp, electrode or electrolysis-cell deterioration reduces treatment intensity and causes treatment alarms
  • Low salinity, poor water quality or unsuitable process conditions causes reduced treatment effectiveness and system derating
  • Sensor, flowmeter or analyzer faults cause incorrect dose or intensity control and prevent compliant operation
  • Valve, dosing, neutralization or control faults cause bypass, failed sequence or discharge inhibition
Service: Inspect filters, UV reactors or electrolysis cells, pumps, valves, analyzers, flowmeters, dosing or neutralization equipment and control logs. Review alarms and treatment records and confirm bypass arrangements remain controlled. Clean and calibrate process sensors using approved procedures. Refer to the manufacturer and type-approval documentation for the exact figure for dose, intensity, flow and water-quality limits.
Spare Parts: Carry filter elements or screen service parts, UV lamps or electrode components as applicable, analyzer consumables, sensors, pump seals, solenoid valves and approved treatment chemicals where used.
Use Cases: Ballast-water uptake, treatment and discharge on vessels subject to ballast-water management requirements.
BALPURE electrolysis BWTS
Datasheet
De Nora De Nora BALPURE 3000
De Nora BALPURE 3000 unverified
3000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
3000
IMO Type Approval
ja
Uscg type approved
ja
BALPURE electrolysis BWTS
Datasheet
De Nora De Nora BALPURE 6000
De Nora BALPURE 6000 unverified
6000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
6000
IMO Type Approval
ja
Uscg type approved
ja
Common Failures & Inspection Points
  • Filter blockage or automatic-backflush failure raises differential pressure and reduces ballast flow
  • UV lamp, electrode or electrolysis-cell deterioration reduces treatment intensity and causes treatment alarms
  • Low salinity, poor water quality or unsuitable process conditions causes reduced treatment effectiveness and system derating
  • Sensor, flowmeter or analyzer faults cause incorrect dose or intensity control and prevent compliant operation
  • Valve, dosing, neutralization or control faults cause bypass, failed sequence or discharge inhibition
Service: Inspect filters, UV reactors or electrolysis cells, pumps, valves, analyzers, flowmeters, dosing or neutralization equipment and control logs. Review alarms and treatment records and confirm bypass arrangements remain controlled. Clean and calibrate process sensors using approved procedures. Refer to the manufacturer and type-approval documentation for the exact figure for dose, intensity, flow and water-quality limits.
Spare Parts: Carry filter elements or screen service parts, UV lamps or electrode components as applicable, analyzer consumables, sensors, pump seals, solenoid valves and approved treatment chemicals where used.
Use Cases: Ballast-water uptake, treatment and discharge on vessels subject to ballast-water management requirements.
BALPURE electrolysis BWTS
Datasheet

Panasia

5
PANASIA PANASIA GloEn-Patrol 250
PANASIA GloEn-Patrol 250 unverified
250 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
250
IMO Type Approval
ja
Common Failures & Inspection Points
  • Treatment reactor, ultraviolet lamp or electrolytic-cell deterioration caused by aging, fouling or electrical faults, resulting in low treatment output or an alarm
  • Filter blockage where fitted caused by sediment or biological loading, resulting in rising differential pressure, backflush cycling or reduced ballast flow
  • Sensor or sampling fault caused by fouling, calibration drift or blocked lines, resulting in implausible readings or automatic treatment shutdown
  • Valve, actuator or flow-control failure caused by corrosion, sticking or control faults, resulting in incorrect routing or insufficient treatment contact
  • Control-system or communication failure caused by software, network or power-supply faults, resulting in unavailable automatic operation or persistent alarms
Service: Inspect treatment reactors, filters, sensors, valves, pumps and control panels according to the approved BWMS maintenance plan. Keep ultraviolet sleeves, electrolytic cells or filter elements clean as applicable to the installed process. Verify flow, treatment-status and sampling indications and investigate recurring bypass or low-treatment alarms. Function-test automatic valves and record any bypass or treatment interruption in accordance with vessel procedures. Maintain calibration and service records for compliance-critical sensors. Refer to the manufacturer documentation for the exact figure for treatment limits, cleaning criteria, consumables and calibration values.
Spare Parts: Keep process-specific lamps, sleeves, electrolytic-cell service parts or filter elements as applicable, together with seals, sensors, actuators and manufacturer-recommended control spares. Replacement components must preserve the approved system configuration. Carry consumables appropriate to expected ballast operations and voyage duration.
Use Cases: Ballast-water uptake and discharge treatment on merchant ships and offshore vessels subject to ballast-water management requirements.
GloEn-Patrol electrolysis BWMS
Datasheet
PANASIA PANASIA GloEn-Patrol 500
PANASIA GloEn-Patrol 500 unverified
500 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
500
IMO Type Approval
ja
Common Failures & Inspection Points
  • Treatment reactor, ultraviolet lamp or electrolytic-cell deterioration caused by aging, fouling or electrical faults, resulting in low treatment output or an alarm
  • Filter blockage where fitted caused by sediment or biological loading, resulting in rising differential pressure, backflush cycling or reduced ballast flow
  • Sensor or sampling fault caused by fouling, calibration drift or blocked lines, resulting in implausible readings or automatic treatment shutdown
  • Valve, actuator or flow-control failure caused by corrosion, sticking or control faults, resulting in incorrect routing or insufficient treatment contact
  • Control-system or communication failure caused by software, network or power-supply faults, resulting in unavailable automatic operation or persistent alarms
Service: Inspect treatment reactors, filters, sensors, valves, pumps and control panels according to the approved BWMS maintenance plan. Keep ultraviolet sleeves, electrolytic cells or filter elements clean as applicable to the installed process. Verify flow, treatment-status and sampling indications and investigate recurring bypass or low-treatment alarms. Function-test automatic valves and record any bypass or treatment interruption in accordance with vessel procedures. Maintain calibration and service records for compliance-critical sensors. Refer to the manufacturer documentation for the exact figure for treatment limits, cleaning criteria, consumables and calibration values.
Spare Parts: Keep process-specific lamps, sleeves, electrolytic-cell service parts or filter elements as applicable, together with seals, sensors, actuators and manufacturer-recommended control spares. Replacement components must preserve the approved system configuration. Carry consumables appropriate to expected ballast operations and voyage duration.
Use Cases: Ballast-water uptake and discharge treatment on merchant ships and offshore vessels subject to ballast-water management requirements.
GloEn-Patrol electrolysis BWMS
Datasheet
PANASIA PANASIA GloEn-Patrol 1000
PANASIA GloEn-Patrol 1000 unverified
1000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
1000
IMO Type Approval
ja
Common Failures & Inspection Points
  • Treatment reactor, ultraviolet lamp or electrolytic-cell deterioration caused by aging, fouling or electrical faults, resulting in low treatment output or an alarm
  • Filter blockage where fitted caused by sediment or biological loading, resulting in rising differential pressure, backflush cycling or reduced ballast flow
  • Sensor or sampling fault caused by fouling, calibration drift or blocked lines, resulting in implausible readings or automatic treatment shutdown
  • Valve, actuator or flow-control failure caused by corrosion, sticking or control faults, resulting in incorrect routing or insufficient treatment contact
  • Control-system or communication failure caused by software, network or power-supply faults, resulting in unavailable automatic operation or persistent alarms
Service: Inspect treatment reactors, filters, sensors, valves, pumps and control panels according to the approved BWMS maintenance plan. Keep ultraviolet sleeves, electrolytic cells or filter elements clean as applicable to the installed process. Verify flow, treatment-status and sampling indications and investigate recurring bypass or low-treatment alarms. Function-test automatic valves and record any bypass or treatment interruption in accordance with vessel procedures. Maintain calibration and service records for compliance-critical sensors. Refer to the manufacturer documentation for the exact figure for treatment limits, cleaning criteria, consumables and calibration values.
Spare Parts: Keep process-specific lamps, sleeves, electrolytic-cell service parts or filter elements as applicable, together with seals, sensors, actuators and manufacturer-recommended control spares. Replacement components must preserve the approved system configuration. Carry consumables appropriate to expected ballast operations and voyage duration.
Use Cases: Ballast-water uptake and discharge treatment on merchant ships and offshore vessels subject to ballast-water management requirements.
GloEn-Patrol electrolysis BWMS
Datasheet
PANASIA PANASIA GloEn-Patrol 2000
PANASIA GloEn-Patrol 2000 unverified
2000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
2000
IMO Type Approval
ja
Common Failures & Inspection Points
  • Treatment reactor, ultraviolet lamp or electrolytic-cell deterioration caused by aging, fouling or electrical faults, resulting in low treatment output or an alarm
  • Filter blockage where fitted caused by sediment or biological loading, resulting in rising differential pressure, backflush cycling or reduced ballast flow
  • Sensor or sampling fault caused by fouling, calibration drift or blocked lines, resulting in implausible readings or automatic treatment shutdown
  • Valve, actuator or flow-control failure caused by corrosion, sticking or control faults, resulting in incorrect routing or insufficient treatment contact
  • Control-system or communication failure caused by software, network or power-supply faults, resulting in unavailable automatic operation or persistent alarms
Service: Inspect treatment reactors, filters, sensors, valves, pumps and control panels according to the approved BWMS maintenance plan. Keep ultraviolet sleeves, electrolytic cells or filter elements clean as applicable to the installed process. Verify flow, treatment-status and sampling indications and investigate recurring bypass or low-treatment alarms. Function-test automatic valves and record any bypass or treatment interruption in accordance with vessel procedures. Maintain calibration and service records for compliance-critical sensors. Refer to the manufacturer documentation for the exact figure for treatment limits, cleaning criteria, consumables and calibration values.
Spare Parts: Keep process-specific lamps, sleeves, electrolytic-cell service parts or filter elements as applicable, together with seals, sensors, actuators and manufacturer-recommended control spares. Replacement components must preserve the approved system configuration. Carry consumables appropriate to expected ballast operations and voyage duration.
Use Cases: Ballast-water uptake and discharge treatment on merchant ships and offshore vessels subject to ballast-water management requirements.
GloEn-Patrol electrolysis BWMS
Datasheet
PANASIA PANASIA GloEn-Patrol 3500
PANASIA GloEn-Patrol 3500 unverified
3500 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
3500
IMO Type Approval
ja
Common Failures & Inspection Points
  • Treatment reactor, ultraviolet lamp or electrolytic-cell deterioration caused by aging, fouling or electrical faults, resulting in low treatment output or an alarm
  • Filter blockage where fitted caused by sediment or biological loading, resulting in rising differential pressure, backflush cycling or reduced ballast flow
  • Sensor or sampling fault caused by fouling, calibration drift or blocked lines, resulting in implausible readings or automatic treatment shutdown
  • Valve, actuator or flow-control failure caused by corrosion, sticking or control faults, resulting in incorrect routing or insufficient treatment contact
  • Control-system or communication failure caused by software, network or power-supply faults, resulting in unavailable automatic operation or persistent alarms
Service: Inspect treatment reactors, filters, sensors, valves, pumps and control panels according to the approved BWMS maintenance plan. Keep ultraviolet sleeves, electrolytic cells or filter elements clean as applicable to the installed process. Verify flow, treatment-status and sampling indications and investigate recurring bypass or low-treatment alarms. Function-test automatic valves and record any bypass or treatment interruption in accordance with vessel procedures. Maintain calibration and service records for compliance-critical sensors. Refer to the manufacturer documentation for the exact figure for treatment limits, cleaning criteria, consumables and calibration values.
Spare Parts: Keep process-specific lamps, sleeves, electrolytic-cell service parts or filter elements as applicable, together with seals, sensors, actuators and manufacturer-recommended control spares. Replacement components must preserve the approved system configuration. Carry consumables appropriate to expected ballast operations and voyage duration.
Use Cases: Ballast-water uptake and discharge treatment on merchant ships and offshore vessels subject to ballast-water management requirements.
GloEn-Patrol electrolysis BWMS
Datasheet

Sunrui

5
Sunrui Sunrui BalClor 300
Sunrui BalClor 300 unverified
300 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
300
IMO Type Approval
ja
Common Failures & Inspection Points
  • Filter blockage or backflush fault, typically indicated by high differential pressure, reduced ballast flow or alarm
  • UV lamp/sleeve fouling or lamp failure, typically indicated by low UV intensity and treatment alarm
  • Electrolytic cell scaling/fouling where applicable, typically indicated by low oxidant production, high current or treatment failure
  • TRO/quality sensor drift or sample-line blockage, typically indicated by incorrect treatment/neutralization control
  • Control/valve interlock fault, typically indicated by inability to enter treatment mode or automatic shutdown
Service: Inspect filters and backflush, UV or electrolytic treatment components, sensors/sample lines, valves, dosing/neutralization and event records; exact operating limits and calibration criteria come from the approved type-specific documentation.
Spare Parts: Keep filter seals/elements where applicable, UV lamps/sleeves, sensor reagents or cells, dosing-pump kits, valve actuators and critical control modules.
Use Cases: Used on ships subject to ballast-water management requirements during ballasting and deballasting operations. This entry applies specifically to the Electrolysis BWTS variant identified as Sunrui Sunrui BalClor 300.
BalClor electrolysis BWTS
Datasheet
Sunrui Sunrui BalClor 500
Sunrui BalClor 500 unverified
500 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
500
IMO Type Approval
ja
Common Failures & Inspection Points
  • Filter blockage or backflush fault, typically indicated by high differential pressure, reduced ballast flow or alarm
  • UV lamp/sleeve fouling or lamp failure, typically indicated by low UV intensity and treatment alarm
  • Electrolytic cell scaling/fouling where applicable, typically indicated by low oxidant production, high current or treatment failure
  • TRO/quality sensor drift or sample-line blockage, typically indicated by incorrect treatment/neutralization control
  • Control/valve interlock fault, typically indicated by inability to enter treatment mode or automatic shutdown
Service: Inspect filters and backflush, UV or electrolytic treatment components, sensors/sample lines, valves, dosing/neutralization and event records; exact operating limits and calibration criteria come from the approved type-specific documentation.
Spare Parts: Keep filter seals/elements where applicable, UV lamps/sleeves, sensor reagents or cells, dosing-pump kits, valve actuators and critical control modules.
Use Cases: Used on ships subject to ballast-water management requirements during ballasting and deballasting operations. This entry applies specifically to the Electrolysis BWTS variant identified as Sunrui Sunrui BalClor 500.
BalClor electrolysis BWTS
Datasheet
Sunrui Sunrui BalClor 1000
Sunrui BalClor 1000 unverified
1000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
1000
IMO Type Approval
ja
Common Failures & Inspection Points
  • Filter blockage or backflush fault, typically indicated by high differential pressure, reduced ballast flow or alarm
  • UV lamp/sleeve fouling or lamp failure, typically indicated by low UV intensity and treatment alarm
  • Electrolytic cell scaling/fouling where applicable, typically indicated by low oxidant production, high current or treatment failure
  • TRO/quality sensor drift or sample-line blockage, typically indicated by incorrect treatment/neutralization control
  • Control/valve interlock fault, typically indicated by inability to enter treatment mode or automatic shutdown
Service: Inspect filters and backflush, UV or electrolytic treatment components, sensors/sample lines, valves, dosing/neutralization and event records; exact operating limits and calibration criteria come from the approved type-specific documentation.
Spare Parts: Keep filter seals/elements where applicable, UV lamps/sleeves, sensor reagents or cells, dosing-pump kits, valve actuators and critical control modules.
Use Cases: Used on ships subject to ballast-water management requirements during ballasting and deballasting operations. This entry applies specifically to the Electrolysis BWTS variant identified as Sunrui Sunrui BalClor 1000.
BalClor electrolysis BWTS
Datasheet
Sunrui Sunrui BalClor 2000
Sunrui BalClor 2000 unverified
2000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
2000
IMO Type Approval
ja
Common Failures & Inspection Points
  • Filter blockage or backflush fault, typically indicated by high differential pressure, reduced ballast flow or alarm
  • UV lamp/sleeve fouling or lamp failure, typically indicated by low UV intensity and treatment alarm
  • Electrolytic cell scaling/fouling where applicable, typically indicated by low oxidant production, high current or treatment failure
  • TRO/quality sensor drift or sample-line blockage, typically indicated by incorrect treatment/neutralization control
  • Control/valve interlock fault, typically indicated by inability to enter treatment mode or automatic shutdown
Service: Inspect filters and backflush, UV or electrolytic treatment components, sensors/sample lines, valves, dosing/neutralization and event records; exact operating limits and calibration criteria come from the approved type-specific documentation.
Spare Parts: Keep filter seals/elements where applicable, UV lamps/sleeves, sensor reagents or cells, dosing-pump kits, valve actuators and critical control modules.
Use Cases: Used on ships subject to ballast-water management requirements during ballasting and deballasting operations. This entry applies specifically to the Electrolysis BWTS variant identified as Sunrui Sunrui BalClor 2000.
BalClor electrolysis BWTS
Datasheet
Sunrui Sunrui BalClor 5000
Sunrui BalClor 5000 unverified
5000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
5000
IMO Type Approval
ja
Common Failures & Inspection Points
  • Filter blockage or backflush fault, typically indicated by high differential pressure, reduced ballast flow or alarm
  • UV lamp/sleeve fouling or lamp failure, typically indicated by low UV intensity and treatment alarm
  • Electrolytic cell scaling/fouling where applicable, typically indicated by low oxidant production, high current or treatment failure
  • TRO/quality sensor drift or sample-line blockage, typically indicated by incorrect treatment/neutralization control
  • Control/valve interlock fault, typically indicated by inability to enter treatment mode or automatic shutdown
Service: Inspect filters and backflush, UV or electrolytic treatment components, sensors/sample lines, valves, dosing/neutralization and event records; exact operating limits and calibration criteria come from the approved type-specific documentation.
Spare Parts: Keep filter seals/elements where applicable, UV lamps/sleeves, sensor reagents or cells, dosing-pump kits, valve actuators and critical control modules.
Use Cases: Used on ships subject to ballast-water management requirements during ballasting and deballasting operations. This entry applies specifically to the Electrolysis BWTS variant identified as Sunrui Sunrui BalClor 5000.
BalClor electrolysis BWTS
Datasheet

Wärtsilä

4
Wärtsilä Wärtsilä Aquarius EC 300
Wärtsilä Aquarius EC 300
300 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
300
IMO Type Approval
ja
Technical Specifications
Filtration
40 Mikron Rückspülfilter mit automatischer Selbstreinigung, Differenzdrucksensor triggert automatischen Reinigungszyklus, modernes Manta-Filtersystem mit OneMotion-Scanner
UV-Technologie (Aquarius UV)
Mitteldruck-UV-Reaktor mit selbstreinigendem Quarzschlauch, mechanischer Wischer zur Leistungsverwaltung, 2-stufiger Prozess (Filtration + UV-Bestrahlung)
EC-Technologie (Aquarius EC)
Seitenstrom-Elektro-Chlorierung, statischer Mischer für Desinfektionsmittel-Injektion, maximale Dosierung 10 ppm Chlor im Ballastwasser
Zulassungen
IMO Typ-Zulassung (MEPC.300(72) ab 2019), USCG Typ-Zulassung, ATEX/IECEx für Aquarius UVX (Zone 1 IIC T4)
Betrieb
Fully automatic, minimal crew interaction (annual maintenance + monitoring only), user-friendly operation
Product Lines
  • Aquarius UV
  • Aquarius EC (Electro-Chlorination)
  • Aquarius UVX (Zone 1 IIC T4 hazardous area)
Common Failures & Inspection Points
  • Area: UV lamp power loss due to ageing and wear
    Check: Quarterly cleaning of quartz tubes, annual visual inspection of UV lamps, verification of UV intensity measurements by calibrated sensors, documentation of operating hours
  • Area: Filter differential pressure rise due to dirt deposits and sensor failure
    Check: Differential pressure sensor functional test (should automatically trigger backflush cycle at approx. 0.3 bar), visual inspection of filter element for damage/blockage, verification of differential pressure after backflushing (should reach < 0.1 bar)
  • Area: UV intensity sensor miscalibration and malfunction
    Check: Annual sensor calibration (preferably by manufacturer), metric verification of measured UV intensity against reference values, isolation test of sensor against environmental influence, verification of alarm thresholds and signal transmission
  • Area: Electrochlorination cell (EC systems) - wear and chemical effectiveness
    Check: Verification of total residual chlorine (TRO) after treatment (must remain ≤ 0.1 mg/L), visual condition of EC cell for corrosion/wear, verification of static mixers for blockage, measurement of voltage ratios at EC electrodes
  • Area: Automatic backflush valves and hydraulic malfunction
    Check: Functional test of automatic backflush valves (should respond reliably to sensor signal), visual inspection of all hydraulic lines and connections for leaks, verification of pump pressure regulator, flow rate verification against manufacturer specification
  • Area: Certification and conformity documentation
    Check: Verification of valid type approval certificates (IMO MEPC.300(72), USCG), control of ballast water record book with current entries, verification of conducted biological commissioning tests (required from 01.06.2022), verification of maintenance protocols and service records

Type-universal inspection/maintenance points for Ballast Water Treatment Systems (Wärtsilä, Mega-Schwarm 2026-06). Per-model-specs not auto-filled.

Aquarius EC electrolysis BWTS [08.08.2026] Datenblattlink entfernt (fehler 404): https://www.wartsila.com/docs/default-source/product-files/bwms-files/brochure-o-aquarius-uv.pdf
Datasheet
Wärtsilä Wärtsilä Aquarius EC 600
Wärtsilä Aquarius EC 600
600 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
600
IMO Type Approval
ja
Technical Specifications
Filtration
40 Mikron Rückspülfilter mit automatischer Selbstreinigung, Differenzdrucksensor triggert automatischen Reinigungszyklus, modernes Manta-Filtersystem mit OneMotion-Scanner
UV-Technologie (Aquarius UV)
Mitteldruck-UV-Reaktor mit selbstreinigendem Quarzschlauch, mechanischer Wischer zur Leistungsverwaltung, 2-stufiger Prozess (Filtration + UV-Bestrahlung)
EC-Technologie (Aquarius EC)
Seitenstrom-Elektro-Chlorierung, statischer Mischer für Desinfektionsmittel-Injektion, maximale Dosierung 10 ppm Chlor im Ballastwasser
Zulassungen
IMO Typ-Zulassung (MEPC.300(72) ab 2019), USCG Typ-Zulassung, ATEX/IECEx für Aquarius UVX (Zone 1 IIC T4)
Betrieb
Fully automatic, minimal crew interaction (annual maintenance + monitoring only), user-friendly operation
Product Lines
  • Aquarius UV
  • Aquarius EC (Electro-Chlorination)
  • Aquarius UVX (Zone 1 IIC T4 hazardous area)
Common Failures & Inspection Points
  • Area: UV lamp power loss due to ageing and wear
    Check: Quarterly cleaning of quartz tubes, annual visual inspection of UV lamps, verification of UV intensity measurements by calibrated sensors, documentation of operating hours
  • Area: Filter differential pressure rise due to dirt deposits and sensor failure
    Check: Differential pressure sensor functional test (should automatically trigger backflush cycle at approx. 0.3 bar), visual inspection of filter element for damage/blockage, verification of differential pressure after backflushing (should reach < 0.1 bar)
  • Area: UV intensity sensor miscalibration and malfunction
    Check: Annual sensor calibration (preferably by manufacturer), metric verification of measured UV intensity against reference values, isolation test of sensor against environmental influence, verification of alarm thresholds and signal transmission
  • Area: Electrochlorination cell (EC systems) - wear and chemical effectiveness
    Check: Verification of total residual chlorine (TRO) after treatment (must remain ≤ 0.1 mg/L), visual condition of EC cell for corrosion/wear, verification of static mixers for blockage, measurement of voltage ratios at EC electrodes
  • Area: Automatic backflush valves and hydraulic malfunction
    Check: Functional test of automatic backflush valves (should respond reliably to sensor signal), visual inspection of all hydraulic lines and connections for leaks, verification of pump pressure regulator, flow rate verification against manufacturer specification
  • Area: Certification and conformity documentation
    Check: Verification of valid type approval certificates (IMO MEPC.300(72), USCG), control of ballast water record book with current entries, verification of conducted biological commissioning tests (required from 01.06.2022), verification of maintenance protocols and service records

Type-universal inspection/maintenance points for Ballast Water Treatment Systems (Wärtsilä, Mega-Schwarm 2026-06). Per-model-specs not auto-filled.

Aquarius EC electrolysis BWTS [08.08.2026] Datenblattlink entfernt (fehler 404): https://www.wartsila.com/docs/default-source/product-files/bwms-files/brochure-o-aquarius-uv.pdf
Datasheet
Wärtsilä Wärtsilä Aquarius EC 1500
Wärtsilä Aquarius EC 1500
1500 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
1500
IMO Type Approval
ja
Technical Specifications
Filtration
40 Mikron Rückspülfilter mit automatischer Selbstreinigung, Differenzdrucksensor triggert automatischen Reinigungszyklus, modernes Manta-Filtersystem mit OneMotion-Scanner
UV-Technologie (Aquarius UV)
Mitteldruck-UV-Reaktor mit selbstreinigendem Quarzschlauch, mechanischer Wischer zur Leistungsverwaltung, 2-stufiger Prozess (Filtration + UV-Bestrahlung)
EC-Technologie (Aquarius EC)
Seitenstrom-Elektro-Chlorierung, statischer Mischer für Desinfektionsmittel-Injektion, maximale Dosierung 10 ppm Chlor im Ballastwasser
Zulassungen
IMO Typ-Zulassung (MEPC.300(72) ab 2019), USCG Typ-Zulassung, ATEX/IECEx für Aquarius UVX (Zone 1 IIC T4)
Betrieb
Fully automatic, minimal crew interaction (annual maintenance + monitoring only), user-friendly operation
Product Lines
  • Aquarius UV
  • Aquarius EC (Electro-Chlorination)
  • Aquarius UVX (Zone 1 IIC T4 hazardous area)
Common Failures & Inspection Points
  • Area: UV lamp power loss due to ageing and wear
    Check: Quarterly cleaning of quartz tubes, annual visual inspection of UV lamps, verification of UV intensity measurements by calibrated sensors, documentation of operating hours
  • Area: Filter differential pressure rise due to dirt deposits and sensor failure
    Check: Differential pressure sensor functional test (should automatically trigger backflush cycle at approx. 0.3 bar), visual inspection of filter element for damage/blockage, verification of differential pressure after backflushing (should reach < 0.1 bar)
  • Area: UV intensity sensor miscalibration and malfunction
    Check: Annual sensor calibration (preferably by manufacturer), metric verification of measured UV intensity against reference values, isolation test of sensor against environmental influence, verification of alarm thresholds and signal transmission
  • Area: Electrochlorination cell (EC systems) - wear and chemical effectiveness
    Check: Verification of total residual chlorine (TRO) after treatment (must remain ≤ 0.1 mg/L), visual condition of EC cell for corrosion/wear, verification of static mixers for blockage, measurement of voltage ratios at EC electrodes
  • Area: Automatic backflush valves and hydraulic malfunction
    Check: Functional test of automatic backflush valves (should respond reliably to sensor signal), visual inspection of all hydraulic lines and connections for leaks, verification of pump pressure regulator, flow rate verification against manufacturer specification
  • Area: Certification and conformity documentation
    Check: Verification of valid type approval certificates (IMO MEPC.300(72), USCG), control of ballast water record book with current entries, verification of conducted biological commissioning tests (required from 01.06.2022), verification of maintenance protocols and service records

Type-universal inspection/maintenance points for Ballast Water Treatment Systems (Wärtsilä, Mega-Schwarm 2026-06). Per-model-specs not auto-filled.

Aquarius EC electrolysis BWTS [08.08.2026] Datenblattlink entfernt (fehler 404): https://www.wartsila.com/docs/default-source/product-files/bwms-files/brochure-o-aquarius-uv.pdf
Datasheet
Wärtsilä Wärtsilä Aquarius EC 3000
Wärtsilä Aquarius EC 3000
3000 m³/h · Ballast water
Treatment Type
electrolysis
Capacity (m³/h)
3000
IMO Type Approval
ja
Technical Specifications
Filtration
40 Mikron Rückspülfilter mit automatischer Selbstreinigung, Differenzdrucksensor triggert automatischen Reinigungszyklus, modernes Manta-Filtersystem mit OneMotion-Scanner
UV-Technologie (Aquarius UV)
Mitteldruck-UV-Reaktor mit selbstreinigendem Quarzschlauch, mechanischer Wischer zur Leistungsverwaltung, 2-stufiger Prozess (Filtration + UV-Bestrahlung)
EC-Technologie (Aquarius EC)
Seitenstrom-Elektro-Chlorierung, statischer Mischer für Desinfektionsmittel-Injektion, maximale Dosierung 10 ppm Chlor im Ballastwasser
Zulassungen
IMO Typ-Zulassung (MEPC.300(72) ab 2019), USCG Typ-Zulassung, ATEX/IECEx für Aquarius UVX (Zone 1 IIC T4)
Betrieb
Fully automatic, minimal crew interaction (annual maintenance + monitoring only), user-friendly operation
Product Lines
  • Aquarius UV
  • Aquarius EC (Electro-Chlorination)
  • Aquarius UVX (Zone 1 IIC T4 hazardous area)
Common Failures & Inspection Points
  • Area: UV lamp power loss due to ageing and wear
    Check: Quarterly cleaning of quartz tubes, annual visual inspection of UV lamps, verification of UV intensity measurements by calibrated sensors, documentation of operating hours
  • Area: Filter differential pressure rise due to dirt deposits and sensor failure
    Check: Differential pressure sensor functional test (should automatically trigger backflush cycle at approx. 0.3 bar), visual inspection of filter element for damage/blockage, verification of differential pressure after backflushing (should reach < 0.1 bar)
  • Area: UV intensity sensor miscalibration and malfunction
    Check: Annual sensor calibration (preferably by manufacturer), metric verification of measured UV intensity against reference values, isolation test of sensor against environmental influence, verification of alarm thresholds and signal transmission
  • Area: Electrochlorination cell (EC systems) - wear and chemical effectiveness
    Check: Verification of total residual chlorine (TRO) after treatment (must remain ≤ 0.1 mg/L), visual condition of EC cell for corrosion/wear, verification of static mixers for blockage, measurement of voltage ratios at EC electrodes
  • Area: Automatic backflush valves and hydraulic malfunction
    Check: Functional test of automatic backflush valves (should respond reliably to sensor signal), visual inspection of all hydraulic lines and connections for leaks, verification of pump pressure regulator, flow rate verification against manufacturer specification
  • Area: Certification and conformity documentation
    Check: Verification of valid type approval certificates (IMO MEPC.300(72), USCG), control of ballast water record book with current entries, verification of conducted biological commissioning tests (required from 01.06.2022), verification of maintenance protocols and service records

Type-universal inspection/maintenance points for Ballast Water Treatment Systems (Wärtsilä, Mega-Schwarm 2026-06). Per-model-specs not auto-filled.

Aquarius EC electrolysis BWTS [08.08.2026] Datenblattlink entfernt (fehler 404): https://www.wartsila.com/docs/default-source/product-files/bwms-files/brochure-o-aquarius-uv.pdf
Datasheet

Ecochlor

1
Ecochlor Ecochlor BWTS
Ecochlor BWTS
variable · Ballast Water Treatment · Chlorine dioxide electrolysis
Type
chlorine_dioxide
IMO Approved
ja
Common Failures & Inspection Points
  • ClO2 generator failure
  • Chemical supply depletion
  • Neutralization imbalance
  • Dosing pump failure
Service: Chlorine dioxide chemical treatment. Chemical resupply required.
Spare Parts: Ecochlor: UV-Lampen an Bord vorhalten (2 Sätze). Filterelemente: 1 Satz. Lead time: 2-4 Wochen.
Strengths
  • Proven biocidal efficacy against bacteria, viruses, algae and plankton
  • No need for bulk storage of hazardous chlorine gas; generates disinfectant on‑demand
  • IMO Type‑Approval (D‑2) and USCG type approval available for many models
  • Compact modular design suitable for retrofits on a range of vessel sizes
Weaknesses
  • Requires continuous supply of sodium chlorite feedstock and periodic chemical resupply
  • Electrolyser and dosing pump are mechanical components that can fail (generator or pump failures reported)
  • Power consumption can be significant on low‑power vessels
  • Neutralisation system must be carefully balanced to avoid excess chlorine dioxide discharge
Typical Vessels: TankerBulk CarrierContainer ShipGeneral CargoCruise Vessel
Certifications: IMO D-2USCG Type ApprovalDNV Class Approval
Decision Guide: Choose if you need a chemically‑based, IMO‑approved BWTS with on‑board generation of chlorine dioxide and have reliable access to sodium chlorite supplies. Avoid if vessel power is limited, space for chemical feed tanks is constrained, or you prefer a non‑chemical technology such as UV or filtration only.
Use Cases: Commonly installed on existing vessels undergoing retrofit to comply with the IMO Ballast Water Management Convention, as well as on new builds where a compact, modular system is required. Frequently selected by operators of tankers and bulk carriers that operate in regions with strict ballast‑water discharge standards.
Datasheet

JFE Engineering

1
JFE Engineering BallastAce BWTS
BallastAce BWTS
variable · Ballast Water Treatment · Electrolysis BWTS
Type
electrolysis
IMO Approved
ja
Origin
Japan
Common Failures & Inspection Points
  • Electrode degradation
  • Electrolysis cell scaling
  • Control system failure
Service: Japanese manufacturer. Electrode life monitoring.
Spare Parts: JFE Engineering: UV-Lampen an Bord vorhalten (2 Sätze). Filterelemente: 1 Satz. Lead time: 2-4 Wochen.
Strengths
  • Chemical‑free operation – no storage or handling of hazardous reagents
  • Compact footprint suitable for retrofits on existing vessels
  • Real‑time electrode life monitoring reduces unexpected downtime
  • Low consumable cost after installation (no chemicals to purchase)
  • Proven IMO D-2 approval indicating compliance with the international ballast water standard
Weaknesses
  • Electrode degradation over time requires scheduled replacement
  • Scaling of electrolysis cells in high‑hardness waters can reduce efficiency
  • Control system reliability issues reported; may need redundant monitoring
  • Higher electrical power demand compared with some UV or filtration systems
  • Performance can be sensitive to water chemistry variations
Typical Vessels: TankerContainer shipBulk carrierGeneral cargo vesselRo‑Ro / Ferry
Certifications: IMO D-2
Decision Guide: Choose if you prefer a chemical‑free, compact system with Japanese after‑sales support and verified IMO D‑2 compliance. Avoid if your operating profile involves very hard water prone to scaling, limited onboard electrical capacity, or if you require a proven low‑maintenance solution with minimal control‑system complexity.
Use Cases: Commonly installed on newbuilds and retrofitted vessels that operate across diverse ballast‑water exchange zones, especially where strict chemical discharge regulations apply. Favoured by operators seeking to minimize consumable logistics while maintaining compliance with the IMO Ballast Water Management Convention.
Datasheet

NK

1
NK Company NK Balclor BWTS
NK Balclor BWTS
variable · Ballast Water Treatment · electrolysis BWTS
Type
electrolysis
IMO Approved
ja
Origin
Korea
Common Failures & Inspection Points
  • Electrode erosion
  • TRO sensor drift
  • Power supply failure
  • Hydrogen gas ventilation issue
Service: Korean manufacturer. Monitor hydrogen generation during electrolysis.
Spare Parts: NK Company: UV-Lampen an Bord vorhalten (2 Sätze). Filterelemente: 1 Satz. Lead time: 2-4 Wochen.
Strengths
  • Chemical‑free operation – no need for stored biocides or reagents
  • Compact footprint suitable for vessels with limited installation space
  • IMO D-2 approval provides direct compliance with the Ballast Water Management Convention
  • Integrated hydrogen generation monitoring helps meet safety requirements
Weaknesses
  • Electrode erosion requires scheduled replacement and adds lifecycle cost
  • TRO (Total Residual Oxidant) sensor drift can affect performance if not regularly calibrated
  • High electrical power demand may be challenging for vessels with limited power margin
  • Hydrogen gas venting must be carefully managed to avoid safety hazards
Typical Vessels: Bulk CarrierContainer ShipGeneral Cargo VesselRo‑Ro / Ferry
Certifications: IMO D-2
Decision Guide: Choose if: the vessel needs a compact, chemical‑free BWTS, has sufficient electrical power and can implement proper hydrogen ventilation; the operator values IMO D-2 compliance without handling hazardous chemicals. Avoid if: the ship operates on very low power margins, cannot accommodate regular electrode maintenance, or lacks adequate safety systems for hydrogen gas management.
Use Cases: Commonly installed on medium‑size cargo vessels during retrofits to meet Ballast Water Management Convention deadlines, as well as on new builds where space and weight savings are a priority. Frequently selected by operators in Asian ports seeking reliable, chemical‑free treatment solutions.
Datasheet

Panasonic (GS-YUASA)

1
Panasonic (GS-YUASA) Panasonic Marine BWTS
Panasonic Marine BWTS
variable · Ballast Water Treatment · Electrolysis BWTS
Type
electrolysis
Origin
Japan
Common Failures & Inspection Points
  • Electrode failure
  • Control board malfunction
  • TRO measurement error
Service: Japanese electronics manufacturer entering marine. Electrode service.
Spare Parts: Panasonic (GS-YUASA): UV-Lampen an Bord vorhalten (2 Sätze). Filterelemente: 1 Satz. Lead time: 2-4 Wochen.
Strengths
  • Compact footprint suitable for vessels with limited space
  • No need to store or handle chemicals on board
  • Automated control logic from a reputable electronics manufacturer
  • Relatively low power consumption compared with thermal systems
  • Straight‑forward installation and integration
Weaknesses
  • Electrode wear requires scheduled replacement
  • Effectiveness can be reduced in water with high organic load or certain resistant organisms
  • Known issues with control board reliability
  • May lack IMO D‑2 certification without additional validation
  • Performance depends on stable power supply and proper water chemistry
Decision Guide: Choose if you need a compact, low‑maintenance system and can manage regular electrode servicing; avoid if your vessel must demonstrate IMO D‑2 compliance out of the box or operates in conditions that challenge electrolysis efficacy.
Datasheet

Samsung Heavy Industries

1
Samsung Heavy Industries PureSeas BWTS
PureSeas BWTS
variable · Ballast Water Treatment · electrolysis ballast water treatment system
Type
electrolysis
IMO Approved
ja
Origin
Korea
Common Failures & Inspection Points
  • Electrode wear
  • TRO sensor failure
  • Power module malfunction
Service: Korean shipyard product. Electrode replacement schedule.
Spare Parts: Samsung Heavy Industries: UV-Lampen an Bord vorhalten (2 Sätze). Filterelemente: 1 Satz. Lead time: 2-4 Wochen.
Strengths
  • Chemical‑free operation – no storage or handling of biocides required
  • Compact unit size suitable for vessels with limited installation space
  • IMO D-2 approval confirming compliance with the Ballast Water Management Convention
  • Proven track record on new builds at Korean shipyards, facilitating factory integration
  • Relatively low consumable cost after initial installation
Weaknesses
  • Electrode wear necessitates scheduled replacement and associated downtime
  • Sensitive to water quality; TRO (Total Residual Oxidant) sensor failures have been reported
  • Higher electrical power demand compared with some UV‑based systems
  • Power module malfunctions can require specialist support from the manufacturer
  • Maintenance expertise for electrolysis components may be limited on vessels operating far from Korean yards
Typical Vessels: TankerBulk CarrierContainer ShipGeneral Cargo VesselRo‑Ro / Ferry
Certifications: IMO D-2
Decision Guide: Choose if you prefer a chemical‑free BWTS with proven IMO D-2 compliance, have reliable onboard power and can accommodate periodic electrode replacement. Avoid if your crew lacks experience with electrolysis maintenance, power availability is constrained, or you operate in regions where rapid sensor support from the Korean manufacturer is difficult.
Use Cases: Commonly installed on new builds at Samsung Heavy Industries shipyards for tankers and bulk carriers, as well as retrofitted onto existing vessels seeking a compact, chemical‑free solution that integrates with standard ballast piping. Ideal for operators prioritising environmental compliance without ongoing biocide procurement.
Datasheet