PureBallast 3.2 1500m3h
Alfa Laval Ballast Water Treatment Systems. The Alfa Laval PureBallast UV-BWMS is an automated, chemical-free ballast water management system for ships that combines filtration (50 µm) with UV treatment for biological disinfection of ballast water according to IMO and USCG regulations. The system treats ballast water during intake and discharge with specially designed quartz lamps
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Inspection of UV lamp operating hours (maintenance every 1,500 operating hours or every 12 months); measurement of UV intensity/transmittance using UV sensor; inspection for wear and contamination of quartz lamp sleeves by visual inspection (discoloration, deposits). Check after 1 month of operation, then every 3 months or as needed. UV lamp should be replaced when performance falls below 80%.
Annual inspection requirement of the 50 µm membrane filter; inspection of differential pressure (pressure transducer); visual inspection for wear, cracks or deposits; inspection of automatic backflushing functionality (backflushing with small throughput portion). Evaluate filter as wear part; replacement if pressure drop > 6 bar or wear.
Annual calibration of flow meter (Flow Meter), pressure transmitter (Pressure Transmitter) and temperature transmitter required. Comparison against external reference measuring instruments over various flow and temperature ranges to be performed. Calibration to be documented. If sensor is faulty: ballast water discharge is prohibited.
Inspection of CIP liquid pH value (target value to be documented); CIP fluid exchange required if pH value drops to 3 or monthly, whichever occurs first. Inspection of all CIP connections, valves and power cables for damage and leaks. Test of automated CIP cycle after ballast/deballast (approx. 25 min).
Visual inspection for corrosion, erosion and wear on reactor housing and all metallic components; inspection of all sealing integrity of the reactor, quartz lamp sleeves and sensors; inspection of connections and fasteners for wear and loosening; inspection for leaks or seawater ingress into the reactor.
Verification that actual flow rate is within the rated range of the configured reactor; measurement of current operating pressure (should be ≤ 6 bar nominal, optionally up to 10 bar); inspection of UV lamp current consumption against manufacturer specifications (e.g. 52 kW optimal for 1000 m³/h reactor); inspection of ballast water temperature (sensor function). Parameters should be compared with the technical data sheet of the installed configuration.
Type-general inspection and maintenance points for this equipment category — not model-specific.
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