Electrolysis BWTS · Ballast Water Treatment Systems
Other models of the same equipment type, De Nora first.
| Electrode/cell inspection | typically annually, per De Nora's service schedule |
|---|---|
| TRO and flow sensor calibration | typically every 6-12 months or per maker recommendation |
| Strainer/filter cleaning | typically weekly to monthly on differential-pressure indication, depending on water quality |
| Neutralization chemical replenishment (if fitted) | per consumption, checked at least monthly |
| Electrode renewal | typically every several years of active service depending on running hours and water conditions - confirm against De Nora's stated electrode life |
| Cell voltage/current draw | flag for electrode inspection once readings drift more than roughly 15-20% from the commissioning baseline at the same flow and salinity - confirm against De Nora's own trending guidance |
|---|---|
| TRO sensor response | flag for cleaning/calibration once response time or reading noticeably lags an independent handheld test |
| Strainer differential pressure | flag for cleaning once differential pressure exceeds the maker's stated threshold for this capacity |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Surveys of BWMS installations typically check the validity of the IMO Type Approval Certificate, correct entries in the Ballast Water Record Book, functional alarm tests, and that any system faults or bypasses have been logged and reported per the vessel's Ballast Water Management Plan.
Estimated lifetime: BWTS units of this type are typically designed for the vessel's operating life with periodic electrode and sensor renewal. Electrode life is commonly discussed in years of active ballasting service rather than continuous running hours - confirm actual electrode life against De Nora's service data.
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