STP & OWS
OWS 1
An oily water separator that treats bilge water before discharge, meeting the parts-per-million limit MARPOL Annex I sets.
STP & OWS
Sewage Treatment Plant
Onboard equipment that treats a vessel's sewage before discharge, to the standard required by MARPOL Annex IV.
Overview
A marine sewage treatment plant processes a vessel's black and grey water on board, breaking down and disinfecting waste before it is discharged, so a vessel is not required to hold sewage for shore disposal alone. What a discharge is required to meet, treatment standard, monitoring, or simply holding for shore reception, depends on where the vessel operates and under which MARPOL Annex IV provisions it is certified, a class and flag-state matter decided per vessel. Most designs use a biological or aeration stage to break down waste before a final disinfection step, and the unit is sized to the number of persons on board it is certified to serve.
Specifications on request
Full specifications, material grades and dimensions are confirmed per enquiry. Tell us the vessel and the duty, and we will send the datasheet.
View datasheet—
Related equipment
Other equipment filed under the same part of the catalogue.