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2. Sewage treatment - Wikipedia

   en.wikipedia.org/wiki/Sewage_treatment

   Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable to discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges. [2]

3. Marine sanitation device - Wikipedia

   en.wikipedia.org/wiki/Marine_Sanitation_Device

   A marine sanitation device (MSD) is a piece of machinery or a mechanical system that is dedicated to treat, process, and/or store raw, untreated sewage that can accumulate onboard water vessels.

4. Regulation of ship pollution in the United States - Wikipedia

   en.wikipedia.org/wiki/Regulation_of_ship...

   On some ships, especially many of those that travel in Alaskan waters, sewage is treated using Advanced Wastewater Treatment (AWT) systems that generally provide improved screening, treatment, disinfection, and sludge processing as compared with traditional Type II MSDs.

5. Marine outfall - Wikipedia

   en.wikipedia.org/wiki/Marine_outfall

   A marine outfall (or ocean outfall) is a pipeline or tunnel that discharges municipal or industrial wastewater, stormwater, combined sewer overflows (CSOs), cooling water, or brine effluents from water desalination plants to the sea. Usually they discharge under the sea's surface (submarine outfall). In the case of municipal wastewater ...

6. Oily water separator (marine) - Wikipedia

   en.wikipedia.org/wiki/Oily_water_separator_(marine)

   Oily water separator (marine) An oily water separator (OWS) (marine) is a piece of equipment specific to the shipping or marine industry. It is used to separate oil and water mixtures into their separate components. This page refers exclusively to oily water separators aboard marine vessels. They are found on board ships where they are used to ...

7. Secondary treatment - Wikipedia

   en.wikipedia.org/wiki/Secondary_treatment

   Secondary treatment is widely used in sewage treatment and is also applicable to many agricultural and industrial wastewaters. Secondary treatment systems are classified as fixed-film or suspended-growth systems, and as aerobic versus anaerobic.