When we talk about domestic sewage on board, we are referring to the various types of wastewater that are generated in the daily life of the crew. This includes sewage from bathing, dishwashing, toilet discharge, etc. In the small ship environment, the treatment of these sewage is particularly important, which is not only related to the living environment of the crew, but also the key to marine environmental protection.
Physical treatment: The most basic way of processing. Physical methods such as screen and sedimentation are used to remove solid matter and suspended solids in sewage.
Biochemical treatments: More advanced processing methods. Microorganisms are used to decompose organic matter in sewage, similar to a land-based sewage treatment plant. This method can significantly reduce the content of harmful substances in the effluent, which is more environmentally friendly.
Chemical treatment: In some special cases, the wastewater is further purified by chemicals to meet specific discharge standards.
Membrane treatment technology: An efficient treatment method, through membrane filtration technology, can effectively remove microorganisms and viruses in sewage and ensure the quality of discharged water.
With the improvement of marine protection awareness, there are strict international regulations on ship sewage treatment. The International Convention for the Prevention of Pollution from Ships (MARPOL) specifically sets out standards for the treatment and discharge of effluents from ships. Vessels must be equipped with appropriate sewage treatment equipment and ensure that the effluent discharged meets international marine environmental standards.
Ship domestic sewage treatment is not only a guarantee for the healthy life of seafarers, but also an important part of marine environmental protection. With the development of technology and the improvement of international regulations, the future of ship wastewater treatment will be more efficient and environmentally friendly, and jointly maintain our precious marine environment.