How does the Sewage Treatment Plant on Ship work? The first and foremost question which one asks is, What is the need of having a sewage treatment plant if the waste is biodegradable?” And, the question is definitely not wrong but the issue is that not all of the sewage constituents are biodegradable and not all are taking the same time to break down. Additionally, untreated sewage consists of solid particles that take a lot of time to crumble. It is the main cause that the sewage treatment plant is widely used. Here, you will focus on the fact of STP on Ships Explained in detail.
Water raw sewage requires oxygen for natural break down and this sewage absorbs excessive oxygen when disposed to the sea and hence, reduces the essential amount of oxygen required by the fishes as well as marine plants. Available bacteria in the sewage generate hydrogen sulfide gas that available in the sewage creates hydrogen sulfide gas that generates smells like acrid. Human waste has E.Coli bacteria that are found in the intestine. The E.Coli bacteria amount in a water sample shows that the sewage content of that sample.
There are two types of Sewage Treatment Plant on Ship
Biological Sewage Treatment Plant Chemical Sewage Treatment Plant
Chemical Sewage Treatment Plant A chemical treatment plant includes a huge storage tank that gathers, treats, and stores the sewage to discharge it to the shore or a sea receiving facility. The sewage is first gathered in a tank and the liquid content is reduced. It can be done by flushing water from the washbasins as well as bathroom drains into the sea. The liquid from any sources is chemically treated to overcome the bad smell and color and after that, it is re-used as the flushing water in the toilets. The chemicals which are utilized are used to help in the solid constituents breaking process and also in the sterilization.