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so that they can put the cleaned water back into the stream
its called a water sewage treatment plant.
bacteria and dirty toilet paper the bacteria gets filtered and cleaned to make sure there is no harmful bacteria in the water and the toilet paper dissolves on its way to the sewage water treatment facility
Faeces is filtered from the sewage water and the water is cleaned and passed back through the domestic water cycle. The solid waste is disposed of in a form of land fill
Because the sewers have a cleaning system like when rocks clean the water
The First Step of seperating sewage is called Screening! Screening: the water flows through a grate to remove large solid objects from the water. The debris that gets caught on the grate is cleaned off at regular intervals.
The activated sludge process is commonly used to treat sewage. In this process, microorganisms are added to break down organic matter in the sewage, forming a sludge that settles out, leaving cleaner water behind. The cleaned water is then further treated before being discharged.
the sewers take sewage and surface water runoff (from the roads etc) to a sewage treatment plant. Here it is treated and cleaned then discharged back in to a river or stream. From that river a water treatment works then abstracts (removes) water, treats it drinking water standard and it is pumped through the water pipes to your tap.
A drainage system for carrying surface water and sewage for disposal.
It has to be dealt with in manner that will not cause harm to other animals or persons. Human waste generically is passed through sewage and then removed and the water cleaned.
there are 3 diffrent kinds of waste generate by humans. they are- liquid wastes solid wastes and gaseous waste.