Foul or sanitary sewers carry wastewater from
our homes into wastewater treatment plants.
Combined sewers carry both wastewater and
surface water to wastewater treatment works.
Storm sewers carry rainwater from roof and
There are three types of sewers -
roads into streams and rivers.
Answers
Answer:
There are three types of modern sewer systems: Sanitary sewers (also called foul sewers), storm sewers (also called surface water sewers), and combined sewers.
Combined sewers are well….combined! That is, they use a single pipe to carry both wastewater and storm runoff water to wastewater plants. They aren’t used much anymore because when it rains a lot the system can’t handle both the surface water and the wastewater and this causes the sewer to overflow. Because of this, new systems separate storm sewers from sanitary sewers.
Sanitary sewers carry wastewater from homes and businesses to wastewater treatment plants. They consist of pipes, manholes, and pumping stations and their role is to maintain water quality because it’s necessary for good public health.
Storm sewers (also called surface sewers) carry rainwater and melting snow (storm sewers are not designed to carry wastewater) from roofs and roads and channel it into streams, rivers, and other bodies of water.
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