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Collection of wastewater is done by a sewerage system. Sewerage systems can be classified into combined sewerage and separate sewerage. Combined sewerage carries both stormwater and wastewater, while separate sewerage carries stormwater or wastewater separately. (Source: eGyankosh) The three types of sewers are sanitary sewers, storm sewers, and combined sewers. Flow rate is the volume of water passing a point in a fixed period of time.
Topics include: Service Connection, Conservancy System, Water Carriage System, Dry Weather Flow, Storm Water Flow, & Rational Method.
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