![]() For this, sodium chloride is added to influent and after some time collected effluent is subjected to chloride content test which decides the flowing through time. Because of short circuits produced in water current, flowing through period is less than the detention period.įlowing through period can be calculated easily. Flowing through period is the time taken by a batch of water to travel from the entry to exit of settling tank. In general, detention period is in between 4 hours to 8 hours.ĭisplacement Efficiency of Sedimentation Tankĭisplacement efficiency is the ratio of flowing through period to detention period. It also depends on the quantity of suspended particles in water. So, if the volume of basin is increases, detention period also increases. It is the ratio of volume of basin to discharge rate. Some important design elements of sedimentation tank are:ĭetention period is a time taken by a water particle to travel from inlet to outlet of settling tanks. The sedimentation tank is constructed based on many factors. Sludge Removal Devices for Sedimentation Tankĭesign Elements for Construction of Sedimentation Tank.Inlet and Outlet Arrangements of Sedimentation Tank.Displacement Efficiency of Sedimentation Tank.Design Elements for Construction of Sedimentation Tank.
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