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Sedimentation and clarification are physical water treatment processes that use gravity or buoyancy to remove suspended solids from water. Sedimentation is a simple, low cost pre-treatment technology to reduce settable solids and some microbes from water. It also improves the visual qualities of the water and increases its acceptance by consumers. Chemically assisted sedimentation and clarification is a water treatment process that uses a chemical agent to help settle and coagulate suspended solids in water. The most common chemical agent used is alum (aluminum sulfate).
Topics include: Types of Settling, Types of Settling Tanks, Design of Sedimentation Tank, & Chemical Clarification.
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