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Module: Sedimentation

The purposes of the sedimentation process are to remove suspended solids, or particles, which are denser, or heavier, than water and reduce the load on the filters. The suspended solids may be their natural state, such as bacteria, clays or silts, modified or preconditioned by prior treatment in the coagulation-flocculation process to form floc, or precipitated impurities, such as hardness and iron precipitates formed by the addition of chemicals.

This module takes 30 minutes to complete. At the end of this module, you must obtain an 80% or higher on the Test Your Knowledge for it to be marked as complete. You have unlimited attempts and the highest attempt is recorded.