Primary Sedimentation Clarifier
Removal objectives -- settlable and floating organic and inorganic solids.
Settling phenomena -- from discrete to flocculation (see related textbook).
Critical factors -- overflowrate and detention time.
Removal efficiency -- SS 50 - 60% ; BOD5 30 - 35%.
Sludge percentage<6%, and specific gravity1.03.
Figure 3 illustrates the operation of a primary sedimentation clarifier.
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