Horizontal Flow Clarifier


The common types of horizontal flow clarifiers are rectangular and circular.

  • Rectangular: 

  • Length(L) -- 150 - 300 ft
    Width(W) -- 10 - 50 ft
    Depth(d) -- 7 - 12 ft (as shallow as possible)
    L : W -- 1:1 - 7.5 : 1
    L : d -- 4:1 - 25 : 1
  • Circular:

  • Diameter --10 - 30 ft
    Depth -- 8 - 13 ft 


Figure 5. Details of Horizontal Flow Circular Clarifier. 
(a) One 9-meter diameter primary clarifier with skimmer.
(b) Sectional view of a circular clarifier with central feed.

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If you have any suggestion, please email Professor Roy at droy@poly.edu