Question:

Sloughing in trickling filters usually results in

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Sloughing in trickling filters: \[ \boxed{ \text{Biofilm detaches} \rightarrow \text{Higher suspended solids in effluent} } \] Secondary clarifiers are provided to remove this detached biomass.
Updated On: Jul 23, 2026
  • Reduced suspended solids in effluent
  • Increased suspended solids load to the secondary clarifier
  • Improved BOD removal
  • Reduced hydraulic loading
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The Correct Option is B

Solution and Explanation

Sloughing is the detachment of excess biological film (biofilm) from the surface of the trickling filter media. The detached biomass is carried with the effluent, thereby increasing the suspended solids entering the secondary clarifier. Hence, \[ \boxed{\text{Increased suspended solids load to the secondary clarifier}} \] is the correct answer. Therefore, \[ \boxed{(B)} \]
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