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A high Sludge Volume Index (SVI) in an Activated Sludge Process (ASP) indicates

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Interpretation of SVI: \[ \boxed{ \begin{aligned} \text{Low SVI} &\rightarrow \text{Good settling} \text{High SVI} &\rightarrow \text{Bulking sludge / Poor settling} \end{aligned} } \]

Updated On: Jul 18, 2026

Good sludge settling
Compact floc formation
Excess oxygen transfer
Poor settling characteristics of sludge

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The Correct Option is D

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A high Sludge Volume Index (SVI) in an Activated Sludge Process (ASP) indicates

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The Correct Option is D

Solution and Explanation

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