Question:
A high Sludge Volume Index (SVI) in an Activated Sludge Process (ASP) indicates
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 23, 2026
- Good sludge settling
- Compact floc formation
- Excess oxygen transfer
- Poor settling characteristics of sludge
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The Correct Option is D
Solution and Explanation
Sludge Volume Index (SVI) indicates the settling characteristics of activated sludge.
A high SVI means the sludge occupies a large volume after settling, indicating bulky sludge and poor settling properties.
Hence,
\[
\boxed{\text{Poor settling characteristics of sludge}}
\]
is the correct answer.
Therefore,
\[
\boxed{(D)}
\]
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