Question:
Protozoa in activated sludge primarily contribute to
Protozoa in activated sludge primarily contribute to
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Role of protozoa in activated sludge:
\[
\boxed{
\begin{aligned}
&\text{Feed on free bacteria}\\
&\text{Improve effluent quality}\\
&\text{Promote floc formation}
\end{aligned}
}
\]
Updated On: Jul 23, 2026
- Methane formation
- Nitrogen fixation
- Predation of dispersed bacteria and floc formation
- Sulphur oxidation
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The Correct Option is C
Solution and Explanation
Protozoa consume dispersed bacteria in activated sludge, thereby clarifying the treated effluent and promoting stable floc formation.
Hence,
\[
\boxed{\text{Predation of dispersed bacteria and floc formation}}
\]
is the correct answer.
Therefore,
\[
\boxed{(C)}
\]
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