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(A) The correct statement is that activated sludge sediment in settlement tanks of sewage treatment plants is a rich source of aerobic bacteria.In an

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Activated sludge sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria.

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(A) The correct statement is that activated sludge sediment in settlement tanks of sewage treatment plants is a rich source of aerobic bacteria.In an activated sludge system,the primary effluent is passed into an aeration tank.Inside the aeration tank,vigorous growth of aerobic microbes (bacteria,protozoa,micro-fungi,and micro-algae) occurs,which consume a major part of the organic matter present in the sewage.Option $B$ is incorrect because biogas is produced by anaerobic bacteria.Option $C$ is incorrect because $Methanobacterium$ is an anaerobic bacterium.Option $D$ is incorrect because biogas is a mixture of gases (primarily methane,$CO_2$,and $H_2S$),not pure methane.

Select the correct statement from the following.

Similar Questions

Choose the correct sequence for $\text{STP}$ (Sewage treatment plant).

Select the appropriate option regarding the anaerobic sludge digester.

Select the correct statement from the following.

$A$ - $STP$ (Sewage Treatment Plants) purify sewage.
$R$ - In the end of $STP$,the water possesses flocs.

Why are flocs important in the biological treatment of wastewater?

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Select the correct statement from the following.

Similar Questions

Choose the correct sequence for $\text{STP}$ (Sewage treatment plant).

Select the appropriate option regarding the anaerobic sludge digester.

Select the correct statement from the following.

$A$ - $STP$ (Sewage Treatment Plants) purify sewage.$R$ - In the end of $STP$,the water possesses flocs.

Why are flocs important in the biological treatment of wastewater?

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$A$ - $STP$ (Sewage Treatment Plants) purify sewage.
$R$ - In the end of $STP$,the water possesses flocs.