Suprabhat mitronnn......
write the differences between
1. 1° Sludge and 2° Sludge.
2. 1° Effluent and 2° Effluent
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Primary sludge vs Activated Sludge
It is sludge formed during primary sewage treatment. It is sludge formed during secondary sewage treatment. ... A lot of decomposition occurs during formation of primary sludge. Very little decomposition occurs during formation of activated sludge
Sewage is a type of suspension of wastes in the form of liquid or solid whereas effluent is something that flows out like rivers or lakes.
Sewage contains excreta of humans, animals, etc, whereas effluent is waste water that comes from factories or industries.
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