Question

What is primary sludge? Give one use of it.​

Answer 1

$\huge\boxed{\fcolorbox{black}{Pink}{Answer}}$Primary sludge is a result of the capture of suspended solids and organics in the primary treatment process through gravitational sedimentation, typically by a primary clarifier. The secondary treatment process uses microorganisms to consume the organic matter in the wastewater..........

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Answer 2

Answer:

SLUDGE IS THE BIG PIPE IN WHICH THE DIRTY WATER OF SMALL NARROW PIPES COMES AND GETS STORED AND CLEANED AND RELEASED IN WATER BODIES FOR REUSE