Question

wht is sec.sludg......​

Answer 1

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. The microorganisms feed on the biodegradable material in the wastewater in the aeration tank then flow into a secondary clarifier where the biomass settles out and removed as secondary sludge.

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