Question

a) How are microbes used in sewage management?
b) How is the sludge produced in this process utilized?​

Answer 1

Answer

a)Waste removed during the process is digested by microbes, and what remains is dried and disposed of in landfills, incinerators or applied to soil as a conditioner, depending on the source and process. Large-scale operations manage the bulk of our wastewater and follow a process called activated sludge.

b)Primary sludge is generated from chemical precipitation, sedimentation, and other primary processes, whereas secondary sludge is the activated waste biomass resulting from biological treatments. Some sewage plants also receive septage or septic tank solids from household on-site wastewater treatment systems.

Explanation:

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