Question

Name the two different categories of microbes naturally occurring in sewage water,
Explain their role in cleaning sewage water into usable water.
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Answer 1

Explanation:

Explain their role in cleaning sewage water into usable water. Bacteria and fungi are two categories of naturally occurring microbes present in sewage. ... This leads to vigorous growth of bacteria and floc formation, the bacteria in these flocs consume of organic matter; thus decreasing the BOD of the sewage.