Zoology - Microbes in Human Welfare Question with Solution | TestHub
ZoologyMicrobes in Human WelfareSewage TreatmentEasy2 minPYQ_2020
ZoologyEasysingle choice
The supernatant left after sedimentation of sewage water during primary treatment is known as
Options:
Answer:
D
Solution:
Primary treatment is a physical process which involves filteration and sedimentation. After sedimentation the part which settles down is called as primary sludge and the water which comes above is called effluent, it contains dissolved organic substance and is transferred to secondary treatment plant.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Microbes in Human WelfareSubtopic:Sewage Treatment
⏱ 2mℹ️ Source: PYQ_2020
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