Biology miscellaneousHard
Question
Secondary seqwage treatement is mainly a
Options
A.machenical process
B.chemical process
C.biogical process
D.physical process
Solution
In secondry and biological tratement of municipal waste rich in sewage, the organic matteris decomposed with the help of microbes. Decomposition of organic matter occurs by oneof the three method - water hyacinth pod, tracking filter method and activated sludgemethod. After decomposition the trated water is sterilized through chlorination.
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