Question

Mach column I with column II and select the correct answer from the given codes.
ColumnIColumnIIA.The stage in which of physical treatemetn of sewage is done(i)Anaerobic digestion activated sludge and prduction of biogasB.The stage in whcih biological treatment of sewage is done(ii)Activated sludgeC.Name of the sediment in primary treatment(iii)Aeration tanksD.It is carried to aeration tanks from primary(iv)Primary effluentE.Name of the sediment in secondary treatment(v)Primary sludgeF.site of flocs growth(vi)secondary treatmentG.Function of sludge digester(vii)Primary treatment

Answer 1

Answer:

can't understand the question properly......................

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Answer 2

Answer:

How to match it's not clear

Explanation:

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