Question

drae design of physical process, chemical , biologicalof sewage treatment in A4 sheet figure​

Answer 1

Answer:

The following terms are the most used in biological treatment processes :-

DO: Dissolved Oxygen (mg L-1)

BOD: Biochemical Oxygen Demand (mg L-1)

BOD5: BOD (mg L-1), incubation at 15°C for 5 days

COD: Chemical Oxygen Demand (mg L-1)

CBOD: Carbonaceous BOD (mg L-1)

NBOD: Nitrogenous (mg L-1)

SOD: Sediment Oxygen Demand (mg L-1)

TBOD: Total BOD (mg L-1)

Answer 2

Answer:

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