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MediumNEET TEST
+4 / -1
With respect to treatment of sewage water, arrange the following steps in correct sequence. A. Effluent from the primary settling tank is taken for secondary treatment. B. Production of biogas. C. Using activated sludge as inoculum in aeration tank. D. Removal of soil and pebbles. E. Release of treated water into natural water bodies. Choose the correct option.
A
B → E → D → C → A
B
D → A → C → B → E
C
B → D → C → A → E
D
E → B → D → A → C

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