1.

Following is the sewage treatment. In which of the following options, correct word for all the four numbers (1, 2, 3 and 4) are indicated.

A. 1 - Large aeration tanks; 2 - Chemical agitation; 3 - High; 4 - Anaerobic
B. 1 - Large aeration tanks; 2 - Mechanical agitation; 3 - Low; 4 - Anaerobic
C. 1 - Large aeration tanks; 2 - Chemical agitation; 3 - Low; 4 - Aerobic
D. 1 - Large aeration tanks; 2 - Mechanical agitation; 3 - High; 4 - Anaerobic
Answer» C. 1 - Large aeration tanks; 2 - Chemical agitation; 3 - Low; 4 - Aerobic


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