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The domestic sewage in large cities (a) Has a high BOD as it contains both aerobic and bacteria (b) Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs). (c) When treated in STPs does not really require the creation step as the sewage contains adequate oxygen. (d) Has very high amounts of suspended solids and dissolved salts

The domestic sewage in large cities
(a) Has a high BOD as it contains both aerobic and bacteria
(b) Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs).
(c) When treated in STPs does not really require the creation step as the sewage contains adequate oxygen.
(d) Has very high amounts of suspended solids and dissolved salts

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60796 Points
2 months ago
Our expert is working on this Class VII Science answer. We will update the answer very soon.

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