The domestic sewage in large citiesA. is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plant (STPs)B. When treated in STPs does not really require the aeration step as the sewage contains adequate oxygenC. has very high amounts of suspended solids and dissolved saltsD. has a high BOD as it contains both aerobic and anaerobic bacteria.

The domestic sewage in large citiesA. is processed by aerobic and then

1.	The domestic sewage in large citiesA. is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plant (STPs)B. When treated in STPs does not really require the aeration step as the sewage contains adequate oxygenC. has very high amounts of suspended solids and dissolved saltsD. has a high BOD as it contains both aerobic and anaerobic bacteria.
Answer» Correct Answer - A In waste water treatment plant, the secondary treatment includes the biological treatment where the aerobic bacteria and anaerobic bacteria fungi are involed

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