Microbes in Sewage Treatment

Flocs produced in the secondary treatment plant of the sewage comprises of:

Assertion: Constant agitation of primary effluent in large aeration tanks promotes vigorous growth of useful anaerobic bacteria.

Reason: The microbes consume the major part of the organic matter and reduces the BOD of the primary effluent.

The correct option among the following is:

The sewage that is added to water is mainly

The purpose of biological treatment of waste water is to $\underline{ }$

Assertion $\left(\mathrm{A}\right)$: Bioremediation is the use of microbes to remove toxic substances
Reason $\left(\mathrm{R}\right)$: Certain microbes are present naturally in the sewage which help in sewage treatment.

What is true about the third step or tertiary treatment of industrial and municipal wastewater?

In an aeration tank, the _____ bacteria oxidise and digest the organic waste to form sludge with the release of _____ gas.

Match the following

The correct answer is-

Match the following:

The correct answer is-

The bacterium that is commonly found in the anaerobic sludge during sewage treatment is called

The Government of India has taken several initiatives for the restoration of the river. Which of the action plan is accomplished with Japan?

Wastewater treatment generates a large quantity of sludge, which can be treated by

The sewage treatment process adapted by the people of Arcata, California includes

When activated sludge is passed into anaerobic sludge digester, the anaerobic bacteria act on the sludge and produce

Treated sewage water has:

Microbial digestion of organic wastes of sewage is called

Masses of bacteria associated with fungal filaments which form mesh-like structures is called

What is true about primary treatment?

Large quantity of waste water generated every day in cities and towns is called

In the sewage treatment process, a mixture of gases CH₄, CO₂ and H₂S are produced during the digestion of/by