What Is Sewage Water Treatment

Q.

What does a primary treatment of sewage involve?

Q. How do microbes help in the secondary treatment of sewage?

1. The anaerobic microbes kill the pathogens present in the sewage
2. The aerobic microbes breakdown the organic matter in the sewage
3. The aerobic microbes breakdown the organic matter in the sewage to produce biogas
4. The anaerobic microbes breakdown the organic matter in the sewage to produce biogas

Q.

The purpose of biological treatment of waste water is to

1. Increase BOD

2. Decrease BOD

3. Increase Sedimentation

4. Reduce Sedimentation

Q.

The last step in the wastewater treatment is a ____________ process.

1. biological

2. mechanical

3. chemical

4. physical

Q.

How do you prevent algae bloom?

Q. What processes does sewage treatment involve?

Q.

What isthe key difference between primary and secondary sewage treatment?

Q.

The stage in which sewage water is treated biologically is called

1. primary sewage treatment

2. both

3. none

4. secondary sewage treatment

Q.

Secondary sewage treatment in a sewage treatment plant is mainly a ______________ process.

1. biological

2. physical

3. mechanical

4. chemical

Q.

The stage in which sewage water is treated biologically is called

1. Secondary sewage treatment

2. Primary sewage treatment

3. both

4. none