Advertisements
Advertisements
Question
What would happen if a large volume of untreated sewage is discharged into a river?
Advertisements
Solution
It untreated sewage is discharged directly into rivers it will lead to serious pollution of the waters with organic matter and pathogenic bacteria, Protozoa and many other diseases. This water, if used will cause outbreaks of water-borne diseases.
APPEARS IN
RELATED QUESTIONS
Explain the function of “anaerobic sludge digester” in a sewage treatment plant.
Distinguish between the roles of flocs and anaerobic sludge digesters in sewage treatments.
What is sewage?
What is the key difference between primary and secondary sewage treatment?
Which of the following is TRUE about primary treatment?
Identify the INCORRECT statement with respect to sewage treatment.
______ refers to the organic matter which settles down after physical treatment of sewage.
Study the following statements regarding tertiary treatment of sewage and choose the correct option.
i. It produces methane gas.
ii. The effluents formed from these plants undergo chlorination.
iii. BOD is significantly increased at this step.
iv. It includes screening and passage of effluent through grit chamber.
After which of the following treatment BOD of the effluent is significantly reduced?
In the process of sewage treatment, the activated sludge is digested by ______
Which of the following is put into Anaerobic sludge disaster for further sewage treatment?
The primary treatment of waste water involves the removal of ______.
What would happen if oxygen availability to activated sludge flocs is reduced?
Activated sludge should have the ability to settle quickly so that it can ______.
Why do we prefer to call secondary waste water treatment as biological treatment?
What is the group of bacteria found in both the rumen of cattle and shidge of sewage treatment?
Why are flocs important in biological treatment of waste water?
Which one is wrongly matched?
The aeration tank of a sewage treatment plant is not functioning properly. Explain in detail the impact of this on the treatment of sewage and BOD of the effluent.
Removal of suspended, floating, coarse and solid particles in sewage treatment is called ______.
