NEET Botany Sewage Treatment MCQ Question
If a sewage treatment plant has an aeration tank that processes 5000 cubic meters of primary effluent per day, and the microbial treatment reduces the biological oxygen demand (BOD) by 95%, what is the volume of treated effluent that still meets the BOD reduction requirement?
4750 cubic meters
5000 cubic meters
250 cubic meters
5250 cubic meters
Correct Answer
Detailed Explanation
The entire volume of 5000 cubic meters undergoes treatment, and the BOD reduction does not change the volume of the effluent, only the quality. Thus, 5000 cubic meters of treated effluent meets the BOD reduction requirement.
Found an issue with this question?
Related Questions
More from Sewage Treatment
More from
What is the primary use of the spent slurry produced in a biogas plant?
If a biocontrol agent reduces the need for chemical pesticides by 60%, and a farm originally used 150 kg of pesticides per season, how much pesticide ...
If a person uses 500 grams of curd with an average microbial density of 1 billion bacteria per gram, how many total bacteria are present in the curd?