Moderate
In sewage treatment, the detention period allowed for oxidation ponds ranges from _____________ weeks?
Correct answer: B. 4 to 5
- A. 1 to 2
- B. 4 to 5
- C. 9 to 10
- D. 15 to 20
Explanation
Oxidation ponds require a relatively long detention period, commonly about 4 to 5 weeks, so microorganisms have enough time to reduce the organic load. The shorter 1 to 2 week period is generally insufficient for complete treatment.
Written and checked by Zahid Hussain, MS Computer ScienceLast updated
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.