![The BOD removal in an oxidation pond may be up to](https://www.gkseries.com/blog/wp-content/uploads/2022/09/The-BOD-removal-in-an-oxidation-pond-may-be-up-to.png)
Q. The BOD removal in an oxidation pond may be up to
- 100%
- 97%
- 94%
- 90%
Answer: 90%
Answer: 90%
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