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After A/O treatment, COD does not decrease but increases instead

2015-12-03View Original

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After A/O treatment, the COD does not decrease but instead increases – what is going on? ? ? The COD level is 600 on the inlet side, but it rises to 1000 on the outlet side. Could someone with experience give some advice?
Reply #22015-12-03
The increase in the effluent ESS leads to an increase in the effluent sludge, which in turn raises the COD; microorganisms are organic matter, that is, COD.

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Translated at 2026-07-21 01:11:29

Original: https://bbs.hcbbs.com/thread-1509698-1-1.html

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