Abstract
Aiming at the problem of lower biodegradability and higher chromaticity of two stage biochemical treatment of petrochemical industries wasterwater treatment plant, O3-BAC is used to treat the water outlet of sewage treatment plant and the CODCr, and Ammonia-nitrogen and sewage chroma are analyzed as well. The results show that the treatment efficiency could be achieved through O3-BAC method, that is, the CODCr is 26.7mg/L, the Ammonia-nitrogen is 0.18mg/L and the sewage chroma is 5 times.
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