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Treatment process of 1000m3/d aquatic product processing wastewater

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DOI: 10.38007/Proceedings.0001657


Ying Chen, Xufeng Tao, Xiuli Chen, Tianyu Lin

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Ying Chen


In this paper, according to the characteristics of high COD, high ammonia nitrogen and high total phosphorus of aquatic processing wastewater, "air flotation +A/A/O" is adopted to carry out process design and engineering practice for the wastewater of an aquatic processing enterprise. Coagulation air flotation pretreatment can reduce SS, COD and total phosphorus, and A/A/O combined process can effectively remove COD and ammonia nitrogen. After the completion of the project, the operation is stable and the treated effluent meets the three-level standard of the integrated wastewater discharge standard (GB8978-1996).


wastewater from aquatic products processing; engineering design; air flotation; A/A/O