Example of Acrylonitrile Production Wastewater Treatment Project
In this paper,the wastewater from hydrogen peroxide production by anthraquinone process is pretreated by the process of"Adjusted oil separation+Air flotation+Fenton oxidation+Blow off+Coagulation and Precipitation".The process flow,main structures and equipment design parameters are introduced,and the operation effect and cost of the project are analyzed.The operation results show that the process has the characteristics of withstand impact load,stable operation and convenient management.The process has a good removal effect on COD,petroleum and total phosphorus,and the effluent COD can be stably maintained below 1 000 mg·L-1.After treatment by the centralized sewage plant,the effluent COD of the sewage plant can be stabilized below 60 mg·L-1.
hydrogen peroxide process wastewaterpreconditioningair flotationFenton oxidationblow offcoagulation and precipitation
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