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《Chemical Industry and Engineering Progress》 2007-03
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Treatment of degradation-resistant pesticide wastewater with high salinity by wet air oxidation

ZHANG Hongyan,LU Xuemei,LIU Zhiying,XU Yanhua(College of Urban Construction and Safety & Environmental Engineering,Nanjing University of Technology,Nanjing 210009,Jiangsu,China)  
The influence factors of chemical oxygen demand(COD) and removal effect of chroma during the wet air oxidation of degradation-resistant pesticide wastewater with high salinity were investigated.The results indicated that the reaction was influenced by reaction temperature,partial pressure of oxygen,reaction time and the acidity of the reaction system.98.0% removal rate of COD and over 99.0% removal rate of chroma were achieved under the following reaction conditions :temperature 280℃,partial pressure of oxygen 4.2MPa,initial pH value of the system 2.0 and reaction time 150min.The research will be useful for the treatment of degradation-resistant pesticide wastewater with high salinity.
【Fund】: 江苏省社会发展资助项目(BS2005653)
【CateGory Index】: X786
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