Treatment of high-concentration cyanide-containing pesticide wastewater with a combined process of complexation precipitation and chemical oxidation
应用络合沉淀-化学氧化组合工艺处理高浓度含氰农药废水

It is very difficult to treat high-concentration cyanide-containing pesticide wastewater because of its toxic and refractory nature.An efficient combined process,i.e.,complexation precipitation followed by H2O2 oxidation and ClO2 extensive oxidation,was developed in the present study through lab-scale tests to treat the cyanide-containing pesticide wastewater.The experimental results show that the removal rates of CN-and COD were above 99.99% and 99%,respectively.The results of the experiments show that the...