二氧化氯氧化降解含氨基硫脲废水研究  

Study on degradation of wastewater containing thiosemicarbazide by ClO_2

作　　者：谭炯[1] 冯易君[2] 谢家理[2] 

机构地区：[1]西南民族学院化学系,四川成都610041 [2]四川大学化学学院,四川成都610064

出　　处：《化学研究与应用》2002年第4期490-492,共3页Chemical Research and Application

摘　　要：Oxidation degradation of wastewater containing thiosemicarbazide by ClO 2 has been studied.The results indicate that thiosemicarbazide is degradated to the nontoxic inorganics,including SO 2- 4,N 2 and CNO -.It has been proved that the mass ratio of ClO 2 to thiosemicarbazide and pH influence the removal ratio of COD obviously,but reaction time and temperature have weak effect.When pH≤2,R=2.0 and reaction time is 15min,removal ratio of COD achieves the highest value at ordinary temperature.Removal ratio of COD of pesticide wastewater containing thiosemicarbazio is about 86.0% under such condition indicating that the degradation effect is good.Oxidation degradation of wastewater containing thiosemicarbazide by ClO 2 has been studied.The results indicate that thiosemicarbazide is degradated to the nontoxic inorganics,including SO 2- 4,N 2 and CNO -.It has been proved that the mass ratio of ClO 2 to thiosemicarbazide and pH influence the removal ratio of COD obviously,but reaction time and temperature have weak effect.When pH≤2,R=2.0 and reaction time is 15min,removal ratio of COD achieves the highest value at ordinary temperature.Removal ratio of COD of pesticide wastewater containing thiosemicarbazio is about 86.0% under such condition indicating that the degradation effect is good.

关 键 词：二氧化氯 氧化降解 氨基硫脲 农药废水 废水处理 

分 类 号：X786[环境科学与工程—环境工程] X703.1