铁碳微电解/H_2O_2耦合类Fenton法预处理高浓度焦化废水  

Pretreatment of high concentration coking wastewater by Fe-C micro-electrolysis combined with H_2O_2

作　　者：殷旭东[1] 李德豪[1] 毛玉凤[1] 朱越平[1] 刘正辉[1] 

机构地区：[1]广东石油化工学院环境与生物工程学院,茂名525000

出　　处：《环境工程学报》2016年第1期212-216,共5页Chinese Journal of Environmental Engineering

基　　金：广东省普通高校青年创新人才项目(650473)

摘　　要：采用铁碳微电解/H_2O_2耦合类Fenton法预处理高浓度焦化废水,通过正交和单因素实验研究了废水初始pH、不同质量的微电解填料、H_2O_2投加量及反应时间对COD处理效果的影响,同时研究了COD降解动力学。结果表明:最佳控制条件是废水初始pH为3、铁碳填料投加量为300 g/L、H_2O_2投加量为80 m L/L、反应时间为160 min,此时COD的去除率达到87%以上;H_2O_2的加入可使铁碳微电解/H_2O_2系统COD的去除率提高37.34%,铁碳微电解/H_2O_2系统COD反应动力学方程为y=0.5296x-0.6218,相关系数R^2为0.9917。Fe-C micro-electrolysis combined with H2O2 process was applied to oxidize high concentration coking wastewater. An experimental design based on the orthogonal experiments and single factor experiments was applied to determine the optimal reaction conditions. The effects of operating conditions such as initial pH,different quality of micro electrolysis filler,hydrogen peroxide concentration and reaction time on treatment effect were investigated,and the dynamics of the reaction process was discussed. The results showed that when pH value was 3,iron carbon filler quantity was 300 g / L,H2O2 dosage was 80 ml / L,the reaction was 120 min,the degradation rate of COD was more than 87%. The addition of H2O2 can make the COD removal rate of iron carbon micro electrolysis / H2O2 system increased by 37. 34%,COD removal followed the first-order kinetic reaction equation y =0. 5296x- 0. 6218,and the correlation coefficient R^2 was 0. 9917.

关 键 词：类芬顿 内电解 焦化废水 降解动力学 COD 

分 类 号：X703[环境科学与工程—环境工程]