摘要
采用浸渍法制备负载铁锰氧化物的活性炭催化剂,并用其催化臭氧氧化处理邻苯二甲酸二甲酯(DMP)废水。利用响应面法(RSM)对催化臭氧氧化处理的工艺参数进行优化,以DMP废水的COD去除率为响应值,初始pH、催化剂投加量和臭氧通量的水平编码为自变量,建立了COD去除率与3个自变量的二次多项式回归方程。结果表明,二次多项式回归方程的F为15.660,P<0.000 1,相关系数R2为0.933 7,说明该模型可以较好地模拟催化臭氧氧化处理DMP废水的效果。优化得到最佳的工艺参数为臭氧通量5.0L/min、催化剂投加量25.0g、初始pH=4.8,在此条件下处理60min后,DMP废水的COD去除率平均值为82.1%,与预测值84.3%接近。
Catalyst with Fe-Mn oxide loaded on activated carbon was prepared for treating dimethyl phthalate （DMP） wastewater by catalytic ozonation method. Response surface methodology was employed to optimize the treatment process. The effects of initial pH, catalyst dosing quantity and ozone flux on COD removal were investigated. Simultaneously,the mathematical model and optimized parameters of process were also achieved. The results showed that the mathematical model could greatly response the practical process with the equation F of 15.660, P^0.000 1 and correlation coefficient R2 of 0.933 7. The optimum process parameters of DMP organic wastewater treatment were ozone flux of 5.0 L/min,catalyst dosing quantity of 25.0 g,initial pH of 4.8. Under the optimum conditions,the actual COD removal rate was 82.1% ,which closed to the predicted value of 84.3%,
出处
《环境污染与防治》
CAS
CSCD
北大核心
2017年第10期1092-1096,共5页
Environmental Pollution & Control
基金
国家自然科学基金资助项目(No.21477050)
常州国际科技合作计划项目(No.CZ20140017)
