响应面方法优化Fenton试剂处理甲萘酚废水  

Optimization of 1-naphthol wastewater treatment by Fenton reagent using response surface methodology

作　　者：王利平[1] 李祥梅[1] 沈肖龙[1] 杜尔登[1] 

机构地区：[1]常州大学环境与安全工程学院,常州213164

出　　处：《环境工程学报》2015年第4期1797-1802,共6页Chinese Journal of Environmental Engineering

基　　金：常州市社会发展科技计划项目(CS20090008);常州科教城科研基金资助项目(K2012307)

摘　　要：利用响应面方法(RSM)对Fenton试剂处理甲萘酚废水工艺过程进行优化,考察了Fe2+浓度、H2O2浓度和初始p H 3种工艺条件对甲萘酚废水处理效果的影响,并提出Fenton试剂降解甲萘酚废水的数学模型及优化后的工艺参数。Fenton试剂降解甲萘酚废水的数学模型可以较好地模拟真实的曲面,方程的F值为24.90,相关系数(R2)为0.9573,调整相关系数(R2adj)为0.9188。通过优化得到最佳的工艺参数Fe2+浓度为0.89 g/L,H2O2浓度为0.79 g/L,p H为4.00。在此条件下,COD去除率的预测值为91.15%,与实测值90.78%接近。说明建立的模型能真实地反映各主要因素的影响,模型与实际情况吻合。In order to optimize the treatment of the 1-naphthol wastewater by Fenton reagent,response surface methodology( RSM) was employed to investigate the effects of independent variables and their interactions on COD removal efficiency of 1-naphthol wastewater. The Fe2 +concentration,H2O2 concentration and initial p H were selected as independent variables to study the effects of treatment of the 1-naphthol wastewater. Furthermore,the mathematical model of degradation of 1-naphthol wastewater by Fenton reagent was proposed and the optimized process parameters were obtained. The RSM results show that the mathematical model of degradation of1-naphthol wastewater by Fenton reagent well agrees with the real surfaces. The equation F-value is 24. 9. The correlation coefficient( R2) is 0. 9573 and the adjusted correlation coefficient( R2adj) is 0. 9188. The optimum process parameters of Fenton reagent oxidation were determined to be 0. 89 g / L Fe2 +,0. 79 g /L H2O2 and p H4. 00. Under the optimum conditions,the predicted COD removal efficiency is 91. 15%,which is very close to the actual value of 90. 78%. It illustrates that the model established can truly reflect the impact of major factors,and the model is consistent with the actual situation.

关 键 词：甲萘酚废水 FENTON试剂 响应面方法 工艺优化 

分 类 号：X783[环境科学与工程—环境工程]