UV/Fenton处理头孢美唑酸废水的响应曲面优化研究  

Optimization Study of Response Surface Methodology for Treating Cefmetazole Acid Wastewater by UV/Fenton Combination Process

作　　者：高爱舫[1,2] 李爱国[1] 焦珍[1] 朱振亚[1] 张莹[1] 

机构地区：[1]石家庄经济学院水资源与环境学院,河北石家庄050031 [2]河北省水资源可持续利用与开发重点实验室,河北石家庄050031

出　　处：《环境科学与技术》2015年第2期158-161,共4页Environmental Science & Technology

基　　金：河北省高等学校科学技术研究优秀青年基金项目(Y2011110);河北省首次青年拔尖人才计划;河北省教育厅重点项目(ZD20131034)

摘　　要：采用UV/Fenton联合技术处理头孢美唑酸生产废水,基于Box-Behnken响应曲面法,研究初始p H值、H2O2/Fe2+摩尔比及紫外光照射时间各自变量的单独作用及交互作用对废水COD去除率的影响,并通过对回归方程求解和响应面分析,建立数学预测模型。结果表明,p H值、H2O2/Fe2+摩尔比、紫外光照射时间及p H值与紫外光照射时间的交互作用对COD去除率存在显著影响。得到联合处理的最佳工艺参数:紫外光照射时间90.00 min,p H值3.94,H2O2/Fe2+摩尔比3.94。在此条件下,预测废水的COD去除率为88.74%。进行验证试验,实际值与模型预测值具有良好一致性,偏差为0.10%。Response surface methodology was employed to investigate the effects of the independent variables and their interactions on the removal rate of COD of cefmetazole acid wastewater by UV/Fenton combination process. Initial pH value, mole ratio of H2O2 to Fe^2＋, and UV irradiation time were selected as independent variables, and the removal rate of COD of wastewater as the response value. A predictive polynomial quadratic equation model was developed by solving the quadratic equation as well as analyzing the response surface plots and their corresponding contour plots. Response surface analysis results showed that the selected factors and the combined effect of pH value and UV irradiation time had significant correlation with the removal rate of COD of wastewater. Under the optimal reaction conditions, the highest COD removal rate was 88.74.0%.The optimum conditions of UV/Fenton process were determined to be pH value 3.94, mole ratio of H2O2 to Fe^2＋ 3.94, and UV irradiation time 90.00 minutes. The experimental.values agreed with the predicted values of the model equation with 0.10% deviation.

关 键 词：头孢美唑酸废水 UV/Fenton联合处理 响应曲面法 

分 类 号：X703[环境科学与工程—环境工程]