响应曲面法优化电絮凝去除微污染水中UV254的研究  

Optimization of Electrocoagulation Process to Eliminate UV_(254) in Micro-Polluted Surface Water Using Response Surface Method

作　　者：周振[1] 姚吉伦[1] 庞治邦 刘波[1] 

机构地区：[1]后勤工程学院,国家救灾应急装备工程技术研究中心,重庆401311

出　　处：《水处理技术》2016年第3期32-36,42,共6页Technology of Water Treatment

基　　金：国家科技支撑计划(2012BAK05B00)

摘　　要：为提高铝基电絮凝净化微污染水的效果,实验采用响应曲面法(RSM)优化反应条件。采用单因素法筛选影响电絮凝去除UV_(254)的主效因子,并借助响应曲面法建立了以UV_(254)的去除率为响应值的二次回归模型,确定了电絮凝优化反应条件,即电流密度为1.59 m A/cm^2、原水p H为7.5、运行时间为45 min,此时UV_(254)的去除率达到最大值89.94%。通过验证实验得到的实际值和模型计算值相吻合,说明该回归模型准确可靠。To treat micro-polluted surface water by EC process using aluminum-based electrodes more valid, response surface method（RSM） was employed to optimize the process parameters. Firstly, the main factor that affected the UV_（254） removal efficiency in electrocoagulation process was determined based on the single factor experimental analysis. Then, a quadratic regression model with response value of UV_（254） removal was generated on the strength of RSM. The refined EC operating conditions were a current density of 1.59 m A/cm^2, an initial p H of 7.5 and an operation time of 45 min, which maximized the UV_（254） removal efficiency of 89.94%. Finally, the results of verification test corresponded with the calculated values, which indicated that the regression model was accurate and reliable.

关 键 词：电絮凝 响应曲面法 紫外吸光度 回归模型 

分 类 号：X703.1[环境科学与工程—环境工程]