响应曲面法优化Fenton氧化处理印染废水的研究  

Response Surface Methodology Optimization of Fenton Oxidation Treatment on Printing and Dyeing Wastewater

作　　者：郜玉楠[1] 郭晓莹 张伦秋[3] 肖月鹏 GAO Yu′nan;GUO Xiaoying;ZNHANG Lunqiu;XIAO Yuepeng(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang,China,110168;Guangzhou Jingsui Survey&Design Co.Ltd.,Guangzhou,China,510700;School of Civil Engineering,Liaoning Shihua University,Fushun,China,113001)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168 [2]广州京穗勘察设计有限公司,广东广州510700 [3]辽宁石油化工大学土木工程学院,辽宁抚顺113001

出　　处：《沈阳建筑大学学报（自然科学版）》2022年第6期1145-1152,共8页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家重点研发计划项目(2018YFD1100500-03-03)。

摘　　要：目的 研究Fenton氧化法在处理印染废水过程中各影响因素对COD去除率的影响,并对Fenton氧化条件进行优化。方法 针对沈阳市某印染厂废水污染现状,利用响应曲面设计试验方法(RSM),选择H_(2)O_(2)质量浓度、FeSO_(4)·7H_(2)O质量浓度、反应时间作为试验因子,建立三因素三水平响应曲面回归模型,将COD去除率作为响应值进行曲面分析。结果 3个影响因子对COD去除率均具有显著影响(P<0.000 1),所得回归方程R^(2)值为0.992 3,信噪比为33.217,拟合结果高度显著,可以在设计范围内对响应值进行预测;模型预测最佳试验条件:H_(2)O_(2)质量浓度为305 mg/L,FeSO_(4)·7H_(2)O质量浓度为480 mg/L,反应时间为60 min;原水COD质量浓度为1 400 mg/L,采用Fenton氧化处理后COD去除率达95.71%。结论 H_(2)O_(2)质量浓度与FeSO_(4)·7H_(2)O质量浓度两因素对COD去除率影响较为明显,响应曲面试验模型可以较好地预测Fenton氧化法最佳反应条件与COD去除率。The influence of various factors on COD removal rate in the process of Fenton oxidation treatment of printing and dyeing wastewater were studied, and the Fenton oxidation conditions were optimized.In response to the status quo of wastewater pollution in a printing and dyeing factory in Shenyang, the dosage of H_(2)O_(2),the dosage of FeSO_(4)·7 H_(2)O,and the reaction time was selected as the test factors in the response surface design test method(RSM).A 3 factor 3 level response surface regression model was established, the COD removal rate as the response value.3 impact factors had a significant effect on the COD removal rate(P<0.000 1).The R^(2) value was 0.992 3,and the sufficient precision value is 33.217,indicating that the model is highly significant and the response value can be predicted within the design range.The best test conditions predicted by the model were as follows: H_(2)O_(2)mass concentration 305 mg·L^(-1),FeSO_(4)·7 H_(2)O mass concentration 480 mg·L^(-1),and reaction time 60 min.The COD removal rate reached 95.71% by Fenton oxidation treatment of the raw water′s COD mass concentration 1 400 mg·L^(-1).Mass concentration of H_(2)O_(2)and FeSO_(4)·7 H_(2)O have a clear influence on COD removal rate.The optimal reaction conditions and COD removal rate of Fenton oxidation can be predicted by the response surface test model.

关 键 词：FENTON氧化 响应曲面法 印染废水 COD 

分 类 号：TU992.3[建筑科学—市政工程] X703[环境科学与工程—环境工程]