氯离子对多聚磷酸盐-电芬顿处理亚甲基蓝废水的影响  

Effect of Cl^(-)on treatment of methylene blue wastewater by polyphosphate-assisted electro-Fenton process

作　　者：崔玉 段任静 杨宇航 丁鑫末 黄开伟 戴捷[1] CUI Yu;DUAN Renjing;YANG Yuhang;DING Xinmo;HUANG Kaiwei;DAI Jie(College of Chemistry and Environment Engineering,Yangtze University,Jingzhou 434023,China;Jihechang New Materials(Jingmen)Co.Ltd.,Jingmen 448000,China)

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023 [2]吉和昌新材料(荆门)有限公司,湖北荆门448000

出　　处：《化工环保》2023年第2期174-179,共6页Environmental Protection of Chemical Industry

基　　金：国家自然科学基金项目(2117326);湖北省自然科学基金重点项目(2013CFA107);荆州市科技项目(2019EC61-14)。

摘　　要：以Ti/TiO_(2)电极板为阳极、海绵状多孔金属泡沫镍为阴极、三聚磷酸盐(TPP)为电解质构建TPP-电芬顿体系,考察Cl^(-)对该体系处理模拟亚甲基蓝(MB)废水效果的影响。采用响应面法建立曲面模型,探究TPP-电芬顿体系处理MB废水的最优运行参数及参数间的交互作用。结果表明:在初始溶液pH为6、TPP与Fe^(2+)摩尔比为10∶3、电流为200 mA的条件下,当Cl^(-)质量浓度为1500 mg/L时,Cl^(-)对MB降解具有协同作用,MB降解率为98.57%;影响因子显著性顺序为Cl^(-)质量浓度>电流>初始溶液pH,三者间存在一定的交互作用;模型优化后得到初始溶液pH为6.44、Cl^(-)质量浓度为1532.92 mg/L、电流为214.35 mA的工艺条件下,MB降解率为96.46%,与实验值仅相差2.18个百分点。Using Ti/TiO_(2)electrode plate as anode,spongy porous metallic nickel foam(NF)as cathode and tripolyphosphate(TPP)as electrolyte,the TPP-Electro-Fenton system was constructed,and the effect of Cl^(-)on treatment of simulated methylene blue(MB)wastewater by this system was investigated.A continuous variable surface model was established by the response surface methodology(RSM)to explore the optimal operation parameters and the interaction between the parameters of TPP-electric Fenton system for MB wastewater treatment.The results show that:Under the conditions of initial solution pH 6,molar ratio of TPP to Fe^(2+)10∶3,current 200 mA,and Cl^(-)mass concentration 1500 mg/L,Cl^(-)has synergistic effect on MB degradation,and the degradation rate of MB is 98.57%;The order of significance of influencing factors is Cl^(-)mass concentration>current>initial solution pH,and a interaction is among the three;Under the model-optimized process conditions of initial solution pH 6.44,Cl^(-)mass concentration 1532.92 mg/L and current 214.35 mA,the degradation rate of MB is 96.46%,and the difference from the experimental value is only 2.18%.

关 键 词：氯离子 三聚磷酸盐(TPP) 电芬顿 亚甲基蓝 响应面法 

分 类 号：X791[环境科学与工程—环境工程]