过氧化钙和过硫酸钠双氧化体系去除水中三氯乙烯的研究  

Study on removal of trichloroethylene in water by calcium peroxide and sodium persulfate double oxidation system

作　　者：魏凯 王晓东[1] 张克刚 刘志武 孙先锋 WEI Kai;WANG Xiaodong;ZHANG Kegang;LIU Zhiwu;SUN Xianfeng(School of Civil Engineering and Architecture,University of Jinan,Jinan 250022,China)

机构地区：[1]济南大学土木建筑学院,济南250022

出　　处：《工业用水与废水》2025年第2期12-17,共6页Industrial Water & Wastewater

基　　金：山东省自然科学基金项目(ZR2021ME142)。

摘　　要：为考察过氧化钙(CP)和过硫酸钠(PS)双氧化体系对地下水中的三氯乙烯(TCE)的去除效果,在以柠檬酸钠螯合亚铁离子(TCD-Fe^(2+))作为催化剂的条件下,对CP-PS双氧化体系与CP单氧化体系、PS单氧化体系去除TCE效果进行对比,并分别考察了CP和PS浓度比、水质条件等因素对CP-PS双氧化体系降解TCE的影响。结果表明,当p H值为7,TCE初始浓度为0.16 mmol/L时,CP-PS双氧化体系对水中TCE的去除率明显高于单氧化体系。在CP、PS、TCD-Fe^(2+)、TCE的最佳物质的量比为6∶13∶8∶1下,反应200 min后,CP-PS双氧化体系对TCE的去除率达到99%。In order to investigate the effect of calcium peroxide(CP)and sodium persulfate(PS)double oxidation system on trichloroethylene(TCE)removal form groundwater,taking sodium citrate chelate ferrous ions(TCD-Fe^(2+))as catalyst,the effect of TCE removal by CP-PS double oxidation system,CP single oxidation system and PS single oxidation system were compared,besides,the influence of CP-PS concentration ratio,water quality and some other factors on CP-PS double oxidation system removing TCE were investigated.The results showed that,when the pH value was 7,the initial concentration of TCE was 0.16 mmol/L,the removal rate of TCE by CP-PS system was obviously higher than that by single oxidation system.Under the condition that,the optimal mass ratio of CP,PS,TCD-Fe^(2+)and TCE were 6∶13∶8∶1,the removal rate of TCE by CP-PS double oxidation system reached 99%after 200 min.

关 键 词：地下水修复 三氯乙烯 双氧化体系 过氧化钙 过硫酸钠 柠檬酸钠 亚铁离子 

分 类 号：X523[环境科学与工程—环境工程]