过硫酸铵氧化修复有机污染土壤及电化学再生性能研究  

Study on Ammonium Persulfate Oxidation Remediation of Organic Contaminated Soil and Electrochemical Regeneration Performance

作　　者：崔慧姝 徐利敏 潘文娇 陈春燕 王兴龙 李英杰[1] Cui Huishu;Xu Limin;Pan Wenjiao;Chen Chunyan;Wang Xinglong;Li Yingjie(Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Yunnan,650500;Jiaozuo Technician College,He'nan,454150;Ecological Environment Monitoring Station of Anning Branch,Kunming Ecological Environmente Bureau,Yunnan,650300;Yunnan Provincial Department of Ecological Environment in Kunming City Ecological Environment Monitoring Station,Yunnan,650228)

机构地区：[1]昆明理工大学环境科学与工程学院,云南650500 [2]焦作技师学院,河南454150 [3]昆明市生态环境局安宁分局生态环境监测站,云南650300 [4]云南省生态环境厅驻昆明市生态环境监测站,云南650228

出　　处：《当代化工研究》2022年第18期77-79,共3页Modern Chemical Research

基　　金：国家级大学生创新创业计划训练项目“有机污染土壤淋洗耦合热脱附技术研究”(项目编号:20211067400160)。

摘　　要：通过对过硫酸铵活化降解苯酚和萘及电化学氧化生成过硫酸铵过程的研究,分析主要起作用的自由基种类,并探究了循环体系的可行性。结果表明在Fe~0活化电化学氧化液降解有机污染物体系中,硫酸根自由基和羟基自由基共同起作用导致有机污染物的降解,酸性和中性条件下起主要作用的自由基是SO~-·。但当pH升高时,羟基自由基作用变大。系统降解有机污染物后废液可通过电化学氧化过程继续运行,电化学氧化循环过程会进一步处理未降解完全的有机污染物,对整个体系有益。Through the study of the activation and degradation of phenol and naphthalene by ammonium persulfate and the electrochemical oxidation of ammonium persulfate,analyzes the types of free radicals that play a major role in the degradation process,and explores the feasibility of the recycling system.The results show that in the Feactivated electrochemical oxidation solution degrading organic pollutants system,sulfate radicals and hydroxyl free radicals work together to cause the degradation of organic pollutants.The free radical that plays a major role under acidic and neutral conditions is SO·.But when the pH increases,the role of hydroxyl radicals becomes greater.After the system degrades organic pollutants,the waste liquid can continue to run through the electrochemical oxidation process,and the electrochemical oxidation cycle process will further process the organic pollutants that are not completely degraded,which is beneficial to the whole system.

关 键 词：过硫酸铵 苯酚 萘 循环体系 电化学氧化 有机污染物 

分 类 号：X53[环境科学与工程—环境工程]