环境工程学报2024，Vol.18Issue(12)：3467-3474,8.DOI:10.12030/j.cjee.202402060
给水管网颗粒物对消毒副产物的芬顿催化去除机制
Removal of DBPs by particles from drinking water distribution system through in-situ Fenton reaction
摘要
Abstract
Iron particles in drinking water distribution systems are usually regarded as pollutants that causes turbidity and color problem.This study used iron particles as a catalyst to"treat waste with waste"for in-situ removal of disinfection by-products(DBPs)in"yellow water".The results showed that the removal rates of trihalomethane and haloacetonitrile by in situ catalysis of iron particles were 51.8％and 47.6％,respectively,while the removal effect of haloacetic acid was not significant.Based on the three DBPs mentioned above,the cytotoxicity was reduced by 81.07％and the genetic toxicity was reduced by 30.46％.The two main types of crystals in the iron particles were magnetite and goethite,which are 25％and 23％,respectively,and they were key catalytic sites.The iron particles would release humic acid organic compounds into the water,hindering particle aggregation and helping to enhance catalytic activity sites.Hence,the results revealed that in-situ Fenton reaction of iron particles in the drinking water distribution systems can effectively degrade DBPs and reduce toxicity risks,providing a new approach for the in-situ Fenton reaction to weaken the toxicity risk of"yellow water".关键词
给水管网/管垢/黄水/消毒副产物Key words
drinking water distribution system/pipe scales/yellow water/disinfection by-products分类
资源环境引用本文复制引用
李鹏鲁,庄媛,张克峰,石宝友..给水管网颗粒物对消毒副产物的芬顿催化去除机制[J].环境工程学报,2024,18(12):3467-3474,8.基金项目
国家自然科学基金资助项目(51678558) （51678558）
