摘要
印染废水具有排放量大、可生化性低等特点,传统水处理工艺难以对其高效处理,并存在二次污染风险。高级氧化技术(Advanced Oxidation Process,AOPs)可原位产生强氧化性活性物质,快速氧化难降解有机污染物,在印染废水处理方面成效显著。羟基自由基(·OH)和硫酸根自由基(SO_(4)·^(-))是高级氧化体系常见的活性物种,本文介绍了基于这两类活性物种的各类高级氧化技术的作用机理及其处理印染废水的实例和研究进展,并展望了高级氧化技术在印染废水领域的发展方向,以期为今后印染废水的处理提供参考。
With the properties of large discharge and low biodegradability,printing and dyeing wastewater was not efficiently treated bytraditional water treatment processes accompanied with the risk of secondary pollution.Advanced oxidation processes can in situ produce strongly oxidativereactive species to rapidly oxidizerecalcitrant organic pollutants,being effective in treating the printing and dyeing wastewater.Hydroxyl radical(·OH)and sulfate radical(SO_(4)·-)are the common reactive species in advanced oxidation processes.Based on the above reactive species,this paper reviewed the progresses of various advanced oxidation processes(reaction mechanisms and research cases)and prospected the development direction,looking forward to providing reference for the treatment of printing and dyeing wastewater.
作者
杨淼淼
YANG Miaomiao(College of Environmental Science and Engineering,China West Normal University,Nanchong 637000,China)
出处
《生物化工》
2022年第1期149-152,共4页
Biological Chemical Engineering
关键词
高级氧化
印染废水
羟基自由基
硫酸根自由基
advanced oxidation processes
printing and dyeing wastewater
hydroxyl radical
sulfate radical
