摘要
除草剂在农业生产上的广泛应用给生态环境带来了危害。近年来,如何攻破低成本、高效、温和且二次污染少的除草剂降解关键技术,成为业界的关注热点。综述了2015—2019年期间,利用类芬顿反应降解多种除草剂(包括草甘膦、敌草隆和莠去津等)的研究进展。这些方法包括芬顿法与生物氧化结合、电芬顿法等去除水体中除草剂的机理及关键技术。分析了这些方法应用存在的二次污染、技术难度与成本等问题。并概述了利用自然界存在的类芬顿反应降解土壤除草剂的可行性与可能机制。最后,对降低除草剂降解产物二次污染的有效方法,以及土壤中除草剂降解新动向进行了展望。
The extensive application of herbicides in agricultural production has caused global harm to the ecological environment.Therefore,in recent years,how to break through the key technology of herbicide degradation with low-cost,high-efficiency,mildness and less pollution has become the focus of the industry.This paper reviews the research progress on the degradation of various herbicides(including glyphosate,diuron,atrazine,etc.)using the Fenton-like reaction from 2015 to 2019.These methods include the mechanism and key technologies of the removal of herbicides in water by combining the Fenton-like reaction with biological oxidation and electric Fenton method.This paper analyzes the problems of secondary pollution,technical difficulty and cost of these methods.The feasibility and possible mechanism of using the Fenton-like reaction in nature to degrade soil herbicides are summarized.Finally,this paper looks forward to effective methods to reduce the secondary pollution of herbicide degradation products and new trends in the degradation of herbicides in soil.
作者
张雪纯
熊秉红
黎华寿
ZHANG Xue-chun;XIONG Bing-hong;LI Hua-shou(College of Resources and Environment,South China Agricultural University,Guangzhou 510642,China;South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,China)
出处
《农药》
CAS
CSCD
北大核心
2020年第5期317-321,338,共6页
Agrochemicals
基金
降水中过氧化氢介导类Fenton反应对土壤典型除草剂的化学-生物耦合降解的机理研究(批准号:31770479)(2018-2021)。
关键词
类芬顿反应
过氧化氢
除草剂降解
Fenton-like reaction
hydrogen peroxide
herbicide degradation
