摘要
近年来排水管道中沉积大量重金属,造成了排放水体的污染,在环境中二次析出后还易造成破坏生态环境、威胁生物安全等危害。本文分析了排水管道中重金属的来源、分布特性、污染现状及危害。针对这些污染危害提出了三种排水管道沉积物中重金属污染修复防治技术,即原位修复方式,安装可渗透性过滤网,培养硫酸盐还原菌沉淀重金属。从增加绿化面积,建立生物氧化塘两方面探讨被污染环境的修复方法,帮助我国有方向、有计划地去治理排水管道中的重金属污染问题。
Recently pipeline leakage caused by heavy metals deposited in drainage pipes occurs frequently,which damages ecological environment,threatens biosecurity and otherhazards.Combined with the characteristics of Water Supply And Drainage,this essay analyzes the sources,pollution hazards and potential threats of heavy metals in drainage pipes.In view of these pollution hazards,three methods of remediation and prevention of heavy metal pollution in sediment of drainage pipeline are summarized,namely in-situ remediation,installation of permeable filter mesh,and culture of sulphate REDOX bacteria to precipitate heavy metals.This paper discusses the remediation methods of polluted environment from two aspects of increasing green area and cultivating aquatic plants,so as to help China to treat heavy metals in drainage pipes in a directed and planned way.
作者
马雨婷
张旖
潘静慧
张艺卓
张梦婕
薛红琴
Ma Yuting;Zhang Yi;Pan Jinghui;Zhang Yizhuo;Zhang Mengjie;Xue Hongqin(Nanjing Forestry University,Nanjing 210037,China)
出处
《山东化工》
CAS
2021年第8期262-263,共2页
Shandong Chemical Industry
基金
南京林业大学大学生创新训练计划项目(202010298115Y)
关键词
重金属污染
排水管道
沉积物
修复技术
heavy metal pollution
drainage pipe
sediment
remediation technology
