학술논문
基于小流域水环境治理探索雨季溢流污染防治的深圳实践 / SHENZHEN'S PRACTICE OF POLLUTION PREVENTION AND CONTROL OF RAINFALL OVERFLOW BASED ON WATER ENVIRONMENT GOVERNANCE IN SMALL WATERSHED
Document Type
Academic Journal
Author
Source
环境工程 / Environmental Engineering. 41(12):99-106
Subject
Language
Chinese
ISSN
1000-8942
Abstract
针对降雨溢流污染造成水环境质量不能稳定达标的问题,探索了深圳小流域水环境动态治理的技术路径.首先,以全覆盖的连续实测水质数据为基础,精准识别出雨季水质超标河流及溢流排口作为治理对象;其次,以雨季水质超标河流及溢流排口所在小流域为单元,开展全要素溯源排查,系统找出小流域范围内存在的各类水环境问题,建立问题-措施-目标的对应关系和整治任务台账;最后,针对整治完成的小流域,结合措施实施情况及水质监测结果进行达标评估和雨季水质检验工作,并实行动态管理.经过一年多的探索与实践,雨季达到或优于地表水Ⅲ类的河流监测断面占比同比提升 7.73%,3 大国考断面汛期溢流污染强度同比降幅超过 25%,雨季溢流污染防治取得一定成效.为其他城市雨季溢流污染防治提供参考.
Considering the issue of inconsistent adherence to water environment quality standards due to pollution from rainfall overflow,the technical approach to managing dynamic water environments in small watersheds in Shenzhen was investigated.Firstly,by utilizing comprehensive continuous water quality data of full coverage,the rivers exceeding standard levels during the rainy season and their corresponding overflow outlets were accurately identified as treatment targets.Secondly,a holistic investigation was conducted within each small watershed where these rivers and overflow outlets were located in order to systematically identify various existing water environment problems.This facilitated the establishment of problem-measure-target relationships and rectification task ledgers aimed at promoting effective remediation efforts.Finally,based on the implementation of the measures and the results of water quality monitoring,the standard assessment and water quality inspection in rainy season are carried out in the small watershed after renovation,and dynamic management is implemented.After over one year of exploration and implementation,there has been a 7.73％annual increase in the proportion of river monitoring sections meeting or surpassing Class Ⅲ standards during the rainy season;additionally,there has been a yearly reduction of more than 25％in flood season overflow pollution intensity across three major national sections.These achievements demonstrate certain results in preventing and controlling rainfall overflow pollution during the rainy season.The findings presented herein can serve as valuable references for other cities seeking to address similar issues related to rainfall overflow pollution prevention and control.
Considering the issue of inconsistent adherence to water environment quality standards due to pollution from rainfall overflow,the technical approach to managing dynamic water environments in small watersheds in Shenzhen was investigated.Firstly,by utilizing comprehensive continuous water quality data of full coverage,the rivers exceeding standard levels during the rainy season and their corresponding overflow outlets were accurately identified as treatment targets.Secondly,a holistic investigation was conducted within each small watershed where these rivers and overflow outlets were located in order to systematically identify various existing water environment problems.This facilitated the establishment of problem-measure-target relationships and rectification task ledgers aimed at promoting effective remediation efforts.Finally,based on the implementation of the measures and the results of water quality monitoring,the standard assessment and water quality inspection in rainy season are carried out in the small watershed after renovation,and dynamic management is implemented.After over one year of exploration and implementation,there has been a 7.73％annual increase in the proportion of river monitoring sections meeting or surpassing Class Ⅲ standards during the rainy season;additionally,there has been a yearly reduction of more than 25％in flood season overflow pollution intensity across three major national sections.These achievements demonstrate certain results in preventing and controlling rainfall overflow pollution during the rainy season.The findings presented herein can serve as valuable references for other cities seeking to address similar issues related to rainfall overflow pollution prevention and control.