摘要
以达州市农村黑臭水体治理试点工程为例,通过实地调查、数据采集、水质监测等方式,全面分析了农村黑臭水体的特征、污染负荷及成因。研究表明,试点水体主要污染源为农村生活污水和农业面源,内源污染和水系不畅影响了水体自净能力。对此,通过实施控源截污、清淤疏浚、水系连通、生态修复等工程后,COD,NH_(3)-N,TN,TP的入河量分别下降了88.51%,87.13%,72.35%,73.26%,水体中DO、透明度、NH_(3)-N指标均优于黑臭阈值,彻底根除了黑臭问题。试点项目为农村黑臭水体治理工作提供了经验和参考,对推动农村人居环境提升具有重要意义。
Taking the pilot project for rural black-odorous water remediation in Dazhou City as a case study,this research analyzed the characteristics,pollution loads,and causes of rural black-odorous water bodies through field investigations,data collection,and water quality monitoring.The study found that the target water bodies were mainly affected by domestic sewage and agricultural non-point source pollution,with weakened self-purification due to endogenous contamination and poor water connectivity.To address these issues,measures such as source control,pollution interception,dredging,water system connectivity enhancement,and ecological restoration were implemented.As a result,the influx of COD,ammonia nitrogen,total nitrogen,and total phosphorus decreased by 88.51%,87.13%,72.35%and 73.26%,respectively.Key indicators,including dissolved oxygen,transparency,and ammonia nitrogen concentrations,exceeded the thresholds for black-odorous water criteria,effectively eliminating the malodorous phenomenon.This pilot project provides valuable experience and references for water environment remediation in similar rural regions,demonstrating significant implications for improving rural living environments.
作者
古腾
耿向永
张建纯
李淑渠
陈靖
赖长邈
GU Teng;CENG Xiang-yong;ZHANG Jian-chun;LI Shu-qu;CHEN Jing;LAI Chang-miao(Sichuan Academy of Eco-Environmental Sciences,Chengdu 610000,China;Sichuan Province Environmengtal Protection Technology&Engineering Co.,Ltd.,Chengdu 610045,China;Dazhou Academy of Eco-Environmental Sciences,Dazhou 635000,China;Dachuan Ecological and Environmental Monitoring Station of Dazhou City,Dazhou 635000,China)
出处
《环境科技》
2025年第3期40-45,共6页
Environmental Science and Technology
基金
2024年四川省生态环境科学研究院项目(2200000020408)。
关键词
农村黑臭水体
农村生活污水
清淤疏浚
生态修复
水系连通
治理成效
Rural black and odorous water bodies
Rural domestic sewage
Dredging
Ecological restoration
Water system connectivity
Treatment effectiveness
