高密度建成区水环境综合整治工程关键技术分析  

Analysis of Key Technologies for Comprehensive Water Environment Improvement in High-Density Urban Areas

作　　者：李士义 Li Shiyi(PowerChina Huadong Engineering Corporation,Hangzhou 311122,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122

出　　处：《广东化工》2024年第20期156-158,161,共4页Guangdong Chemical Industry

摘　　要：高密度建成区城市内河随着城市的快速发展和环境保护的相对滞后,往往面临着水环境恶化、水生态不佳等问题,南京市金川河作为典型的高密度建成区城市内河也面临着严峻的水环境问题。因此,金川河水环境综合提升工程于2018年启动,涵盖内外金川河及其四条支流,总长12.15公里。通过对金川河及其支流水质、流量、沿线排口、生态本底和淤积情况的全面调查和分析,制定出针对不同河段的综合治理方案,采用了控源截污、清淤疏浚、生态补水、水位优化控制和生态修复等综合性措施。项目实施后,金川河水质显著改善,主要水质指标达到Ⅳ类水标准,NH3-N浓度下降56.8%。本项目以科学和务实的态度推进项目实施,不断进行技术攻关和科技创新,解决了工程实际问题,为后续城市内河水环境治理项目提供了可推广、可借鉴的经验。Urban rivers in high-density built-up areas often face issues such as water environment degradation and poor water ecology due to rapid urban development and relatively lagging environmental protection measures.Jin Chuan River in Nanjing,a typical urban river in a high-density built-up area,also faces severe water environment problems.Therefore,the comprehensive water environment improvement project of Jin Chuan River was initiated in 2018,covering the inner and outer Jin Chuan River and its four tributaries,with a total length of 12.15 kilometers.A comprehensive investigation and analysis of the water quality,flow,outfalls along the river,ecological background,and sedimentation conditions of Jin Chuan River and its tributaries were conducted to formulate integrated treatment plans for different river sections.The project implemented five major measures:source pollution control,dredging,ecological water replenishment,water level optimization,and ecological restoration.After the implementation of the project,the water quality of Jin Chuan River significantly improved,with the main water quality indicators reaching Class IV standards.This project advanced its implementation with a scientific and pragmatic attitude,continuously overcoming technical challenges and innovating technologies,solving practical engineering problems,and providing replicable and referable experiences for subsequent urban river water environment management projects.

关 键 词：水环境 生态修复 高密度建成区 城市内河 

分 类 号：X522[环境科学与工程—环境工程]