城市高度建成区河道生态补水治理方案研究  

Study on ecological compensation scheme of rivers in urban built-up area

作　　者：史贵君 仝晓辉[1] 汪银龙 刘晓宁 张永宜 SHI Guijun;TONG Xiaohui;WANG Yinlong;LIU Xiaoning;ZHANG Yongyi(China Communications First Highway Survey and Design Institute Co.,Ltd.,Xi’an 710065,China;Xi'an Zhongjiao Environmental Engineering Co.,Ltd.,Xi’an 710065,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,陕西西安710065 [2]西安中交环境工程有限公司,陕西西安710065

出　　处：《人民长江》2020年第4期75-80,134,共7页Yangtze River

基　　金：中交一公院科创基金项目(KCJJ2018-10)。

摘　　要：为探究城市高度建成区河道水质改善方法,以深圳市宝安区铁排河为研究对象,基于各河段的特征差异,计算不同河段的生态环境需水量、水库最小下泄生态流量及再生水和雨水的潜力资源,在保障水量及水质的前提下,提出相应的生态补水措施。研究表明:在以铁岗水库最小下泄水量为基础的前提下,铁排河各河段的降雨不能满足生态环境需水量,只能作为间歇补水,固戍污水处理厂的再生水可作为常态性水源;城市高度建成区的河段雨水补水宜采用人工调蓄及物化处理,在可利用空间较大的河段可采用生态调蓄净化雨水,以此削减入河污染浓度。生态砾石床、生态浮岛及水下森林的构建均能改善水环境生态系统,保障生态功能的稳定。To explore the improvement method of river water quality in the highly urban built-up area,the Tiepai River in Baoan District,Shenzhen City is selected as the study area.Based on the characteristics of different reaches,the ecological water demand of different reaches,the minimum ecological discharge of the reservoir and the potential resources of reclaimed water and rainwater,the ecological compensation resolution is proposed.The research shows that under the premise of the minimum discharge released by Tiegang Reservoir,the rainfall of each reach of Tiepai River can not meet the ecological environment water demand,which can only be used as intermittent compensation.The reclaimed water of the Gushu sewage treatment plant can be used as a normal water source.After artificial storage,physical and chemical treatment,the rainwater can be used to replenish rivers in urban built-up area,and ecological storage and regulation methods can be used to purify the rainwater at river reaches with large space,so as to reduce the pollution concentration.The construction of ecological gravel beds,ecological floating islands and underwater forests can improve the water ecosystem and ensure the stability of ecological functions.

关 键 词：生态补水 生态环境需水量 初雨水 再生水 城市高度建成区 铁岗水库 铁排河 

分 类 号：X522[环境科学与工程—环境工程]