摘要
针对银川市水资源紧缺、湖泊生态补水较为困难、水生态环境脆弱等问题,结合银川市再生水工程现状及规划情况,从再生水水量、水质及工程建设方面对再生水补充湖泊的可行性进行分析。银川市中心城区再生水可利用量超过1亿m^3/a,再生水水质在近期为一级A标准,到远期可以达到地表水Ⅳ类标准,并在近期内将建成中心城区的再生水主管道,使再生水为湖泊补水提供了可行性。近期再生水水质低于地表水Ⅳ类标准,利用再生水补给湖泊时,需采取有效措施防止水质恶化,远期再生水补充湖泊,需注意总磷指标超标问题。
In view of the shortage of water resources in Yinchuan City,the difficulty of lake ecological water supply and the fragility of aquatic environment,the feasibility of reclaimed water replenishing lakes is analyzed,based on the present situation of recycled water works with the consideration of water quality and engineering construction.Reclaimed water can be used more than 100 million m3/a,in center city of Yinchuan.The reclaimed water quality now is a standard and it will reach the surface water classⅣstandard in the long term.With the coming of main pipeline building of the reclaimed water in the central city,the reclaimed water supply for the lake becomes a reality.Presently,we need to take effective measures to prevent water quality deterioration when we use reclaimed water to recharge the lake because of its lower quality.In longterm,we should pay more attention to excessive indicators of total phosphorus in reclaimed water before replenishing lakes.
作者
田巍
陈耀文
鲍子云
TIAN Wei;CHEN Yaowen;BAO Ziyun(Ningxia Water Conservancy Science Research Institute,Yinchuan 750021,China)
出处
《宁夏工程技术》
CAS
2018年第1期45-48,52,共5页
Ningxia Engineering Technology
基金
宁夏回族自治区重点研发计划(科技惠民)项目(2016KJHM123)
国家重点研发计划项目(2016YFC0402900)
关键词
再生水
再生水回用
水质
城市河湖
reclaimed water
reclaimed water reuse
water quality
urban rivers and lakes
