城市供水管网水源切换模拟及黄水控制措施研究
发布时间：2018-08-07 12:58
【摘要】：针对Z市未来水源切换期间可能发生的黄水现象,通过建立小区试验模型,研究了管网中总铁、溶解氧和硫酸盐等水质参数在换水期间的变化规律。研究结果表明:硫酸盐浓度可以作为整个水源切换过程的指示性指标,该市主要管网水源切换过程的终点时间约30h,小区管道在换水期间将发生铁超标现象,通过增大管道内余氯浓度至0.4mg/L以上,控制管网溶解氧水平在4.50mg/L以上,可在换水7d后有效缓解黄水现象。
[Abstract]:In view of the yellow water phenomenon which may occur during the future water source switching in Z city, the variation of total iron, dissolved oxygen and sulfate in the pipe network during the period of water exchange is studied by establishing the plot test model. The results show that the sulfate concentration can be used as an indicator for the whole process of water source switching. The end point of the water source switching process of the main pipe network in the city is about 30 hours, and the phenomenon of iron exceeding the standard will occur in the pipeline of the residential area during the period of water exchange. By increasing the residual chlorine concentration above 0.4mg/L and controlling the dissolved oxygen level of the pipe network above 4.50mg/L, the yellow water phenomenon can be effectively alleviated after 7 days of water exchange.
【作者单位】： 郑州自来水投资控股有限公司;
【基金】：郑州市技术研究与开发支持重点科技攻关项目(121PZDGG320) 郑州市民生科技进步工程项目(131PZDGC143) 国家水体污染控制与治理科技重大专项(2012ZX07404-004)
【分类号】：TU991
[Abstract]:In view of the yellow water phenomenon which may occur during the future water source switching in Z city, the variation of total iron, dissolved oxygen and sulfate in the pipe network during the period of water exchange is studied by establishing the plot test model. The results show that the sulfate concentration can be used as an indicator for the whole process of water source switching. The end point of the water source switching process of the main pipe network in the city is about 30 hours, and the phenomenon of iron exceeding the standard will occur in the pipeline of the residential area during the period of water exchange. By increasing the residual chlorine concentration above 0.4mg/L and controlling the dissolved oxygen level of the pipe network above 4.50mg/L, the yellow water phenomenon can be effectively alleviated after 7 days of water exchange.
【作者单位】： 郑州自来水投资控股有限公司;
【基金】：郑州市技术研究与开发支持重点科技攻关项目(121PZDGG320) 郑州市民生科技进步工程项目(131PZDGC143) 国家水体污染控制与治理科技重大专项(2012ZX07404-004)
【分类号】：TU991
【参考文献】
相关期刊论文 前2条
1 王洋;张晓健;陈超;潘安君;徐扬;廖平安;张素霞;顾军农;;水源切换引起给水管网黄水问题原因分析[J];环境科学;2009年12期
2 周全;韩珀;徐娟;苏U，
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