作　　者： ; ; ;

机构地区： 中水珠江规划勘测设计有限公司

出　　处： 《给水排水》 2019年第8期33-35,共3页

摘　　要： 板桥溪是受潮汐影响的盲肠河道,上游无洁净水源补给,截污后河道断流,影响河道整体治理效果。根据《河湖生态环境需水计算规范》(SL/Z 712-2014),按Tennant法确定生态环境需水为多年平均流量的40%。低潮位期间,利用泵站对板桥溪进行活水,恢复河道生态流量,改善河道水动力条件,盘活洼地存水。活水工程实施后,水质稳定达到《地表水环境质量标准》(GB 3838-2002)Ⅴ类标准,有效改善了水质和感官指标。 Banqiao River is a cecal river with tidal influence.There is no clear water supply in the upstream,and the river was cut off after interception,which affects the overall treatment effect of the river.According to the Specification for calculation of environmental flow in rivers and lakes(SL/Z 712-2014),the environmental flow is determined to be 40% of the average annual flow according to the Tennant method.During the low tide period,the pumping station is used to water flowing to Banqiao River,restore the environmental flow of the river,improve the hydrodynamic conditions of the river,and revitalize the water in the depression.After the implementation of water flowing project,the water quality has consistently met the ClassⅤstandard of Environmental quality standards for surface water(GB 3838-2002),effectively improved water quality and sensory indicators.

关 键 词： 盲肠河道 生态流量 活水工程

领　　域： []