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渗排植被浅沟应用于处置路面径流案例分析

Keywords: 非点源污染,渗排植被浅沟,路面径流

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Abstract:

针对非点源径流污染问题,在对渗排植被浅沟的构造、场地布置原则、设计流量、水力计算及主要参数等分析的基础上,以廊坊市大皮营渠沿线雨洪控制利用工程中新型植被浅沟处理路面径流为例,从水质净化及径流削减两方面考察了浅沟的运行效果。结果表明,渗排浅沟对小降雨事件能发挥较好的径流削减效果,其径流削减百分比随进水流量的增加减小。相比于传统传输型植被浅沟,径流中SS、TP得到了有效去除,COD、NH4+-N则由于其溶解性较强而去除率提升幅度不高。

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