从“大截排”到清源和低影响开发——基于水质目标约束的情景模拟与规划

发布时间：2018-03-10 20:49

本文选题：雨污分流　切入点：低影响开发　出处：《中国环境科学》2017年10期 　论文类型：期刊论文

【摘要】：运用SWMM模型,以深圳市茅洲河流域光明片区为例,以管网密度、距离及环境容量为约束条件,提出雨污分流改造和海绵城市改造的情景方案和决策判定依据.研究结果表明:海绵城市的建设中低影响开发面积改造比例与污染物削减率之间存在指数关系,9个雨污分流改造的研究小区中有鹅颈玉田、茅洲大凼和公明大凼区域需要匹配海绵城市改造,改造面积比例建议分别为30%、85%和20%.当某一研究小区与已建污水处理厂的距离小于27.25km时,投资建设污水管网与已建污水处理厂处理比新建污水处理厂更具有经济可行性,超过这个距离,新建一座污水处理厂比建设长距离污水管网更划算.对于本文研究案例,在只考虑污水处理厂节省的雨水处理成本下,各研究小区进行雨污分流改造的回本时间为27~64a.本研究提出的决策判定思路和依据能为城市建成区消除内涝和内河黑臭提供新的方法学视角,能为深圳市以及其他同类地区水环境整治规划提供决策信息参考.
[Abstract]:By using SWMM model, taking the Guangming area of Maozhou River Basin in Shenzhen as an example, the network density, distance and environmental capacity are taken as the constraint conditions. This paper puts forward the scenario scheme and decision basis for the transformation of rain pollution diversion and sponge city. The research results show that there is an exponential relationship between the proportion of low impact development area and the reduction rate of pollutants in the construction of sponge city. In the research area of the diversion transformation of rain pollution, there is the Yutian of goose neck. The area of Maozhou Dantang and Gongming Datai need to be reconstructed by matching sponge city, the proportion of the reconstructed area is 30 85% and 20% respectively. When the distance between a certain research district and the sewage treatment plant is less than 27.25 km, It is more economical and feasible to invest in the construction of sewage pipe network and the treatment of existing sewage treatment plant than to build a new sewage treatment plant. Beyond this distance, it is more cost-effective to build a new sewage treatment plant than to build a long distance sewage pipe network. Considering only the savings of the sewage treatment plant in Rain Water's treatment costs, The recovery time of rainwater diversion and transformation in each research area is 274A. The decision decision method and basis proposed in this study can provide a new methodological perspective for the elimination of waterlogging and the black-smelling of inland rivers in urban built-up areas. It can provide decision information reference for water environment improvement planning in Shenzhen and other similar areas.
【作者单位】：广西大学资源环境与材料学院;广西大学数学与信息科学学院;广西大学计算机与电子信息学院;
【基金】：2017年度教育部人文社会科学研究青年基金(17YJCZH153) 广西大学科研基金(xgz150300)
【分类号】：TU992;X703

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