| 摘要: |
| 【目的】随着城市群水资源需求量的增大,水资源供需矛盾日益突出,提高污水处理率并回用于城市的社会经济发展具有十分重要的意义。【方法】根据城市水资源的投入产出分析,确定单位水资源的GDP增加值,以污水回用量最大和回用产生的经济效益最大为目标,构建城市污水回用多目标配置模型,利用现代智能算法NSGA-Ⅱ对模型进行求解,获得Pareto最优解集。【结果】依据经济收益最大和回用水量接近实际值来确定每个城市的最优配水方案,实现京津冀城市群污水回用量的最优分配,基于GIS空间分析功能,确定城市群污水回用的空间量化关系。【结论】依据空间优化分配方案,提出回用水资源化的管理设想及应对措施。 |
| 关键词: 城市群;水资源;多目标;空间;优化配置 |
| DOI： |
| 分类号:X383 |
| 基金项目:国家社会科学一般项目（13BJY065） |
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| The Spatial Multi-objective Optimal Research of Reused Water for Urban Agglomeration Based on NSGA-Ⅱ |
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ZENG Wenlu, JING Yangyang
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College of Environmental Science and Engineering,Nankai University
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| Abstract: |
| 【Objective】By the increased demand for water resources, the contradiction becomes more and more prominent between supply and demand of water resources. It is of great significance to improve the sewage treatment rate and reuse it to the social and economic development in urban. 【Method】According to the input and output analysis of urban water resources, the GDP increased value of unit water resources can be determined, multi-objective distribution model is set up for reusing urban wastewater based on maximizing the economic benefit and quantity of wastewater, adopting modern intelligent algorithm NSGA-II, the model is solved and obtain the Pareto optimal solution set. 【Result】The optimal water allocation is determined according to the maximum economic benefit and the water consumption close to the actual value. The optimal allocation scenarios of wastewater can be selected in Beijing-Tianjin-Hebei urban agglomeration. Based on the socio-economic development of the Beijing-Tianjin-Hebei urban agglomeration, according to GIS spatial function, a spatial analysis is conducted to the distribution plan.【Conclusion】According to the spatial optimization allocation plan, the management ideas and countermeasures are put forward for the reuse of wastewater. |
| Key words: urban agglomeration; water resources; multi-objective; space; optimal allocation |
