西北干旱地区城市再生水供需关系及循环利用模式研究

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关键词：城市再生水；供需评估方法；系统动力学；循环利用模式中图分类号：X703 文献标识码：A 文章编号：1008-9500（2025）05-0123-04DOI： 10.3969/j.issn.1008-9500.2025.05.035

Abstract： Inresponsetotheloweficiencyofrecycled waterutilization inthe northwestregion，asystemdynamicsbased evaluation modelfor thesupplyanddemandsystemofrecycled water was constructedtomoreaccuratelyreflecthedynamic changes inthe supplyanddemand relationshipof recycled water.A multi-stage optimization method for urban recycled waterutilizationmodel was proposed toimprove theutilization eficiencyof recycled water and reduce thecostofrecycled waterutlization.Theresultsshowedthattheaveragerelativeerors betweenthesmulatedandactual valuesofsewage discharge and recycled water supply were 3.84% and 8.27% ，respectively. After optimizing the reclaimed water prices for different users， the reclaimed water pricesfordomestic water，municipal water，and industrial waterareO.80，O.42yuan/m，and1.45yuan/m respectively.Theresultsindicatethatthe proposed methdcan efectivelyimprovetheutilization eficiencyofrecycledwater， contribute tothesustainabledevelopment ofurban waterresources，waterenvironment，and water ecology，andprovidedecision support for relevant departments in water resource management， environmental protection，and urban planning.

Keywords： urban reclaimed water; supply and demand assessment methods; system dynamics; recycling mode

西北干旱地区水资源匮乏，水资源短缺的问题严重制约了当地的经济发展和生态环境保护[l。（剩余3578字）