污水再生回用对银川市水资源承载力的影响  

Impact of municipal sewage regeneration and circulated use on carrying capacity of water resources in Yinchuan City

作　　者：张静[1,2,3] 唐莲[1,2,4] 刘子西 齐娅荣[1,2] ZHANG Jin;TANG Lian;LIU Zi-xi;QI Ya-rong(School of Civil&Hydraulic Engineering,Ningxia University,Yinchuan 750021,China;Engineering Research Center of Ministry of Education for Efficient Utilization of Modern Agriculture Water Resources in Arid Areas,Ningxia University,Yinchuan 750021,China;Ningxia Rui Wo Water Resource Project Institute Limited Company,Yinchuan 750021,China;Research team of Ministry of Education for“Efficient Utilization of Modern Agriculture Water Resources in Arid Areas”,Ningxia University,Yinchuan 750021,China)

机构地区：[1]宁夏大学土木与水利工程学院,银川750021 [2]宁夏大学“旱区现代农业水资源高效利用教育部工程研究中心”,银川750021 [3]宁夏瑞沃水资源工程研究院有限公司,银川750021 [4]宁夏大学“旱区现代农业水资源高效利用”教育部创新团队,银川750021

出　　处：《安全与环境学报》2020年第2期756-762,共7页Journal of Safety and Environment

基　　金：宁夏2018重点研发计划项目(2018BEG03008);宁夏高等学校一流学科项目(NXYLXK2017A03);宁夏自然科学基金项目(NZ17032);国家自然科学基金项目(51269022)。

摘　　要：立足干旱地区新兴城市银川,构建了基于污水再生回用的银川市水资源承载力系统动力学模型,以污水再生回用量增长率为决策变量,设置了4种提高水资源承载力的情景方案并进行模拟预测,以人口、GDP、缺水量、COD排放总量及污水回用工程投资占GDP比重等水资源承载力特征指标作为输出变量。结果表明,方案4即近期污水再生回用增长率为15%、远期污水再生回用增长率为24%是最符合促进人口增长的发展模式;加速经济发展,增加供水量,减少污染物排放及具有良好的回用工程投资比的银川市污水再生回用发展方案,能够使银川市水资源承载力达到最优水平。The present paper takes Yinchuan( Ningxia) water-resource exploitation system as a case study sample for reconstruction of the municipal sewage regeneration. As a matter of fact,the paper has taken up its engineering construction obligations as the city’s water resource exploitation goals based on the 8 state variables,8 rate variables,44 supplementary variables,20 stable functions and 15 sewage reclamation and constant reuse variables from the following aspects,such as those of social subsystem,economic subsystem and environmental subsystem,which are embedded in the sewage reclamation and reuse functions.The reason for the regeneration and reuse of the municipal sewage goals is that they can win the public recognition as an effective reclaimed way though the water pollution elimination and open source with its water quality reclaimed should be made enough constantly stable and reliable. It is only built up on the said constantly reliable enough foundation that the items can be turned up to be one of the most reliable and confident measures to improve the water resources,especially in such an arid waterdeficient areas as Ningxia. And,for the above purposes,it would be necessary to build up and take up the growth rate of the sewage reclamation and reuse as the decision variable to simulate the 4 scenarios in improving the water resources with enough water-storing capability in accordance with the corresponding urban planning of the system dynamics model to meet the predetermined demands of high reliability through repeated testing and social evaluation. Therefore,the simulation should be carried out with the features of water resource carrying capacity,such as the population concerned,the GDP size,the water shortage evaluation and the needed probability,with the total COD discharge and the investment amount in the sewage reuse project to the corresponding GDP size as the output variables. The above said statistics results can help to show that,according to the developing trend of scheme 1,the capacity of the rec

关 键 词：环境工程学 银川市 水资源承载力 污水再生回用 系统动力学 

分 类 号：X22[环境科学与工程—环境科学]