Potential contributions to Beijing's water supply from reuse of storm-and greywater

作     者：刘栗 Marina Bergen Jensen 孟庆一 Liu Li;Marina Bergen Jensen;Meng Qingyi

作者机构：哥本哈根大学地球科学和自然资源管理系 中国丹麦科研教育中心北京100191 北京水科学与技术研究院北京100048 

出 版 物：《Journal of Southeast University(English Edition)》 (东南大学学报（英文版）)

年 卷 期：2014年第30卷第2期

页      面：150-157页

核心收录：

学科分类：082802[工学-农业水土工程] 08[工学] 0828[工学-农业工程] 0815[工学-水利工程] 

主　　题：urban water cycle water supply water reuse 

摘      要：In order to find new approaches to alleviating the water crisis in Beijing which is caused by among others dwindling precipitation and rapid growth of population and manifests in a rapidly declining groundwater table this study explores decentralized stormwater harvesting and greywater reuse at household level as a means to reduce groundwater abstraction and water transfer from other *** on a desktop case study two concepts for combined harvesting and reusing of storm-and greywater are *** rough pre-assumptions calculations show that a saving of 67.8%of tap water consumption can be achieved with the upgrading concept compared with 5.9% with the simple downgrading *** saving with the upgrading concept equals 0.545 ×109 m3 annual water volume if 20 million Beijing people apply this *** numerous prerequisites such as water treatment technology space demand energy and cost and public acceptance this paper advocates combining stormwater harvesting and greywater reuse in households with other measures for Beijing’s sustainable water management.