斯里兰卡CKDu病区地下水源水质分析及纳滤膜技术在该地区饮用水处理中的应用  

Water quality analysis of and application of nanofiltration membrane technology in treating groundwater in CKDu affected areas of Sri Lanka

作　　者：胡大洲 COORAY Titus 郑利兵[1,2] 钟慧[1,2] WERAGODA Sujithra WEERASOORIYA Rohan 魏源送[1,2,3] HU Dazhou;COORAY Titus;ZHENG Libing;ZHONG Hui;WERAGODA Sujithra;WEERASOORIYA Rohan;WEI Yuansong(State Key Joint Laboratory of Environment Simulation and Pollution Control,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;Laboratory of Water Pollution Control Technology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China;Department of Applied Earth Sciences,Uva Wellassa University,Badulla 90000,Sri Lanka;National Water Supply and Drainage Board,Kandy 20800,Sri Lanka;Natl Inst Fundamental Studies,Hantana Rd,Kandy 20000,Sri Lanka)

机构地区：[1]中国科学院生态环境研究中心,环境模拟与污染控制国家重点联合实验室,北京100085 [2]中国科学院生态环境研究中心水污染控制实验室,北京100085 [3]中国科学院大学,北京100049 [4]乌瓦韦拉萨大学应用地球科学系,班杜拉90000,斯里兰卡 [5]斯里兰卡供水和排水委员会,康提20800,斯里兰卡 [6]斯里兰卡国家基础科学研究院,康提20000,斯里兰卡

出　　处：《环境工程学报》2021年第6期1937-1945,共9页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金中斯国际合作项目(2181101007);ANSO联合研究项目(ANSO-CR-KP-2020-05)。

摘　　要：针对斯里兰卡CKDu病区饮用水安全保障的需求,分别在雨季和旱季调查了斯里兰卡CKDu病区北中省Anuradhapura地区的地下水水质。结果表明,地下水中硬度和F-的平均质量浓度分别超过250.0 mg·L^(-1)和1.49 mg·L^(-1),均高于斯里兰卡饮用水标准(SLS 614-2013),且溶解性有机物(DOC)平均质量浓度大于4.0 mg·L^(-1)。在斯里兰卡Anuradhapura地区Sirimapura村援建以纳滤(NF)膜技术为核心的地下水源饮用水站,于2018年9月投入运行。运行结果表明,NF水站可有效去除地下水的硬度、F-和DOC,硬度、F-的平均截留率分别达80%和85%,DOC可完全去除,产水水质满足斯里兰卡国家饮用水水质标准(SLS 614-2013)。NF水站具有易于操作、便于维护、产水水质优异等优点,产水呈弱碱性(pH=7.3),且可保留部分对人体有益的矿物质。For the provision of safe drinking water supply in CKDu affected areas in Sri Lanka,t this study investigated the groundwater quality of Anuradhapura,North Central Province,Sri Lanka in both wet and dry seasons,and developed a nanofiltration(NF)membrane-based water supply technology for CKDu prevalence zones.Results showed that the average concentrations of hardness and F-exceeded the limit values by the Sri Lankan Potable Water Standards(SLS 614-2013)(250 mg·L^(-1) and 1.0 mg·L^(-1) respectively),and the average concentration of dissolved organic matter(DOC)was higher than 4.0 mg·L^(-1) in most samples.A pilot NF-based groundwater treatment plant was developed and installed in Sirimapura village of Anuradhapura,Sri Lanka in September 2018,and its performance over one year showed that the NF-based plant can not only effectively remove hardness and F-in groundwater at their average rejection rates of 80% and 85%,respectively,but also nearly completely remove the DOC.The produced water quality of the NF-based plant was excellent and met the SLS 614-2013.The NF-based plant has advantages of easy operation&maintenance,excellent water quality of produced water with p H at 7.3 and keeping minerals and trace elements beneficial for human health.

关 键 词：斯里兰卡 CKDu病区 地下水 溶解性有机物 纳滤 

分 类 号：X523[环境科学与工程—环境工程]