Evaluation of Performance of Existing RO Drinking Water Stations in the North Central Province, Sri Lanka
文献类型：期刊论文
| 作者 | Indika, Suresh; Wei, Yuansong; Hu, Dazhou; Ketharani, Jegetheeswaran; Ritigala, Tharindu; Cooray, Titus; Hansima, M. A. C. K.; Makehelwala, Madhubashini; Jinadasa, K. B. S. N.; Weragoda, Sujithra K. |
| 刊名 | MEMBRANES
 |
| 出版日期 | 2021-06 |
| 卷号 | 11期号:6页码:- |
| 关键词 | reverse osmosis performance selectivity salt rejection permeate water recovery |
| 英文摘要 | Reverse osmosis (RO) drinking water stations have been introduced to provide safe drinking water for areas with prevailing chronic kidney disease with unknown (CKDu) etiology in the dry zone of Sri Lanka. In this investigation, RO drinking water stations established by community-based organizations (CBO) in the North Central Province (NCP) were examined. Water samples were collected from source, permeate, and concentrate in each station to determine water quality and performance. Furthermore, the operators of the systems were interviewed to evaluate operational and maintenance practices to identify major issues related to the RO systems. Results show that the majority (>93%) of RO systems had higher salt rejection rates (>92%), while water recovery varied from 19.4% to 64%. The removal efficiencies of hardness and alkalinity were averaged at 95.8% and 86.6%, respectively. Most dominant ions such as Ca2+, Mg2+, K+, Na+, Ba2+, Sr2+ Cl-, F-, and SO42- showed higher rejections at averaged values of 93.5%, 97.4%, 86.6%, 90.8%, 95.4%, 96.3%, 95.7%, 96.6%, and 99.0%, respectively. Low recovery rates, lower fluoride levels in product water, and membrane fouling were the main challenges. Lack of knowledge and training were the major issues that could shorten the lifespan of RO systems. |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry, Physical ; Engineering, Chemical ; Materials Science, Multidisciplinary ; Polymer Science |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46042]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Lab Water Pollut Control Technol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Natl Inst Fundamental Studies, Hanthana Rd, Kandy 20000, Sri Lanka 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China 5.Univ Peradeniya, Dept Civil Engn, Peradeniya 20400, Sri Lanka 6.Uva Wellassa Univ, Dept Appl Earth Sci, Badulla 90000, Sri Lanka |
| 推荐引用方式 GB/T 7714 | Indika, Suresh,Wei, Yuansong,Hu, Dazhou,et al. Evaluation of Performance of Existing RO Drinking Water Stations in the North Central Province, Sri Lanka[J]. MEMBRANES,2021,11(6):-. |
| APA | Indika, Suresh.,Wei, Yuansong.,Hu, Dazhou.,Ketharani, Jegetheeswaran.,Ritigala, Tharindu.,...&Weerasooriya, Rohan.(2021).Evaluation of Performance of Existing RO Drinking Water Stations in the North Central Province, Sri Lanka.MEMBRANES,11(6),-. |
| MLA | Indika, Suresh,et al."Evaluation of Performance of Existing RO Drinking Water Stations in the North Central Province, Sri Lanka".MEMBRANES 11.6(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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