Kidney Disease, Health, and Commodification of Drinking Water: An Anthropological Inquiry into the Introduction of Reverse Osmosis Water in the North Central Province of Sri Lanka

2021 ◽  
Vol 80 (2) ◽  
pp. 140-151
Author(s):  
M.W. Amarasiri de Silva ◽  
Steven M. Albert

In response to evidence suggesting that polluted drinking water is a risk factor for Chronic Kidney Disease of Unknown Etiology (CKDu) in Sri Lanka, the government introduced reverse osmosis (RO) water as an alternative form of drinking water in the North Central Province (NCP) between 2010 and 2016. We examine whether CKDu prevalence and disease progression have been reduced as a result of the introduction of RO water and behavioral changes and how villagers perceive the changes.

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Asanga Venura Ranasinghe ◽  
Gardiye Weligamage Gamini Priyantha Kumara ◽  
Ranamuka Henayage Karunarathna ◽  
Ambepitiyawaduge Pubudu De Silva ◽  
Korale Gedara Dilini Sachintani ◽  
...  

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 383
Author(s):  
Suresh Indika ◽  
Yuansong Wei ◽  
Dazhou Hu ◽  
Jegetheeswaran Ketharani ◽  
Tharindu Ritigala ◽  
...  

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.


2011 ◽  
Vol 17 (3) ◽  
pp. 213-221 ◽  
Author(s):  
Shanika Nanayakkara ◽  
Toshiyuki Komiya ◽  
Neelakanthi Ratnatunga ◽  
S. T. M. L. D. Senevirathna ◽  
Kouji H. Harada ◽  
...  

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