A case study of comparative techno-economic and life cycle assessment of tap water versus household reverse osmosis-based drinking water systems in a North Indian city

IF 1.6 4区 环境科学与生态学 Q3 WATER RESOURCES
K. M. Gani, Sohaib Rashid Rather, Amit Chandra, Mubashir Arshid
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Abstract

Household reverse osmosis (RO)-based water purifiers have gained popularity in India due to concerns about the quality of tap water. However, the widespread adoption of these systems has significant impacts on water pricing and the environment. The objective of this study was to assess the techno-economic performance and life cycle assessment (LCA) of household RO-based water purifiers in Srinagar city of North India. Our results demonstrate that household ROs reduce the concentration of important dietary minerals such as fluoride and magnesium in drinking water by 50%. In addition, the average total water cost from a household RO is three to four times more than what is being paid for tap water. Two different scenarios were compared in LCA. The first scenario was safe drinking water from a conventional drinking water treatment plant (scenario 1), while the second scenario was water from a household RO system (scenario 2). The results showed that the environmental impacts of abiotic depletion, acidification of water bodies, eutrophication, global warming and ozone depletion in scenario 2 were higher than in scenario 1. The findings infer that water utilities should encourage citizens to rely on conventional tap water as a cheaper and environmentally friendly option compared to household ROs.
北印度城市自来水与家用反渗透饮用水系统的比较技术经济和生命周期评估案例研究
由于对自来水质量的担忧,家用反渗透净水器在印度越来越受欢迎。然而,这些系统的广泛采用对水价和环境产生了重大影响。本研究的目的是评估印度北部斯利那加市家用RO净水器的技术经济性能和生命周期评估(LCA)。我们的研究结果表明,家庭RO可将饮用水中氟化物和镁等重要膳食矿物质的浓度降低50%。此外,家用RO的平均总水费是自来水费用的三到四倍。在生命周期评价中比较了两种不同的情景。第一种情况是传统饮用水处理厂的安全饮用水(情况1),而第二种情况是家用反渗透系统的水(情况2)。结果表明,情景2中非生物耗竭、水体酸化、富营养化、全球变暖和臭氧耗竭对环境的影响高于情景1。研究结果推断,与家庭RO相比,自来水公司应该鼓励公民使用传统自来水,这是一种更便宜、更环保的选择。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.10
自引率
11.80%
发文量
58
审稿时长
16 weeks
期刊介绍: The Journal of Water, Sanitation and Hygiene for Development is a peer-reviewed journal devoted to the dissemination of high-quality information on the science, policy and practice of drinking-water supply, sanitation and hygiene at local, national and international levels.
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