Developing Cost Effective Treatment of Drinking Water for Use in Rural Areas
Journal Title: Journal of Medical Science And clinical Research - Year 2017, Vol 5, Issue 11
Abstract
Use of ultraviolet radiation for purification of drinking water is a known method since many years. This technology is very convenient and effective, as it doesn’t alter the taste of water neither requires the need of adding chemicals into the water. Ultraviolet wavelength ranges from 250-260nm.The optimum microbial killing efficiency (germicidal effect) of UV radiation is seen at 254 nm wave lengths, hence selection of appropriate UV wavelength is very important. The main aim of the study was to develop a cost effective technology for the treatment of drinking water suitable for rural population. In this study, an UV water treatment unit was developed to treat the drinking water to kill all the microorganisms present in it, thus making the water sample free from disease causing pathogenic organisms. This ultraviolet chamber consisted of ultraviolet light, water storage tank and tap. The main advantage of this UV treatment unit is its low cost and easy handling. The batch experiments were carried out for water sample of 5litres, 10 litres 15 litres and 20 litres. The destruction time of these were 660, 780, 1020 and 1200 seconds respectively. The dosage of ultraviolet radiation required to kill all the pathogenic bacteria in the water sample was calculated as 0.3432, 0.4056, 0.5304, 0.624 W/cm2 respectively. From this study, it was concluded that fabricated UV treatment chamber is economical and affordable for use by the rural population.
Authors and Affiliations
Dr S. Soumya
Keywords
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