Srinivasan R., Pandit S. A., Khatei G., Karunakara N., Kumara K. S., Riotte Jean, Moger H., David P. A., Jindal M., Gowrisankar G., Ramkumar K. D. (2022). Reverse osmosis units in groundwater based public water supply system in rural eastern Karnataka, India : an analysis. Current Science, 123 (12), 1493-1498. ISSN 0011-3891.
Titre du document
Reverse osmosis units in groundwater based public water supply system in rural eastern Karnataka, India : an analysis
Srinivasan R., Pandit S. A., Khatei G., Karunakara N., Kumara K. S., Riotte Jean, Moger H., David P. A., Jindal M., Gowrisankar G., Ramkumar K. D.
Source
Current Science, 2022,
123 (12), 1493-1498 ISSN 0011-3891
Adequacy, eco-friendliness and desirability of continuation of reverse osmosis (RO) purification of groundwater for providing safe drinking water to villages in the have been studied in 15 villages in 4 districts of the state, where high fluoride and uranium contamination has been observed. The results indicate that: (i) except in Chitradurga district, there are an inadequate number of RO facilities; (ii) RO water consumption is far less than the minimum amount recommended for drinking by WHO; (iii) while the benchmark of the best performance for RO membranes is > 99%, the RO units in use show an average fluoride and uranium rejection percentage of 92.6 and 95.1 respectively; and (iv) similar to almost all RO units, the installed ones are also wasting water in the water-deficient eastern Karnataka and discharging concentrate with a higher percentage of contaminants into the environment. Better management of RO units and RO concentrate is required.
