pratiyogita darpan hindi Published this article page no 113 BAN ON RO SYSTEMS Why in news? Recently the Union Ministry of Environment Forest and Climate Change (MoEFCC) has issued a draft notification that seeks to ban membranebased water purification systems (MWPS) primarily reverse osmosis (RO) in areas where the water supplied meets norms. Background The National Green Tribunal (NGT) in May 2019 instructed the Reverse Osmosis Osmosis is the movement of water that occurs when two compartments are separated by a semipermeable membrane whereby water moves from an area of low solute concentration to an area of high solute concentration. Reverse osmosis (RO) is a process by which pressure is used to force water through a tight membrane that blocks passage of solute particulate matter bacteria and endotoxins among other things to produce pure water. Benefits of RO Safer drinking water As it removes salt contaminated particles and other impurities in the water. Better taste Due to removal of chemicals and debris in the water. Relatively low energy usage. 70 MoEFCC to notify prohibiting the use of drinking water prepared through RO systems in areas where the amount of total dissolved solids (TDS) was less than 500 milligramlitre (mgl). o Ban was ordered on the grounds that RO wasted water and that in the process of removing salts they often deprived drinking water of essential salts. It also asked the ministry to lay down a requirement for RO systems manufacturers that the recovery of treated water should be at least 60 per cent as against 20 per cent prescribed by the Bureau of Industry Standards (BIS) in 2015. Gradually the recovery rate should be enhanced to 75 per cent. Concerns Related to RO systems in India pratiyogita darpan hindi buy.
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