If tap water meets BIS norms, RO systems will be banned

  • IASbaba
  • February 7, 2020
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If tap water meets BIS norms, RO systems will be banned

Part of: GS Prelims and GS Mains II – Health

In news:

  • Union Environment Ministry has published a draft notification that effectively prohibits users from installing membrane-based water purification, (RO), systems in their homes if the water has been sourced from a supply that meets the Bureau of Indian Standards’ (BIS) drinking water norms.

From Prelims Point of View:

Membrane-based water purification (Osmosis) :

  • Osmosis is the naturally occurring tendency for two solutions of differing salinities to want to neutralize.  
  • Reverse Osmosis utilizes pressure to overcome the natural tendency and to force pure water through a semi-permeable membrane while concentrating salts and other dissolved solids on the feed side of the membrane.  
  • It is commonly used to  generate clean drinking water from brackish groundwater.

Bureau of Indian Standards:

  • National Standard Body of India for the harmonious development of the activities of standardization, marking and quality certification of goods.
  • BIS has been providing traceability and tangibility benefits to the national economy in a number of ways by:

Providing safe reliable quality goods.

Minimizing health hazards to consumers.

Promoting exports and imports substitute.

Control over proliferation of varieties etc through standardization, certification and testing.

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