Wednesday, 24 April 2013

Different Methods Employed for Purifying Water


Let us explore different techniques used for purifying the water and their aptness. These techniques basically depend on the source of water, the nature and amount of impurities in it, and its TDS levels.
First method is the Reverse Osmosis method that is used to get rid of the dissolved solids of and over the size 0.0009-0.007 microns by means of a semi-permeable membrane. In addition to making the water pure, it is also desalinated and the TDS of water is decreased by about 90 percent. In case you are getting the water from borewell or the water supplied is salty and hard with TDS levels exceeding 500 mg/liter, RO water purifier is the best choice.
UV (Ultra Violet) purification is another technique that puts to use the UV rays of the sun for the purpose of purifying water. These rays are casted by a refined lamp, in fixed quantities. This technique destroys all water-borne, disease-causing germs and provides clean and sterilized drinking water by keeping the minerals present in the water intact. In general, the UV purifiers involve three or four purification phases, activated carbon cartridge and sediment filter being the most essential ones. These are ideal for the tap water that is pre-treated and has a normal taste.
Nanofiltration eradicates the dissolved solids from water that are of and greater than the size of 0.0009-0.007 microns. In addition to the solids, viruses and bacteria in the water are also removed. Another method of water purification is the Ultrafiltration in which the dissolved solids of the size 0.005-0.1 microns and more than this size are cleared away. Thus, taking into account your requirements, you must always buy the appliances like water purifier as well as gas stove and other home appliances.  

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