Water Treatment Systems

p>Water is a vital necessity for mankind--it is usedpower to kill the bacteria. UV filters use this
for drinking, cooking, bathing, washing clothes andeffectively in the treatment of water. However, UV
utensils, gardening, pets, cleaning, agriculture, andfilters do not make the water soft or remove the
boilers and water heaters. Water is almost invariablyodors.
contaminated with acidity, salts, metals, color, odor,The Reverse Osmosis (RO) system uses
taste, and other organic pollutants like insecticides andsemi-permeable membranes for the purification of
herbicides and bacteria and microbes. Hence, onewater. They filter out almost all unwanted impurities
must resort to purification before consumption.like magnesium, calcium, iron, and smelly compounds
Water softener systems are ion-exchange resinsand bacteria. This process gives only about 10% of
that replace the calcium and magnesium salts presentthe input water. The domestic RO units usually
in hard water with sodium ions. The soft water thuscontain a five-stage purification process: a pre-filter, a
obtained is good for bathing and for use insediment filter, a bactereostatic carbon filter to
dishwashers and washing machines. Soda ashremove color and odor, an ultra filtration membrane
neutralizes the acidity of water and is widely used forto remove bacteria and viruses, and a polisher to
the purpose. When the water is alkaline, one resortsensure removal of bacteria completely.
to citric acid to neutralize the alkalinity.One should test the input water and take appropriate
Activated carbon filters are widely used for themeasures for purification. Also, tests should be carried
treatment of water with strong smell of rotten eggsout at regular intervals to ensure the systems
or garlic. Activated carbon filters work based on thefunction as per specifications.
principle of adsorption. Ultraviolet radiation has the