Wednesday, January 20, 2016

Different methods of filtering and purifying drinking water

Source Of The Article ::http://www.aviva.ca/article.asp?articleid=131

Water Purification and Treatment Technologies

A comprehensive look at the different methods of filtering and purifying drinking water.
The drinking water treatment technologies used in the majority of systems include one or more of the following methods or media types:
• Sediment Filters - Ranging from 1 to 20 microns are normally used as a prefilter to protect and extend the life of other filters.
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Activated Carbon, including Granulated Activated (GAC), Carbon Block, and Catalytic Carbon – Standalone, or combined with other technologies to remove chlorine, chloramines, VOCs, MTBE, and a wide range of contaminants including lead and mercury.
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Water Softeners – Used to soften "hard" water using ion exchange technology that exchanges magnesium and calcium with sodium or potassium.  Water softeners are not designed to purify water that is microbioligically unsafe.
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BASF ATS Media  – Home systems, usually combined with activated carbon.
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Steam Distillation – Systems for home, business and commercial use.
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Reverse Osmosis (RO) - Systems for home, business and commercial use.
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Deionization – Not recommended for drinking water.
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Ozonation – Nature’s natural sterilizer.
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KDF Media – Advanced zinc-copper alloy with the widest range of contaminant removal.  Usually combined with Granulated Activated Carbon.
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Ceramic – Alternative to germicidal UV-C for filtration of bacteria, etc. 
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Activated Alumina – Specifically designed to remove fluoride and arsenic by adsorption.
• Bone Char – The best material for removing fluoride. Bone Char also removes chlorine, heavy metals and radioactive isotopes. For this reason, it is placed after a chlorine adsorption filter in all OPUS systems, to ensure maximum efficiency for adsorbing fluoride.
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Ultraviolet Germicidal Irradiation (UV-C) - To disinfect microbioligically unsafe water.
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Ultra-Filtration (UF) - Ultra Filtration uses membrane technology to reject contaminants from 0.01 to 0.2 microns. UF is effective in the removal of bacteria, pyrogens, high molecular weight dissolved solids and other water contaminants without removing healthful minerals.
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Bioceramic Water Amplification (BCWA) –Technically not a filter, BCWA improves the health promoting qualities of water by increasing alkalinity, oxygen, active hydrogen ions and healthful minerals, while lowering the ORP (Oxidation Reduction Potential), giving water antioxidant properties. BCWA is available as an inline filter that can be added to an existing water treatment system, integrated into a drinking glass (Alkalark) to treat individual glasses of water, and as Balance Water Sticks designed to be inserted into your drinking bottle.

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