Water Filtration Methods: What they do and why you might choose them.

Water Filtration Methods: What they do and why you might choose them.

Most Water filter reviews will point out that while any filter will make water cleaner, there are advantages and disadvantages to most of them. Hopefully this summary and review will help you decide the method of filtration that will work best for you, then you can decide the type of filter to choose.

1) Mechanical Filtration:
This is simply having a barrier that has holes smaller than what it is that you want to filter out. This method of filtration removes tiny particles that are suspended in the water such as dirt, silt, sand, sediment, rust and other un-dissolved substances. As water passes through the media the particles are trapped or blocked and effectively removed from your water

2) Micro-Pore Membranes
A type of Mechanical filtration, this simply employees membrane barriers with very small pore size (often .3 to 1.0 micron) so that they can remove certain contaminants such as cysts, micro organisms and bacteria such as Giardia or E. coli which are too large to pass through.

3) Absorption by Activated Carbon and Carbon Block Filtration:
Activated carbon absorbs organic substances that cause your water to smell and taste bad. It also has the ability to remove pesticides, chlorine and its byproducts. While it is one of the best water filters to remove organic compounds it can still leave metals or other scale-causing contaminants.

4) Oxidation-Reduction (Redox)
Oxidation/Reduction Technology is a process where by electrons from one atom or molecule are transferred to another. The electrochemical process removes the heavy metals like aluminum, cadmium, lead and chromium. These metals are attracted to the media, very similar to a magnet.

5) Muti-stage Ultra Filtration
Most water filter reviews will say that a multi-step system is the best way to produce the cleanest, purest water. It just makes sense that running the water through more than one filter or cartridge type, such as micro- pore, carbon block, ionization or reverse osmosis, ensures that the end result is better than if just one step was involved.

6) Reverse Osmosis Filtration
Reverse Osmosis water filters involves pushing water through a membrane with extremely small pores under high pressure. In doing so, much of the harmful compounds are kept out (as they can\'t pass through the pores. They do a pretty good job of eliminating contaminants, but they also remove essential minerals that the human body needs to stay in optimal health.

7) Distillation
The process is boiling the water, leaving behind inorganic contaminants, and then cooling and condensing it back in its liquid, drinkable form. Most bacteria are destroyed during the boiling process. Distillation also removes many of the beneficial minerals from the water as well Traces of minerals like sodium and potassium are good for your health and they improve the taste of your beverages.

8) Fluoride and Heavy Metal Filters
Fluoride, Lead and Arsenic filters utilize high capacity synthetic absorbent media that is highly selective for those elements. Heavy metals can also be removed with Re-Dox technology. Oxidation/Reduction Technology is a process where by electrons from one atom or molecule are transferred to another The electrochemical process removes the heavy metals like aluminum, cadmium, lead and chromium

Article Source: http://www.diyarticlelibrary.com

Article is written by Roger Sample Oxidation/Reduction Technology and Water filtration methods expert.

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