Quality Water Filters 4 You Posting Page
Tuesday, April 20, 2010
It has been suggested by many organizations that there are over 2000 known toxins and contaminants found in water. Not all areas have all of these contaminants in their water, but virtually no area on planet Earth has totally pure water either. This article looks at a few of the more common contaminants and how those can be removed from water.
Two of the most common parasitic contaminants often found in water around the world are Giardia and Cryptosporidium. These are mentioned first in this list as they are known to have caused outbreaks in recent years and are considered two of the most dangerous contaminants found in both surface and ground water. To remove or kill Giardia or Cryptosporidium, you can use any of the following: distillation, reverse osmosis, ceramic filters, absolute one micron water filters, ultraviolet light, and water filters that have been certified for cyst removal.
For other types of bacteria and viruses, you can use water distillation, reverse osmosis, ultraviolet light, and chemical disinfection such as chlorine.
Arsenic is normally removed from drinking water though the use of adsorptive media filters.
Disinfection byproducts (often caused by the use of chlorine) can be removed from drinking water through the use of point-of-entry water filters, adsorptive media, water distillation, aeration, carbon filtration, and reverse osmosis.
Lead is most often removed from drinking water through reverse osmosis, distillation, and some carbon filters (you must check on this before you purchase your filter if you have lead in your water).
Nitrates can be removed from drinking water through the use of: water distillation, reverse osmosis, and the ion exchange process.
Pesticides can present health issues for millions of people, especially for those who live in rural areas or who live downstream from agricultural regions. Pesticides can be found in both surface water and ground water. Carbon filters can be used to remove pesticides but you must check with the water filter vendor in order to get the proper filter. Not all carbon filters will remove pesticides, so make sure you get the right type.
Radium can be isolated or removed from water through the use of water distillation, ion exchange, or reverse osmosis.
Radon is most often found in ground water, but it can also be found in surface water as well. Activated carbon filters and aeration have both been proven to be effective in removing radon from water.
In the event of a water emergency, one can always boil water to remove many contaminants. Generally, you want to boil water for at least one minute. If you are above sea level, boil for three minutes.
by: Chris Tracey