Arsenic removal from water is critical due to its link to cancer of the bladder, lungs, skin, kidney, nasal passages, liver and prostate. Non-cancer effects can include thickening and discoloration of the skin, stomach pain, nausea, vomiting, diarrhea, numbness in hands and feet, partial paralysis and blindness. Removing arsenic from water from your home is paramount, particularly if levels are detected above the EPA limits.
There are different forms of arsenic in water, the determination of which will dictate the most effective technology to remove arsenic from your water. You will need an accurate water test from a certified testing lab to reveal which type of arsenic is in your supply. Arsenic is typically identified as ASIII (Arsenic Three) or ASV (Arsenic Five). Again, the appropriate water technology and approach will be determined by these findings.
The EPA does not regulate private drinking wells; the responsibility lies with you for testing and monitoring. For more detail on removing arsenic from water, see our Water Technology Magazine Arsenic removal article.
Arsenic removal from well water can be complicated, but it can be achieved with proven technologies. The exact technology or combination of technologies is determined by the specific analysis of your source water. Reverse osmosis, Ion exchange with arsenic-specific media, coagulation and oxidation are some available technologies used to achieve the desired arsenic removal from water. To remove arsenic at the point of entry into the home, tanks containing arsenic-specific media similar to that pictured above are installed. The media inside the tanks will “grab” the arsenic out of the water. For “point-of-use” drinking water, a reverse osmosis system can be installed to remove the arsenic.
There are two forms of arsenic in well water: Arsenic III and Arsenic V. The design of the system will be determined by the amount of arsenic detected, the type of arsenic, the projected volume of water usage and levels of other contaminants detected. An analysis of your water test results from a certified lab will determine the appropriate method to effectively remove the arsenic. An effective, safe and reliable system can be installed to put your mind at ease.
It is equally important that the system be plumbed in correctly and maintained properly with appropriate testing intervals.
For more information on Arsenic in water, see Arsenic Facts
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