Low Cost Method for Removal of Arsenic in Water

Arsenic is a deadly element that often finds its way into our water supply through natural deposits that leak into groundwater or industrial pollution. The Environmental Protection Agency currently regulates water supplies to contain no more than 10 parts per billion. However, some people believe that even this amount is too high. There are a number of solutions for those who worry about the chemical content of their water.

Biological

• Certain kinds of plants are remarkably good at absorbing toxic chemicals from soil. The most effective plant at absorbing arsenic in an environment is the brake fern. If your water comes from a municipal system you could lobby local government to plant brake ferns around the reservoir perimeter. Currently, most water treatment is done with chemicals; however, the addition of perimeter ferns can add a safeguard and further reduce environmental arsenic polluting the water supply. For those who get their water from a well, brake ferns can soak up the arsenic in your yard, helping reduce the quantities that leach their way into your water.

Chemical

• Chemicals are the most frequent method used to remove excess arsenic. In general this technique is used on a large scale or in the field in developing nations. Generally, removing arsenic involves first placing iron flakes into the water. The chemical reaction that causes the iron to rust also absorbs arsenic. Once the iron supplement has settled to the bottom as sediment, it can be filtered from the water.

Filtration

• Likely the most hassle-free way to remove arsenic from your day-to-day drinking water is through the use of a faucet filter. Unfortunately, not all filtration systems have been approved to reduce arsenic levels. Make sure your filter has a NSF (National Sanitation Foundation) seal of approval.