Arsenic and uranium in drinking water supplies
LayneRT is a hydrous iron oxide impregnated resin that efficiently binds arsenic and never needs backwashing. It is engineered in a single-column design to treat a full cold-water flow so no special low-flow faucet is needed. The POU system provides simple installation and comfortably fits under most sinks. Because system performance is tied to site-specific water chemistry, SolmeteXWater has integrated a comprehensive sampling program into the npXtra system to ensure continued performance. Chemists regularly analyze your customer’s water quality by sending them pre-paid sample kits.
In January 2006, the U.S. Environmental Protection Agency started enforcing the new arsenic limit of 10 parts per billion (ppb) in drinking water. The previous limit was 50 ppb. Since that date, there has been a flurry of activity in bringing selective arsenic media to the market.
Effective arsenic removal applications for water treatment
It has been estimated in a national arsenic occurrence survey of drinking water supplies that as many as 35 to 40% of U.S. public water systems have arsenic above the maximum contaminant level (MCL) of 10 parts per billion (ppb), and have co-occurrence of iron above the secondary MCL of 0.3 mg/L. This presents an interesting challenge for small systems, which may or may not have any treatment in place for either iron or arsenic to meet their respective MCLs.
Technology considerations for effective co-contaminant treatment
Determining and applying POE & POU for arsenic removal