Nanotechnology to remove arsenic from water: latest research


February 4th, 2009

There have been many claims that nanotechnology will be able to remove arsenic from drinking water yet specific products are only just beginning to appear on the market.   One such product was reported on the A to Z of nanotechnology web site recently.

“The U.S. Department of Energy’s Idaho National Laboratory and Water Technology Group Inc., (WTG) Harvard, Mass., signed a licensing agreement (31 January 2009) that provides exclusive rights to commercialize the Nano-Composite Arsenic Sorbent (N-CAS) that will improve the ability to remove arsenic from contaminated water supplies and is seven times more effective than previous arsenic removal technologies.

In 2006, the Environmental Protection Agency standards reduced the maximum allowable concentration of arsenic in drinking water from 50 parts per billion (ppb) to 10 ppb creating an expensive dilemma for 4,000 American municipalities and nearly 14 million homeowners whose water resources now exceed the new limits. N-CAS will provide an economical method to treat water supplies and meet these new standards.”

It is encouraging to note that Troy Tranter, who led the team’s research efforts, is reported as saying, “This technology will aid millions of Americans and more than 70 million people around the globe who are exposed to dangerous arsenic concentrations in their drinking water.”    However, this is unlikely to happen without a major initiative to spread the benefits of this technology to developing countries like Nepal and Bangladesh.   A key challenge now is for Troy Tranter and his team to find innovative ways of deploying the technology where it is most needed in the world.

3 responses to “Nanotechnology to remove arsenic from water: latest research”

  1. Paul olayinka Says:

    can you mail me the UN current standard for drinking water and does it tally with yours.

  2. riman Says:

    I am a student in kurdistan univercity, I requeir these articles, please send to me. thank you so much.

  3. Neil Philip Noble Says:

    The following articles should be of interest, some written by David Grimshaw.   

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