Seeking Trial Participants for New System to Treat Drinking Water Disinfectant By-Products

Seeking Trial Participants for New System to Treat Drinking Water Disinfectant By-Products

Apr 29, 2014

Disinfecting drinking water is an absolute must, but what can be done about the harmful trihalomethanes (THMs) by-products?

Chlorine is an effective disinfectant used to treat drinking water in many parts of the world.  However, chemical compounds called THMs are formed as a by-product when chlorine is used to make water potable.  Studies have shown adverse health effects from THMs and as a result, many governments, including the US EPA, regulate THM concentration in treated water.  Recently, the EPA reduced the permissible amount of THMs in treated drinking water from 100 parts per billion to 80 parts billion.  Other governments are following suit and cracking down.  With increasingly strict regulations regarding THM levels in all areas of water distribution systems, methods for reducing those levels have become even more urgently required.

Dr. Robin Collins of the Environmental Engineering Research Group at the University of New Hampshire has developed two patent pending techniques to safely and cost- effectively remove harmful THMs from both (1) water storage tanks and (2) remote localized regions of a water distribution network without expensive infrastructure improvements. 

  1. Water Storage Tanks: 

    THMs are removed from water within a storage tank by spraying recycled water through a configuration of multiple showerheads at an optimized flow rate, spray angle, water volume, and distance from the water surface. A specific implementation can be customized to fit any storage tank based on our patent pending process.
    Spray Aeration
  2. Localized Remote Regions of a Water Distribution Network

    THMs are removed from localized regions of a water distribution network by optimizing water flow through a pressurized and specially designed reactor and venting system configured to strip THMs from the water supply.  Our patent pending reactor design can easily replace a small section of pipe in remote regions of a water distribution.
    Spray Aeration

We are currently looking for municipalities or consultants interested in implementing a live, compliant, and cost-effective test site.

Tristan Carrier
Licensing Manager, UNHInnovation

For more information on participating in a trial deployment, please contact Tristan Carrier at, 603-862-2022. 

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