Researching Safer, More Cost-Effective AOPs

National Science Foundation Grant Advances Investigation of On-site Generated Aqueous Chlorine-Based Technology

(NEW YORK, NY – March 9, 2011) – Hazen and Sawyer has been selected to provide study design and engineering support for a National Science Foundation Small Business Innovation Research Grant investigating the use of advanced oxidation processes (AOPs) generated by a combined ultraviolet light(UV)/chlorine process.

AOPs are a set of advanced chemical water treatment procedures that generate hydroxyl radicals, extremely powerful oxidizing agents. AOPs can be highly effective at removing organic chemicals such as Endocrine Disrupting Compounds (EDCs), Pharmaceutical and Personal Care Products (PPCPs) and Volatile Organic Compounds (VOCs).

AOPs typically utilize hydrogen peroxide or ozone as the chemical component of the process, both of which are extremely hazardous substances for operators. This project advances continuing work by the MIOX Corporation to develop an AOP using aqueous chlorine generated on-site. The aqueous chlorine AOP is expected to be safer and more cost-effective than the more-common peroxide-based UV/AOP system. UV/chlorine-based AOPs also do not require the use of quenching agents required to remove residual peroxide from UV/peroxide AOPs; generating the chlorine component on-site eliminates the cost and hazards of transporting the chemical.

The National Science Foundation (NSF), an independent federal agency, was created by Congress in 1950 and is tasked with keeping the U.S. at the leading edge of discovery in a wide range of scientific areas. In addition to funding research in the traditional academic areas, the agency also supports “high-risk, high-pay-off” ideas, novel collaborations, and numerous innovative projects. NSF research is fully integrated with education so that today’s revolutionary work will also be training tomorrow’s top scientists and engineers.

Since our founding in 1951, Hazen and Sawyer has focused on two things: providing safe drinking water and controlling water pollution. Our range of services encompasses the planning, design, and construction management of water and wastewater-related projects – from clean water treatment, storage, and distribution to wastewater and stormwater collection, treatment, and reuse.

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