Organic nitrogen removal process to be developed under new partnership

April 21, 2010
LITTLE ROCK, AR, April 21, 2010 -- ThermoEnergy and F. R. Mahony & Associates will jointly develop a new biological/physical-chemistry process to remove nitrogen from industrial and municipal wastewater...

LITTLE ROCK, AR, April 21, 2010 -- ThermoEnergy Corporation announced today that the Company and F. R. Mahony & Associates have signed a non-exclusive Memorandum of Understanding to jointly develop a new biological/physical-chemistry process to remove nitrogen from industrial and municipal wastewater.

The new process combines ThermoEnergy's Ammonia Recovery Process with F. R. Mahony's biological AOx process to remove and recover nitrogen as ammonia. The process, called BioCAST™ can achieve greater than 85% reduction in total nitrogen while recovering the majority of the nitrogen in the form of ammonia. The process is suited for municipal and industrial wastewaters, landfill leachate, agricultural wastewater and many other high strength waste streams. The BioCAST process has the potential of treating high volumes of water with a small footprint (approximately 1/6 that of a wholly biological process) and high efficiency significantly reducing the costs of nitrogen reduction as well as reducing the emission of nitrous oxide, a green house gas. AECOM, a ThermoEnergy partner, will be also participating in the research by providing scientific and engineering peer review.

"ThermoEnergy is pleased to be partnered with F. R. Mahony on this groundbreaking research," said Dennis C. Cossey, Executive Chairman of ThermoEnergy. "BioCAST has the potential of providing a low cost solution to some of today's difficult wastewater problems."

"The combination of the two technologies addresses the need for sustainable, economical solutions to the increasingly stringent effluent regulations being imposed today. BioCAST™ is the future of wastewater treatment where the best of biological processes are combined with the best of physical/chemical treatment," said Dr. Phillip Pedros, Director of Engineering for F. R. Mahony. "Our partnership with ThermoEnergy and its unique Ammonia Recovery Process will open new ways to look at old problems."

The ARP process is one of ThermoEnergy's premiere patented technologies, whose economic and environmental performance provide significant advantages over conventional ammonia removal technologies. When the City of New York recently published its intent to enter into a sole source contract with ThermoEnergy on the ARP project, the City described the ARP process as follows: when compared to currently employed biological treatment processes, ARP appears to be one of the more efficient means of removing ammonia from centrate, thus minimizing the release of nutrients to the surrounding waters of NYC, preventing fugitive emissions of Greenhouse gases released by wastewater treatment and consuming less available power.

About F. R. Mahony
F. R. MAHONY & ASSOCIATES Inc. (FRMA) started in 1964 as manufacturers' representatives of water and wastewater treatment systems serving the six New England states. Today the company also includes a manufacturing and research division dedicated to the development of wastewater and water treatment technologies. FRMA provides innovative solutions and equipment to our clients with an emphasis on technologies that provide sustainability in terms of resources and the environment. The company has approximately 25 employees and is located at 273 Weymouth Street, Rockland, Massachusetts, and has a second office in Southbridge, Massachusetts.

AECOM (NYSE:ACM) is a global provider of professional technical and management support services to a broad range of markets, including transportation, facilities, environmental, energy, water and government. With approximately 45,000 employees around the world, AECOM is a leader in all of the key markets that it serves. AECOM provides a blend of global reach, local knowledge, innovation, and technical excellence in delivering solutions that enhance and sustain the world's built, natural, and social environments. A Fortune 500 company, AECOM serves clients in more than 100 countries and had revenue of $6.1 billion during its fiscal year 2009. Further information on AECOM can be found on their website:

About ThermoEnergy Corporation
ThermoEnergy is an integrated technologies company engaged in the worldwide commercialization of patented and/or proprietary municipal and industrial wastewater treatment and power generation technologies. The wastewater treatment technologies are consolidated in its subsidiary, CASTion Corporation ("CASTion"), a fast growing developer and manufacturer of innovative, custom-designed wastewater treatment and chemical recovery systems for industrial and municipal clients. The Company designs, assembles and ships its waste water treatment systems from a 20,000 square foot fabrication works located in Worcester, Massachusetts. The power generation technologies are consolidated in a subsidiary, ThermoEnergy Power Systems, LLC ("TEPS"). The economic and environmental matrix of the Company's technologies represents a paradigm shift in key infrastructure industries. The Company currently has offices in Little Rock, AR, Arlington, VA, Jacksonville, FL and New York, NY. Additional information on the Company and its technologies can be found on its website at, or for wastewater treatment specific information.


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