News Release – October 4, 2011

Media Relations Contact

Marc Bane: 978-443-2378

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Investor Relations Contact

Thomas Walsh: 212-398-3486

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European Contact

Pieter Teeuwen + 31 (0) 611012092

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ThermoEnergy Partners with ProfiNutrients to Introduce Cost-Effective Ammonia Recovery System to European Biogas and Municipal Wastewater Treatment Market

ThermoEnergy targets the 27 EU economies that will be forced to make significant investments in their water treatment infrastructure to comply with wastewater nitrogen/ammonia treatment regulations by 2015.

Worcester, MA, September 29, 2011 --ThermoEnergy Corporation (OTCBB:TMEN), a leading supplier of wastewater recovery technology and systems, announced that the ProfiNutrients BV will me marketing the company’s ThermoEnergy ARP™ system in Europe. ThermoEnergy ARP is a technology for high-efficiency ammonia removal at biogas and municipal wastewater treatment plants. Based in The Netherlands, ProfiNutrients is an engineering firm specializing in the removal of nutrients and minerals from wastewater, sewage, sludge, slurry and gas.

ProfiNutrients will also be promoting the ThermoEnergy ARP system used in combination with a struvite recovery system from Multiform Harvest Inc. Multiform Harvest Inc. is a private company based in Seattle, Washington. The company has developed a patented struvite recovery technology that captures up to 80% of excess phosphorus and 20% of nitrogen from wastewater and converts it into a slow-release ammonium phosphate fertilizer. The ThermoEnergy ARP system will then remove up to 90% of the remaining ammonia/nitrogen from the centrate/filtrate side-stream and recover it as ammonium sulfate fertilizer.

“In combination, these two systems can solve the problem of nitrogen and phosphate loading into European waterways while producing two valuable fertilizers for sale that will subsidize operational costs,” said Pieter Teeuwen of ProfiNutrients.

“Phosphate and nitrogen in waste water from industry, agriculture, and animal waste is a widespread and serious problem in many areas of Europe,” said Matt Wilson, Business Development Director at Multiform Harvest Inc. “These nutrients contribute to the eutrophication of more than 50% of Europe’s rivers and lakes, threatening their ecosystems.”

“A groundbreaking European Nitrogen Assessment (ENA), conducted by 200 experts from 21 countries and 89 organizations, estimates that the annual cost of damage caused by nitrogen across Europe is €70 to 320 billion ($100-460 billion),” said Cary Bullock, President and CEO of ThermoEnergy Corporation.   “Additionally, a Frost and Sullivan study estimates the annual market for wastewater treatment equipment for nitrogen removal in Europe alone, is in the multibillion dollar range.”

“ThermoEnergy's ARP process uses physical rather than biological chemistries to recover and convert ammonia into salable fertilizers,” said Bullock, “In addition to being extremely cost competitive, the ARP process is easy to maintain, has a very small footprint, and can handle varying conditions much more readily than biological systems for ammonia recovery.”

About ThermoEnergy Corporation

Founded in 1988, ThermoEnergy, is a diversified technologies company engaged in the worldwide development, sales, and commercialization of patented and/or proprietary municipal, industrial, and agricultural wastewater treatment and clean power generation technologies. Additional information on the Company and its technologies can be found on its website at www.thermoenergy.com.

About ProfiNutrients BV

Based in The Netherlands, ProfiNutrients specializes in removing and recovering nutrients and minerals from organic waste such as sewage, sludge, slurry and gas in ways that reduce costs and create new revenue opportunities. ProfiNutrients’ provides consulting and project management for both pilot projects and full-scale installations. ProfiNutrients will be able to realize synergetic advantages by using ThermoEnergy and Multiform Harvest patented techniques in one and the same application.

Visit www.profinutrients.nl.

About Multiform Harvest Inc.

Multiform Harvest Inc. is a private company based in Seattle, Washington, which has developed a patented technology that recovers excess phosphorus and nitrogen from wastewater and converts it into a premium, slow-release fertilizer. The technology allows wastewater treatment plants to meet nutrient discharge limits more cost-effectively than other technologies, and provides a sustainable, domestic supply of phosphorus, a diminishing world resource. Visit www.multiformharvest.com

THIS PRESS RELEASE INCLUDES STATEMENTS THAT MAY CONSTITUTE "FORWARD LOOKING" STATEMENTS, USUALLY CONTAINING THE WORDS "ESTIMATE", "PROJECT", "EXPECT" OR SIMILAR EXPRESSIONS. FORWARD LOOKING STATEMENTS INHERENTLY INVOLVE RISKS AND UNCERTAINTIES THAT COULD CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM CURRENT EXPECTATIONS. BY MAKING THESE FORWARD LOOKING STATEMENTS, THE COMPANY UNDERTAKES NO OBLIGATION TO UPDATE THESE STATEMENTS FOR REVISIONS OR CHANGES.

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