Deployment of Special Microoganisms for InSitu Remediation of Chlorinated Solvent-Contaminated Aquifers

Period of Performance: 09/21/1995 - 09/21/1997


Phase 2 SBIR

Recipient Firm

Envirogen, Inc.
Princeton Research Center, 4100 Quakerbridge Rd
Lawrencville, NY 08648
Principal Investigator


The U.S. Department of Defense Phase II SBIR proposal involves a field demonstration of in situ bioremediation of chlorinated solvents in a contaminated aquifer. In situ bioremediation is a viable technology that facilitates the complete destruction of contaminants, reduces exposure risks, and is a cost effective alternative to traditional remediation technologies. During Phase I of this project several specialized TCE-degrading microorganisms were developed that do not adhere to aquifer materials, thereby allowing them to penetrate aquifers to the source of contamination. These naturally occurring specialized organisms require no toxic co-substrates to induce degradative activity, and contain high energy storage polymers allowing them to degrade large amounts of TCE over extended periods of time while reducing competition from indigenous microorganisms. The organisms destroyed TCE in a variety of contaminated aquifer materials. They will serve as biocatalysts during the insitu demonstration. During Phase II, predictive models and cost estimates will be developed to allow rapid commercialization of the technology. Parameters that effect the efficiency, costs and treatment time of the technology will be evaluated. Successful development of this technology will provide an economical and cost effective remediation solution applicable to thousands of public and private sites worldwide.