ETTL is equipped to carry out almost all types of site remediation, especially as part of Phase III environmental site assessments, where steps are taken to restore sites to an environmentally acceptable condition. Even so, in the review below of ETTL's capabilities in the area of site remediation, we are concentrating especially on its innovative bioremediation technique.
During recent years, ETTL has participated in privately financed research and development, as well as practical commercial application, of bioremediation, a process which uses microorganisms to transform hazardous substances into less toxic or non-toxic compounds. As a process, bioremediation has been recognized by the EPA as an attractive alternative to conventional methods of hazardous waste remediation.
ETTL's work has resulted in an innovative approach to biological evaluation and biosystem design. The process harvests microbial agencies from the contaminated site itself, apprises their effectiveness at remediating the specific contaminants found at the site, multiplies them in the laboratory, and reintroduces them, along with selective nutrients and surfactants, back into the site (or into removed contaminated soil) to swiftly and economically remediate it. The above sketch, despite its apparent levity, quite effectively denotes the microbial activity that takes place.
ETTL's engineering staff can furnish bioremediation project designs using this technique that will produce efficient, cost-effective clean-up of a variety of media, including contaminated aquifers, waste lagoons, and chemically contaminated soil. The approach integrates basic research, engineering design, and environmental and geotechnical laboratory services, along with consultation/evaluation. Actual remediation is done either by directly treating contaminated soil (or other site elements) in situ, or by treating contaminated soil ex-situ and then returning it to the site, or elsewise disposing of it. The table below will lead you to case histories describing various of these approaches. Experience has shown that ETTL's approach not only is innovative, but provides an attractively economic, highly efficient and swift way to remediate contaminated sites.
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Microphotographs |
Treating Contaminated Soil In-situ |
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Treating Contaminated Soil Ex-situ on Kenai Peninsula - Two Case Histories |
Briefs of Other ETTL |
The person to contact at ETTL for in-depth information
about Bioremediation and Site Remediation Services in general is
Steve Kennedy