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EVALUATION OF DEMONSTRATED AND EMERGING TECHNOLOGIES FOR THE TREATMENT OF CONTAMINATED LAND AND GROUNDWATER (PHASE III) - 1999 SPECIAL SESSION ON MONITORED NATURAL ATTENUATION
Citation:
Kremer*, F. V. AND A. Sinke. EVALUATION OF DEMONSTRATED AND EMERGING TECHNOLOGIES FOR THE TREATMENT OF CONTAMINATED LAND AND GROUNDWATER (PHASE III) - 1999 SPECIAL SESSION ON MONITORED NATURAL ATTENUATION.
Description:
This report includes the papers presented at the NATO/CCMS Pilot Study Meeting in Angers, France, May 9-14, 1999, for the special session on Monitored Natural Attenuation (MNA). This is the Phase III of the Evaluation of Demonstrated and Emerging Technologies for the Treatment and Cleanup of Contaminated Land and Ground Water. Internationally, overall, there is an increased understanding of the naturally-occurring transformation processes to decrease the toxicity, mobility and/or volume of hazardous contaminants. This understanding is opening the door for some regulatory agencies, internationally, to begin to consider how MNA can play a role in site remediation activities. For those contaminants which are amendable to biodegradation, the key question is the rate at which these contaminants can be degraded. The rate is determined by a number of factors. To determine whether MNA is appropriate in these circumstances depends upon whether the appropriate environmental conditions are sufficient to sustain adequate rates of degradation to ensure compliance with the cleanup goals within a given period of time. The most prevalent use of MNA is focused on petroleum hydrocarbons, solvents and metals. From a research venue, in the laboratory and in the field, work is continuing to more fully understand factors such as the microbiology, hydrogeology and geochemistry's role in attenuating a variety of contaminants.