Search Result
Technology Innovation News Survey Feed (RSS)
INNOVATIVE APPLICATIONS OF SUBGRADE BIOGEOCHEMICAL REACTORS: THREE CASE STUDIES
Gamlin, J., J. Cox, and A. Castor
Remediation 29(2):33-43(2019)
Three case studies are presented describing innovative subgrade biogeochemical reactors (SBGR) configurations recently developed and tested. The first case study addresses a site with groundwater deeper than 30 ft where an SBGR column configuration reduced TCE groundwater concentration from 9,900 µg/L to <1 µg/L within 15 months. The second SBGR is a recirculating trench configuration demonstration project supporting remediation of a 5.7-acre TCE plume, which has significant surface footprint constraints due to the presence of endangered species habitat. The third SBGR, constructed with a new amendment mixture, reduced groundwater contaminant concentrations in a petroleum hydrocarbon source area by >97% within about 1 year. New SBGR configurations that are planned for treatment of additional classes of contaminants are summarized as well as a discussion describing research being conducted to further understand and optimize treatment mechanisms within SBGRs. This article is Open Access at https://onlinelibrary.wiley.com/doi/epdf/10.1002/rem.21586
Remediation 29(2):33-43(2019)
Three case studies are presented describing innovative subgrade biogeochemical reactors (SBGR) configurations recently developed and tested. The first case study addresses a site with groundwater deeper than 30 ft where an SBGR column configuration reduced TCE groundwater concentration from 9,900 µg/L to <1 µg/L within 15 months. The second SBGR is a recirculating trench configuration demonstration project supporting remediation of a 5.7-acre TCE plume, which has significant surface footprint constraints due to the presence of endangered species habitat. The third SBGR, constructed with a new amendment mixture, reduced groundwater contaminant concentrations in a petroleum hydrocarbon source area by >97% within about 1 year. New SBGR configurations that are planned for treatment of additional classes of contaminants are summarized as well as a discussion describing research being conducted to further understand and optimize treatment mechanisms within SBGRs. This article is Open Access at https://onlinelibrary.wiley.com/doi/epdf/10.1002/rem.21586
The Technology Innovation News Survey welcomes your comments and
suggestions, as well as information about errors for correction. Please
contact Michael Adam of the U.S. EPA Office of Superfund Remediation
and Technology Innovation at adam.michael@epa.gov or (703) 603-9915
with any comments, suggestions, or corrections.
Mention of non-EPA documents, presentations, or papers does not constitute a U.S. EPA endorsement of their contents, only an acknowledgment that they exist and may be relevant to the Technology Innovation News Survey audience.
