benzene remediation Articles
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China Case Study (In Situ Gas Thermal Remediation (GTR™))
Gas Thermal Remediation (GTR™) was recently used to successfully remediate benzene and chlorobenzene impacts in China. This was the first time in situ thermal remediation was used in the history of Chinese remediation efforts. In partnership with JSDDBS, GEO used its Thermal Conductive Heating (TCH) to remove contaminants from soil and groundwater at 100 degrees Celsius. The final ...
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Southern New Jersey - Guaranteed benzene remediation in soil and groundwater - Case Study
Project Summary TRS Group, Inc. (TRS) under contract with URS Corporation ( URS) and Resource Environmental, LLC (RELLC) conducted an electrical resistance heating (ERH) remediation of benzene at a former gasoline service station located in southern New Jersey, The project scope of work was contracted as a Guaranteed Fixed Price Remediation (GFPR) that included no rebound of benzene in ...
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Statistical analysis of main and interaction effects during the removal of BTEX mixtures in batch conditions, using wastewater treatment plant sludge microbes
Biodegradation has proved to be a versatile technique to remediate benzene, toluene, ethyl benzene and xylene (BTEX) mixtures in contaminated soil and groundwater. In this study, a mixed microbial culture obtained from a wastewater treatment plant was used to degrade liquid phase BTEX, at initial concentrations varying between 15 to 75 mg/l. Experiments were conducted according to the 2k-1 ...
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Case study – benzene contamination retail gas station, Colorado
Introduction The scope of work for this site included an expansion of an existing soil venting system to remediate impacted soil and injection of a carbon-based petroleum degrading product to remediate long-term groundwater impacts. By using a combination of remediation technologies, including LT Environmental’s (LTE) TerraCert™ program, the overall goal of a cost effective cleanup ...
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Integrated 3D physical-numerical modelling for simulating bioremediation of petroleum contamination in heterogeneous subsurface environment
This study presents physical-numerical modelling of petroleum contaminant transport and enhanced in situ bioremediation in heterogeneous subsurface environment. The approach is based on development of a three-dimensional multi-layered physical model coupled with a three-dimensional multiphase multi-component numerical model. An experimental scheme was designed to conduct 40-day benzene transport, ...
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Application of electrical resistance heating for remediation petroleum hydrocarbons at Greensboro maintenance yard
Project History Former FDOT Maintenance Yard Operated from 1965 to 1997 Facility dispensed diesel fuel and unleaded gasoline from 3 USTs; 1 AST used to store used oil USTs/AST removed in 1997 SAR/Pre-RAP Monitoring results indicated: Presence of light non-aqueous phase liquid (LNAPL) at depth (approximately 23 feet below land surface) source area assessed as approximately 3,736 square ...
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LNAPL remediation using electrical resistance heating
Abstract An Electrical Resistance Heating (ERH) pilot test was conducted in the fall of 1998 to determine the effectiveness of using ERH in combination with soil vapor extraction (SVE) for the remediation of benzene and light nonaqueous-phase liquids (LNAPL) at an island location on a river in the Midwest. Hydrocarbon-stained soils were discovered on an island in Ohio in May 1993 during the ...
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A coupled simulation and fuzzy-rule-based method for assessing health risks at a petroleum-contaminated site
Risk assessment of contaminated sites is crucial for evaluating adverse health impacts on local communities, and provides effective decision support for site-remediation practices. In this study, a coupled simulation and fuzzy-rule-based method was proposed for health risk assessment of groundwater contamination, and applied to a petroleum contaminated site. Benzene concentrations under two ...
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Full Scale Remediation of Trichloroethene and Benzene, Toluene, Ethyl Benzene, Xylene (BTEX) in Soil Using Six Phase Soil Heating - Niagara Falls, NY - Case Study
Contracting: Fixed Price Per Task Contaminants Treated: Trichloroethene (TCE), Benzene, Toluene, Ethyl Benzene, Xylene (BTEX) Technology Applied: Six-Phase Soil Heating (SPSH) Geology: Sediments, glacial till, bedrock Hydrology: Groundwater at 8 feet below ground surface (bgs) Hydraulic Conductivity: 3 x 10-4 cm/sec Treatment Area & Volume: 12,100 square feet & 4,480 cubic yards Treatment ...
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Spolchemie site remediation and NanoRem field site application
Site Remediation The Spolchemie site was chosen as one of the NanoRem case study sites, to test two types of nanoparticles (NPs) (zerovalent iron - nZVI and iron oxide NPs) for in situ remediation of BTEX (Benzene, Toluene, Ethylbenzene, and Xylenes) contamination. Nanoremediation was seen as an opportunity to enhance the in situ biodegradation of the BTEX contaminants and to reduce the current ...
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