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◊ Air Sparging
◊ Bioreactor Landfills ◊ Bioremediation of Chlorinated Solvents ◊ Bioventing and Biosparging ◊ Electrokinetics: Electric Current Technologies ◊ Fracturing ◊ Ground-Water Circulating Wells ◊ In Situ Flushing ◊ In Situ Oxidation ◊ Multi-Phase Extraction ◊ Natural Attenuation ◊ Permeable Reactive Barriers ◊ Phytoremediation ◊ Remediation Optimization ◊ Soil Vapor Extraction ◊ Soil Washing ◊ Solvent Extraction ◊ Thermal Treatment: Ex Situ ◊ Thermal Treatment: In Situ
Application
Chemical Oxidation Site Profiles Information about completed and ongoing applications of in situ chemical oxidation technologies to treat chlorinated solvents, petroleum products, and pesticide compounds in groundwater and soil are captured in this web site. The information is provided in project profiles that summarize relevant site information, contaminants and media, technology design and operation, and cost and performance results, as well as point(s) of contact and references.
Cost and Performance Report for the Geo-Cleanse® Process Treatment Demonstration at Naval Air Station Pensacola, FL, Operable Unit 10, Pensacola, Florida
This paper is a status update on the use of DNAPL source reduction remedial technologies, and provides information about recent projects where regulatory closure has been reached or projects that are approaching regulatory closure, following source reduction. Information is presented about the challenges associated with DNAPL remediation, the types of in situ technologies used, and data and findings concerning the relative effectiveness of field applications of these technologies. Appendix A contains project profiles for eight field applications that illustrate some of the findings presented in this paper.
The experimental HiPOx system was not fully successful with the atypical water at the chosen oxidant doses in this particular application.
Demonstration of ISCO Treatment of a DNAPL Source Zone at Launch Complex 34 in Cape Canaveral Air Station
This report contains information on the implementation and results of a full-scale in situ chemical oxidation (ISCO) pilot study conducted using the BIOX(r) technology in three areas affected by benzene, PCE, TCE, vinyl chloride, and xylenes.
Soil contaminated with TNT, DNT, a PCB (Araclor 1260), PAHs, and lead was addressed with a series of chemical-based treatments, i.e., application of lime to treat the explosives, advanced oxidation (persulfate and Fenton's reagent) for treatment of PCBs and PAHs, and use of phosphate for stabilizing lead. Lime treatment degraded 98% of TNT, 75% of DNT, and 80% of PCBs, with minimal removal (41%) of PAHs. Similar removal levels were found for persulfate treatment and lime followed by persulfate. Treatments of the most contaminated soil did not meet preliminary remediation goals for explosives or PCBs.
Describes recent pilot demonstrations and full-scale applications that either treat soil and ground water in place or increase the solubility and mobility of contaminants to improve their removal by other remediation technologies.
Final Report for Demonstration of In Situ Oxidation of DNAPL Using the Geo-Cleanse Technology In 1997, in situ oxidation was demonstrated at the A/M Area of the Savannah River Site (SRS) on undissolved dense non-aqueous phase liquid (DNAPL) in soil and ground water. The report is available through the DOE Information Bridge.
A Full-Scale Demonstration of In Situ Chemical Oxidation through Recirculation at the X-701B Site In 1997, the Department of Energy undertook a month-long, field-scale treatability study using in situ chemical oxidation through recirculation (ISCOR) technology at a Portsmouth Gaseous Diffusion Plant site where TCE contaminates ground water and sediments. Available through the DOE Information Bridge.
This report documents a demonstration at the DOE Portsmouth Gaseous Diffusion Plant using in-situ chemical oxidation (KMnO4) to treat TCE The demonstration used recirculation wells and reduced the contaminant significantly in some areas but had delivery problems.
The in situ thermal remediation technology known as Hydrous Pyrolysis/Oxidation (HPO) uses hot, oxygenated ground water to completely mineralize a wide range of organic pollutants. A field demonstration of HPO was performed at a creosote-contaminated site during the summer of 1997.
In-Situ DuoxTM Chemical Oxidation Technology to Treat Chlorinated Organics at the Roosevelt Mills Site, Vernon, CT: Site Characterization and Treatability Study Report
SRS Data Report for Lynntech Soil Ozone Treatment Demonstration Adjacent to the 321-M Solvent Storage Tank Pad
Site Profiles of Remedial Technologies: Chemical Oxidation These profiles describe recent field demonstrations and commercial applications of chemical oxidation.
A pilot study was conducted to evaluate site-specific conditions associated with in situ chemical oxidation using potassium permanganate for vinyl chloride in ground water and to establish preliminary design and performance criteria for full-scale implementation.
Soil Vapor Extraction and In Situ Chemical Oxidation at Swift Cleaners, Jacksonville, Florida
Creosote and pentachlorophenol were found over an 11,000 cubic meter volume in consolidated shallow alluvium deposit at an operating wood treatment facility in Colorado. In pilot-scale field studies of in situ biogeochemical stabilization initiated in 2002, 24,050 gallons of a 3% aqueous potassium permanganate solution were injected into 13 locations within a test area, achieving rapid and complete stabilization of NAPL, contaminant mass reduction of 10 to 79%, and flux reduction of 56 to 99%. Regulators approved a full-scale application of the technology at the site.
This report attempts to capture the current state of the art for this technology, recognizing it is in a state of rapid development. The report also attempts to indicate the types of information that are needed to continue the evolution of in situ oxidation and to successfully implement the technology at specific sites.
XPERT Design and Diagnostics' (XDD) In Situ Chemical Oxidation Process Using Potassium Permanganate (KMnO4): Innovative Technology Evaluation Report Describes an evaluation of the XDD ISCO process using potassium permanganate at a site in Hudson, NH, to address chlorinated volatile organics, including PCE, TCE, cDCE, 1,1,1-TCA, and 1,1-DCA.
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