Analysis of ancient sediments for total organic carbon - some new ideas

Churcher, P.L.; Dickhout, R.D.

doi:10.1016/0375-6742(87)90079-3

Cited by 37 publications

(15 citation statements)

References 2 publications

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“…Sediment water content and porosity values were estimated by comparing field and oven dried weights of 10 subsamples of the cored material (Sebol, 2004). Sediment samples were also analyzed for organic carbon content (foc) using the method of Churcher and Dickout (1987) and for reduced S content by combustion and infrared analysis.…”

Section: Aquifer Characterizationmentioning

confidence: 99%

Evidence of CFC degradation in groundwater under pyrite-oxidizing conditions

Sebol

Robertson

Busenberg

et al. 2007

Journal of Hydrology

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Section: Aquifer Characterizationmentioning

confidence: 99%

Evidence of CFC degradation in groundwater under pyrite-oxidizing conditions

Sebol

Robertson

Busenberg

et al. 2007

Journal of Hydrology

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“…Distribution coefficients were estimated using the correlation K d ϭ K oc f oc , where literature values were used for the organic carbon partitioning coefficients (K oc ) of 380, 92, and 86 mL/g for PCE,TCE, and c-DCE, respectively (Table 12.1, . Fraction organic carbon (f oc ) was measured by the Organic Geochemistry Lab at UW, according to the procedure outlined by Churcher and Dickhout (1987). Based on 15 samples collected from MW-74 and MW-75, f oc ranged from 0.31 percent to 0.68 percent, with an average of 0.40 percent, which was used in the retardation factor estimates.…”

Section: Appendix B Compound-specific Carbon Isotope Resultsmentioning

confidence: 99%

“…The average fraction of organic carbon content (f oc ) from the Golder measurements, which used the Walkley-Black wet oxidation method (Walkley, 1947), all fell within a narrow range with a mean of 0.28% (Table 3). Measurements of f oc at the University of Waterloo using a combustion method (Churcher and Dickhout, 1987) on 15 samples from MW-74 and MW-75 provided somewhat higher f oc values ranging from 0.31 to 0.68% with a mean of 0.40%. The latter was used in the R estimate, providing a PCE R of 170.…”

Section: Contaminant Distributions In Rock Corementioning

confidence: 99%

“…Fraction organic carbon (f oc ) was measured by the Organic Geochemistry Lab at UW, according to the procedure outlined by Churcher and Dickhout (1987). Based on fifteen samples collected from MW-74 and MW-75, f oc ranged from 0.31% to 0.68%, with an average of 0.40% which was used in the retardation factor estimates.…”

Section: Table 3-8: Summary Of Boreholes Sampled For Rock Matrix Vocsmentioning

confidence: 99%

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Diagnostic Tools for Performance Evaluation of Innovative In-Situ Remediation Technologies at Chlorinated Solvent-Contaminated Sites

Deeb¹,

Kavanaugh²,

Hawley³

2011

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Standard Form 298 (Rev. 8/98) REPORT DOCUMENTATION PAGEPrescribed by ANSI Std. Z39.18 Form Approved OMB No. 0704-0188The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to the Department of Defense, Executive Services and Communications Directorate (0704-0188). Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ORGANIZATION. 1. REPORT DATE (DD-MM-YYYY)2. REPORT TYPE 3. DATES COVERED (From -To) 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER This Demonstration Report provides an evaluation of innovative diagnostic tools used first for site characterization to support remediation design, and second to evaluate the performance of in situ chemical oxidation (ISCO) using permanganate at the Watervliet Arsenal (WVA). An area of groundwater contamination was discovered in 1998 in the eastern portion of the WVA, adjacent to the site boundary and in front of former manufacturing Building 40. Groundwater contaminants include chlorinated volatile organic compounds (CVOCs), predominantly tetrachloroethene (PCE), and cis-1,2-dichloroethene (DCE), with a lesser percentage of trichloroethene (TCE) and vinyl chloride. Year 2000Year compliant, e.g. 30-06-1998 xx-06-1998; xx-xx-1998. AUTHOR(S) PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S) SPONSOR/MONITOR'S REPORT NUMBER(S)12 REPORT TYPE.State the type of report, such as final, technical, interim, memorandum, master's thesis, progress, quarterly, research, special, group study, etc. DATES COVERED.Indicate the time during which the work was performed and the report was written, e.g., Jun 1997 -Jun 1998; 1-10 Jun 1996; May -Nov 1998; Nov 1998. TITLE.Enter title and subtitle with volume number and part number, if applicable. On classified documents, enter the title classification in parentheses.5a. CONTRACT NUMBER. Enter all contract numbers as they appear in the report, e.g. F33615-86-C-5169. 5b. GRANT NUMBER.Enter all grant numbers as they appear in the report, e.g. AFOSR-82-1234. 5c. PROGRAM ELEMENT NUMBER.Enter all program element numbers as they appear in the report, e.g. 61101A.5d. PROJECT NUMBER. Enter all project numbers as they appear in the report, e.g. 1F665702D1257; ILIR.5e. TASK NUMBER. Enter all task numbers as they appear in the report, e.g....

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“…Distribution coefficients were estimated using the correlation K d ϭ K oc f oc , where literature values were used for the organic carbon partitioning coefficients (K oc ) of 380, 92, and 86 mL/g for PCE,TCE, and c-DCE, respectively (Table 12.1, Pankow & Cherry, 1996). Fraction organic carbon (f oc ) was measured by the Organic Geochemistry Lab at UW, according to the procedure outlined by Churcher and Dickhout (1987). Based on 15 samples collected from MW-74 and MW-75, f oc ranged from 0.31 percent to 0.68 percent, with an average of 0.40 percent, which was used in the retardation factor estimates.…”

Section: Rock Core Testingmentioning

confidence: 99%

Characterization and pilot‐scale studies for chemical oxidation remediation of fractured shale

Goldstein¹,

Vitolins²,

Navon³

et al. 2004

Remediation Journal

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The distribution of volatile organic compounds (VOCs) in fractured shale overlain by thin (Ͻ 10 feet) overburden at the Watervliet Arsenal near Albany, New York, was initially determined by sampling water from the fracture network using packer systems in boreholes and also using conventional monitoring wells. Furthermore, short-term pumping and injection tests were conducted and the boreholes were logged using a variety of geophysical and hydrophysical tools. Tetrachloroethene is the dominant VOC in the groundwater, with lesser concentrations of trichloroethene and degradation products (cis-1,2-dichloroethene, trans-1,2-dichloroethene, and vinyl chloride). The vertical VOC distributions in the rock matrix were obtained from continuous-cored holes from which small rock samples, collected at many depths between 18 and 150 feet below ground surface, were analyzed. The rock core VOC concentrations were determined by methanol extraction of crushed rock followed by direct methanol injection onto a gas chromatograph and subsequent estimation of rock porewater VOC concentrations. The rock core data support the concept that diffusion-driven mass transfer has caused nearly all the VOC mass initially present in the fractures to now reside in the rock matrix, which has a porosity three or four orders of magnitude larger than the bulk fracture porosity. The results of the site characterization indicate that an effective site investigation strategy in fractured shale must include characterization of both the fracture and matrix contaminant distribution.These results also indicate that the most favorable remediation technologies for this fractured shale are those that will destroy VOCs in the rock matrix, particularly contaminants in the sorbed phase, and also destroy the VOC mass in the fractures including both dissolved and immiscible phases. The site characterization resulted in the selection of potassium permanganate for an in situ chemical oxidation pilot study.

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Analysis of ancient sediments for total organic carbon - some new ideas

Cited by 37 publications

References 2 publications

Evidence of CFC degradation in groundwater under pyrite-oxidizing conditions

Evidence of CFC degradation in groundwater under pyrite-oxidizing conditions

Diagnostic Tools for Performance Evaluation of Innovative In-Situ Remediation Technologies at Chlorinated Solvent-Contaminated Sites

Characterization and pilot‐scale studies for chemical oxidation remediation of fractured shale

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