Monitoring Oxidation of Chlorinated Ethenes by Permanganate in Groundwater Using Stable Isotopes:  Laboratory and Field Studies

Hunkeler, Daniel; Aravena, Ramón; Parker, Beth L.; Cherry, John A.; Diao, Xinshen

doi:10.1021/es020073d

Cited by 67 publications

(57 citation statements)

References 26 publications

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“…Measuring isotope fractionation (e.g. 13 C/ 12 C) is also a powerful tool to quantify microbial activity (Bloom et al 2000;Hunkeler et al 2001;Hunkeler et al 2003). The degradation of specific substances, including isotopically labelled compounds, can be studied in different ways:…”

Section: Methodsmentioning

confidence: 99%

Review: Microbial biocenoses in pristine aquifers and an assessment of investigative methods

2006

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The current knowledge of microbial biocenoses (communities) in pristine aquifers is presented in a review, which also discusses their relevance for questions of groundwater protection. Aquifers are heterogeneous on all scales and structured in a variety of habitats. The void spaces in many aquifers are small. The biocenoses are thus predominantly composed of microorganisms and, often, microinvertebrates. Larger voids and macroorganisms occur in karst cavities. Due to the absence of light, the biocenoses depend on chemical energy resources, which are, however, scarce in non-contaminated groundwater. The microorganisms thus show small cell sizes, low population densities and reduced activity; they developed specific strategies to survive oligotrophic conditions. The review also discusses the impact of contamination on the biocenoses, and the potential use of the biocenoses or specific organisms as indicators for groundwater quality, and the limits of this approach. Bacteria are either planktonic or attached to aquifer material, which requires both fluid and solid phase sampling. Most groundwater bacteria are viable but non-culturable. Consequently, cultivation techniques give an incomplete picture of the biocenoses, while methods from molecular microbiology provide genetic fingerprints of the entire community. Different analytical methods are available to count microorganisms, identify species, characterise microbial diversity, and measure activity.Résumé Cette revue expose l'état actuel des connaissances concernant les biocénoses microbiennes présentes dans les aquifères oligotrophes. L'impact d'une contamination sur les biocénoses est discuté, ainsi que le potentiel que Les bactéries sont planctoniques ou attachées aux matériaux de l'aquifère, ce qui demande unéchantillonnagè a la fois de l'eau et du substrat. De nombreuses méthodes sont aujourd'hui disponibles pour le comptage, l'identification et la caractérisation de la diversité, ainsi que la mesure des activités des organismes des aquifères. Comme la grande majorité des bactéries est viable mais non cultivable, les techniques de cultures actuelles ne donnent qu'une image incomplète des communautés, alors que les méthodes moléculaires développées récemment offrent la possibilité d'obtenir un profil de la communauté plus complet.Resumen Se presentauna reseña crítica del conocimiento actual de biocenosis microbiana (comunidades) en acuíferos prístinos la cual también discute su relevancia en términos de protección de aguas subterráneas. Los acuíferos son heterogéneos en todas las escalas y estructurados en una variedad de habitats. Los espacios vacíos en muchos acuíferos son pequeños. La biocenosis está por lo tanto compuesta predominantemente por microorganismos y, frecuentemente, microinvertebrados. Espacios más grandes y macroorganismos ocurren en cavidades kársticas. Debido a la ausencia de luz la biocenosis depende de recursos energéticos químicos los cuales, sin embargo, son escasos en agua subterránea no contaminada. Los microorganismos muestran...

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Section: Methodsmentioning

confidence: 99%

Review: Microbial biocenoses in pristine aquifers and an assessment of investigative methods

2006

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“…A number of review articles provide insight into the chemistry and proper application of oxidation regimens (Gates and Siegrist 1995;Kubal et al 2008;Rivas 2006;Seol et al 2003;Tsai et al 2008;Watts and Teel 2005). ISCO has been successfully used to oxidize and thus lower the concentration of petroleum-derived hydrocarbons (total petroleum hydrocarbons, TPH, Crimi and Taylor 2007;Gates and Siegrist 1995;Huang et al 2005;Jung et al 2005;Lee and Kim 2002), polyaromatic hydrocarbons (PAH; Lee and Hosomi 2001;Masten and Davies 1997;Nam et al 2001;Watts et al 2002), and chlorinated hydrocarbons (Huang et al 1999(Huang et al , 2005Hunkeler et al 2003;Northup and Cassidy 2008;Ormad et al 1994;Schnarr et al 1998;Siegrist et al 1999;Vella and Veronda 1993;Watts et al 1990). ISCO is a versatile remediation strategy, providing rapid and extensive removal of both light and dense recalcitrant compounds in pure phase.…”

Section: Introductionmentioning

confidence: 99%

Efforts to improve coupled in situ chemical oxidation with bioremediation: a review of optimization strategies

et al. 2010

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Purpose In order to provide highly effective yet relatively inexpensive strategies for the remediation of recalcitrant organic contaminants, research has focused on in situ treatment technologies. Recent investigation has shown that coupling two common treatments-in situ chemical oxidation (ISCO) and in situ bioremediation-is not only feasible but in many cases provides more efficient and extensive cleanup of contaminated subsurfaces. However, the combination of aggressive chemical oxidants with delicate microbial activity requires a thorough understanding of the impact of each step on soil geochemistry, biota, and contaminant dynamics. In an attempt to optimize coupled chemical and biological remediation, investigations have focused on elucidating parameters that are necessary to successful treatment. In the case of ISCO, the impacts of chemical oxidant type and quantity on bacterial populations and contaminant biodegradability have been considered. Similarly, biostimulation, that is, the adjustment of redox conditions and amendment with electron donors, acceptors, and nutrients, and bioaugmentation have been used to expedite the regeneration of biodegradation following oxidation. The purpose of this review is to integrate recent results on coupled ISCO and bioremediation with the goal of identifying parameters necessary to an optimized biphasic treatment and areas that require additional focus. Conclusions and recommendations Although a biphasic treatment consisting of ISCO and bioremediation is a feasible in situ remediation technology, a thorough understanding of the impact of chemical oxidation on subsequent microbial activity is required. Such an understanding is essential as coupled chemical and biological remediation technologies are further optimized.

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“…The trend toward enriched δ 13 C values observed at IW-4 was also accompanied by a decrease in VOC concentration and it is clear evidence of the occurrence of VOC oxidation by potassium permanganate. δ 13 C values as high as +200 ‰ have been observed in granular aquifers where the VOC source has been completely oxidized (Hunkeler et al, 2003). The relatively low δ…”

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confidence: 99%

“…Significant carbon isotope fractionation has been reported for biodegradation of chlorinated ethenes and chlorinated ethanes in laboratory experiments (e.g., Bloom et al, 2000;Chartrand et al, 2005;Hunkeler et al, 1999) and isotopic analysis has been applied at field sites to demonstrate and evaluate biodegradation of these compounds in groundwater (e.g., Hunkeler et al, 1999;Sherwood Lollar and Slater, 2001;Vieth et al, 2003). Laboratory studies have also shown that strong carbon isotope fractionation occurs during chemical oxidation of chlorinated compounds by potassium permanganate (e.g., Hunkeler et al, 2003) which makes isotopic analyses a potentially powerful diagnostic tool for monitoring ISCO, since they can be used to verify that concentration declines in target compounds are due to degradation instead of physical (e.g., displacement) processes. The laboratory at the UW has the capability to analyze carbon isotopes of chlorinated ethenes over a wide concentration range, including very low (i.e.…”

mentioning

confidence: 99%

“…microgram per liter) concentration levels making it ideal for applications involving in-situ 2-19 oxidation. UW researchers have applied isotopic analyses at three sites to date as a tool to monitor ISCO: two of the sites are in sandy aquifers (Connecticut, Ontario), while the sampling conducted at the WVA during the pilot study potassium permanganate injection trial was the first application in a fractured rock setting (Hunkeler et al, 2003;Aravena et al, 2004). The following is a list of selected publications by UW researchers (including conference proceedings and peer-reviewed manuscripts) related to compound-specific isotopic analysis of chlorinated ethenes in potassium permanganate studies.…”

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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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Monitoring Oxidation of Chlorinated Ethenes by Permanganate in Groundwater Using Stable Isotopes: Laboratory and Field Studies

Cited by 67 publications

References 26 publications

Review: Microbial biocenoses in pristine aquifers and an assessment of investigative methods

Review: Microbial biocenoses in pristine aquifers and an assessment of investigative methods

Efforts to improve coupled in situ chemical oxidation with bioremediation: a review of optimization strategies

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

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