Biogeochemical reductive dechlorination

WebMay 30, 2024 · Results showed that despite the absence of lactate, lactate fermentation transformation products, or hydrogen, biogeochemical conditions remained favorable … WebOct 15, 2012 · The dechlorination kinetic rate constant of PCE in the nFeSCo(III) suspension (k(FeSCo(III))=0.188±0.003 h(-1)) was 145 times greater than that in nFeS suspension, showing a potential role of ≡S(2-)Co(II) as an electron transfer mediator to shuttle electrons for the enhanced reductive dechlorination.

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WebTo effectively apply this strategy, further understanding of the biogeochemical processes controlling the reductive transformation of these compounds is needed. In this research, we studied the biotic and abiotic reductive dechlorination of carbon tetrachloride (CT) in iron- and sulfate-reducing microcosms that were prepared with natural soils ... WebOct 6, 2016 · Biostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study, glycerol was injected in an aquifer contaminated with cis -dichloroethene (cDCE), and geochemical and microbial shifts … bishop of winchester school bournemouth https://amythill.com

Calcium Sulfate (Biogeochemical Reductive …

WebApr 28, 2024 · Biogeochemical Reductive Dechlorination (BiRD). BiRD is the term coined by Kennedy et al. to describe the process of stimulating abiotic reduction of chlorinated solvents by forming reactive iron sulfides. … WebResults showed that despite the absence of lactate, lactate fermentation transformation products, or hydrogen, biogeochemical conditions remained favorable for the reductive dechlorination of ... WebNov 15, 2001 · Straight chain hydrocarbons were extracted from the dolomite previously found to stimulate reductive dechlorination; these were particularly depleted in hexadecane (HD). Thus, we hypothesized that HD and related hydrocarbons might be anaerobically respired and serve both as the source of on-site DIC and support … bishop of winchester academy website

In Situ Biogeochemical Reductive Dechlorination: …

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Biogeochemical reductive dechlorination

Further Biogeochemical Characterization of a Trichloroethene ...

WebJan 1, 2003 · Biogeochemical Reductive Dechlorination (BiRD) is an alternative to bio- stimulation processes used for the treatment of chlorinated aliphatic hydrocarbons (CAHs). BiRD is a new treatment concept ... Web(Biogeochemical Reductive Dechlorination - BiRD) 1. Submitted by Gary Cronk, JAG Consulting Group, Inc. 2. Magnesium sulfate is a white powder product commonly called …

Biogeochemical reductive dechlorination

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WebAn experiment was conducted, in which a carbohydrate solution (molasses) was injected into groundwater wells at a site impacted with chlorinated VOC, e.g., perchloroethylene and trichloroethylene (TCE), to create strongly anaerobic and reducing conditions that might cause Enhanced Reductive Dechlorination (ERD). WebThe National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C.

WebIn a parallel approach, when the acclimated microorganisms from the Reynolds site were inoculated into fresh sediments from both sources as well as sediments enriched with … WebFeb 10, 2006 · Biogeochemical reductive dechlorination (BiRD) is a newly recognized method for the remediation or natural attenuation of chlorinated solvents. Chlorinated solvents are rapidly treated by abiotic reaction with reduced mineral iron sulfides. Iron sulfides are formed by naturally occurring sulfate-reducing bacteria when sufficient …

WebReductive dechlorination is a common anaerobic biodegradation mechanism for chlorinated aromatic compounds. This research tested the hypothesis that the rate of reductive dechlorination reactions depend upon the apparent redox potential, or EH, of the reaction medium. ... Coupling to the Biogeochemical Matrix WebNov 4, 1988 · Abstract. Microorganisms from Hudson River sediments reductively dechlorinated most polychlorinated biphenyls (PCBs) in Aroclor 1242 under anaerobic …

WebApr 10, 2024 · Biogeochemical processes leading to the oxidation of DOM and the depletion of DO lead to biotic reductive dechlorination of chlorinated solvents when dominant redox conditions become sufficiently reducing (Wiedemeier et al., 1998; Bradley, 2003, Bradley, 2011). The fracture zones that affect aquitards play a similar role to the … dark pretty laptop wallpaperWeb开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆 dark pretty wallpaperWebINIS Repository Search provides online access to one of the world's largest collections on the peaceful uses of nuclear science and technology. The International Nuclear Information System is operated by the IAEA in collaboration with over 150 members. bishop of winchester ofstedWebApr 12, 2024 · ESAA bishop of winchester term datesWebJun 22, 2024 · Results showed that despite the absence of lactate, lactate fermentation transformation products, or hydrogen, biogeochemical conditions remained favorable for the reductive dechlorination of chlorinated ethenes. In locations where soil data showed that TCE DNAPL sources persisted, local contaminant rebound was observed in … bishop of winchester schoolWebBiostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical … dark prince christine feehan read online freeWebOct 6, 2001 · A recent article presented geochemical and microbial evidence establishing metabolic adaptation to and in-situ reductive dechlorination of trichloroethene (TCE) in a fractured dolomite aquifer. This study was designed to further explore site conditions and microbial populations and to explain previously reported enhancement of reductive … dark prince crown isaac