Biogeochemical reductive dechlorination
WebIn situ biogeochemical transformation (ISBGT), or biogeochemical reductive dechlorination, is the process of stimulating abiotic reduction of chlorinated solvents by formation and reaction with iron sulfides. Iron … 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.
Biogeochemical reductive dechlorination
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WebJun 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 … WebApr 12, 2024 · ESAA
WebMay 30, 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 … 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).
Web开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆 WebJan 1, 2014 · Biogeochemical reductive dechlorination is primarily employed as a barrier technology, and to date these usually have been biowalls of mulch amended with gypsum and goethite. In Situ Redox Manipulation.In soil matrices with significant iron (>1 wt%), applications of moderately strong chemical reductants such as sodium dithionite or …
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WebSITUATIONAL SUMMARY. In Situ Chemical Reduction (ISCR) using ELS ® Microemulsion was compared to Enhanced Reductive Dechlorination (ERD) to treat groundwater affected by trichloroethene (TCE). Two pilot tests were conducted that compared the rates of contaminant degradation as well as other biogeochemical processes of both processes. chi st joseph jobs bryan texasWeb(Biogeochemical Reductive Dechlorination - BiRD) 1. Submitted by Gary Cronk, JAG Consulting Group, Inc. 2. Magnesium sulfate is a white powder product commonly called … chi st joseph hospital park rapids mnWebNov 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 … graph search path plannerWebFeb 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 … chi st joseph imaging college station texasWebContrastingly, VC was metabolically oxidized by ethenotrophs in low-TOC sediments with low reductive dechlorination potential. Accordingly, enrichment and isolation of … graphsearch针对这随机生成的10组初始状态的解是最优的吗WebIdentification of abiotic and biotic reductive dechlorination in a chlorinated ethene plume after thermal source remediation by means of isotopic and molecular biology tools ... application of compound-specific isotopic analysis combined with molecular biology tools to evaluate which biogeochemical processes are taking place in an aquifer ... chi st joseph in bryan texasWebOct 1, 2024 · Microbial reductive dechlorination is a major degradation pathway of chlorinated hydrocarbon in anaerobic subsurface environments, has been extensively studied. ... Years later, nZVI was tested for stimulating PCBs dechlorination under in situ-like biogeochemical conditions in a marine sediment (1.6 mg/kg (dry wt.)) collected from … chi st joseph imaging