Biological reductive dechlorination
WebNational Center for Biotechnology Information Webreductive dechlorination processes towards sediment-carried PCBs whereas the other 4 microcosms (2 biologically active and 2 autoclave-sterilized) were spiked with 3,3’,4,4 ...
Biological reductive dechlorination
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WebDechlorination often occurs very slowly and under electron donor, and nutrient limiting conditions in the subsurface. Meanwhile, other co-occurring terminal electron accepting … In organochlorine chemistry, reductive dechlorination describes any chemical reaction which cleaves the covalent bond between carbon and chlorine via reductants, to release chloride ions. Many modalities have been implemented, depending on the application. Reductive dechlorination is often … See more Dechlorination is a common reaction in organic synthesis. Usually only stoichiometric amounts of dechlorinating agent are used. A classic Ullmann reaction is the conversion of 2-chloronitrobenzene into 2,2'-dinitro See more The electrochemical reduction of chlorinated chemicals such as chlorinated hydrocarbons and chlorofluorocarbons can be carried out by electrolysis in appropriate solvents, such as … See more Vicinal reduction involves the removal of two halogen atoms that are adjacent on the same alkane or alkene, leading to the formation of an additional carbon-carbon bond. Biological reductive dechlorination is often effected by certain … See more
WebAug 1, 1991 · Anaerobic methanol-PCE enrichment cultures which proved capable of dechlorinating high concentrations PCE to ethene were developed and suggest that reductive dechlorination could be exploited for bioremediation of PCE-contaminated sites. Tetrachloroethene, also known as perchloroethylene (PCE), is a common groundwater … WebIn previous research, the presence of nitrate or sulfate has been observed to inhibit biological reductive dechlorination. In this study hollow-fiber membranes were used to supply hydrogen to a mixed culture to investigate whether adequate hydrogen could be added to support dechlorination in the presence of alternative electron acceptors.
WebReductive dechlorination of low concentration polychlorinated biphenyls as affected by a rhamnolipid biosurfactant J Microbiol Biotechnol. 2008 Sep;18(9):1564-71. Authors ... Du … WebSep 24, 2006 · The investigation of the biological reductive dechlorination of chlorobenzenes by methanogenic consortia in river sediments is dependent on reliable analytical procedures. Two different extraction methods for the determination of chlorobenzenes from sediment samples were developed. Lower chlorinated benzenes …
WebReductive dechlorination by cometabolism is the reduction of a chlorinated organic compound by an enzyme or co-factor produced during the metabolism or another …
WebReductive Dechlorination Reductive dechlorination is adistinct metabolic pathway wherein halo-respiring bacteria usetheCVOC as anelectron acceptor. Theelectron donor is typically a carbon substrate or molecular hydrogen (produced by thefermentation of acarbon substrate). The dechlorination is a sequential hydrogenolysis wherein chlorines ... sim only max plan eeWebNov 20, 2024 · Efficient remediation of river sediments contaminated by polychlorinated biphenyls and hexachlorobenzene by coupling in situ phase-inversion emulsification and … simonly met 5gWebJan 1, 2000 · A significant level of enhanced biological reductive dechlorination was demonstrated at a commercial dry cleaning facility in Orlando, Florida. Under the auspices of the Florida Department of ... sim only irelandWebJan 13, 2024 · The batch reactors evaluated in terms of reductive dechlorination rate and utilization efficiency of the electron donor reported that the bio-electrochemical system (BES) showed a lower RD rate with respect of lactate reactor (51 ± 9 µeq/d compared to 98 ± 4 µeq/d), while the direct utilization of molecular hydrogen gave a significantly ... sim only lycamobileWebThese processes involve the transfer of electrons from an electron donor (food source) to an electron acceptor. Three categories of metabolic processes are involved in the … sim only meansWebAdvanced Biological Treatment for Industrial Wastewaters: Principles & Applications, IWA Publishing, London, UK. ... Reductive Dechlorination of Chloroalkenes in Microcosms Developed with a Field Contaminated Soil. Chemosphere. 27(4), 585-595. Pavlostathis, S. G.* and D. Morrison. 1994. Response of Continuous-Flow Activated Sludge Reactors to ... sim only meaningWebAug 30, 2024 · The low-chlorinated compounds formed after reductive dechlorination could be further aerobically degraded and completely mineralized. This paper reviews the recent advances in biological degradation of PCBs, introduces the functional bacteria and enzymes involved in the anaerobic and aerobic degradation of PCBs, and discusses the … sim only lte deals