Use Of Ethylene And Ethane For Aerobic Cometabolic Biodegradation Of Vinyl Chloride
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Use Of Ethylene And Ethane For Aerobic Cometabolic Biodegradation Of Vinyl Chloride
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Author : Steven Douglas Herz
language : en
Publisher:
Release Date : 1994
Use Of Ethylene And Ethane For Aerobic Cometabolic Biodegradation Of Vinyl Chloride written by Steven Douglas Herz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Involvement Of Linear Plasmids In Aerobic Biodegradation Of Vinyl Chloride
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Author :
language : en
Publisher:
Release Date : 2004
Involvement Of Linear Plasmids In Aerobic Biodegradation Of Vinyl Chloride written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Pseudomonas putida strain AJ and Ochrobactrum strain TD were isolated from hazardous waste sites based on their ability to use vinyl chloride (VC) as a sole source of carbon and energy under aerobic conditions. Strains AJ and TD also use ethene and ethylene oxide as growth substrates. Strain AJ contained a linear megaplasmid (approximately 260 kb) when grown on VC or ethene, but no circular plasmids. While growing on ethylene oxide, the size of the linear plasmid in strain AJ decreased to approximately 100 kb, although its ability to use VC as a substrate was retained. The linear plasmids in strain AJ were cured and its ability to consume VC, ethene, and ethylene oxide was lost following growth on a rich substrate (Luria-Bertani broth) through at least three transfers. Strain TD contained three linear plasmids, ranging in size from approximately 100 kb to 320 kb, when growing on VC or ethene. As with strain AJ, the linear plasmids in strain TD were cured following growth on Luria -Bertani broth and its ability to consume VC and ethene was lost. Further analysis of these linear plasmids may help reveal the pathway for VC biodegradation in strains AJ and TD and explain why this process occurs at many but not all sites where groundwater is contaminated with chloroethenes. Metabolism of VC and ethene by strains AJ and TD is initiated by an alkene monooxygenase. Their yields during growth on VC (0.15-0.20 mg total suspended solids per mg VC) are similar to the yields reported for other isolates i.e., Mycobacterium sp., Nocardioides sp., and Pseudomonas sp.
Aerobic Biodegradation Of Ethene Cis 1 2 Dichloroethene And Vinyl Chloride In Sediments At The Savannah River Site Sanitary Landfill
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Author : Michael D. Madl
language : en
Publisher:
Release Date : 2002
Aerobic Biodegradation Of Ethene Cis 1 2 Dichloroethene And Vinyl Chloride In Sediments At The Savannah River Site Sanitary Landfill written by Michael D. Madl and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Vinyl Chloride Biodegradation By Methane Oxidizing Bacteria And Ethene Oxidizing Bacteria In The Presence Of Methane And Ethene
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Author : Meng-Chen Lee
language : en
Publisher:
Release Date : 2012
Vinyl Chloride Biodegradation By Methane Oxidizing Bacteria And Ethene Oxidizing Bacteria In The Presence Of Methane And Ethene written by Meng-Chen Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Methanotrophs categories.
Cometabolic And Growth Linked Biodegradation Of Vinyl Chloride Under Aerobic Conditions
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Author : Matthew Francis Verce
language : en
Publisher:
Release Date : 2001
Cometabolic And Growth Linked Biodegradation Of Vinyl Chloride Under Aerobic Conditions written by Matthew Francis Verce and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Mechanisms Chemistry And Kinetics Of The Anaerobic Biodegradation Of Cis Dichloroethylene And Vinyl Chloride First Annual Progress Report September 15 1996 September 14 1997
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Author :
language : en
Publisher:
Release Date : 1997
Mechanisms Chemistry And Kinetics Of The Anaerobic Biodegradation Of Cis Dichloroethylene And Vinyl Chloride First Annual Progress Report September 15 1996 September 14 1997 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
This three-year project is to study the anaerobic biological conversion of cis-1,2- dichloroethene (cDCE) and vinyl Chloride (VC) to ethene. The study is being conducted in three separate phases, the first to better understand the mechanisms involved in cDCE and VC biodegradation, the second to evaluate the chemistry of the processes involved, and the third, to study factors affecting reaction kinetics. Major funding is being provided by the US Department of Energy, but the DuPont Chemical Company has also agreed to directly cost-share on the project at a rate of $75,000 per year for the three year period. Tetrachloroethylene (PCE) and trichloroethylene (TCE) are solvents that are among the most widely occurring organic groundwater contaminants. The biological anaerobic reduction-of chlorinated aliphatic hydrocarbons (CAHs) such as PCE and TCE to cDCE and VC in groundwater was reported in the early 1980s. Further reduction of PCE and its intermediates to ethene was reported in 1989. Several pure cultures of anaerobic bacteria have been found to reductively dehalogenate PCE to cDCE Rates of reduction of PCE and TCE to cDCE are high and the need for electron donor addition for the reactions is small. However, the subsequent reduction of cDCE to VC, and then of VC to the harmless end product, ethene, is much slower and only recently has a pure culture been reported that is capable of reducing cDCE to VC or VC to ethene. There are numerous. reports of such conversions in mixed cultures. The reduction of cDCE and VC to ethene is where basic research is most needed and is the subject of this study.
Physiological And Molecular Genetic Characterization Of Nocardioides Strain Js614 An Aerobic Bacterium That Grows On Vinyl Chloride
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Author : Timothy Edward Mattes
language : en
Publisher:
Release Date : 2004
Physiological And Molecular Genetic Characterization Of Nocardioides Strain Js614 An Aerobic Bacterium That Grows On Vinyl Chloride written by Timothy Edward Mattes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Biodegradation
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Author :
language : en
Publisher:
Release Date : 1995
Biodegradation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Biodegradation categories.
The Summary Of Engineering Research
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Author : University of Illinois (Urbana-Champaign campus). Engineering Experiment Station
language : en
Publisher:
Release Date : 1995
The Summary Of Engineering Research written by University of Illinois (Urbana-Champaign campus). Engineering Experiment Station and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Engineering categories.
Environmental Health Perspectives
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Author :
language : en
Publisher:
Release Date : 2000
Environmental Health Perspectives written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Environmental health categories.