Download or read book Methanotrophic Vinyl Chloride Biodegradation written by Yarrow Michael Nelson and published by . This book was released on 1993 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vinyl Chloride Biodegradation by Methane oxidizing Bacteria and Ethene oxidizing Bacteria in the Presence of Methane and Ethene written by Meng-Chen Lee and published by . This book was released on 2012 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Methanotroph Presence and Activity in Dilute Vinyl Chloride Contaminated Groundwater written by Meredith Lynn Dobson and published by . This book was released on 2011 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technique could also provide lines of evidence for natural attenuation of VC, thus support existing anaerobic bioremediation technologies that generate VC as a metabolic intermediate. In this work, we evaluated several PCR primer sets from the literature for use in methanotroph qPCR assays of groundwater samples. PCR primers targeting two functional genes involved in VC cometabolism, pmoA (sub-unit of particulate methane monooxygenase (pMMO)) and mmoX (sub-unit of soluble MMO (sMMO)), as well as 16S rRNA gene primers that targeted Bacteria, and Type I and Type II methanotrophs were tested. These assays were made quantitative by constructing standard curves with DNA from Methylococcus capsulatus (Type I) and Methylocystis sp. strain Rockwell (Type II). Primer sets were evaluated by comparing gene abundance estimated against known amounts of Type I and Type II methanotroph DNA.

Download or read book Engineered Approaches to in Situ Bioremediation of Chlorinated Solvents written by and published by DIANE Publishing. This book was released on 2000 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of In situ Methanotrophic Bioremediation for Contaminated Groundwater St Joseph Michigan written by Perry L. McCarty and published by . This book was released on 1990 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results of a nine-month study to evaluate the feasibility of using indigenous bacteria that use methane as a source of cell carbon and energy (methanotrophs) for degrading chlorinated solvents and their degradation products in groundwater at a site in St. Joseph, Michigan. At this site, trichloroethylene (TCE), 1,2-cis-dichloroethylene (c-DCE), 1,2-trans-dichloroethylene (t-DCE), and vinyl chloride (VC) are present in the groundwater at concentrations in the range of 1000 micrograms/liter. This site appears to be a suitable candidate for evaluating the potential for full-scale treatment using a process that has been evaluated in the laboratory and field over a four-year period at Stanford University.--Introduction, page 1.

Download or read book Evaluation of In situ Methanotrophic Bioremediation for Contaminated Groundwater St Joseph Michigan written by Perry L. McCarty and published by . This book was released on 1990 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results of a nine-month study to evaluate the feasibility of using indigenous bacteria that use methane as a source of cell carbon and energy (methanotrophs) for degrading chlorinated solvents and their degradation products in groundwater at a site in St. Joseph, Michigan. At this site, trichloroethylene (TCE), 1,2-cis-dichloroethylene (c-DCE), 1,2-trans-dichloroethylene (t-DCE), and vinyl chloride (VC) are present in the groundwater at concentrations in the range of 1000 micrograms/liter. This site appears to be a suitable candidate for evaluating the potential for full-scale treatment using a process that has been evaluated in the laboratory and field over a four-year period at Stanford University.

Download or read book Toxicological Profile for Vinyl Chloride written by and published by . This book was released on 1995 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ground Water Issue written by Ann Azadpour-Keeley and published by . This book was released on 1999 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sustained Trichloroethylene Degradation in Counter diffusional Membrane attached Methanotrophic Biofilms written by Lee W. Clapp and published by . This book was released on 1999 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Methanotrophic Bacteria During Injection of Gaseous Nutrients for In Situ Trichloroethylene Bioremediation in a Sanitary Landfill written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Methanotrophic bacterial populations were quantified in an aquifer that was amended with air (oxygen), methane, triethyl-phosphate, and nitrous oxide to evaluate their effectiveness to stimulate aerobic bioremediation of vinyl chloride (VC), dichloroethylene, and trichloroethylene (TCE). Contaminants in groundwater resulted from leachate originating from a nearby landfill. Groundwater samples were taken during gas injection and analyzed for changes in bacterial populations. The methanotrophic populations were monitored in groundwater using direct fluorescent antibodies (DFA) and the most probable number (MPN) technique. Acridine orange direct counts (AODC) were used to determine the total bacterial population. Methanotrophic populations increased significantly in groundwater during the course of gaseous nutrient injections. As methanotrophic bacteria reached a maximum population in 3-4 days, contaminant levels (TCE) decreased. Cis-dichloroethylene (c-DCE) demonstrated a transient increase in concentration during the experiment but decreased rapidly over the course of the experiment. The total number of groundwater microorganisms did not change, indicating a selective stimulation of the methanotrophic bacterial population. These bacterial data were compared to physical parameters (pH, dissolved oxygen, redox) and contaminant (TCE, c-DCE, VC) concentrations within the saturated and unsaturated zone to reveal the efficiency of the system. The loss of contaminants appears to be due to cometabolic biodegradation through biostimulation since loss by volatilization was accounted for and was minimal. This work clearly demonstrates that one can effectively change the subsurface bacterial population in a relatively short period of time.

Download or read book Handbook of Bioremediation written by Robert D. Norris and published by CRC Press. This book was released on 1993-10-25 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading soil and ground-water remediation scientists, Handbook of Bioremediation presents information regarding the processes, application, and limitations of using remediation technologies to restore contaminated soil and ground water. It covers field-tested technologies, site characterization requirements for each remediation technology, and the costs associated with their implementation. In addition to discussions and examples of developed technologies, the book provides insights into technologies ranging from theoretical concepts to limited field-scale investigations. In situ remediation systems, air sparging and bioventing, the use of electron acceptors other than oxygen, natural bioremediation, and the introduction of organisms into the subsurface are among the specific topics covered in this invaluable handbook.

Download or read book Methane Oxidising Bacteria as Environmental Indicators written by Svend Jørgen Binnerup, Mette Marianne Sven-ning, Anne Grethe Hestnes, Ingvild Wartiainen and published by Nordic Council of Ministers. This book was released on 2005-03-11 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exploring the Limits of Aerobic Vinyl Chloride and Cis dichloroethene Biodegradation Under Suboxic Conditions written by Patrick M. Richards and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An improved understanding of VC and cis-DCE biodegradation under low oxygen conditions could increase the efficiency and sustainability of CE remediation and to expand the use of Monitored Natural Attenuation as a remedial alternative. The overall objective of the studies presented here is to better define the role of aerobic VC and cis-DCE degrading bacteria under suboxic conditions, and to provide practical guidance for expanding the role of aerobic CE biodegradation as a site remediation strategy.

Download or read book Methodologies for Evaluating In situ Bioremediation of Chlorinated Solvents written by and published by . This book was released on 1992 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cometabolic and Growth linked Biodegradation of Vinyl Chloride Under Aerobic Conditions written by Matthew Francis Verce and published by . This book was released on 2001 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicological Profile for Vinyl Chloride VC update written by G. Daniel Todd and published by DIANE Publishing. This book was released on 2011-05 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterizes the toxicologic and adverse health effects info. for VC, which has been found in toxic sites. VC is used to make polyvinyl chloride (PVC), which is used to make pipes, packaging materials, furn. and auto upholstery, wall coverings, housewares, and auto parts. This profile includes: (a) The examination and interpretation of toxicologic info. on VC to ascertain the acute, subacute, and chronic health effects (ASCHA); (b) A determin¿n. of whether adequate info. on the health effects of VC is available to determine whether there is significant risk to human health of ASCHA; and (c) Ident. of toxicologic testing needed to identify the types or levels of exposure that may present significant risk of adverse health effects in humans. Illus. A print on demand report.

Download or read book Study of Vinyl Chloride Formation at Landfill Sites in California written by Peter M. Molton and published by . This book was released on 1987 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: