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In Situ Bioremediation Of Trichloroethylene Contaminated Water By A Resting Cell Methanotrophic Microbial Filter
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Book Synopsis In Situ Bioremediation of Trichloroethylene-contaminated Water by a Resting-cell Methanotrophic Microbial Filter by :
Download or read book In Situ Bioremediation of Trichloroethylene-contaminated Water by a Resting-cell Methanotrophic Microbial Filter written by and published by . This book was released on 1992 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lawrence Livermore National Laboratory is testing and developing an in situ microbial filter technology for remediating migrating subsurface plumes contaminated with low concentrations of trichloroethylene (TCE). Their current focus is the establishment of a replenishable bioactive zone (catalytic filter) along expanding plume boundaries by the Injection of a representative methanotrophic bacterium, Methylosinus trichosporium OB3b. We have successfully demonstrated this microbial filter strategy using emplaced, attached resting cells (no methane additions) in a 1.1-m flow-through test bed loaded with water-saturated sand. Two separate 24 h pulses of TCE (109 ppb and 85 ppb), one week apart, were pumped through the system at a flow velocity of 1.5 cm/h; no TCE (
Book Synopsis In Situ Bioremediation of Trichloroethylene Using Burkholderia Cepacia G4 PR1 by : Richard A. Snyder
Download or read book In Situ Bioremediation of Trichloroethylene Using Burkholderia Cepacia G4 PR1 written by Richard A. Snyder and published by . This book was released on 1998 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of In-situ Methanotrophic Bioremediation for Contaminated Groundwater, St. Joseph, Michigan by : Perry L. McCarty
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 Energy Research Abstracts written by and published by . This book was released on 1993 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laboratory Treatability Studies Preparatory to Field Testing a Resting-cell in Situ Microbial Filter Bioremediation Strategy by : R. T. Taylor
Download or read book Laboratory Treatability Studies Preparatory to Field Testing a Resting-cell in Situ Microbial Filter Bioremediation Strategy written by R. T. Taylor and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prior to a down-hole-column treatability test of a Methylosinus trichosporium OB3b attached-resting-cell in situ biofilter strategy, a set of three sequential laboratory experiments were carried out to define several key operational parameters and to evaluate the likely degree of success at a NASA Kennedy Space Center site. They involved the cell attachment to site-specific sediments, the intrinsic resting-cell biotransformation capacities for the contaminants of interest plus their time-dependent extents of biodegradative removal at the concentrations of concern, and a scaled in situ mini-flow-through-column system that closely mimics the subsurface conditions during a field-treatability or pilot test of an emplaced resting-cell filter. These experiments established the conditions required for the complete metabolic removal of a vinyl chloride (VC), cis-dichlororthylene (cis-DCE) and trichloroethylene (TCE) mixture. However, the gas chromatographic (GC) procedures that we utilized and the mini-flow-through column data demonstrated that, at most, only about 50--70% of the site-water VC, cis-DCE, and TCE would be biodegraded. This occurred because of a limiting level of dissolved oxygen, which was exacerbated by the simultaneous presence of several additional previously unrecognized groundwater components, especially methane, that are also competing substrates for the whole-cell soluble methane monooxygenase (sMMO) enzyme complex. Irrespective, collectively the simplicity of the methods that we have developed and the results obtainable with them appear to provide relevant laboratory-based test-criteria before taking our microbial filter strategy to an in situ field treatability or pilot demonstration stage at other sites in the future.
Download or read book Methanotrophs written by Eun Yeol Lee and published by Springer Nature. This book was released on 2019-09-05 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive overview of the microbiological fundamentals and biotechnological applications of methanotrophs: aerobic proteobacteria that can utilize methane as their sole carbon and energy source. It highlights methanotrophs’ pivotal role in the global carbon cycle, in which they remove methane generated geothermally and by methanogens. Readers will learn how methanotrophs have been employed as biocatalysts for mitigating methane gas and remediating halogenated hydrocarbons in soil and underground water. Recently, methane has also attracted considerable attention as a potential next-generation carbon feedstock for industrial biotechnology, because of its abundance and low price. Methanotrophs can be used as biocatalysts for the production of fuels, chemicals and biomaterials including methanobactin from methane under environmentally benign production conditions. Sharing these and other cutting-edge insights, the book offers a fascinating read for all scientists and students of microbiology and biotechnology.
Book Synopsis Evaluation of In-situ Methanotrophic Bioremediation for Contaminated Groundwater, St. Joseph, Michigan by : Perry L. McCarty
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.
Book Synopsis Bioaugmentation for Groundwater Remediation by : Hans F. Stroo
Download or read book Bioaugmentation for Groundwater Remediation written by Hans F. Stroo and published by Springer Science & Business Media. This book was released on 2012-10-02 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: ​This volume provides a review of the past 10 to 15 years of intensive research, development and demonstrations that have been on the forefront of developing bioaugmentation into a viable remedial technology. This volume provides both a primer on the basic microbial processes involved in bioaugmentation, as well as a thorough summary of the methodology for implementing the technology. This reference volume will serve as a valuable resource for environmental remediation professionals who seek to understand, evaluate, and implement bioaugmentation.
Book Synopsis Laboratory Treatability Studies Preparatory to Field Testing a Resting-cell in Situ Microbial Filter Bioremediation Strategy by : R. T. Taylor
Download or read book Laboratory Treatability Studies Preparatory to Field Testing a Resting-cell in Situ Microbial Filter Bioremediation Strategy written by R. T. Taylor and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Emerging Technologies in Hazardous Waste Management 8 by : D. William Tedder
Download or read book Emerging Technologies in Hazardous Waste Management 8 written by D. William Tedder and published by Springer Science & Business Media. This book was released on 2000-05-31 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several long-term trends in technology evolution have become apparent since these symposia began in 1989. Earlier presenters more frequently discussed treatment methods involving harsh and extensive human intervention. As the symposia have continued, the number of presentations describing extremely harsh and expensive treatment technologies have gradually been supplanted by more subtle and gentler methods. Such methods include subsurface-engineered barriers, phytoremediation, and bioremediation. Nineteen manuscripts were selected for inclusion in this volume, based upon peer review, scientific merit, the editors' perceptions of lasting value or innovative features, and the general applicability of either the technology itself or the scientific methods and scholarly details provided by the authors. General topics include: soil treatment, groundwater treatment, and radioactive waste treatment.
Book Synopsis Microbial Community Structure in a Trichloroethylene Contaminated Aquifer During Toluene Stimulated Bioremediation by : Elica Monique Moss
Download or read book Microbial Community Structure in a Trichloroethylene Contaminated Aquifer During Toluene Stimulated Bioremediation written by Elica Monique Moss and published by . This book was released on 2004 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Industrial Applications of Soil Microbes by : Ashutosh Gupta
Download or read book Industrial Applications of Soil Microbes written by Ashutosh Gupta and published by Bentham Science Publishers. This book was released on 2022-08-19 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a compilation of reviews on the industrial usage of soil microorganisms. The contents include 15 brief reviews on different soil microbe assisted industrial processes. Readers will be updated about recent applications of soil bacteria, fungi and algae in sectors such as agriculture, biotechnology, environmental management. The reviews also cover special topics like sustainable agriculture, biodiversity, ecology, and intellectual property rights of patented strains, giving a broad perspective on industrial applications of soil microbes. The text is easy to understand for readers of all levels, with references provided for the benefit of advanced readers.
Book Synopsis Reactive Transport in Porous Media by : Peter C. Lichtner
Download or read book Reactive Transport in Porous Media written by Peter C. Lichtner and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 34 of Reviews in Mineralogy focuses on methods to describe the extent and consequences of reactive flow and transport in natural subsurface systems. Since the field of reactive transport within the Earth Sciences is a highly multidisciplinary area of research, including geochemistry, geology, physics, chemistry, hydrology, and engineering, this book is an attempt to some extent bridge the gap between these different disciplines. This volume contains the contributions presented at a short course held in Golden, Colorado, October 25-27, 1996 in conjunction with the Mineralogical Society of America's (MSA) Annual Meeting with the Geological Society of America in Denver, Colorado.
Book Synopsis Strategies for Accelerating Cleanup at Toxic Waste Sites by : Scott Marshall Payne
Download or read book Strategies for Accelerating Cleanup at Toxic Waste Sites written by Scott Marshall Payne and published by CRC Press. This book was released on 2020-07-26 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerating Cleanup at Toxic Waste Sites: Fast-tracking Environmental Actions and Decision Making presents truly innovative advances in investigative and cleanup technologies, offering valuable solutions that streamline the data collection process, speed up the time it takes to characterize a site, and expedite decision making. Using easy to understand graphic displays, tables, text summaries, and real world case studies, and by synthesizing technical and regulatory reference information crucial to the development of effective cleanup strategies, this book provides the framework for environmental professionals to develop project and program approaches that meet today's needs. An advanced text for those with at least basic understanding of environmental investigation, cleanup, regulations, decision making, and policy development, Accelerating Cleanup at Toxic Waste Sites addresses the "human" side of the environmental industry and why it is perhaps one of the most important considerations for successful accelerated cleanup. This book takes the next step by providing managers, project teams, and other professionals with approaches that bring techniques, regulations, strategies, and people together into one comprehensive package that works.
Book Synopsis In Situ and On-site Bioremediation by : Bruce C. Alleman
Download or read book In Situ and On-site Bioremediation written by Bruce C. Alleman and published by . This book was released on 1997 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics include: Vol.
Book Synopsis Bioremediation of Chlorinated Solvents by : Robert E. Hinchee
Download or read book Bioremediation of Chlorinated Solvents written by Robert E. Hinchee and published by . This book was released on 1995 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil and groundwater contamination stemming from the release of various chlorinated compounds into the environment is a significant and difficult site remediation challenge. The articles in this collection discuss the use of aerobic and anaerobic biological degradation to dehalogenate sites contaminated with pesticides and chlorinated solvents such as trichloroethylene, tetrachloroethene, tetrachloromethene, perchloroethylene, carbon tetrachloride, pentachlorophenol, and chlorinated benzene. Bench- and field-scale studies of the biological processes associated with in situ dechlorination of soil and aquifers are described. Discussed are the uses of microcosm studies and numerical simulation of dechlorination to manage system operation. Site characteristics (e.g., hydraulic properties, temperature, nitrogen availability) and their effect on the stability of the methanotrophic community are examined. Methods discussed include the use of air venting, alternative electron donors, biofilm reactors, surfactants, municipal digester sludge, iron enhancement, and sulfate reduction to improve conditions for the microbial consortia that effect dechlorination.
Book Synopsis Evaluation of Methanotrophic Bacteria During Injection of Gaseous Nutrients for In Situ Trichloroethylene Bioremediation in a Sanitary Landfill by :
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.
