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A Co Metabolic Approach To Groundwater Remediation
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Book Synopsis A Co-metabolic Approach to Groundwater Remediation by :
Download or read book A Co-metabolic Approach to Groundwater Remediation written by and published by . This book was released on 1991 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: In support of the US Department of Energy's (DOE) Integrated Demonstration (Cleanup of Organics in Soils and Groundwater at Non-arid Sites) at the Savannah River Site (SRS), Oak Ridge National Laboratory (ORNL) and the University of Tennessee (UT) are involved in demonstrations of the use of methanotrophs in bioreactors for remediation of contaminated groundwater. In preparation for a field demonstration at ORNL's K-25 Site in Oak Ridge, Tennessee, ORNL is conducting batch experiments, is operating a number of bench-scale bioreactors, has designed pretreatment systems, and has modified a field-scale bioreactor provided by the Air Force Engineering and Services Center for use at the site. UT is operating bench-scale bioreactors with the goal of determining the stability of a trichloroethylene-degrading methanotrophic consortia during shifts in operating conditions (e.g. pH, nutrient inputs, and contaminant mixtures). These activities are all aimed at providing the knowledge base necessary for successful treatment of contaminated groundwater at the SRS and K-25 sites as well as other DOE sites. 18 refs., 1 fig., 1 tab.
Book Synopsis Bioremediation and Natural Attenuation by : Pedro J. Alvarez
Download or read book Bioremediation and Natural Attenuation written by Pedro J. Alvarez and published by John Wiley & Sons. This book was released on 2005-12-16 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: A groundbreaking text and professional resource on natural attenuation technology Natural attenuation is rapidly becoming a widely used approach to manage groundwater and soil contamination by hazardous substances in petroleum-product releases and leachate from hazardous waste sites and landfills. This book provides, under one cover, the current methodologies needed by groundwater scientists and engineers in their efforts to evaluate subsurface contamination problems, to estimate risk to human health and ecosystems through mathematical models, and to design and formulate appropriate remediation strategies. Incorporating the authors' extensive backgrounds as educators, researchers, and consultants in environmental biotechnology and hydrogeology, the text emphasizes new concepts and recent advances in the science, including: Quantification of the role of microbes in natural attenuation Biodegradation and chemical transformation principles Immobilization and phase change Biotransformation mechanisms Groundwater flow and contaminant transport Analytical models for contaminant transport and reaction processes Numerical modeling of contaminant transport, transformation, and degradation Detailed descriptions of fundamental processes, characterization approaches, and analytical and numerical methods tied to relevant real-world applications make Bioremediation and Natural Attenuation: Process Fundamentals and Mathematical Models both a timely course text in hydrogeology and environmental engineering and a valuable reference for anyone in the groundwater or risk assessment professions.
Author :United States. Department of Energy. Environmental Restoration Conference Publisher : ISBN 13 : Total Pages :980 pages Book Rating :4.F/5 ( download)
Book Synopsis Environmental Remediation '91 by : United States. Department of Energy. Environmental Restoration Conference
Download or read book Environmental Remediation '91 written by United States. Department of Energy. Environmental Restoration Conference and published by . This book was released on 1991 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Commission on Geosciences, Environment, and Resources Publisher :National Academies Press ISBN 13 :0309132800 Total Pages :288 pages Book Rating :4.3/5 (91 download)
Book Synopsis Natural Attenuation for Groundwater Remediation by : Commission on Geosciences, Environment, and Resources
Download or read book Natural Attenuation for Groundwater Remediation written by Commission on Geosciences, Environment, and Resources and published by National Academies Press. This book was released on 2000-07-31 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decade, officials responsible for clean-up of contaminated groundwater have increasingly turned to natural attenuation-essentially allowing naturally occurring processes to reduce the toxic potential of contaminants-versus engineered solutions. This saves both money and headaches. To the people in surrounding communities, though, it can appear that clean-up officials are simply walking away from contaminated sites. When is natural attenuation the appropriate approach to a clean-up? This book presents the consensus of a diverse committee, informed by the views of researchers, regulators, and community activists. The committee reviews the likely effectiveness of natural attenuation with different classes of contaminants-and describes how to evaluate the "footprints" of natural attenuation at a site to determine whether natural processes will provide adequate clean-up. Included are recommendations for regulatory change. The committee emphasizes the importance of the public's belief and attitudes toward remediation and provides guidance on involving community stakeholders throughout the clean-up process. The book explores how contamination occurs, explaining concepts and terms, and includes case studies from the Hanford nuclear site, military bases, as well as other sites. It provides historical background and important data on clean-up processes and goes on to offer critical reviews of 14 published protocols for evaluating natural attenuation.
Author :United States. Government Accountability Office Publisher :DIANE Publishing ISBN 13 :142893104X Total Pages :46 pages Book Rating :4.4/5 (289 download)
Book Synopsis Groundwater Contamination by : United States. Government Accountability Office
Download or read book Groundwater Contamination written by United States. Government Accountability Office and published by DIANE Publishing. This book was released on 2005 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Department of Defense (DOD) has identified nearly 6,000 sites at its facilities that require groundwater remediation and has invested $20 billion over the past 10 years to clean up these sites. As directed by Public Law 108-375 and as agreed, GAO described current DOD groundwater remediation technologies and examined whether any new technologies are being used or developed outside the department that may have potential for DOD's use, and the extent to which DOD is researching and developing new approaches to groundwater remediation.
Book Synopsis A Modeling Study for the Implementation of in Situ Cometabolic Bioremediation of Trichloroethylene-Contaminated Groundwater by : John Christ
Download or read book A Modeling Study for the Implementation of in Situ Cometabolic Bioremediation of Trichloroethylene-Contaminated Groundwater written by John Christ and published by . This book was released on 1997-12-01 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The limitations of conventional groundwater remediation technologies have led to the development of innovative technologies which may achieve national hazardous waste site remediation goals. Before an innovative technology can be implemented in the field, remedial project managers, regulators and other stakeholders require adequate modeling tools to help assess the applicability of the technology at a particular site. This modeling study investigates how an innovative technology, in situ cometabolic bioremediation, might be implemented to remediate a TCE-contaminated site, under different site conditions. A steady- state model is developed which couples an analytical expression to simulate the effect of flow between multiple pumping and injection wells, with an expression to calculate TCE removal as groundwater circulates through in situ bioreactors established around the injection wells. Varying site conditions and well configurations are investigated to determine their effect on the overall treatment efficiency of a system. A dual screen well design is found to be an effective method for contaminant capture and treatment given typical values of anisotropy. Investigation of a multiple row implementation concept proves it to be an effective configuration for site cleanup. The model is integrated into interactive software which serves as a technology screening tool.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-02 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pump-and-treat Ground-water Remediation by :
Download or read book Pump-and-treat Ground-water Remediation written by and published by . This book was released on 1996 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Groundwater Contamination by : Anu K. Mittal (au)
Download or read book Groundwater Contamination written by Anu K. Mittal (au) and published by DIANE Publishing. This book was released on 2005-11 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: To date, the Dept. of Defense (DoD) has identified nearly 6,000 sites at its facilities that require groundwater remediation (GR) & has invested $20 billion over the past 10 years to clean up these sites. In the past, DoD primarily used pump-&-treatÓ technologies to contain or eliminate hazardous contaminants in groundwater. However, the long cleanup times & high costs of using pump-&-treat technologies often make them expensive & ineffective for GR. This report: described current DoD GR technologies; & examined whether any new technologies are being used or developed outside the Department that may have potential for DoD's use & the extent to which DoD is researching & developing new approaches to GR. Charts & tables.
Book Synopsis Physicochemical Groundwater Remediation by : James A. Smith
Download or read book Physicochemical Groundwater Remediation written by James A. Smith and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: As we transition into the 21st century, it is apparent that this is an exciting time for environmental engineers and scientists studying remediation technologies. There has been a rapid development of new ways to clean-up polluted groundwater. Research activities of the past and next 10 years will have a dramatic impact on the quality of the subsurface environment for the next century. In 20, or even 10 years from now, our approach to subsurface remediation will probably be vastly different than it is today. Many of the emerging technologies presented in this book will form the basis of standard remediation practices of the future. Physicochemical Groundwater Remediation presents detailed information on multiple emerging technologies for the remediation of the contaminated subsurface environment. All of these technologies apply our knowledge of physical and chemical processes to clean up ground water and the unsaturated zone, and many (if not all) of these emerging technologies will help define standard practices in the future. These technologies include in situ sorptive and reactive treatment walls, surfactant-enhanced aquifer remediation, optimization analyses for remediation system design, chemical, electrochemical, and biochemical remediation processes, and monitored natural attenuation. You will learn how palladium catalyzes the dehalogenation of chlorinated solvents. You will find out how barometric pumping can naturally remove significant quantities of volatile organic pollutants from shallow ground water and the unsaturated zone. You can learn about mobilizing non-aqueous phase liquids (NAPLs) without risking significant downward migration of the NAPL. You can find out how processes such as electroosmosis and electromigration can be exploited for groundwater remediation purposes and how zero-valent iron and zeolite treatment walls can be used in situ to treat and control contaminant plume migration. Contributors to this book are experts in groundwater remediation processes, and they represent industry, consulting, academia, and government. If your work involves the clean up of contaminated soil and groundwater, this book is an essential reference to keep you up to date on the most promising new developments in remediation research.
Book Synopsis Groundwater Research and Issues by : William B. Porter
Download or read book Groundwater Research and Issues written by William B. Porter and published by Nova Publishers. This book was released on 2008 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of lithologic formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become fully saturated with water is called the water table. Groundwater is recharged from, and eventually flows to, the surface naturally; natural discharge often occurs at springs and seeps, streams and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology. Typically groundwater is thought of as liquid water flowing through shallow aquifers, but technically it can also include soil moisture, permafrost (frozen soil), immobile water in very low permeability bedrock, and deep geothermal or oil formation water. Groundwater is hypothesised to provide lubrication which can possibly aid faults to move. This book presents important research in the field.
Book Synopsis Delivery and Mixing in the Subsurface by : Peter K. Kitanidis
Download or read book Delivery and Mixing in the Subsurface written by Peter K. Kitanidis and published by Springer Science & Business Media. This book was released on 2012-04-23 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is meant to provide the practitioner with information on the natural mixing processes occurring in aquifers as well as to describe basic strategies that can be implemented to enhance mixing in particular cases. For example, when it comes to mixing miscible liquids, one can speed up mixing in the formation by manipulating the flow such as through the use of recirculation wells. Furthermore, much of the mixing can be achieved partially within recirculation wells themselves, where contaminated water is admixed with additives, volatile products may be removed through a vapor mass exchanger, etc. Thus, adding mixing wells can significantly increase the performance of the delivery and mixing system and speed up the process of remediation.
Book Synopsis In Situ Chemical Oxidation for Groundwater Remediation by : Robert L. Siegrist
Download or read book In Situ Chemical Oxidation for Groundwater Remediation written by Robert L. Siegrist and published by Springer Science & Business Media. This book was released on 2011-02-25 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides comprehensive up-to-date descriptions of the principles and practices of in situ chemical oxidation (ISCO) for groundwater remediation based on a decade of intensive research, development, and demonstrations, and lessons learned from commercial field applications.
Book Synopsis A New Approach to Groundwater Remediation Treatability Studies by : Kristin McClellan
Download or read book A New Approach to Groundwater Remediation Treatability Studies written by Kristin McClellan and published by . This book was released on 2013 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: In situ remediation of contaminated aquifers, specifically in situ bioremediation (ISB), has gained popularity over pump-and-treat operations. It represents a more sustainable approach that can also achieve complete mineralization of contaminants in the subsurface. However, the subsurface reality is very complex, characterized by hydrodynamic groundwater movement, geological heterogeneity, and mass-transfer phenomena governing contaminant transport and bioavailability. These phenomena cannot be properly studied using commonly conducted laboratory batch microcosms lacking realistic representation of the processes named above. Instead, relevant processes are better understood by using flow-through systems (sediment columns). However, flow-through column studies are typically conducted without replicates. Due to additional sources of variability (e.g., flow rate variation between columns and over time), column studies are expected to be less reproducible than simple batch microcosms. This was assessed through a comprehensive statistical analysis of results from multiple batch and column studies. Anaerobic microbial biotransformations of trichloroethene and of perchlorate were chosen as case studies. Results revealed that no statistically significant differences were found between reproducibility of batch and column studies. It has further been recognized that laboratory studies cannot accurately reproduce many phenomena encountered in the field. To overcome this limitation, a down-hole diagnostic device (in situ microcosm array - ISMA) was developed, that enables the autonomous operation of replicate flow-through sediment columns in a realistic aquifer setting. Computer-aided design (CAD), rapid prototyping, and computer numerical control (CNC) machining were used to create a tubular device enabling practitioners to conduct conventional sediment column studies in situ. A case study where two remediation strategies, monitored natural attenuation and bioaugmentation with concomitant biostimulation, were evaluated in the laboratory and in situ at a perchlorate-contaminated site. Findings demonstrate the feasibility of evaluating anaerobic bioremediation in a moderately aerobic aquifer. They further highlight the possibility of mimicking in situ remediation strategies on the small-scale in situ. The ISMA is the first device offering autonomous in situ operation of conventional flow-through sediment microcosms and producing statistically significant data through the use of multiple replicates. With its sustainable approach to treatability testing and data gathering, the ISMA represents a versatile addition to the toolbox of scientists and engineers.
Book Synopsis Microbes Based Approaches for the Management of Hazardous Contaminants by : Ajay Kumar
Download or read book Microbes Based Approaches for the Management of Hazardous Contaminants written by Ajay Kumar and published by John Wiley & Sons. This book was released on 2024-07-08 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn the various microbiological aspects one deals with in environment management and the remediation of toxic contaminants in the environment In recent years, the accumulation of hazardous contaminants has caused a broad-based deterioration in global environmental quality. These have had wide-ranging negative social impacts, affecting climate, soil and water ecosystems, and more. As traditional methods of contaminant mitigation have proven inadequate to the task, microbial-based remediation offers the clearest, most environmentally friendly path forward for this crucial aspect of global environmental stewardship. Microbes Based Approaches for the Management of Hazardous Contaminants offers comprehensive coverage of novel and indigenous microbes and their applications in contaminant mitigation. Surveying all the major microbial products and methods for degrading and remediating hazardous pollutants, it offers a key tool in the fight against global environmental degradation. The result is a cutting-edge introduction to an essential subject. Microbes Based Approaches for the Management of Hazardous Contaminants will also find: Current and future approaches to microbial degradation Detailed discussion of biofilms, exopolysaccharides, enzymes, metabolites, and many more Coverage of metabolic engineering as an alternative strategy Microbes Based Approaches for the Management of Hazardous Contaminants is ideal for those working in the field for the application of microbes in the remediation of hazardous pollutants and environment management, particularly those interested in environmental sciences, microbiology and microbial technology, environmental biotechnology, and molecular biology.
Book Synopsis Soil and Groundwater Remediation Technologies by : Yong Sik Ok
Download or read book Soil and Groundwater Remediation Technologies written by Yong Sik Ok and published by CRC Press. This book was released on 2020-03-23 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers various soil and water treatment technologies due to increasing global soil and water pollution. In many countries, the management of contaminated land has matured, and it is developing in many others. Topics covered include chemical and ecological risk assessment of contaminated sites; phytomanagement of contaminants; arsenic removal; selection and technology diffusion; technologies and socio-environmental management; post-remediation long-term management; soil and groundwater laws and regulations; and trace element regulation limits in soil. Future prospects of soil and groundwater remediation are critically discussed in this book. Hence, readers will learn to understand the future prospects of soil and groundwater contaminants and remediation measures. Key Features: Discusses conventional and novel aspects of soil and groundwater remediation technologies Includes new monitoring/sensing technologies for soil and groundwater pollution Features a case study of remediation of contaminated sites in the old, industrial, Ruhr area in Germany Highlights soil washing, soil flushing, and stabilization/solidification Presents information on emerging contaminants that exhibit new challenges This book is designed for undergraduate and graduate courses and can be used as a handbook for researchers, policy makers, and local governmental institutes. Soil and Groundwater Remediation Technologies: A Practical Guide is written by a team of leading global experts in the field.
Book Synopsis Introduction to Phytoremediation of Contaminated Groundwater by : James E. Landmeyer
Download or read book Introduction to Phytoremediation of Contaminated Groundwater written by James E. Landmeyer and published by Springer Science & Business Media. This book was released on 2011-09-18 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader with the comprehensive view necessary to understand and critically evaluate the design, implementation, and monitoring of phytoremediation at sites characterized by contaminated groundwater. Part I presents the historical foundation of the interaction between plants and groundwater, introduces fundamental groundwater concepts for plant physiologists, and introduces basic plant physiology for hydrogeologists. Part II presents information on how to assess, design, implement, and monitor phytoremediation projects for hydrologic control. Part III presents how plants take up and detoxify a wide range of organic xenobiotics in contaminated groundwater systems, and provides various approaches on how this can be assessed and monitored. Throughout, concepts are emphasized with numerous case studies, illustrations and pertinent literature citations.
