Download or read book Intrinsic Bioremediation of Trichloroethylene contaminated Groundwater at Eielson Air Force Base Alaska written by Kyle A. Gorder and published by . This book was released on 1996 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geoenvironmental Engineering written by Raymond Nen Yong and published by Thomas Telford. This book was released on 1997 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout the world there is an ever increasing awareness of the importance of environmental issues. Pollution of the natural environment is welfare. Nevertheless, economic stability and prosperity necessitate the continuation of such activities and society faces the challenge of minimising the resulting adverse effects. This substantial volume is the proceedings of the British Geotechnical Society's major conference for geo-environmental engineering of contaminated land.

Download or read book Water resources Investigations Report written by and published by . This book was released on 2000 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Potential for Natural Attenuation of Chlorinated Ethenes and Ethanes in Ground Water at a Petrochemical Reclamation Site Harris County Texas written by Glenn F. Huff and published by . This book was released on 2000 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transect Study of the Intrinsic Bioremediation Test Plot written by T. A. Ei and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemistry and Industry written by and published by . This book was released on 1997 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In Situ Bioremediation of Ground Water and Geological Material written by Robert D. Norris and published by DIANE Publishing. This book was released on 1995-08 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a detailed background of the technologies available for the bioremediation of contaminated soil & ground water. Prepared for scientists, consultants, regulatory personnel, & others who are associated in some way with the restoration of soil & ground water at hazardous waste sites. Also provides insights to emerging technologies which are at the research level of formation, ranging from theoretical concepts, through bench scale inquiries, to limited field-scale investigations. 95 tables & figures.

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:

Download or read book Bioremediation of chlorinated solvent contaminated groundwater written by and published by DIANE Publishing. This book was released on with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural Attenuation of Fuels and Chlorinated Solvents in the Subsurface written by Todd H. Wiedemeier and published by John Wiley & Sons. This book was released on 1999-03-08 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive guide to one of today's most innovative approaches to environmental contamination Natural attenuation is gaining increasing attention as a nonintrusive, cost-effective alternative to standard remediation techniques for environmental contamination. This landmark work presents the first in-depth examination of the theory, mechanisms, and application of natural attenuation. Written by four internationally recognized leaders in this approach, the book describes both biotic and abiotic natural attenuation processes, focusing on two of the environmental contaminants most frequently encountered in groundwater--fuels and chlorinated solvents. The authors draw on a wealth of combined experience to detail successful techniques for simulating natural attenuation processes and predicting their effectiveness in the field. They also show how natural attenuation works in the real world, using numerous examples and case studies from a wide range of leading-edge projects nationwide involving fuel hydrocarbons and chlorinated solvents. Finally, they discuss the evaluation and assessment of natural attenuation and explore the design of long-term monitoring programs. An indispensable reference for anyone working in environmental remediation, Natural Attenuation of Fuels and Chlorinated Solvents in the Subsurface is essential reading for scientists and engineers in a range of industries, as well as state and federal environmental regulators, and professors and graduate students in environmental or chemical engineering.

Download or read book Symposium on Natural Attenuation of Chlorinated Organics in Ground Water Held in Dallas TX on September 11 13 1996 written by and published by . This book was released on 1996 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Partial contents: Introductory Talk: Where Are We Now? Moving to a Risk-Based Approach; Introductory Talk: Where Are We Now With Public and Regulatory Acceptance? (Resource Conservation and Recovery Act (RCRA) and Comprehensive Environmental Response, Compensation, and Liability Act CERCLA); Biotic and Abiotic Transformations of Chlorinated Solvents in Ground Water; Microbiological Aspects Relevant to Natural Attenuation of Chlorinated Ethenes; Microbial Ecology of Adaptation and Response in the Subsurface; Identifying Redox Conditions That Favor the Natural Attenuation of Chlorinated Ethenes in Contaminated Ground-Water Systems; Design and Interpretation of Microcosm Studies for Chlorinated Compounds; Conceptual Models for Chlorinated Solvent Plumes and Their Relevance to Intrinsic Remediation; Site Characterization Tools: Using a Borehole Flowmeter To Locate and Characterize the Transmissive Zones of an Aquifer; Overview of the Technical Protocol for Natural Attenuation of Chlorinated Aliphatic Hydrocarbons in Ground Water Under Development for the U.S. Air Force Center for Environmental Excellence; Case Study of Natural Attenuation of Trichloroethene at St. Joseph, Michigan; Extraction of Degradation Rate Constants From the St Joseph, Michigan, Trichloroethene Site; Natural Attenuation of Chlorinated Aliphatic Hydrocarbons at Plattsburgh Air Force Base, New York; Case Study: Natural Attenuation of a Trichloroethene Plume at Picatinny Arsenal New Jersey; Case Study: Plant 44, Tucson, Arizona; Remediation Technology Development Forum Intrinsic Remediation Project at Dover Air Force Base Delaware; Case Study: Wurtsmith Air Force Base, Michigan; Case Study: Eielson Air Force Base, Alaska; Considerations and Options for Regulatory Acceptance of Natural Attenuation in Ground Water Lessons Learned: Risk-Based Corrective Action. p4-5.

Download or read book Trichloroethylene and 1 1 dichloroethylene Concentrations in Ground Water After Temporary Shutdown of the Reclamation Well Field at Air Force Plant 44 Tucson Arizona 1999 written by and published by . This book was released on 2001 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantifying the Removal of Trichloroethylene Via Phytoremediation a Hill Air Force Base Utah Operational Unit 2 Using Recent and Historical Data written by J. Oliver Diamond and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Trichloroethylene (TCE) is a carcinogenic, chlorinated volatile organic compound that was commonly used as a degreasing solvent for aircraft maintenance at many US Air Force bases. Past improper disposal of TCE has resulted in contaminated groundwater at many of these facilities. Phytoremediation, defined as the use of plants and their associated microorganisms to stabilize or remove contamination, has been implemented as part of a TCE groundwater cleanup at Travis Air Force base near Sacramento, CA and is being considered as a remediation option at other bases. Volatilization of TCE from leaves and the surface of the soil near the trees were shown to be the most important removal mechanisms at the Travis site. Past studies conducted on indigenous trees growing above TCE contaminated groundwater at several Hill Air Force Base (HAFB) locations have also shown that TCE is taken up and volatilized by the trees. However, phytoremediation has not been implemented, in part because of the difficulty in predicting the potential effectiveness of TCE removal over time. Flow through or recirculating chambers were used to quantify the amount of TCE removed by volatilization through leaf, trunk, and soil surfaces. Tenax4́Ø sorbent tubes, used to collect TCE from the chambers, were analyzed by thermal desorption gas chromatography/mass spectrometry. Tree cores were collected using an incremental borer and analyzed by headspace GC/MS to quantify the TCE mass contained in the trees. Field measured transpiration stream concentrations (TSC) and groundwater data were used to calculate transpiration stream concentration factors (TSCF) for TCE. Comparing current and historical data, it was found that trees reach a steady state TSCF value of 0.26 after about 15 years. Using this information, it was predicted that a phytoremediation plot containing 40 poplar trees located in a seep area within HAFB OU2 would remove 4.82 kg of TCE annually. A larger plot covering the entire hillside above this seep (160 trees) could remove up to 19.28 kg of TCE annually, once trees reach a steady state TSCF.

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.

Download or read book Fate and Transport of Trichloroethane and Trichloroethylene Contaminated Groundwater Building 719 Dover Air Force Base Delaware written by Kenneth J. Melchiorre and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In Situ Bioremediation of Perchlorate in Groundwater written by Hans F. Stroo and published by Springer Science & Business Media. This book was released on 2008-12-02 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the late 1970s and early 1980s, our nation began to grapple with the legacy of past disposal practices for toxic chemicals. With the passage in 1980 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), commonly known as Superfund, it became the law of the land to remediate these sites. The U. S. Department of Defense (DoD), the nation’s largest industrial organization, also recognized that it too had a legacy of contaminated sites. Historic operations at Army, Navy, Air Force, and Marine Corps facilities, ranges, manufacturing sites, shipyards, and depots had resulted in widespread contamination of soil, groundwater, and sediment. While Superfund began in 1980 to focus on remediation of heavily contaminated sites largely abandoned or neglected by the private sector, the DoD had already initiated its Installation Restoration Program in the mid 1970s. In 1984, the DoD began the Defense Environmental Restoration Program (DERP) for contaminated site assessment and remediation. Two years later, the U. S. Congress codified the DERP and directed the Secretary of Defense to carry out a concurrent program of research, development, and demonstration of innovative remediation technologies. As chronicled in the 1994 National Research Council report, “Ranking Hazardous-Waste Sites for Remedial Action”, our early estimates on the cost and suitability of existing technologies for cleaning up contaminated sites were wildly optimistic. Original estimates, in 1980, projected an average Superfund cleanup cost of a mere $3.

Download or read book Procedures for Addressing Uncertainty and Variability in Exposure to Characterize Potential Health Risk from Trichloroethylene Contaminated Groundwater at Beale Air Force Base in California written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was designed to accomplish two objectives. The first was to provide to the US Air Force and the regulatory community quantitative procedures that they might want to consider using for addressing uncertainty and variability in exposure to better characterize potential health risk. Such methods could be used at sites where populations may now or in the future be faced with using groundwater contaminated with low concentrations of the chemical trichloroethylene (TCE). The second was to illustrate and explain the application of these procedures with respect to available data for TCE in ground water beneath an inactive landfill site that is undergoing remediation at Beale Air Force Base in California. The results from this illustration provide more detail than the more traditional conservative deterministic, screening-level calculations of risk, also computed for purposes of comparison. Application of the procedures described in this report can lead to more reasonable and equitable risk-acceptability criteria for potentially exposed populations at specific sites.