Download or read book Impacts of Methyl Tertiary Butyl Ether on California Groundwater and an Evaluation of the Potential for Natural Attenuation written by Mary Elizabeth and published by . This book was released on 2001 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evaluation of MTBE Impacts to California Groundwater Resources written by Anne M. Happel and published by . This book was released on 1998 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evaluation of MTBE Impacts to California Groundwater Resources written by Anne M. Happel and published by . This book was released on 2001-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methyl tertiary-butyl ether (MTBE) is a fuel oxygenate added to gasoline to reduce air pollution and increase octane ratings. This chemical has resulted in frequent detections of MTBE in samples of groundwater from urban areas in the U.S. Limited contamination of drinking water has also occurred and is of concern because MTBE is considered a human carcinogen by the EPA and has a disagreeable taste and odor at low concentrations. This report focuses on the inadvertent release of this compound to the environment from leaking underground fuel tanks with the goal of providing info. on the potential for MTBE to impact California's groundwater resources.
Download or read book Managing the Risks of Exposure to Methyl Tertiary Butyl Ether MTBE Contamination in Ground Water at Leaking Underground Storage Tank LUST Sites written by Matthew C. Small and published by . This book was released on 2003 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mtbe written by Jacques Guertin and published by CRC Press. This book was released on 2000-09-28 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an expert team of scientists, engineers, and toxicologists, MTBE: Effects on Soil and Ground-Water Resources provides complete in-depth coverage of the assessment and potential remediation strategies of methyl tertiary-butyl ether (MTBE). In addition to a history and overview of fuel oxygenates and MTBE, the book contains the latest info
Download or read book Water Pollution Risks of Methyl Tertiary Butyl Ether MTBE written by United States. Congress. Senate. Committee on Environment and Public Works and published by . This book was released on 1998 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MTBE Remediation Handbook written by Ellen Moyer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is a comprehensive and up-to date compendium of the technology and management of MTBE contamination, exploring the myths which impede successful clean-up techniques, and offering effective solutions. Section I looks at the history, properties, occurrence and assessment of MTBE. Section II discusses applicable remediation technologies. Section III offers remediation case studies.
Download or read book Methyl Tert Butyl Ether MTBE Its Movement and Fate in the Environment and Potential for Natural Attenuation written by and published by . This book was released on 1999 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the approach to be rollowed when evaluating the natural attenuation or MTBE and other fuel oxygenate and considers the consequences or the unique physical and chemical characteristics and their resultant behavior in the environment.
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 2000-08-31 with total page 289 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.
Download or read book Methyl Tert Butyl Ether MTBE Its Movement and Fate in the Environment and Potential for Natural Attenuation Slide Presentation written by and published by . This book was released on 1999 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: This slide presentation summarizes the approach to be followed when evaluating the natural attenuation or MTBE and other fuel oxygenate and considers the consequences or the unique physical and chemical characteristics and their resultant behavior in the environment.
Download or read book Methodology for Applying Monitored Natural Attenuation to Petroleum Hydrocarbon contaminated Ground water Systems with Examples from South Carolina written by and published by . This book was released on 2000 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Health Environmental Assessment of MTBE Ground surface water written by and published by . This book was released on 1998 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Social Costs of an MTBE Ban in California written by Gordon C. Rausser and published by . This book was released on 2004 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methyl tertiary butyl ether Contamination in Groundwater in the San Diego and North Coast Areas of California written by Errick Philip Llamas and published by . This book was released on 2014 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MTBE methyl Tertiary Butyl Ether written by Association of California Water Agencies and published by . This book was released on 1998 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Giannini Foundation Research Report written by and published by . This book was released on 2004 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impacts of Back Diffusion and Biodegradation on MTBE TBA Plumes and Impacts of Spills of Ethanol blended Biofuels on Groundwater written by Ehsan Rasa and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fate and transport of bromide tracer, gasoline oxygenates including methyl tert-butyl ether (MTBE), tert-butyl alcohol (TBA), ethanol, and selected petroleum hydrocarbons (benzene, toluene, and o-xylene [BToX]) are studied and simulated using data from field experiments at Site 60, Vandenberg Air Force Base (VAFB), CA. Conservative tracer experiments can provide information useful for characterizing various subsurface transport properties. High resolution data from a 410-day controlled field experiment at VAFB are used to construct and calibrate a groundwater flow and transport model. The effectiveness of three different types of transport observations (conservative tracer breakthrough curves, first temporal moments of breakthrough curves, and tracer mass discharge through control planes combined with hydraulic head observations) are evaluated for sensitivity analysis and parameter estimation of the site-specific flow and transport model. Results showed the advantages of using temporal moment of conservative tracer and mass discharge as observations for inverse modeling. First temporal moments provided feedback to the model and remained sensitive within a wider range of parameter values than did the other approaches and even when the observed and simulated breakthrough curves did not overlap or the peak concentrations were not similar. Following a gasoline spill in late 1994 at VAFB, several excavations of the spill area were performed in 1995, 2007, and 2008. However, an MTBE/TBA plume persisted for over 15 years within 200 feet of the original spill source. Available monitoring data and published details about the source are used to develop a two-dimensional reactive transport model of MTBE and its potential metabolite TBA. The analyses suggested that MTBE diffused from the thin anaerobic aquifer into the adjacent anaerobic silts and transformed to TBA in both aquifer and silt layers. At later times TBA was the dominant solute, diffusing back out of the silts into the aquifer, and sustaining plume concentrations much longer than would have been the case in the absence of such diffusive exchange. Aerobic degradation of MTBE or TBA at the water table in the overlying silt layer is shown by the simulations to limit the mass available for back diffusion to the aquifer. Decreased biodegradation rates of BToX resulting from co-release of ethanol lead to longer plumes than in the absence of ethanol as co-contaminant, and thus potentially greater risks may be posed by gasohol spills. In a previous field study at VAFB, two plumes were created by re-injecting extracted groundwater spiked with BToX in one side, and BToX plus ethanol in another side for 283 days. A field-calibrated reactive transport model is developed in this study to evaluate the impact of ethanol on fate and transport of BToX species. The model was developed by stepwise inclusion of various reaction processes, as suggested by comparison of model simulations to field data, and drawing on literature for insight into reaction rates and constraints. This iterative process illustrates the limitations of models if not calibrated to or at least founded on field data. Best fits to the experimental data were achieved by incorporating the processes of ethanol fermentation, anaerobic methane oxidation, three dimensional mixing, and microbial growth. The final simulations matched temporal histories for electron donors, acceptors, and products quite well. In particular, the simulations matched the observations that the benzene plume in the With-Ethanol Lane was about 4.5 times longer than in the No-Ethanol Lane due to the slower natural attenuation rate of benzene in the presence of ethanol. This model, which incorporates more reaction processes than models previously applied to investigate ethanol impacts on BTEX fate, can be used to better understand the rate limiting processes, evaluate impacts under different geochemical conditions, and recommend potential remediation techniques.
