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Reductive Dechlorination Of Carbon Tetrachloride By Ferrous Sulfide Under Anaerobic Conditions
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Book Synopsis Reductive Dechlorination of Carbon Tetrachloride by Ferrous Sulfide Under Anaerobic Conditions by : Kun-Yu Lin
Download or read book Reductive Dechlorination of Carbon Tetrachloride by Ferrous Sulfide Under Anaerobic Conditions written by Kun-Yu Lin and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abiotic Reductive Dechlorination of Carbon Tetrachloride by Iron Sulfide Coatings on Iron Minerals by : Rebecca Jill Hanoch
Download or read book Abiotic Reductive Dechlorination of Carbon Tetrachloride by Iron Sulfide Coatings on Iron Minerals written by Rebecca Jill Hanoch and published by . This book was released on 2003 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Factors Affecting the Reductive Dechlorination of Carbon Tetrachloride by Zero-valent Iron by : Amanda S. Mutziger
Download or read book Factors Affecting the Reductive Dechlorination of Carbon Tetrachloride by Zero-valent Iron written by Amanda S. Mutziger and published by . This book was released on 1996 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Toxicological Profile for Carbon Tetrachloride by : Syracuse Research Corporation
Download or read book Toxicological Profile for Carbon Tetrachloride written by Syracuse Research Corporation and published by . This book was released on 2005 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Reductive Dechlorination of Tetrachloroethylene, Trichloroethylene, and Carbon Tetrachloride Mixtures by Anaerobic Bacteria by : Rebecca Davis
Download or read book The Reductive Dechlorination of Tetrachloroethylene, Trichloroethylene, and Carbon Tetrachloride Mixtures by Anaerobic Bacteria written by Rebecca Davis and published by . This book was released on 1999 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reaction Mechanisms in Environmental Engineering by : James G. Speight
Download or read book Reaction Mechanisms in Environmental Engineering written by James G. Speight and published by Butterworth-Heinemann. This book was released on 2018-08-13 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reaction Mechanisms in Environmental Engineering: Analysis and Prediction describes the principles that govern chemical reactivity and demonstrates how these principles are used to yield more accurate predictions. The book will help users increase accuracy in analyzing and predicting the speed of pollutant conversion in engineered systems, such as water and wastewater treatment plants, or in natural systems, such as lakes and aquifers receiving industrial pollution. Using examples from air, water and soil, the book begins with a clear exposition of the properties of environmental and inorganic organic chemicals that is followed by partitioning and sorption processes and sorption and transformation processes. Kinetic principles are used to calculate or estimate the pollutants' half-lives, while physical-chemical properties of organic pollutants are used to estimate transformation mechanisms and rates. The book emphasizes how to develop an understanding of how physico-chemical and structural properties relate to transformations of organic pollutants. - Offers a one-stop source for analyzing and predicting the speed of organic and inorganic reaction mechanisms for air, water and soil - Provides the tools and methods for increased accuracy in analyzing and predicting the speed of pollutant conversion in engineered systems - Uses kinetic principles and the physical-chemical properties of organic pollutants to estimate transformation mechanisms and rates
Book Synopsis Surface Complexation Modeling by : David A. Dzombak
Download or read book Surface Complexation Modeling written by David A. Dzombak and published by John Wiley & Sons. This book was released on 1991-01-16 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a description of the thermodynamic model, data treatment procedures and the thermodynamic constants for hydrous ferric oxide. Includes detailed coverage of the model and the parameter extraction procedure.
Book Synopsis Toxicological Profile for Carbon Tetrachloride by :
Download or read book Toxicological Profile for Carbon Tetrachloride written by and published by . This book was released on 1994 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abiotic Reductive Dechlorination of Tetrachloroethylene and Trichloroethylene in Anaerobic Environments by :
Download or read book Abiotic Reductive Dechlorination of Tetrachloroethylene and Trichloroethylene in Anaerobic Environments written by and published by . This book was released on 2009 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tetrachloroethylene (PCE) and trichloroethylene (TCE) are among the most frequently detected ground water contaminants at industrial sites, including many DoD facilities. Due to the high cost and uneven performance of traditional remediation technologies, monitored natural attenuation is emerging as a new technology for ground water remediation of pollutants such as these. In addition, there is growing interest in active remediation technologies that employ abiotic minerals. PCE and TCE are susceptible to reductive dechlorination by microorganisms as well as reduced minerals such as iron sulfide (FeS). Unlike biological reductive dechlorination, which often results in accumulation of harmful intermediates such as cis 1,2-dichloroethylene (cis-DCE) and vinyl chloride (VC), abiotic mineral-mediated dechlorination of PCE and TCE tends to result in complete transformation to non-toxic products such as acetylene. To more accurately apply natural attenuation and other remediation technologies, a greater understanding of the geochemical factors affecting the rates of purely abiotic reductive dechlorination of PCE and TCE is needed. Additional tools are also needed to determine whether or not abiotic reductive dechlorination is occurring at a particular site, and its relative importance compared to microbial dechlorination under a variety of geochemical conditions.
Book Synopsis Reductive Dechlorination of Carbon Tetrachloride by Magnetite by : Karlin Mai Danielsen
Download or read book Reductive Dechlorination of Carbon Tetrachloride by Magnetite written by Karlin Mai Danielsen and published by . This book was released on 2004 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chlorinated Solvents by : Robert D Morrison
Download or read book Chlorinated Solvents written by Robert D Morrison and published by Royal Society of Chemistry. This book was released on 2015-11-09 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental forensics is emerging and evolving into a recognized scientific discipline with numerous applications, especially regarding chlorinated solvents. This unique book provides the reader with a concise compilation of information regarding the use of environmental forensic techniques for age dating and identification of the source of a chlorinated solvent release. Concentrating on the five commonly encountered chlorinated solvents (perchloroethylene, trichloroethylene, methyl chloroform, carbon tetrachloride and CFC-113), forensic opportunities applicable to each are presented including the use of stabilizers, manufacturing impurities, surrogate chemicals and physical measurements and degradation products as diagnostic indicators. Detailed historical chronology of the applications of the solvents and specific chapters devoted to dry cleaning and vapor degreasing equipment are included as are generic forensic approaches. Forming a basis for further ideas in the evolution of environmental forensic techniques, Chlorinated Solvents will be an indispensable reference tool for researchers, regulators and analysts in the field.
Book Synopsis Biological Dechlorination of Tetrachloroethene Under Anaerobic Conditions by : Thomas Dominic DiStefano
Download or read book Biological Dechlorination of Tetrachloroethene Under Anaerobic Conditions written by Thomas Dominic DiStefano and published by . This book was released on 1992 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Remediation Engineering by : Suthan S. Suthersan
Download or read book Remediation Engineering written by Suthan S. Suthersan and published by CRC Press. This book was released on 2016-11-25 with total page 1286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remediation engineering has evolved and advanced from the stage of being a sub-discipline of environmental engineering into its own engineering discipline supporting the growth of a global industry. This fully-updated second edition will capture the fundamental advancements that have taken place during the last two decades, within the sub-disciplines that form the foundation of the remediation engineering platform. The book will cover the entire spectrum of current technologies that are being employed in this industry, and will also touch on future trends and how practitioners should anticipate and adapt to those needs.
Book Synopsis Standard Methods for the Examination of Water and Wastewater by : Phoenix Chambers
Download or read book Standard Methods for the Examination of Water and Wastewater written by Phoenix Chambers and published by Scientific e-Resources. This book was released on 2019-06-07 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of expanding interest for consumable and water system water, water providers need to utilize elective assets. They either need to recover wastewater or manage sullied surface water. This book unites the encounters of different specialists in getting ready of creative materials that are specific for arsenic and chromium expulsion, and developing some imaginative procedures to separate these components from water. The book ought to be of high enthusiasm to designers and chiefs in charge of generation and conveyance of safe water. They examined the logical ideas and commonsense means for the arrangement of the perplexing social, financial and biological issues related with water cleansing, utilization, preservation, and security. The book is the principal ever logical work routed to two most unsafe components showing up in water and gives a thorough survey of materials and strategies valuable for making the water safe. The book talks about in detail the different creation systems for sorbents and layers that are presently financially accessible or show up in the advancement arrange and will be popularized in the following decades.
Book Synopsis Transformation of Carbon Tetrachloride and Chloroform by Trichloroethene Respiring Anaerobic Mixed Cultures and Supernatant by : Kyle E. Vickstrom
Download or read book Transformation of Carbon Tetrachloride and Chloroform by Trichloroethene Respiring Anaerobic Mixed Cultures and Supernatant written by Kyle E. Vickstrom and published by . This book was released on 2016 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon tetrachloride (CT) and chloroform (CF) were transformed in batch reactor experiments conducted with anaerobic dechlorinating cultures and supernatant (ADC+S) harvested from continuous flow reactors. The Evanite (EV-5L) and Victoria/Stanford (VS-5L) cultures capable of respiring trichloroethene (TCE), 1,2-cis-dichloroethene (cDCE), and vinyl chloride (VC) to ethene (ETH) were grown in continuous flow reactors receiving an influent feed of saturated TCE (10 mM; 60 mEq) and formate (45 mM; 90 mEq) but no CT or CF. In all experiments, cells and supernatant were harvested from the chemostats and inoculated into batch reactors. Transformation of various concentrations of CT (0.86, 2.6, or 8.6 [micro]M), CF (2.1 or 21.1 [micro]M), dichloromethane (DCM; 23.1 [micro]M), and TCE (50 [micro]M) was examined. CT transformation was complete and exhibited pseudo-first order kinetics with CF as the primary measured transformation product in all treatments. Lesser amounts of DCM and carbon disulfide (CS2) were measured leading to an overall mass balance of 20-40% of the original mass as CT accounted for. An analytical first order solution was developed to model CT degradation and product formation under multiple conditions. Cells poisoned with 50 mM sodium azide (NaN3) catalyzed rapid and complete CT transformation suggesting a greater importance of redox active cofactors than live cells in the abiotic and cometabolic transformation. DCM and CS2 however were not produced in the poisoned treatments. TCE and CT simultaneous transformation occurred with an approximately two-fold increase in the CT degradation rate while maintaining complete TCE respiration to ETH. During the initial round of TCE respiration, the rate limiting step was VC to ETH, which was impacted by the presence of CT and CF. A subsequent addition of 50 [micro]M TCE showed a substantial decline in the rates of reductive dechlorination owing to the inhibitory effects of long term exposure to CF. The results clearly demonstrate that transformation can be promoted by anaerobic dechlorinating cultures and supernatant not previously acclimated to CT and CF. However, abiotic reactions account for much of the observed transformation. The role of CF inhibition on H2 utilization by the culture was also explored. Sodium formate was provided as a rapid release substrate, providing H2 as an electron donor. H2 partial pressures were tracked throughout the course of the kinetic experiments. The rapid transformation of CT to CF made it not possible to determine if CT inhibited H2 use by the anaerobic dechlorinating cultures. However, the rapid buildup and subsequent slow transformation of CF was found to reversibly inhibit H2 consumption for homoacetogenesis. It was found that an aqueous CF concentration above 0.4 [micro]M or 0.6 [micro]M inhibited H2 consumption by the EV-5L and VS-5L cultures, respectively. This result differed for the VS-5L culture when metabolizing TCE in the presence of CT and CF. The VS-5L culture consumed H2 at CF concentrations as high as 1.3 [micro]M. The culture may have been partially inhibited at CF concentrations greater than 0.6 [micro]M, which is shown by slower consumption of H2 than controls that did not contain CF. The results demonstrate that CF reversibly inhibits the consumption of H2 by the anaerobic dechlorinating cultures, and that more research is required to determine if it is through a chemical inhibition or toxicity.
Book Synopsis Toxicological Profile for Carbon Tetrachloride by : U.S. Department of Health and Human Services
Download or read book Toxicological Profile for Carbon Tetrachloride written by U.S. Department of Health and Human Services and published by . This book was released on 2003 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dechlorination of Carbon Tetrachloride with Zero-valent Iron Under Initially Oxic and Anoxic Conditions by : Bradley R. Helland
Download or read book Dechlorination of Carbon Tetrachloride with Zero-valent Iron Under Initially Oxic and Anoxic Conditions written by Bradley R. Helland and published by . This book was released on 1996 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: