Download or read book Microbial Reductive Dechlorination of Polychlorinated Biphenyls PCBs in Anaerobic Freshwater Sediments written by Qingzhong Wu and published by . This book was released on 1996 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rates of Microbial Dechlorination of Polychlorinated Biphenyls PCBs in Anaerobic Sediments from Waukegan Harbor by J B Risatti Prepared for the Illinois Hazardous Waste Research and Information Center written by James Bruno Risatti and published by . This book was released on 1992 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reductive Dechlorination of Polychlorinated Biphenyls in Marine Sediments written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Partial Contents: Reductive Dechlorination of Polychlorinated Biphenyls in Marine Sediments, Microbial Dechlorination of 2,3,5,6-Tetrachlorobiphenyl under Anaerobic Conditions in the Absence of Soil or Sediment, Anaerobic ortho Dechlorination of Polychlorinated Biphenyls by Estuarine Sediments from Baltimore Harbor, Characterization of a Defined 2,3,5,6-Tetrachlorobiphenyl-ortho- Dechlorinating Microbial Community by Comparative Sequence Analysis of Genes Coding for 16S rRNA, Microbial Reductive Dechlorination of Aroclor 1260 in Anaerobic Slurries of Estuarine Sediments, Differential RFLP patterns of PCR-amplified 16S rDNA from anaerobic PCB-dechlorinating estuarine and marine sediment enrichments, . Site-Dependence of ortho, meta, and para Dechlorination of PCBs by Anaerobic Estuarine and Marine Sediment Enrichments.

Download or read book Enhancement of Site Specific Anaerobic Reductive Dechlorination of Polychlorinated Biphenyls written by Matthew John Zwiernik and published by . This book was released on 1998 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reductive Dehalogenation of Polybrominated and Polychlorinated Biphenyls by Anaerobic Microorganisms from Sediment written by Pamela Jo Morris and published by . This book was released on 1992 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Enrichment of Microbial Reductive Dechlorination of Polychlorinated Biphenyls in Sediments written by Tao Yan and published by . This book was released on 2004 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Microbial Communities Associated with Anaerobic Reductive Dechlorination of Polychlorinated Biphenyls in River Sediments written by Christine Hsiao-Ting Wang and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of PCB polychlorobiphenyl Dechlorination by Anaerobic Microorganisms from Hudson River Sediments written by Dingyi Ye and published by . This book was released on 1994 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Anaerobic Dechlorination of Polychlorinated Biphenyls in Aquatic Sediments written by Matthew B. Hollifield and published by . This book was released on 1993 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Collaborative Research Microbal Reductive Dechlorination of Polychlorinated Biphenyls PCBs in Estuarine and Marine Coastal Sediments written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many years researchers have tried to identify and monitor PCB dechlorinating bacteria. Strains o-17 and DF-1 are the first PCB dechlorinating bacteria to be identified. These organisms have proven to be very difficult to grow in pure culture thus far. However, for the first time molecular approaches (165 rDNA analysis) has ben combined with enrichment culture technique to identify these organisms. This is a significant breakthrough that will advance the application of bioremediation and it proves that such an approach can be used to identify difficult to culture environmental microorganisms, which is to say most microorganisms. Now for the first time these organisms can be monitored in order to better understand their physiology and to track the organisms in situ, before, during and after active and passive remediation attempts.

Download or read book Biostimulation of Polychlorinated Biphenyl pcb Dechlorination in Sediments of Escambia Bay Florida written by Brittany Elise Young and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Polychlorinated biphenyls (PCBs) contaminate the sediments of Escambia Bay in Pensacola, Florida. Given the right conditions anaerobic bacteria in sediments are capable of degrading PCBs by dechlorinating the molecule. The objective of this study is to assess, in the laboratory, conditions that may stimulate the naturally occurring bacteria in Escambia Bay to degrade the PCBs. The study may have implications for in situ treatment of contaminated sediments like these in Escambia Bay. Sediments were treated with three different electron donors (pyruvate, iron sulfide and elemental iron) that would stimulate the microbes to use the PCBs as an electron acceptor. Each treatment was tested in triplicate and allowed to dechlorinate for five months in an anaerobic environment. After five months, all three treatments resulted in a decrease in PCB concentration in sediment spiked with 2,3'4,4'5-pentachlorobiphenyl (congener 118) and in sediment spiked with Aroclor 1254. Unspiked PCB contaminated sediments showed a less consistent decrease in total PCB concentration for the various treatments. These results show that the bacteria found in Escambia Bay sediments can be stimulated to remediate the PCB contamination. Further research could develop this method into a viable in situ remediation strategy to address the contamination in Escambia Bay.

Download or read book PCBs written by Larry W. Robertson and published by University Press of Kentucky. This book was released on 2015-01-13 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: In April 2000 researchers from around the world met in Lexington, Kentucky to bring together the very latest information on the chemistry and biological effects of the environmental pollutants known as Polychlorinated Biphenyls (PCBs). The result is a comprehensive and extensive treatment of the very latest findings on all significant subjects relating to PCBs and their health risks. The thorough introduction and sixty-two scientific papers presented here represent the most up-to-date research by scientists in government, private industry, and academia.

Download or read book In Situ Enhancement of Anaerobic Microbial Dechlorination of Polychlorinated Dibenzo p dioxins and Dibenzofurans in Marine and Estuarine Sediments written by and published by . This book was released on 2006 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The management of marine and estuarine sediments contaminated with toxic organic compounds, including polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), is a major problem with far-reaching economic and ecological consequences. Enhancement of microbial degradation of PCDD/Fs in situ is an attractive remediation alternative that could potentially detoxify sediments, avoid the problematic redistribution of contaminants that is associated with dredging, and decrease the cost of sediment management. Reductive dehalogenation is a promising mechanism for the removal of toxic organohalides from estuarine and marine sediments. Anaerobic dechlorination of PCDD/Fs has been reported in marine and estuarine sediments, however, rates are slow and the activity may be the result of a combination of both respiratory and cometabolic processes. For in situ bioremediation, it would be most desirable to stimulate respiratory dechlorination, which is typically associated with higher dechlorination rates. Anaerobic reductive dechlorination is the first step required for the ultimate complete degradation of highly chlorinated PCDD/F congeners. Therefore, identification of the organisms involved, determination of their dechlorinating potential, characterization of how they compete for reducing equivalents with other members of the community, and development of strategies for enhancing their dehalogenating activities, are all needed. The overarching goal of this project, therefore, was to identify environmental conditions and amendments that enhance and accelerate dechlorination of PCDD/Fs by indigenous microbial populations and to identify the organisms responsible for the dechlorination using biomolecular methods. Results from this project show that anaerobic dehalogenation of PCDD/Fs was readily promoted in estuarine, marine and freshwater, sediments from several sites. This project has expanded our understanding of the microorganisms that carry out dehalogenation of PCDD/Fs.

Download or read book Identification of a Bacterium that Reductively Dechlorinates Polychlorinated Biphenyls written by Leah A. Cutter and published by . This book was released on 2000 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microbial catalyzed Reductive Dechlorination of Polychlorinated Biphenyl PCBs in Hudson and Grasse River Sediment shifts of Microorganisms PCB Tracker Pairs and Geochemical Properties written by Yan Xu and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reductive Dechlorination of Polychlorinated Biphenyls and the Population Dynamics of Dechlorinating Microorganisms in Contaminated Sediments written by Jongseol Kim and published by . This book was released on 1997 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Forensics written by Robert D. Morrison and published by Elsevier. This book was released on 2010-08-04 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental forensics is the application of scientific techniques for the purpose of identifying the source and age of a contaminant. Over the past several years, this study has been expanding as a course of study in academia, government and commercial markets. The US Environmental Protection Agency (EPA), Federal Bureau of Investigation (FBI), and Federal Emergency Management Agency (FEMA) are among the governmental agencies that utilize the study of environmental forensics to ensure national security and to ensure that companies are complying with standards. Even the International Network for Environmental Compliance and Enforcement (INECE), a group supported by the European Commission and the World Bank, utilizes the study of environmental forensics as it applies to terror threats.This title is a hands-on guide for environmental scientists, engineers, consultants and industrial scientists to identify the origin and age of a contaminant in the environment and the issues involved in the process. An expansion of the authors' first title with Academic Press, Introduction to Environmental Forensics, this is a state-of-the-art reference for those exploring the scientific techniques available. - Up-to-date compendium for referencing forensic techniques unique to particular contaminants. - International scientific unit system - Contributors from around the world providing international examples and case studies.