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 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 Reductive Dechlorination of Polychlorinated Biphenyls PCBS in Marine Harbor Sediments written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the first time reductive dechlorination of PCBs was shown to occur in marine and estuarine microcosms from sites with ambient temperatures below 10 degrees centigrade. It was shown that the types of activities are influenced by the location of the site and the ambient temperature. In addition, it is now clear that non-indigenous dechlorinating organisms can be added to sediments microcosms to dechlorinate PCBs. These studies suggest that reductive dechlorination of PCBs has the potential to occur in coastal regions with lower ambient temperatures. The result also suggest that active biotreatment of PCB impacted dredge spoils by augmentation may be possible in colder climates.
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 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 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 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 Microbial and Chemical Reductive Dechlorination of Polychlorinated Biphenyls and Chlorinated Benzenes written by Loring Frederick Nies and published by . This book was released on 1993 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 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 Assessment of in Situ Reductive Dechlorination of Polychlorinated Biphenyls PCBs as a Monitored Natural Attenuation Process in Contaminated Sediment from Lake Hartwell South Carolina written by Usarat Pakdeesusuk and published by . This book was released on 2002 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Water Quality Guidelines for Polychlorinated Biphenyls in Coastal and Estuarine Waters written by Dwayne R. J. Moore and published by . This book was released on 1991 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A literature review was conducted on the physical and chemical properties of polychlorinated biphenyls (PCBS), their concentrations in the marine environment, their fate and persistence, their bioaccumulation, and their toxicity to marine biota. The information is summarized in this publication. From it, a Canadian water quality guideline is developed for PCBs to ensure the protection and maintenance of marine aquatic biota"--Abstract.
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 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 Determination of Polychlorinated Biphenyls PCBs in Sediment and Biota written by Lynda Webster and published by . This book was released on 2013 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Dehalorespiring Bacteria in the Reductive Dechlorination of Polychlorinated Biphenyls in Baltimore Harbor Sediment Microcosms written by Sonja Kristine Fagervold and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
