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Aerobic Biodegradation Of Trichloroethylene
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Book Synopsis Aerobic Biodegradation of Trichloroethylene by : M. J. K. Nelson
Download or read book Aerobic Biodegradation of Trichloroethylene written by M. J. K. Nelson and published by . This book was released on 1987 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Samples, suspected of having a capability to biologically transform trichloroethylene (TCE), were provided by Tyndall Air Force Base for verification and characterization of activity. Biological transformation of TCE was not observed in these samples. Other soil and water samples, obtained from the Pensacola area, were therefore screened for TCE degradation activity. One sample was found to be responsible for the metabolic activity was isolated. The isolated organism degrades TCE (up to 3.4 micro mole) to less than 0.02 micro mole within 24 hours. TCE degradation occurred only when water from the original site of isolation and 02 were in the medium. The isolate converted TCE into CO2 and unidentified nonvolatile products. Phenol, toluene ortho- and meta-cresol were found to replace the site water requirement for TCE metabolism.
Book Synopsis Sequential Anaerobic-Aerobic Biodegradation of Trichloroethylene and 1,4-Dioxane by : Alexandra LaPat Polasko
Download or read book Sequential Anaerobic-Aerobic Biodegradation of Trichloroethylene and 1,4-Dioxane written by Alexandra LaPat Polasko and published by . This book was released on 2017 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chlorinated ethenes, such as trichloroethylene (TCE) and their stabilizers, such as 1,4- dioxane, are widespread groundwater contaminants. Bioremediation can be an effective approach, but opposing redox conditions favored by chlorinated ethane-and 1,4-dioxane- degrading bacteria pose a challenge for their concurrent bioremediation. We engineered a microbial community composed of the anaerobic chlorinated ethene-degrading consortium (KB-1i ) and aerobic (Pseudonocardia dioxanivorans CB1190 (CB1190)) bacterial strain, which uses 1,4-dioxane. After anaerobic incubation and TCE reduction, CB1190 + KB-1i coculture was viable and rapidly biodegraded 1,4-dioxane in the presence of oxygen. Aerobic biodegradation of cis-1,2-dichloroethylene (cDCE) by CB1190 was also described. As a plume disperses downgradient, the redox conditions change from anaerobic (source zone) to aerobic (leading edge). The results from this study demonstrate that the engineered microbial community can survive redox changes and biodegrade chlorinated ethenes and 1,4-dioxane. This approach could reduce the cost, energy, and substrates required for in-situ bioremediation of contaminant mixtures.
Book Synopsis Aerobic biodegradation of trichloroethylene by phenol-degrading bacteria in sequencing biofilm reactors by : Shelley Lyn De Wys
Download or read book Aerobic biodegradation of trichloroethylene by phenol-degrading bacteria in sequencing biofilm reactors written by Shelley Lyn De Wys and published by . This book was released on 1992 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experiments in Aerobic and Anaerobic Biodegradation of Trichloroethylene by : Qiong Liao
Download or read book Experiments in Aerobic and Anaerobic Biodegradation of Trichloroethylene written by Qiong Liao and published by . This book was released on 1991 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The removal of trichloroethylene (TCE) from industrial waste has been intensively studied in recent years, Biodegradation has been determined to be an effective treatment for TCE in the environment. Many researchers have studied the biodegradation of TOE and obtained successful results based on the use of specific isolated bacteria. At the NJIT Biotechnology Laboratory, a new method is being developed in which immobilized activated sludge is used to degrade several toxic chemicals in various reactor configurations. The objective of this research is to determine if these methods can be extended to treat TCE. Activated sludge from a wastewater treatment plant was acclimated with TCE and then used in aerobic experi ments. Some commonly and effectively used methods from our laboratory, such as membrane, shaker flask, and microassav reactors were studied with activated sludge. In the membrane reactor experiment, microorganisms from activated sludge were immobilized on microporous plastic sheet (MPS) by attachment. TCE solution was pumped through the reactor containing microorganisms attached on MPS sheet and TCE variation was analyzed with GC. Experiments were conducted in batch recirculation flow mode, A series of shaker flask experiments were constructed to check the result of preinduction for activated sludge with some inducers. The activity of activated sludge was studied by examining the oxygen uptake in a microassay reactor. This reactor has been a valuable tool in the enzyme kinetic studies due to its reproducibility and accuracy of the data acquired. Anaerobic sludge was also used in this study, and taken from a secondary treatment plant. It was digested in an anaerobic digester with a specific nutrient medium and then incubated in an incubator at 37°C for anaerobic treatment. In shaker flask experiments, TCE was degraded by NJIT activated and preinduced sludge with inducers. Biodegradation rates were found to be 0.36, 0.49, 0.44, 0.32 nmol/min per mg of dry biomass with sodium acetate, phenol, toluene, and sodium benzoate, respectively. They are greater than the rates for bacterial strains 46-1, G4, and Alcaligenes eutrophus JMP134 reported in the literature. However, the results of the membrane reactor, the microassay reactor, and the anaerobic experiments indicate that TCE biodegradation rates are far lower than typical biodegradation rate, which is 2.4 nmol/min per mg of dry biomass, for phenol, chlorophenol, and other substrates in NJIT Biodegradation System.
Book Synopsis Sequential Anaerobic-aerobic Biodegradation of Trichloroethylene Using Polyvinyl Alcohol Immobilized Cells as a Permeable Barrier Technology by : Jatin M. Panchal
Download or read book Sequential Anaerobic-aerobic Biodegradation of Trichloroethylene Using Polyvinyl Alcohol Immobilized Cells as a Permeable Barrier Technology written by Jatin M. Panchal and published by . This book was released on 2003 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Variables Affecting Enhanced Trichloroethylene and 1,2-dichloroethane Aerobic Biodegradation on Aquifer Material by : Nancy Anne Lanzarone
Download or read book Variables Affecting Enhanced Trichloroethylene and 1,2-dichloroethane Aerobic Biodegradation on Aquifer Material written by Nancy Anne Lanzarone and published by . This book was released on 1988 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Soil Moisture, Temperature, Oxygen, and Trichloroethylene on Aerobic Biodegradation of Fuels in Soil by : Brent A. Adams
Download or read book The Effect of Soil Moisture, Temperature, Oxygen, and Trichloroethylene on Aerobic Biodegradation of Fuels in Soil written by Brent A. Adams and published by . This book was released on 1998 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerobic Degradation of Trichloroethylene, Vinyl Chloride, and Aromatic Compounds by Rhodococci Species by : Kenneth Jay Malachowsky
Download or read book Aerobic Degradation of Trichloroethylene, Vinyl Chloride, and Aromatic Compounds by Rhodococci Species written by Kenneth Jay Malachowsky and published by . This book was released on 1992 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Survival and Activity Retention of Pseudomonas Putida Metabolically Engineered for Aerobic Biodegradation of Trichloroethylene in Simulated Groundwater Microcosms by : Nicole Eileen Nasso
Download or read book Survival and Activity Retention of Pseudomonas Putida Metabolically Engineered for Aerobic Biodegradation of Trichloroethylene in Simulated Groundwater Microcosms written by Nicole Eileen Nasso and published by . This book was released on 2003 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biodegradation of Trichloroethylene by Unsaturated Aerobic Fixed- Film Bioreactors Using Methane as the Primary Substrate by : Francisco E. Carranza
Download or read book Biodegradation of Trichloroethylene by Unsaturated Aerobic Fixed- Film Bioreactors Using Methane as the Primary Substrate written by Francisco E. Carranza and published by . This book was released on 1990 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater 2000 written by Poul L. Bjerg and published by CRC Press. This book was released on 2000-01-01 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings, with cd-rom, present a comprehensive overview of advances in groundwater research. The five main topics covered are: aquifers and contaminant distribution; groundwater quality; natural attenuation; remediation technologies and groundwater protection. Groundwater 2000 is a useful resource to both scientists and to those working in the field.
Book Synopsis Investigation of Aerobic Cometabolic Biodegradation of Trichloroethylene Using Phenol as a Primary Substrate by : Stan Eugene Parrott
Download or read book Investigation of Aerobic Cometabolic Biodegradation of Trichloroethylene Using Phenol as a Primary Substrate written by Stan Eugene Parrott and published by . This book was released on 2000 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerobic Trichloroethylene Biodegradation in Continuous-recycle Expanded-bed Bioreactors by : John Joseph Niedzielski
Download or read book Aerobic Trichloroethylene Biodegradation in Continuous-recycle Expanded-bed Bioreactors written by John Joseph Niedzielski and published by . This book was released on 1988 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of an Aerobic Consortium for the Degradation of Trichloroethylene by : Liliana Meza
Download or read book Evaluation of an Aerobic Consortium for the Degradation of Trichloroethylene written by Liliana Meza and published by . This book was released on 2003 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Cometabolic Degradation of Trichloroethylene Under Aerobic Conditions by : Richard H. Oliver
Download or read book The Cometabolic Degradation of Trichloroethylene Under Aerobic Conditions written by Richard H. Oliver and published by . This book was released on 1993 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enhancing Aerobic Biological Degradation of Trichloroethylene and Metal Lubricants by : Sachiyo Iwashita
Download or read book Enhancing Aerobic Biological Degradation of Trichloroethylene and Metal Lubricants written by Sachiyo Iwashita and published by . This book was released on 2004 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerobic Whole-cell and Enzymatic Degradation of Trichloroethylene and Tetrachloroethylene for Waste Minimization by : Jian Wang
Download or read book Aerobic Whole-cell and Enzymatic Degradation of Trichloroethylene and Tetrachloroethylene for Waste Minimization written by Jian Wang and published by . This book was released on 2001 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
