Download or read book In Situ Biodegradation of Nitroaromatic Compounds in Soil written by Don L. Crawford and published by . This book was released on 1994 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Situ Biodegradation of Nitroaromatic Compounds in Soil written by and published by . This book was released on 1994 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitroaromatic compounds, particularly nitrotoluenes used as explosives and nitroaromatic herbicides such as dinoseb, are serious environmental contaminants at industrial locations nationwide. Research performed during the 1970s (15,18) generally indicated that complete biomineralization of 2,4,6-trinitrotoluene (TNT) and similar highly nitrated compounds did not occur. Biological reductions (R-NO2-R-NO-R-NHOH-R-NH2) and polymerization reactions appeared to occur, but actual degradation of aromatic nuclei was not observed. However, this work involved studies of aerobic systems such as activated sludge and thermophilic composts, and pure culture studies of aerobic fungi and bacteria such as pseudomonads. Pure cultures of some anaerobic bacteria such as Veillonella alcalescens (35) were examined, with similar results. Boopathy and Kulpa (2) recently isolated a Desulfovibrio that used TNT as a sole source of nitrogen, producing toluene as-an end product. A Pseudomonas that produced dinitrotoluene-, mononitrotoluene, and toluene from TNT, perhaps by hydride additions was isolated by Duque et al. (10). These are still incomplete degradations of the parent molecule. Since the Desulfovibrio strain required obligately anaerobic conditions.
Download or read book Augmentation to in Situ Biodegradation of Nitroaromatic Compounds in Soil written by and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have determined that an organism able to degrade both RDX and TNT in a pure culture is a strain of Clostridium bifermentans. The consortium from which this organism is derived also degrades these compounds, and we suspect that C. bifermentans is also the responsible organism within that consortium. The bioconversion of RDX and TNT occurs under anaerobic conditions both in the consortium and in pure culture without the need of an added reductant. The presence of co-metabolites speeded these biotransformations.
Download or read book Biodegradation of Nitroaromatic Compounds and Explosives written by Jim C. Spain and published by CRC Press. This book was released on 2000-06-14 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filled with practical applications and research, Biodegradation of Nitroaromatic Compounds and Explosives presents an international perspective on environmental contamination from explosives. It covers biodegradation strategies for DNT and a wide variety of other nitroaromatic compounds of environmental significance and makes the information access
Download or read book Biodegradation of Nitroaromatic Compounds written by Jim C. Spain and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past five years increased awareness of environmental contamination by nitroaromatic compounds has led to a dramatic increase in research on their biodegradation. The resulting discoveries have markedly extended our understanding of degradation mecha nisms and pathways in bacteria and fungi. Futhermore, this new basic knowledge promises the development of field applications of biodegradation systems for nitroaromatic com pounds. In May of 1994, an International Symposium on the Biodegradation of Nitro aromatic Compounds was held in Las Vegas, Nevada. This symposium brought together the scientists at the frontiers of research into the biodegradation of nitro aromatic compounds. The invited speakers were asked to review their area of expertise and write a critical, comprehensive synthesis of their work and related work by others. This book is the result of their efforts. The emphasis of the reviews is on basic research in biodegradation and biotransfor mation. Therefore, the reactions of nitroaromatic compounds in plants, animals, bacteria, fungi, soil, and even nonbiological systems are considered. The goal of the work is to provide the reader with an appreciation of the tremendous range of possibilities for metabolism of aromatic nitro compounds and the experimental approaches used to understand them. This volume should be of interest to biochemists, microbiologists, engineers, toxicologists, and anyone interested in the behavior of synthetic chemicals in the environment or in living systems. Furthermore, a variety of commercial applications can be envisioned for some of the reactions described here.
Download or read book J R Simplot Ex situ Bioremediation Technology for Treatment of TNT contaminated Soils written by and published by . This book was released on 1995 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioremediation of Nitroaromatic and Haloaromatic Compounds written by Bruce C. Alleman and published by . This book was released on 1999 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sites contaminated with explosive compounds, pesticides, herbicides, PCBs, and other aromatic compounds present formidable technical, regulatory, and financial challenges. The application of bioremediation technologies to such sites offers the promise of cost-effective site remediation that can serve as a key component of a well-formulated strategy for achieving site closure. This volume presents the results of bench-, pilot-, and field-scale projects focused on the use of biological approaches to remediating problem compounds, such as RDX, HMX, TNT, DDT, 2, 4-D, nitro- and chlorobenzenes, nitroaniline, chloroaniline, hexachlorobenzene, PCPs, PCBs, and dichlorophenol in soils and groundwater.
Download or read book Biological Remediation of Explosive Residues written by Shree Nath Singh and published by Springer Science & Business Media. This book was released on 2013-08-04 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial degradation, Phytoremediation, Remediation, Explosive residues, Biotransformation, Mineralization, Degradative Enzymes, Degradation Pathways, Energetics, Soil contamination, Water contamination.
Download or read book In Situ Bioremediation written by National Research Council and published by National Academies Press. This book was released on 1993-02-01 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: In situ bioremediationâ€"the use of microorganisms for on-site removal of contaminantsâ€"is potentially cheaper, faster, and safer than conventional cleanup methods. But in situ bioremediation is also clouded in uncertainty, controversy, and mistrust. This volume from the National Research Council provides direction for decisionmakers and offers detailed and readable explanations of: the processes involved in in situ bioremediation, circumstances in which it is best used, and methods of measurement, field testing, and modeling to evaluate the results of bioremediation projects. Bioremediation experts representing academic research, field practice, regulation, and industry provide accessible information and case examples; they explore how in situ bioremediation works, how it has developed since its first commercial use in 1972, and what research and education efforts are recommended for the future. The volume includes a series of perspective papers. The book will be immediately useful to policymakers, regulators, bioremediation practitioners and purchasers, environmental groups, concerned citizens, faculty, and students.
Download or read book In Situ Bioremediation and Natural Attenuation of Dinitrotoluenes and Trinitrotoluene written by Sungsoo Han and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Contamination of soils and groundwater with nitroaromatic compounds such as 2,4,6-trinitrotoluene (TNT) and dinitrotoluenes (DNTs) has drawn considerable attention due to widely distributed contamination sites and substantial efforts for cleanup. Two isomers of DNT, specifically 2,6-dinitrotoluene (2,6-DNT) and 2,4-dinitrotoluene (2,4-DNT), occur as soil and groundwater contaminants at former TNT production sites. The discovery of bacteria that use DNT isomers as electron donors has encouraged bioremediation at contaminated sites. Current work is extending the existing engineered bioremediation to naturally occurring in situ biodegradation and focuses on the application of natural attenuation (NA) as a remediation strategy for residual DNT at contaminated sites. More specifically this research evaluated factors influencing in situ bioremediation of DNTs and TNT in surface soils, vadose zones, and saturated medium. Applications involving surface soils and vadose zones investigated the potential of water infiltration to promote in situ bioremediation. Studies in saturated media were more applicable to NA. Factors that were also considered in studies conduced included: 1) the presence and distribution of degrading microbes in field soils (Barksdale, WI); 2) the dissolution and bioavailability of contaminants in historically contaminated soils; and 3) the effect of mixtures of contaminants (i.e., DNTs and TNT) on biodegradation processes.
Download or read book Development of an Ex situ Anaerobic Biodegradation Process for the Remediation of Soils Contaminated with the Nitroaromatic Herbicide Dinoseb 2 sec butyl 4 6 dinitrophenol written by Russell Kaake and published by . This book was released on 1994 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Bioremediation written by Javid A. Parray and published by John Wiley & Sons. This book was released on 2021-03-22 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: SOIL BIOREMEDIATION A practical guide to the environmentally sustainable bioremediation of soil Soil Bioremediation: An Approach Towards Sustainable Technology provides the first comprehensive discussion of sustainable and effective techniques for soil bioremediation involving microbes. Presenting established and updated research on emerging trends in bioremediation, this book provides contributions from both experimental and numerical researchers who provide reports on significant field trials. Soil Bioremediation instructs the reader on several different environmentally friendly bioremediation techniques, including: Bio-sorption Bio-augmentation Bio-stimulation Emphasizing molecular approaches and biosynthetic pathways of microbes, this one-of-a-kind reference focuses heavily on the role of microbes in the degradation and removal of xenobiotic substances from the environment and presents a unique management and conservation perspective in the field of environmental microbiology. Soil Bioremediation is perfect for undergraduate students in the fields of environmental science, microbiology, limnology, freshwater ecology and microbial biotechnology. It is also invaluable for researchers and scientists working in the areas of environmental science, environmental microbiology, and waste management.
Download or read book Bioremediation of Pollutants in Soil and Water written by Brian S. Schepart and published by ASTM International. This book was released on 1995 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproduced typescripts of 17 papers from a symposium in Fort Worth, Texas, in October 1993 discuss technical aspects of biological methods for cleaning up polluted sites. They cover the economics of bioremediation compared with other methods, the special problems associated with polynuclear aromatic
Download or read book In Situ and On site Bioremediation written by Bruce C. Alleman and published by . This book was released on 1997 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics include: Vol.
Download or read book Ex Situ Enhanced Biodegradation of Hydrocarbon Contaminated Soil Utilizing an Engineered Bioventing System written by Simon Bluestone and published by . This book was released on 1992 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remediation Engineering of Contaminated Soils written by Donald L. Wise and published by CRC Press. This book was released on 2000-07-25 with total page 1011 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers thorough coverage of the remediation of soils contaminated by hazardous wastes, including materials, analytical techniques, cleanup design and methodology, characterization of geomedia, monitoring of contaminants in the subsurface, and waste containment. Cites specific case studies in hydrocarbon remediation that offer a concise overview of possible technological approaches.
Download or read book Petroleum Biodegradation and Oil Spill Bioremediation written by Karuna K. Arjoon and published by CRC Press. This book was released on 2022-12-22 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prime focus of the book is to determine the mechanism, extent, and efficiency of biodegradation processes, as it is necessary to know the composition of the original crude oil or crude oil product. The technology of bioremediation and the concerns of whether or not bioremediation technologies can accelerate this natural process enough to be considered practical, and, if so, whether they might find a niche as replacements for, or adjuncts to, other crude oil-spill response technologies. This book also introduces the reader to the science of the composition of crude oil and crude oil products is at the core of understanding the chemistry of biodegradation and bioremediation processes.
