Download or read book Ecological Interactions Between Metals and Microbes That Impact Bioremediation written by Allan E. Konopka and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous work showed the correlation between bacterial biomass, population structure and the amount of lead, chromium and aromatic compounds present along a 21.6 m transect in which the concentrations of both heavy metals (Pb and Cr) and aromatic compounds varied 2-3 orders of magnitude. This work suggested that (a) biomass level was better correlated to the level of biodegradable organic C than the level of heavy metals, (b) microbial community composition differed between highly contaminated soils and uncontaminated ones, and (c) substantial microbial activity was found even in the highly contaminated soils. One confounding factor in these analyses was that the contaminated soils contained Pb, Cr, and aromatic hydrocarbons. Therefore, it was difficult to determine which factors were most important in the shifts of microbial community composition. Therefore, experiments were conducted in microcosms in which individual factors could be systematically varied. In this case, soils were used from the Seymour, IN site which had low levels of contamination, and the microbial community had little chance to adapt to heavy metals or aromatic compounds.
Download or read book Ecological Interactions Between Metals and Microbes That Impact Bioremediation written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial Community Diversity at a Mixed Waste Contaminated Site The correlation between bacterial population structure and lead, chromium and organic compounds present along a 21.6 m transect was examined. There was a gradient of heavy metal (Cr and Pb) and petroleum hydrocarbon contamination in these soils. A 16S rDNA analysis method and fatty acid methyl esters derived from phospholipids (PLFA) analysis were used to compare microbial communities. Soil microbial DNA was extracted and community fingerprint patterns for each sample location were produced by DGGE separation of the V3 region of the 16S rRNA genes amplified by PCR. Visual analysis of DGGE patterns indicated that sample locations with high concentrations of total toluene (12,000 mg kg-1), xylenes (8,000 mg kg-1), methylene chloride (10,000 mg kg-1), lead (17,000 mg kg-1) and chromium (3,200 mg kg-1) have a different community composition from the community with lower metals (200 mg kg-1) and organics (1200 mg kg-1) content. Microbial biomass, indicated by total phospholipid-P, was greatest in soils with highest organic contamination.
Download or read book Handbook of Metal Microbe Interactions and Bioremediation written by Surajit Das and published by CRC Press. This book was released on 2017-04-07 with total page 813 pages. Available in PDF, EPUB and Kindle. Book excerpt: Around the World, metal pollution is a major problem. Conventional practices of toxic metal removal can be ineffective and/or expensive, delaying and exacerbating the crisis. Those communities dealing with contamination must be aware of the fundamentals advances of microbe-mediated metal removal practices because these methods can be easily used and require less remedial intervention. This book describes innovations and efficient applications for metal bioremediation for environments polluted by metal contaminates.
Download or read book Ecological Interactions Between Metals and Microbes that Impact Bioremediation written by Allan Konopka and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Distinct microbial communities had been found in contaminated soils that varied in their concentrations of Pb, Cr and aromatic compounds. It is difficult to distinguish between their effects as their presence is highly correlated. Microcosms were constructed in which either Pb{sup +2} or CrO{sub 4}{sup -2} was added at levels that produced acute modest or severe acute effects (50 or 90% reduction). We previously reported on changes in microbial activity and broad patterns of Bacterial community composition. These results showed that addition of an organic energy source selected for a relatively small number of phylotypes and the addition of Pb or Cr(VI) modulated the community response. We sequenced dominant phylotypes from microcosms amended with xylene and Cr(VI) and from those with the simple addition of glucose only. In both cases, the dominant selected phylotypes were diverse. We found a number of distinct Arthrobacter strains, as well as several Pseudomonas spp. In addition, the high GC-content bands belonged to members of the genera Nocardioides and Rhodococcus. The focus of amended microcosm work has now shifted to anaerobic processes. The reduction of Cr(VI) to Cr(III) as a detoxification mechanism is of greater interest, as is the specific role of particular physiological groups of anaerobes in mediating Cr(VI) detoxification. The correlation between microbial activity, community structure, and metal level has been analyzed on 150 mg of soil collected at spatial scales
Download or read book Environmental Bioremediation Technologies written by S.N. Singh and published by Springer Science & Business Media. This book was released on 2007-02-05 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioremediation is an eco-friendly, cost-effective and natural technology targeted to remove heavy metals, radionuclides, xenobiotic compounds, organic waste, pesticides etc. from contaminated sites or industrial discharges through biological means. Since this technology is used in in-situ conditions, it does not physically disturb the site unlike conventional methods i.e. chemical or mechanical methods.
Download or read book Bio Geo Interactions in Metal Contaminated Soils written by Erika Kothe and published by Springer Science & Business Media. This book was released on 2012-01-06 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal contamination is an increasing ecological and eco-toxicological risk. Understanding the processes involved in metal mobilization, sorption and mineralization in soils are key features for soil bioremediation. Following an introduction to the physical, chemical and biological components of contaminated soils, various chapters address the interactions of soil, microorganisms, plants and the water phase necessary to transfer metals into biological systems. These include topics such as potential hazards at mining sites; rare earth elements in biotic and abiotic acidic systems; manganese redox reactions; biomineralisation, uranium in seepage water; metal-resistant streptomycetes; mycorrhiza in re-forestation; metal (hyper)accummulation in plants; microbial metal uptake; and their potential for bioremediation. This book will be of interest to soil biologists, geologists and chemists, researchers and graduate students, as well as consulting companies and small enterprises involved in bioremediation.
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 Environmental Impacts of Soil Component Interactions written by P.M. Huang and published by CRC Press. This book was released on 2023-07-21 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the interactions of soil minerals with organics and microbes and their impacts on the dynamics, transformations, and toxicity of metals, metalloids, other inorganics, and xenobiotics that affect land quality and ecosystem health. It is the result of the work group on "interactions of soil minerals with organic components and microorganisms" in the International Society of Soil Science.
Download or read book Microbial Biodegradation and Bioremediation written by Surajit Das and published by Elsevier. This book was released on 2014-07-01 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial Biodegradation and Bioremediation brings together experts in relevant fields to describe the successful application of microbes and their derivatives for bioremediation of potentially toxic and relatively novel compounds. This single-source reference encompasses all categories of pollutants and their applications in a convenient, comprehensive package. Our natural biodiversity and environment is in danger due to the release of continuously emerging potential pollutants by anthropogenic activities. Though many attempts have been made to eradicate and remediate these noxious elements, every day thousands of xenobiotics of relatively new entities emerge, thus worsening the situation. Primitive microorganisms are highly adaptable to toxic environments, and can reduce the load of toxic elements by their successful transformation and remediation. - Describes many novel approaches of microbial bioremediation including genetic engineering, metagenomics, microbial fuel cell technology, biosurfactants and biofilm-based bioremediation - Introduces relatively new hazardous elements and their bioremediation practices including oil spills, military waste water, greenhouse gases, polythene wastes, and more - Provides the most advanced techniques in the field of bioremediation, including insilico approach, microbes as pollution indicators, use of bioreactors, techniques of pollution monitoring, and more
Download or read book Bacteria Metal Interactions written by Daad Saffarini and published by Springer. This book was released on 2015-05-20 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed description and analysis of the reduction and metabolism of metals and metalloids by sulfate reducing bacteria. The molecular mechanisms of bacterial resistance to copper are examined as well as extracellular electron transfer and bacterial metal oxide respiration. Furthermore, in this book enrichment, isolation, and physiology of magnetotactic bacteria are discussed. The interactions of bacteria with metals in natural environments and their role in metal cycling have been studied for decades. Advances in studies of bacteria-metal interactions identified numerous important aspects of these interactions, such as bioremediation of metal-contaminated environments, the role of metals in redox reactions and other cellular functions, as well as the role of metals in toxicity and infection. Microbiologists, environmental scientists, and students interested in microbe interactions with metals and their effect on the environment and their application in biotechnology will be interested in the topics discussed in the book.
Download or read book Microbes for Sustainable Development and Bioremediation written by Ram Chandra and published by CRC Press. This book was released on 2019-12-13 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbes are the predominant form of life on the planet due to their broad range of adaptation and versatile nutritional behavior. The ability of some microbes to inhabit hostile environment incompatible with most forms of life means that their habitat defines the extent of the biosphere and delineates the barrier between the biosphere and geosphere. The direct and indirect role of microbes that include bacteria, fungi, actinomycetes, viruses, mycoplasma, and protozoans are very much important in development of modern human society for food, drugs, textiles, agriculture, and environment. Furthermore, microorganisms and their enzyme system are responsible for the degradation of various organic matters. Microbes for Sustainable Development and Bioremediation emphasizes the role of microbes for sustainable development of ecosystem. Environmental microbiology role in biogeochemical cycle and bioremediation of environmental waste is major theme, which comprises the following aspects: Bacterial phytoextraction mechanism of heavy metals by native hyperaccumulator plants from complex waste-contaminated site for eco-restoration Role of microbial enzyme for eco-friendly recycling of industrial waste Field-scale remediation of crude oil–contaminated desert soil and treatment technology Microbial technology for metal recovery from e-waste printed circuit board Impact of genomic data on sustainability of ecosystem Methane monooxygenases: their regulations and applications Role of microbes in environmental sustainability and food preservation This book will be directly beneficial to researchers and classroom students, in areas of biotechnology, environmental microbiology, molecular biology, and environmental engineering with specialized collection of cutting-edge knowledge.
Download or read book Biodegradation and Bioremediation written by Blaise Lindsey and published by Scientific e-Resources. This book was released on 2018-10-11 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodegradation is the break down of organic matter by microbes. Bioremediation is an engineered technique applied by people to clean up organic matter by helping microbes with the biodegradation process. One way of doing that is to introduce oxygen into the subsurface to help more aerobic microbes grow in order to clean up oil in the soil.The potential toxicity (harmful action) inherent in a substance is manifest only when that substance comes in contact with that susceptible living biological system. A chemical normally thought of as "e;harmless"e; will evoke a toxic response if added to a biological system in sufficient amount. The toxic potency of a chemicals is defined by the relationship between dose (the amount) of the chemical and the response that is produced in a biological system. The toxicity of industrial wastes is not often managed and it has caused serious damage to earth and water. The most important aspect of environmental biotechnology is the effective management of hazardous and toxic pollutants (xenobiotics) by bioremediation. The environmental clean-up process through bioremediation can be achieved in two ways-in situ and ex situ bioremediation. The book aims to provide relevant theoretical and practical frameworks and the latest empirical research findings in this area, along with case studies. It is written for students, academicians and industry professionals who want to improve their understanding of the strategic role of biodegradation and bioremediation at different levels of the biodegradation and bioremediation research and knowledge, that is, heavy metal pollution, toxicity, remediation methods and strategies to manage the waste in industries, which are a global concern.
Download or read book Heavy Metals in the Environment written by Edgardo R. Donati and published by CRC Press. This book was released on 2018-01-03 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as a knowledge bank for researchers and graduate students in microbiology, chemistry, and environmental sciences, among others. It focuses on heavy metal in the environment and describes methodologies to immobilize and mobilize heavy metals. It also provides case studies which may be of particular interest to persons in industry.
Download or read book Microbiology for Minerals Metals Materials and the Environment written by Abhilash and published by CRC Press. This book was released on 2015-02-25 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Better Understand the Connection between Microbiology and the Inorganic WorldMicrobiology for Minerals, Metals, Materials and the Environment links chemical, metallurgical, and other metal inherent systems with microbes, and analyzes the interdependence between them. Specifically intended to underscore the importance of microbes in environmental re
Download or read book Interactions Between Metals Microbes and Plants written by Riina Turpeinen and published by . This book was released on 2002 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicity of Heavy Metals to Legumes and Bioremediation written by Almas Zaidi and published by Springer Science & Business Media. This book was released on 2012-03-21 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title discusses various effects of heavy metal exposure to legumes as well as the bioremediation potential of rhizosphere microbes. Availability of heavy metals, their uptake and the effects of metals on various signaling pathways within legumes are presented. Furthermore, the effects of heavy metals to nitrogen fixing microorganisms and how microsymbionts can overcome metal stress is presented in detail. The role of nitrogen fixers in decontamination of heavy metal toxicity, mycoremediation of metal contaminated soils, microbially mediated transformation of heavy metals and action of plant growth promoting rhizobacteria and nitrogen fixers together in detoxifying heavy metals are broadly explained. This volume is a useful tool for scientists, policy makers and progressive legume growers intending to develop safe and healthy legumes for future generations.
Download or read book Metal microbe Interactions written by Robert K. Poole and published by . This book was released on 1989 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new title provides information on the relationships of such biological materials as yeasts, fungi, and plasmids with metals they come in contact with. Readers will find in-depth discussions by noted experts in their respective fields on the toxicity of heavy metals, accumulation and precipitation of sulphides, and the reactions of bacterial cell walls to the presence of metal ions. This volume is ideal for undergraduates and graduates, as well as researchers unfamiliar with metal-microbe interactions who are seeking a useful introduction to the field.
