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Bacteria-Metal Interactions
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.
Biogas from Waste and Renewable Resources
The leading book on the market just got better: With its unique approach covering all aspects of setting up and running a biogas plant, this new edition has been expanded to include recent advances in biomass processing. The author is a key player in the field, who has designed numerous small- and industrial-scale biogas plants, and who is also a long-time lecturer on biogas production, thus combining didactical skill with real-life expertise. As such, he covers both the biological and technical aspects of biogas generation. The full range of biogas substrates and processing modes is explained, from agricultural and industrial waste to marine algae and sediment. On-site use of biogas for conversion into electricity, fuel and heat is also discussed, as are safety and regulatory issues. Many real-life examples of European biogas plants already in operation illustrate the contents, as do numerous schemes, diagrams and summary tables. For this new edition, biogas analytics and quality control required for feeding biogas into natural gas networks are included, as is a completely new chapter on the microbiology of biogas-producing bacterial communities.
Materials Challenges in Alternative and Renewable Energy II
The overall efficiency, effectiveness, and practicality of potential future energy sources and systems are directly related to many materials-related factors. This volume features 30 papers presented during the 2012 Materials Challenges in Alternative and Renewable Energy Conference. They cover the latest developments involving materials for alternative and renewable energy sources and systems, including batteries and energy storage, hydrogen, solar, wind, geothermal, biomass, and nuclear, as well as materials availability, the energy grid, and nanocomposites.
Phyto and Microbial Remediation of Heavy Metals and Radionuclides in the Environment
This book examines the role that bioremediation can play in the detoxification of soil, water, and air to improve environmental and human health, with a specific focus on heavy metals and radionuclides. Environmental pollution, whether by natural or human causes, with industrial activities being a key player, is a challenge facing all nations across the world. While treatment has typically required the use of expensive technology, one promising solution is the use of phytoremediation, in which plants act by metabolizing or sequestering pollutants. This eco-friendly solution is a good alternative to the standard methods of soil and water treatments. This book provides not only the basic defin...
Annual Review of Microbiology
Publishes original critical reviews of the significant literature and current development in microbiology.
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Bioremediation of Chlorinated Solvents
Soil and groundwater contamination stemming from the release of various chlorinated compounds into the environment is a significant and difficult site remediation challenge. The articles in this collection discuss the use of aerobic and anaerobic biological degradation to dehalogenate sites contaminated with pesticides and chlorinated solvents such as trichloroethylene, tetrachloroethene, tetrachloromethene, perchloroethylene, carbon tetrachloride, pentachlorophenol, and chlorinated benzene. Bench- and field-scale studies of the biological processes associated with in situ dechlorination of soil and aquifers are described. Discussed are the uses of microcosm studies and numerical simulation of dechlorination to manage system operation. Site characteristics (e.g., hydraulic properties, temperature, nitrogen availability) and their effect on the stability of the methanotrophic community are examined. Methods discussed include the use of air venting, alternative electron donors, biofilm reactors, surfactants, municipal digester sludge, iron enhancement, and sulfate reduction to improve conditions for the microbial consortia that effect dechlorination.
Regulation of Biofilm Formation in Two Gamma-proteobacteria
S. oneidensis MR-1 is a dissimilatory metal-reducing bacterium. Under anaerobic conditions S. oneidensis MR-1 attaches to insoluble minerals such as Fe(III) and Mn(IV) oxides and can use these as alternative electron acceptors. Biofilms of S. oneidensis MR- 1 were previously found to be dependent on the mxd gene cluster (mxdABCD). This study identified environmental and genetic factors regulating mxd -dependent and -independent biofilm formation in S. oneidensis MR-1 and a putative function for mxdB in LPS biosynthesis. Physiological experiments determined electron donor starvation as a factor responsible for mxd induction. Tn5 mutagenesis identified the two-component signaling system (TC...
