Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Carbon Dioxide Production At Different Matric Potentials In Biofiltration
Download Carbon Dioxide Production At Different Matric Potentials In Biofiltration full books in PDF, epub, and Kindle. Read online Carbon Dioxide Production At Different Matric Potentials In Biofiltration ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Carbon Dioxide Production at Different Matric Potentials in Biofiltration by : Daisy Badilla
Download or read book Carbon Dioxide Production at Different Matric Potentials in Biofiltration written by Daisy Badilla and published by GRIN Verlag. This book was released on 2024-02-07 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Academic Paper from the year 2010 in the subject Environmental Sciences, , language: English, abstract: The objective of this study is to investigate PCO2 at different matric potentials/water contents as a way of verifying biofiltration performance. Production of carbon dioxide (PCO2) is often used to measure the extent of biodegradation in biofiltration. PCO2 is a useful measure of performance where a high value of carbon recovery confirms effective biodegradation. A biofilter reactor with water content control through changes in matric potential was used in this study using soil as the filter bed medium. The value of this work is in the study of the biofiltration performance in high matric potential/water content which might not have been possible in previous studies due to the difficulty or even unavailability of rigorous control of matric potential/water content in the experimental set-up. Results of this study imply CO2 production is not a good measure of the extent of biodegradation during wetting (an increase of matric potential) of the filter bed medium and thus, caution in its use as an indicator of the degree of mineralization or biodegradation is to be observed.
Book Synopsis Influence of Water Content, Concentration, and Nutrient Addition on the Biofiltration of Toluene for Air Pollution Mitigation Using Soil Biofilters with Water Content Control by : Daisy B. Badilla
Download or read book Influence of Water Content, Concentration, and Nutrient Addition on the Biofiltration of Toluene for Air Pollution Mitigation Using Soil Biofilters with Water Content Control written by Daisy B. Badilla and published by GRIN Verlag. This book was released on 2024-02-20 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2011 in the subject Environmental Sciences, grade: Passed, University of the Philippines, course: Doctor of Philosophy in Environmental Engineering, language: English, abstract: In this study, the influence of water content on biofiltration performance was investigated. A biofilter reactor with water content control through changes in matric potential in a suction cell was used to treat toluene-contaminated air with soil as the filter bed medium. Results suggest the soil water content should be controlled at about 96% (dry weight) or a matric potential of -10 cm H2O. The maximum elimination capacity in this study appears to be a restricted to a narrow water content and this narrow range impacts on the operation of full-scale biofilters as traditional techniques for water content control would make maintaining this range difficult. Biofiltration, which is also sometimes referred to as bio-oxidation, is a method of air pollution control where contaminants in a gas stream are metabolized by microorganisms and converted to water, carbon dioxide and biomass. Biofiltration involves biological, chemical, and physical processes. It is often preferred over other air pollution control technologies since it does not produce secondary pollutants and does not involve expensive maintenance and operating costs. However, one of its disadvantages is the difficulty in controlling water content. A water retention curve of the soil was generated by plotting water content versus matric potential with data obtained using the suction cell. Two additional factors, concentration and nutrient addition, were investigated using two other soil biofilters. Improved biofiltration performance was observed at higher toluene concentrations. High toluene concentrations may be advisable during start-up as it converts microorganisms that do not thrive on toluene into nutrients for desired degraders inducing growth and improved performance but would have to be controlled to avoid excessive growth. In the membrane biofilter, the large pores in the biofilm contributed to a possible enhancement of pollutant and oxygen mass transfer. Nutrient addition improved the volumetric removal rate of toluene which implies that available nutrient has been limited. Nitrogen was identified as limiting the biomass growth. The production of carbon dioxide confirmed effective biodegradation of toluene in the soil biofilter. This study contributes to existing knowledge relevant conclusions and recommendations that may guide biofiltration operation, broaden concepts, or direct future studies and it considers treatment of indoor air pollution as a particular area of application.
Book Synopsis Indoor Air Pollution Control Using a Soil Biofilter by : Daisy Badilla
Download or read book Indoor Air Pollution Control Using a Soil Biofilter written by Daisy Badilla and published by GRIN Verlag. This book was released on 2024-04-15 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Academic Paper from the year 2008 in the subject Physics - Biophysics, , language: English, abstract: Biofiltration may be used to control indoor air pollution. In biofiltration, contaminants in a gas stream are degraded by microorganisms and converted to carbon dioxide, water, and biomass. In this study, the CO2 production and the elimination capacity (EC) of toluene at inlet concentrations between 20 and 80 ppm were investigated using three biofilters operated separately with soil as bed material. Results showed soil, with its rich microflora taken to full advantage without inoculants and additional nutrients, biodegraded toluene at removal rates comparable to those in other studies at higher concentrations. The quantity of CO2 produced correlates with the quantity of toluene removed which implies effective biodegradation and suggests stable long-term operation at these low concentrations. Though the concentrations used in this study are not typical toluene indoor concentrations (ppb), results show biofiltration may be effective for indoor air pollution control with proper design considering biomass growth or biofilm structure, concentration, and gas flow rate.
Book Synopsis Biofiltration for Air Pollution Control by : Joseph S. Devinny
Download or read book Biofiltration for Air Pollution Control written by Joseph S. Devinny and published by CRC Press. This book was released on 2017-11-22 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number-one environmental threat to public health, air pollution remains a pressing problem-made even more complicated by the massive quantity and diversity of air pollution sources. Biofiltration technology (using micro-organisms growing on porous media) is being recognized as one of the most advantageous means to convert pollutants to harmless products. Done properly, biofiltration works at a reasonable cost-utilizing inexpensive components, without requiring fuel or generating hazardous by-products. Firmly established in Europe, biofiltration techniques are being increasingly applied in North America: Biofiltration for Air Pollution Control offers the necessary knowledge to "do it right."
Book Synopsis The Use of Saline Waters for Crop Production by : J. D. Rhoades
Download or read book The Use of Saline Waters for Crop Production written by J. D. Rhoades and published by Artabras. This book was released on 1992 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biotechnology for Odor and Air Pollution Control by : Zarook Shareefdeen
Download or read book Biotechnology for Odor and Air Pollution Control written by Zarook Shareefdeen and published by Springer Science & Business Media. This book was released on 2005-12-12 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is the first book on biotechnological processes for controlling odor and air pollution emanating from industrial and municipal airstreams. Authors from academia and industry describe biotechnological methods ranging from those in laboratory stages to pilot evaluation to full-scale process implementation. In addition to the basic microbiology and engineering, the design, modeling, and control of bioreactors are discussed in detail.
Book Synopsis Engineering and Design by : Us Army Corps Of Engineers
Download or read book Engineering and Design written by Us Army Corps Of Engineers and published by Military Bookshop. This book was released on 2002-06-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual provides practical guidance for the design and operation of soil vapor extraction (SVE) and bioventing (BV) systems. It is intended for use by engineers, geologists, hydrogeologists, and soil scientists, chemists, project managers, and others who possess a technical education and some design experience but only the broadest familiarity with SVE or BV systems.
Book Synopsis Bioremediation of Salt Affected Soils: An Indian Perspective by : Sanjay Arora
Download or read book Bioremediation of Salt Affected Soils: An Indian Perspective written by Sanjay Arora and published by Springer. This book was released on 2017-03-31 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume focuses on the characterization, reclamation, bioremediation, and phytoremediation of salt affected soils and waterlogged sodic soils. Innovative technologies in managing marginal salt affected lands merit immediate attention in the light of climate change and its impact on crop productivity and environment. The decision-making process related to reclamation and management of vast areas of salt affected soils encompasses consideration of economic viability, environmental sustainability, and social acceptability of different approaches. The chapters in this book highlight the significant environmental and social impacts of different ameliorative techniques used to manage salt affected soils. Readers will discover new knowledge on the distribution, reactions, changes in bio-chemical properties and microbial ecology of salt affected soils through case studies exploring Indian soils. The contributions presented by experts shed new light on techniques such as the restoration of degraded lands by growing halophyte plant species, diversification of crops and introduction of microbes for remediation of salt infested soils, and the use of fluorescent pseudomonads for enhancing crop yields.
Book Synopsis Bioreactors for Waste Gas Treatment by : C. Kennes
Download or read book Bioreactors for Waste Gas Treatment written by C. Kennes and published by Springer. This book was released on 2001-10-31 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air pollution, a major concern at the end of the 20th century, still remains a significant problem to be solved today. Traditionally, industrial waste gases have primarily been treated through physical or chemical methods. The search for new, efficient, and cost-effective alternative technologies has led to the development and, more recently, the improvement of gas phase bioreactors. This book is the first single text to provide a complete, comprehensive picture of all major biological reactors suitable for solving air pollution problems. The text describes the main features and covers the major aspects, from microbiological to engineering, as well as economic aspects, of the different types of bioreactors. The book also presents an in-depth review of the subject, from fundamental bench-scale research to industrial field applications related to the operation of full-scale systems successfully treating polluted air in Europe and the United States. Material dedicated to more conventional non-biological technologies has also been included, to provide a complete overview of the different alternative treatment processes. Audience: The different chapters have been written by international experts, as a result of a fruitful collaboration between European and American scientists and engineers. The resulting text is a high quality, valuable reference tool for a variety of readers, including graduate and postgraduate students, researchers, professors, engineers, and those professionals who are interested in environmental engineering and, more specifically, in innovative air pollution control technologies.
Book Synopsis Water in Road Structures by : Andrew Dawson
Download or read book Water in Road Structures written by Andrew Dawson and published by Springer Science & Business Media. This book was released on 2008-10-21 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Only book world-wide addressing this topic. The principal output of the European co-operative Action on "Water Movements in Road Pavements & Embankments". Provides unique guidance on assessing water condition and its affects on road performance. Provides unique guidance on assessing and ameliorating contaminant movement in pavement groundwater. Written by leading experts in Europe.
Book Synopsis Geoenvironmental Engineering by : Raymond N. Yong
Download or read book Geoenvironmental Engineering written by Raymond N. Yong and published by CRC Press. This book was released on 2000-09-25 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why do some contaminants remain in soils indefinitely? How much of a threat do they pose to human health or the environment? The need for effective and economic site decontamination arises daily. Geoenvironmental Engineering: Contaminated Soils, Pollutant Fate, and Mitigation discusses why soils remain contaminated, focusing on the development of the factors, properties, characteristics, and parameters of soils and individual contaminants. Subjects covered include the basic properties of soils affecting accumulation of contaminants, long-term retention of contaminants and their fate, including the development of intermediate products. The author emphasizes the factors, interactions, and mechanisms important in the bonding and partitioning process. He provides the groundwork for determining the fate of pollutants in soils and sediments and their mitigation. Geoenvironmental Engineering: Contaminated Soils, Pollutant Fate, and Mitigation focuses on why soils and sediments remain contaminated, not how they became contaminated in the first place. You will understand why specific contaminants remain in soils and sediments, how much of a threat they pose to human health and the environment, and what steps to take for mitigation. With this information you can determine the extent of the contamination of soils and sediments, how long they will remain a threat, and what methods to use for their remediation.
Book Synopsis Soil-based Wastewater Treatment by : Jose A. Amador
Download or read book Soil-based Wastewater Treatment written by Jose A. Amador and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our book addresses the needs of practitioners, engineers, scientists, regulators, resource managers, planners, and others with a need to know about septic systems. It arose after discussions about the need for a text that integrated current understanding of the hydrologic, physical, chemical, and biological processes involved in the treatment of wastewater using soil. In our experience, people working with septic systems – ourselves included – have a fragmented understanding of what these systems are, how they function, how wastewater moves through soil, how and which pollutants are removed, and how these systems impact the environment and public health. The relevant information is scattered across disciplines, information sources and audiences. This book is an attempt to collect and integrate this information in one place, and provide a scientific framework for understanding soil-based wastewater treatment.
Book Synopsis Environmental Sustainability by : P. Thangavel
Download or read book Environmental Sustainability written by P. Thangavel and published by Springer. This book was released on 2014-11-06 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers different categories of green technologies (e.g. biofuels, renewable energy sources, phytoremediation etc.,) in a nutshell -Focuses on next generation technologies which will help to attain the sustainable development -The chapters widely cover for students, faculties and researchers in the scientific arena of Environmentalists, Agriculturalists, Engineers and Policy Makers The World Environment Day 2012 is prepared to embrace green economy. The theme for 2012 encompasses various aspects of human living, ranging from transport to energy to food to sustainable livelihood. Green technology, an eco-friendly clean technology contributes to sustainable development to conserve the natural resources and environment which will meet the demands of the present and future generations. The proposed book mainly focuses on renewable energy sources, organic farming practices, phyto/bioremediation of contaminants, biofuels, green buildings and green chemistry. All of these eco-friendly technologies will help to reduce the amount of waste and pollution and enhance the nation’s economic growth in a sustainable manner. This book is aimed to provide an integrated approach to sustainable environment and it will be of interest not only to environmentalists but also to agriculturists, soil scientists and bridge the gap between the scientists and policy-makers.
Book Synopsis Waste Sites as Biological Reactors by : Percival A. Miller
Download or read book Waste Sites as Biological Reactors written by Percival A. Miller and published by CRC Press. This book was released on 2002-12-26 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Where and how wastes disappear, and how the environment is affected by the process, are issues that affect cities and towns around the world. Recent investigations have convincingly shown that waste poses water, air, and public health dangers that necessitate highly efficient engineered controls. An inexpensive, effective, method for assessing impa
Book Synopsis Mycorrhizal Symbiosis by : Sally E. Smith
Download or read book Mycorrhizal Symbiosis written by Sally E. Smith and published by Academic Press. This book was released on 2010-07-26 with total page 815 pages. Available in PDF, EPUB and Kindle. Book excerpt: The roots of most plants are colonized by symbiotic fungi to form mycorrhiza, which play a critical role in the capture of nutrients from the soil and therefore in plant nutrition. Mycorrhizal Symbiosis is recognized as the definitive work in this area. Since the last edition was published there have been major advances in the field, particularly in the area of molecular biology, and the new edition has been fully revised and updated to incorporate these exciting new developments. Over 50% new material Includes expanded color plate section Covers all aspects of mycorrhiza Presents new taxonomy Discusses the impact of proteomics and genomics on research in this area
Book Synopsis Plants and Microclimate by : Hamlyn G. Jones
Download or read book Plants and Microclimate written by Hamlyn G. Jones and published by Cambridge University Press. This book was released on 1992-06-04 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: A STUDY OF PLANTS-CLIMATE AND THE IMPACTS OF CHANGE UPON VEGETATION.
Book Synopsis The Utilization of Bioremediation to Reduce Soil Contamination: Problems and Solutions by : Václav Sasek
Download or read book The Utilization of Bioremediation to Reduce Soil Contamination: Problems and Solutions written by Václav Sasek and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditional reliance on chemical analysis to understand the direction and extent of treatment in a bioremediation process has been found to be inadequate. Whereas the goal of bioremediation is toxicity reduction, few direct, reliable measures of this process are as yet available. Another area of intense discussion is the assessment of market forces contributing to the acceptability of bioremediation. Finally, another important component is a series of lectures and lively exchanges devoted to practical applications of different bioremediation technologies. The range of subjects covers a wide spectrum, encompassing emerging technologies as well as actual, full-scale operations. Examples discussed include landfarming, biopiling, composting, phytoremediation and mycoremediation. Each technology is explored for its utility and capability to provide desired treatment goals. Advantages and limitations of each technology are discussed. The concept of natural attenuation is also critically evaluated since in some cases where time to remediation is not a significant factor, it may be an alternative to active bioremediation operations.
