Plant Enhanced Biodegradation of Petroleum Hydrocarbons in Soil PDF Download
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Author:
Publisher:
ISBN:
Category : Biodegradation
Languages : en
Pages : 342
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Book Description
Hydrocarbons in soil may assert acute or chronic impacts to plants, animals and microbial processes if contacted. These have raised political and scientific concerns. Consequential research efforts corroborated that constitutive microorganisms contact the compounds for their metabolic activities. This may result in mineralisation, transformation and/or detoxification (biodegradation) of the compounds. Hydrocarbon biodegradation is relatively cost-effective and ecological, but often marred with limited availability to plant or animal cells (bioavailability) for metabolism. Several authors reported that growth of some plants or administration of requisite rootexudates into soil with hydrocarbons often increases hydrocarbon bioavailability for enhanced biodegradation. However, development of knowledge about this respite from plants is often founded on impacts of plants on single dose or selected mixture of hydrocarbons in soils or culture solutions. These do not; and cannot represent the heterogeneous complex mixture of numerous organic and inorganic compounds in soils where plants grow naturally. In this study, synthetic root-exudates, seedlings of lupin and ryegrass were applied separately into respective soils that were contaminated with aged and/or fresh petroleum hydrocarbons. Individual impacts of the treatments on bulk hydrocarbon concentrations, rate of microbial respiration and total numbers of culturable bacterial colonies in the soils were investigated. Results suggested that application of lupin, ryegrass or synthetic root-exudates into the soils significantly (p ≤ 0.05) induced reduction or upsurge of hydrocarbon biodegradation end-points relative to the type and concentration of hydrocarbons in soil. Thus, it is inferred that growth of plants or administration of root-exudates into hydrocarbon contaminated soils could result in enhanced biodegradation of hydrocarbons in soil.
Author:
Publisher:
ISBN:
Category : Biodegradation
Languages : en
Pages : 342
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Book Description
Hydrocarbons in soil may assert acute or chronic impacts to plants, animals and microbial processes if contacted. These have raised political and scientific concerns. Consequential research efforts corroborated that constitutive microorganisms contact the compounds for their metabolic activities. This may result in mineralisation, transformation and/or detoxification (biodegradation) of the compounds. Hydrocarbon biodegradation is relatively cost-effective and ecological, but often marred with limited availability to plant or animal cells (bioavailability) for metabolism. Several authors reported that growth of some plants or administration of requisite rootexudates into soil with hydrocarbons often increases hydrocarbon bioavailability for enhanced biodegradation. However, development of knowledge about this respite from plants is often founded on impacts of plants on single dose or selected mixture of hydrocarbons in soils or culture solutions. These do not; and cannot represent the heterogeneous complex mixture of numerous organic and inorganic compounds in soils where plants grow naturally. In this study, synthetic root-exudates, seedlings of lupin and ryegrass were applied separately into respective soils that were contaminated with aged and/or fresh petroleum hydrocarbons. Individual impacts of the treatments on bulk hydrocarbon concentrations, rate of microbial respiration and total numbers of culturable bacterial colonies in the soils were investigated. Results suggested that application of lupin, ryegrass or synthetic root-exudates into the soils significantly (p ≤ 0.05) induced reduction or upsurge of hydrocarbon biodegradation end-points relative to the type and concentration of hydrocarbons in soil. Thus, it is inferred that growth of plants or administration of root-exudates into hydrocarbon contaminated soils could result in enhanced biodegradation of hydrocarbons in soil.
Author: Hemen Sarma
Publisher: John Wiley & Sons
ISBN: 1119671000
Category : Technology & Engineering
Languages : en
Pages : 556
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Book Description
Biosurfactants for a Sustainable Future Explore the state-of-the-art in biosurfactant technology and its applications in environmental remediation, biomedicine, and biotechnology Biosurfactants for a Sustainable Future explores recent developments in biosurfactants and their use in a variety of cutting-edge applications. The book opens a window on the rapid development of microbiology by explaining how microbes and their products are used in advanced medical technology and in the sustainable remediation of emerging environmental contaminants. The book emphasizes the different techniques that are used for the production of biosurfactants from microorganisms and their characterization. Various aspects of biosurfactants, including structural characteristics, developments, production, bio-economics and their sustainable use in the environment and biomedicine, are addressed, and the book also presents metagenomic strategies to facilitate the discovery of novel biosurfactants producing microorganisms. Readers will benefit from the inclusion of: A thorough introduction to the state-of-the-art in biosurfactant technology, techniques, and applications An exploration of biosurfactant enhanced remediation of sediments contaminated with organics and inorganics A discussion of perspectives for biomedical and biotechnological applications of biosurfactants A review of the antiviral, antimicrobial, and antibiofilm potential of biosurfactants against multi-drug-resistant pathogens. An examination of biosurfactant-inspired control of methicillin-resistant Staphylococcus aureus Perfect for academic researchers and scientists working in the petrochemical industry, pharmaceutical industry, and in the agroindustry, Biosurfactants for a Sustainable Future will also earn a place in the libraries of scientists working in environmental biotechnology, environmental science, and biomedical engineering.
Author: Zhongyun Ma
Publisher:
ISBN:
Category : In situ bioremediation
Languages : en
Pages : 194
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Book Description
Author: Harbhajan Singh
Publisher: John Wiley & Sons
ISBN: 0470050586
Category : Science
Languages : en
Pages : 616
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Book Description
The first encyclopedic examination of the application of fungi in bioremediation, this book gives an overview of the science today and covers all aspects of this multidisciplinary field. It provides a solid foundation in the fundamentals and progresses to practical applications. It features step-by-step guidance for a myriad of effective techniques to identify, select, and apply fungi towards the remediation of contaminated sites.
Author: Vimal Chandra Pandey
Publisher: Elsevier
ISBN: 0128230835
Category : Science
Languages : en
Pages : 446
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Book Description
Assisted Phytoremediaion covers a wide range of uses of plants for remediation of environmental pollutants. It includes coverage of such techniques as root engineering, transgenic plants, increasing the biomass, use of genetic engineering and genome editing technology for rapid phytoremediation of pollutants. In order to improve the efficiency of plant remediation, genetic engineering plays a vital role in the overexpression of genes or gene clusters, which are responsible for degradation and uptake of pollutants. The book presents state-of-the-art techniques of assisted phytoremediation to better manage soil and water pollution in large amounts. This book is a valuable resource for researchers, students, and engineers in environmental science and bioengineering, with case studies and state-of-the-art research from eminent global scientists. This book serves as an excellent basis from which scientific knowledge can grow and widen in the field of environmental remediation. Provides a clear picture of how to design, tune, and implement assisted phytoremediation techniques Offers a comprehensive analysis of current perspective and state-of-the-art applications of assisted phytoremediation Introduces the potential of genetic engineering as a rapid, cost-effective technology for environmental remediation using plants
Author: Scott Alan Mills
Publisher:
ISBN:
Category : Hydrocarbons
Languages : en
Pages : 210
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Book Description
Author: Vivek Kumar
Publisher: Springer
ISBN: 9811318409
Category : Medical
Languages : en
Pages : 664
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Book Description
The book discusses ways to overcome the side effects of using hydrocarbon-based products as energy sources. Hydrocarbons produce raw crude oil waste of around 600,000 metric tons per annum, with a range of uncertainty of 200,000 metric tons per year. The various chapters in this book focus on approaches to reduce these wastes through the application of potential microbes, in a process called bioremediation. The book is a one-stop reference resource on the methods, mechanisms and application of the bio-composites, in the laboratory and field. Focusing on resolving a very pressing environmental issue, it not only provides details of existing challenges, but also offers deeper insights into the possibility of solving problems using hydrocarbon bioremediation.
Author: Eve Riser-Roberts
Publisher: CRC Press
ISBN: 9781420050578
Category : Science
Languages : en
Pages : 580
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Book Description
This book combines the results of current research with essential background material to provide complete, in-depth coverage of every aspect of in situ and ex situ bioremediation, as well as an extensive overview of the physical and chemical processes currently available for treating petroleum-contaminated soils. Critical information has been collected and assembled under one cover to provide a convenient reference for anyone who must contend with this worldwide problem. Remediation of Petroleum Contaminated Soils: Biological, Physical, and Chemical Processes describes how to optimize the biodegradation of petroleum hydrocarbons in soil-water systems. It reports on the susceptibility of various petroleum components to biodegradation by microorganisms, and considers all groups of microorganisms for their potential contributions. The book also deals with problem areas such as the transport of organisms, oxygen, or nutrients throughout the subsurface, as well as biodegradation of polynuclear aromatic hydrocarbons (PAHs) and nonaqueous phase liquids (NAPLs). In addition, the book presents a variety of methods for monitoring bioremediation. This reference discusses current soil remediation processes and includes many innovative approaches. It also investigates means of controlling volatile organic compounds (VOCs) and leachate, and addresses methods for collecting and treating these secondary waste streams. The expansive coverage of this book will furnish readers with a wide range of options for developing treatment strategies and for customizing procedures for specific requirements.
Author: Ajay Singh
Publisher: Springer Science & Business Media
ISBN: 3662057948
Category : Nature
Languages : en
Pages : 312
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Book Description
The huge expansion of the chemical and petroleum industries in the twentieth century has resulted in the production of a vast array of chem ical compounds and materials that have transformed our lives. The associated large-scale manufacturing, processing and handling activi ties have caused a serious deterioration in environmental quality and created threats to human health. These negative impacts have led to responses and regulations requiring remedial action in support of envi ronmental sustainability. of biotechnological methods through bioremediation, Application has gained prominence as an option for soil remediation methods. Bioremediation is a multidisciplinary approach where biologists, chem ists, soil scientists and engineers work as team to develop and imple ment remediation processes. Bioremediation has now been used successfully to remediate many petroleum-contaminated sites. However, there are as yet no commercial technologies commonly used to reme diate the most recalcitrant contaminants. Nevertheless, bioremediation is a rapidly advancing field and new bio-based remedial technologies are continuing to emerge.
Author: Ramkrishna Sen
Publisher: Springer Science & Business Media
ISBN: 1441959793
Category : Medical
Languages : en
Pages : 356
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Book Description
The microbial world has given us many surprises including microbes that grow under extremely harsh conditions (122C at 40 MPa), novel metabolisms such as the uranium and perchlorate reduction, and novel chemicals that can be used to control diseases. We continually face new and difficult problems such as the need to transition to more carbon-neutral energy sources and to find eco-friendly chemicals and to find new drugs to treat disease. Will it be possible to tap into the seemingly limitless potential of microbial activity to solve our current and future problems?The answer to this question is probably yes. We are already looking to the microbial world to provide new energy sources, green chemicals to replace those made from petroleum, and new drugs to fight disease. To help us along these paths, we are deciphering how microorganisms interact with each other. We know that microbial populations interact and communicate with each other. The language that microbes use is chemical where small molecules are exchanged among different microbial cells. Sometimes, these chemicals suppress activities of competitors and could be used as antibiotics or may have other therapeutic uses. Other times, the chemicals stimulate complex responses in microbial populations such as fruiting body or biofilm formation. By understanding the conversation that microbes are having among themselves, e. g.
