The Role of Colloidal Particles on the Subsurface Transport of Contaminants PDF Download
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Author: John F. McCarthy
Publisher:
ISBN:
Category : Colloids
Languages : en
Pages : 48
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Book Description
Author: John F. McCarthy
Publisher:
ISBN:
Category : Colloids
Languages : en
Pages : 48
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 89
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Book Description
A meeting on ''Transport of Contaminants in the Subsurface: Role of Organic and Colloidal Materials'' was held on October 5-9, 1986, in Manteo, North Carolina. The meeting was part of the series of International Seminars on the Subsurface held by the Subsurface Transport Program o f the Office of Health and Environmental Research of the U.S. Department of Energy. The meeting was organized by Frank Wobber (OHER/DOE) and John McCarthy (Oak Ridge National Laboratory). The purpose of the meeting was to review current knowledge about the role played by colloids on the mobility of contaminants in the subsurface environment, and to identify important long-term research needs in this area. Participants included senior researchers in this field from national laboratories, government agencies, universities, and research institutes in four countries. Recent findings on the occurrence and nature of colloidal material in the subsurface as well as on the association of colloids with organic, metal, and radionuclide contaminants were presented and discussed. Field studies have demonstrated that colloidal particles do move through aquifers and that radionuclides have been transported much further than predicted due to their association with mobile colloids in the groundwater. The consensus of the meeting was that colloids do occur in the subsurface environment, are capable of binding organic and inorganic contaminants, and do alter the mobility of Contaminants. A major difficulty in understanding and predicting the role of colloids is their heterogeneous nature that hampers precise chemical characterization. Clay and metal oxide colloids can be formed or dissolved due to changes in solution chemistry in the aquifer. Organic colloids have variable and diverse functional groups, making it difficult to predict their association with metal and radionuclide contaminants Some important advances were reported toward understanding the assembly of organic colloids and the nature of their interactions with organic contaminants. Major research needs identified by the participants included studies in real systems on the occurrence of colloids in subsurface environments, and more rigorous characterization of the physical and chemical properties of the colloidal material. Methods for sampling colloids need to be improved to avoid production of artifacts during collection. In summary, the meeting concluded that colloidal material is important in contaminant transport and that further research in this area will significantly improve our capacity to predict the movement of energy-related contaminants in subsurface environments.
Author: John F. McCarthy
Publisher:
ISBN:
Category : Colloids
Languages : en
Pages : 70
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Book Description
Author: John F. McCarthy
Publisher:
ISBN:
Category : Colloids
Languages : en
Pages : 120
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Book Description
Author: Daniel Grolimund
Publisher:
ISBN:
Category :
Languages : en
Pages : 292
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Book Description
Author: Pankaj Kumar Gupta
Publisher: Springer Nature
ISBN: 9811565643
Category : Science
Languages : en
Pages : 348
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Book Description
This volume offers detailed information on the behaviour of various water pollutants, and on the principles and concepts of groundwater flow and transport. It will help readers to understand and execute the planning, supervision, and review of solute transport and groundwater modeling projects. The book also discusses the role and fate of elements that have been identified as major contaminants in surface and subsurface waters, and their adverse effects on ecology and human health. The book explores this theme throughout four sections – a. Understanding Soil-Water Systems, b. Fate and Transport of Pollutants, c. Physico-Chemical Treatment of Wastewater and d. Microbial Techniques Used to Decontaminate Soil-Water Systems. Introducing readers to a range of recent advances concerning the fundamentals of subsurface water treatment, it offers a valuable guide for teachers, researchers, policymakers, and undergraduate and graduate students of hydrology, environmental microbiology, biotechnology and the environmental sciences. It also provides field engineers and industrial practitioners with essential support in the effective remediation and management of polluted sites.
Author: Monzer Fanun
Publisher: Elsevier
ISBN: 0444632840
Category : Science
Languages : en
Pages : 715
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Book Description
The Role of Colloidal Systems in Environmental Protection describes the importance of colloids in many applications that contribute to environmental protection, including drinking water and wastewater treatment, heavy metal remediation, treatment of radioactive materials, corrosion, and energy conversion. Knowledge of the physical and chemical composition of colloids is important to understand and accurately model the relevant processes. The book familiarizes the reader with the technological features of the application of colloids in environmental protection, and provides chemical engineers, researchers, and scientists in academic and corporate communities with the latest developments in this field. Each chapter covers the whole spectrum of the relevant science, from the fundamentals to applications. Provides the applied technological features of colloids in environmental protection Gives insight into the use of bio-solid colloids as contaminant carriers Covers the natural occurrence of biosurfactants in the environment and their applications Provides information on the use of nanoparticles for environmental applications Chapters written by recognized and respected experts in the field from all over the world
Author: Warren J. Lyman
Publisher: CRC Press
ISBN: 100015811X
Category : Science
Languages : en
Pages : 426
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Book Description
This book identifies the most important "rules" governing transport, partitioning, retention and transformation of leaked motor fuels in the underground environment. It examines micro-scale fate and transport processes as a means toward promoting a better understanding of larger scale movement of contaminants. Environmental scientists, engineers, consultants, and managers will find Mobility and Degradation of Organic Contaminants in Subsurface Environments to be a useful technical handbook. Less experienced users will appreciate its in-depth explanations of the fate and transport processes vital to effective remedial response. More experienced users will use the book as a source of information, data and equations to support quantitative assessments of pollutant fate and transport.
Author: John McCarthy
Publisher: CRC Press
ISBN: 9780873718288
Category : Technology & Engineering
Languages : en
Pages : 412
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Book Description
This valuable resource discusses several strategies of manipulating colloids for environmental restoration, identifies advantages and disadvantages of each strategy, and considers obstacles limiting the application of each strategy. Approaches evaluated include the following: Chemical modification of subsurface systems to mobilize or deposit colloids in situ Altering the mobility of microorganisms to improve delivery of microbes for bioremediation Manipulating colloids or biocolloids (bacteria) to change aquifer permeability to either enhance bioremediation or create in situ barriers Introducing modified colloids, surfactants, and emulsions to control colloid mobility or to increase recovery of sorbed contaminants by pump and treat methods Manipulation of Groundwater Colloids for Environmental Restoration also contains short, focused research reports on specific studies relevant to the various approaches under consideration. Subjects covered range from mobility of organic macromolecules by controlled field injection experiments to new techniques that investigate surface chemistry and aggregation of inorganic colloids. Other topics discussed include the depositional behavior and transport of biocolloids in porous media, surfactants as modifiers of surface binding sites on colloids, and genetic engineering of microorganisms to serve as contaminant-scavenging biocolloids. Manipulation of Groundwater Colloids for Environmental Restoration is an excellent resource for research scientists in hydrology, chemistry, and microbiology; environmental consultants; regulators; environmental engineers; bioremediation microbiologists; and engineers.
Author: Robert William Puls
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 16
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Book Description
