In Situ Bioremediation

In Situ Bioremediation PDF
Author: Bruce E. Rittmann
Publisher: Taylor & Francis
ISBN: 9780815513483
Size: 74.18 MB
Format: PDF, Kindle
Category : Science
Languages : en
Pages : 260
View: 3644

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This critical review of the status of in situ bioremediation, which is used to clean up contaminated groundwater aquifers and surface soils, has been organized according to possibilities and restrictions. Possibilities are based on present knowledge and indicate that in situ bioremediation can achieve decontamination of aquifers and soils. Restrictions encompass the scientific, engineering, legal, and other questions that stand in the way of successful development and application of in situ bioremediation. Although much has been written about bioremediation, this critical review is unique because it is comprehensive, critical, and integrated. This situation was no accident; the organization of the authorship team and the report's contents were designed to achieve each of the three attributes. Combining a good plan, outstanding individuals contributing, and an incredible amount of work, they created a critical review that defines the technical and non-technical issues that will determine how much of an impact in situ bioremediation makes on solving the world's challenges for cleanup of our legacy of improperly disposed of materials. Readers of this review will find the issues identified and connected. They will have a solid foundation for research, application, or evaluation of in situ bioremediation in the future.

In Situ Bioremediation Of Perchlorate In Groundwater

In Situ Bioremediation of Perchlorate in Groundwater PDF
Author: Hans F. Stroo
Publisher: Springer Science & Business Media
ISBN: 9780387849218
Size: 60.23 MB
Format: PDF, Mobi
Category : Technology & Engineering
Languages : en
Pages : 248
View: 1617

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In the late 1970s and early 1980s, our nation began to grapple with the legacy of past disposal practices for toxic chemicals. With the passage in 1980 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), commonly known as Superfund, it became the law of the land to remediate these sites. The U. S. Department of Defense (DoD), the nation’s largest industrial organization, also recognized that it too had a legacy of contaminated sites. Historic operations at Army, Navy, Air Force, and Marine Corps facilities, ranges, manufacturing sites, shipyards, and depots had resulted in widespread contamination of soil, groundwater, and sediment. While Superfund began in 1980 to focus on remediation of heavily contaminated sites largely abandoned or neglected by the private sector, the DoD had already initiated its Installation Restoration Program in the mid 1970s. In 1984, the DoD began the Defense Environmental Restoration Program (DERP) for contaminated site assessment and remediation. Two years later, the U. S. Congress codified the DERP and directed the Secretary of Defense to carry out a concurrent program of research, development, and demonstration of innovative remediation technologies. As chronicled in the 1994 National Research Council report, “Ranking Hazardous-Waste Sites for Remedial Action”, our early estimates on the cost and suitability of existing technologies for cleaning up contaminated sites were wildly optimistic. Original estimates, in 1980, projected an average Superfund cleanup cost of a mere $3.

In Situ Bioremediation Of Ground Water And Geological Material

In Situ Bioremediation of Ground Water and Geological Material PDF
Author: Robert D. Norris
Publisher: DIANE Publishing
ISBN: 9780788122507
Size: 80.43 MB
Format: PDF, ePub, Docs
Category :
Languages : en
Pages : 200
View: 529

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Provides a detailed background of the technologies available for the bioremediation of contaminated soil & ground water. Prepared for scientists, consultants, regulatory personnel, & others who are associated in some way with the restoration of soil & ground water at hazardous waste sites. Also provides insights to emerging technologies which are at the research level of formation, ranging from theoretical concepts, through bench scale inquiries, to limited field-scale investigations. 95 tables & figures.

In Situ Bioremediation

In Situ Bioremediation PDF
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309048966
Size: 49.40 MB
Format: PDF, ePub
Category : Science
Languages : en
Pages : 224
View: 6931

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In situ bioremediation--the use of microorganisms for on-site removal of contaminants--is potentially cheaper, faster, and safer than conventional cleanup methods. But in situ bioremediation is also clouded in uncertainty, controversy, and mistrust. This volume from the National Research Council provides direction for decisionmakers and offers detailed and readable explanations of the processes involved in in situ bioremediation, circumstances in which it is best used, and methods of measurement, field testing, and modeling to evaluate the results of bioremediation projects. Bioremediation experts representing academic research, field practice, regulation, and industry provide accessible information and case examples; they explore how in situ bioremediation works, how it has developed since its first commercial use in 1972, and what research and education efforts are recommended for the future. The volume includes a series of perspective papers. The book will be immediately useful to policymakers, regulators, bioremediation practitioners and purchasers, environmental groups, concerned citizens, faculty, and students.

In Situ Bioremediation

In Situ Bioremediation PDF
Author: Committee on In Situ Bioremediation
Publisher: National Academies Press
ISBN: 0309585503
Size: 48.24 MB
Format: PDF, Docs
Category : Science
Languages : en
Pages : 198
View: 156

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In situ bioremediation--the use of microorganisms for on-site removal of contaminants--is potentially cheaper, faster, and safer than conventional cleanup methods. But in situ bioremediation is also clouded in uncertainty, controversy, and mistrust. This volume from the National Research Council provides direction for decisionmakers and offers detailed and readable explanations of the processes involved in in situ bioremediation, circumstances in which it is best used, and methods of measurement, field testing, and modeling to evaluate the results of bioremediation projects. Bioremediation experts representing academic research, field practice, regulation, and industry provide accessible information and case examples; they explore how in situ bioremediation works, how it has developed since its first commercial use in 1972, and what research and education efforts are recommended for the future. The volume includes a series of perspective papers. The book will be immediately useful to policymakers, regulators, bioremediation practitioners and purchasers, environmental groups, concerned citizens, faculty, and students.

Impacts Of Sorption On In Situ Bioremediation Of Explosives Contaminated Soils

Impacts of Sorption on in Situ Bioremediation of Explosives contaminated Soils PDF
Author: Judith C. Pennington
Publisher:
ISBN:
Size: 56.61 MB
Format: PDF, ePub, Mobi
Category : Explosives, Military
Languages : en
Pages : 44
View: 5600

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Bioavailability of contaminants in soils may depend upon the concentration of the contaminant in the solution phase, which is dependent upon the ease with which the contaminant moves from fixed states into the solution phase. When bioremediation is the goal, enhancement of bioavailability by increasing solution phase concentrations of the contaminant may be necessary. Objectives of this study were to characterize desorption of ThT, RDX, and HMX in soils and to enhance solution phase concentrations by using surfactant and hot water. Desorption kinetics and isotherms were determined on four explosives contaminated soils using shake tests. Isotherms were determined for aqueous, surfactant, and hot water challenges. Column leaching experiments were performed using one of these soil and aqueous challenge over a period of 35 days. Results indicated that soil concentration of explosives exerts an important impact upon solution phase availability. When explosive concentrations in soils were sufficiently high to produce free product in the soil, solubilization was the dominant mass transfer process. When concentrations were low, desorption, convection, and dispersion controlled solution phase concentrations. Surfactants generally increased solution phase concentrations of explosives; however, effectiveness was less dramatic in soils having limited explosives concentration. Hot water also increased solution phase concentrations, but was not as effective as surfactants.

Hydrocarbon Bioremediation

Hydrocarbon Bioremediation PDF
Author: Battelle Memorial In
Publisher: CRC Press
ISBN: 9780873719841
Size: 10.44 MB
Format: PDF, Docs
Category : Science
Languages : en
Pages : 496
View: 6735

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With oil spills occurring worldwide, much media and practical attention has been given in recent years to the rapidly maturing field of hydrocarbon bioremediation, particularly with application to marine spills. Hydrocarbon contamination of soil and groundwater, although less visible, is even more widespread and has provided the background for the numerous studies presented in this book, in addition to those devoted to shoreline spills. Chapters address a wide variety of theory and practice and cover important subjects such as biofiltration, natural attenuation, surfactants, and the use of in situ bioventing compared to soil venting. This unique book represents the collective global experience of practitioners and researchers in North America, Europe, Africa, and Asia. It describes experiences in tying laboratory studies to field applications. Nowhere else can anyone involved in hydrocarbon bioremediation find more up-to-date, relevant information on field experience using the various techniques and combinations of techniques in remediating hydrocarbons by biological means.