Innovative Technologies For In Situ Remediation
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Innovative Technologies For In Situ Remediation
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Author :
language : en
Publisher:
Release Date : 1994
Innovative Technologies For In Situ Remediation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
LLNL is developing several innovative remediation technologies as long-term improvements to the current pump and treat approaches to cleaning up contaminated soils and groundwater. These technologies include dynamic underground stripping, in-situ microbial filters, and remediation using bremsstrahlung radiation. Concentrated underground organic contaminant plumes are one of the most prevalent groundwater contamination sources. The solvent or fuel can percolate deep into the earth, often into water-bearing regions. Collecting as a separate, liquid organic phase called dense non-aqueous-phase liquids (DNAPLs), or light NAPLs (LNAPLs), these contaminants provide a source term that continuously compromises surrounding groundwater. This type of spill is one of the most difficult environmental problems to remediate. Attempts to remove such material requires a huge amount of water which must be washed through the system to clean it, requiring decades. Traditional pump and treat approaches have not been successful. LLNL has developed several innovative technologies to clean up NAPL contamination. Detailed descriptions of these technologies are given.
Herinrichting Van De Algemene Bijstandswet Algemene Bijstandswet
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Author :
language : en
Publisher:
Release Date : 1990
Herinrichting Van De Algemene Bijstandswet Algemene Bijstandswet written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
J R Simplot Ex Situ Bioremediation Technology For Treatment Of Tnt Contaminated Soils
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Author :
language : en
Publisher:
Release Date : 1995
J R Simplot Ex Situ Bioremediation Technology For Treatment Of Tnt Contaminated Soils written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Explosives categories.
Innovative Technologies For Remediation Of Arsenic In Soil And Groundwater
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Author : James Curtis Redwine
language : en
Publisher:
Release Date : 1997
Innovative Technologies For Remediation Of Arsenic In Soil And Groundwater written by James Curtis Redwine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Arsenic categories.
In Situ Remediation Of Chlorinated Solvent Plumes
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Author : Hans F. Stroo
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-09-10
In Situ Remediation Of Chlorinated Solvent Plumes written by Hans F. Stroo and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-10 with Technology & Engineering categories.
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 Envir- mental Response, Compensation, and Liability Act (CERCLA), commonly known as Sup- fund, 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 techn- ogies for cleaning up contaminated sites were wildly optimistic. Original estimates, in 1980, projected an average Superfund cleanup cost of a mere $3.
Field Applications Of In Situ Remediation Technologies
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Author :
language : en
Publisher:
Release Date : 1998
Field Applications Of In Situ Remediation Technologies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Factory and trade waste categories.
Approximately 85% of the hazardous waste sites in the United States have contaminated ground water. The conventional approach for remediating contaminated ground water has been to extract the contaminated water, treat it above ground, and reinject or discharge the clean water ("pump- and-treat"). The recovered contaminants must be disposed of separately. It is becoming increasingly apparent that pump-and-treat technologies require considerable investment over extended period of time, and often times do not actually clean up the source of the contamination. Current policies and law stress "permanent" remedies over containment. Consequently, there is considerable interest and effort being expended on alternative, innovative treatment technologies for contaminated ground water. This report is one in a series that document recent pilot demonstrations and full-scale applications that either treat soil and ground water in place or increase the solubility and mobility of contaminants to improve their removal by other remediation technologies. It is hoped that this information will allow more regular consideration of new, less costly, and more effective technologies to address the problems associated with hazardous waste sites and petroleum.
Recent Developments For In Situ Treatment Of Metal Contaminated Soils
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Author :
language : en
Publisher: DIANE Publishing
Release Date : 1997
Recent Developments For In Situ Treatment Of Metal Contaminated Soils written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with In situ remediation categories.
Summary Performance Assessment Of In Situ Remediation Technologies Demonstrated At Savannah River
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Author :
language : en
Publisher:
Release Date : 1994
Summary Performance Assessment Of In Situ Remediation Technologies Demonstrated At Savannah River written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
The Office of Technology Development (OTD) in the Department of Energy's (DOE) Office of Environmental Restoration and Waste Management is investigating new technologies for ''better, faster, cheaper, safer'' environmental remediation. A program at DOE's Savannah River site was designed to demonstrate innovative technologies for the remediation of volatile organic compounds (VOCs) at nonarid sites. Two remediation technologies, in situ air stripping and in situ bioremediation--both using horizontal wells, were demonstrated at the site between 1990--1993. This brief report summarizes the conclusions from three separate modeling studies on the performance of these technologies.
In Situ Remediation Integrated Program
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Author :
language : en
Publisher:
Release Date : 1994
In Situ Remediation Integrated Program written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
The In Situ Remediation Integrated Program (ISR IP), managed under the US Department of Energy's (DOE) Office of Technology Development, focuses research and development efforts on the in-place treatment of contaminated environmental media, such as soil and groundwater, and the containment of contaminants to prevent the contaminants from spreading through the environment. As described here, specific ISR IP projects are advancing the application of in situ technologies to the demonstration point, providing developed technologies to customers within DOE. The ISR IP has also taken a lead role in assessing and supporting innovative technologies that may have application to DOE.
Innovative Technology Summary Report
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Author :
language : en
Publisher:
Release Date : 1995
Innovative Technology Summary Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
In situ air stripping (ISAS) technology was developed to remediate soils and ground water contaminated with volatile organic compounds (VOCs) both above and below the water table. ISAS employs horizontal wells to inject (sparge) air into the ground water and vacuum extract VOCs from vadose zone soils. The innovation is creation of a system that combines two somewhat innovative technologies, air sparging and horizontal wells, with a baseline technology, soil vapor extraction, to produce a more efficient in situ remediation system.