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July 25, 2006
July 17, 2006
Optimizing of In Situ Bioremediation Technology to Manage Perchlorate- Contaminated Groundwater
This is a AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A023514. The abstract provided by the Pentagon follows: Combining horizontal flow treatment wells (HFTWs) with in situ biodegradation is an innovative approach with the potential to remediate perchlorate-contaminated groundwater. A technology model was recently developed that combines the groundwater flow induced by HFTWs with in situ biodegradation processes that result from using the HFTWs to mix electron donor into perchlorate-contaminated groundwater. A field demonstration of this approach is planned to begin this year. In order to apply the technology in the field, project managers need to understand how contaminated site conditions and technology design parameters impact technology performance. One way to gain this understanding is to use the technology model to select engineering design parameters that optimize performance under given site conditions. In particular, a project manager desires to design a system that: 1) maximizes perchlorate destruction; 2) minimizes treatment expense; and 3) attains regulatory limits on down gradient contaminant concentrations. Unfortunately, for a relatively complex technology with a number of engineering design parameters to determine, as well as multiple objectives, system optimization is not straightforward. In this study, a multi-objective genetic algorithm (MOGA) is used to determine design parameter values (flow rate, well spacing, concentration of injected electron donor, and injection schedule) that optimize the first two objectives noted; to maximize perchlorate destruction while minimizing cost. Buy at Amazon or Comparison Shop at Best Buys Zone
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This volume focuses on innovative bioremediation techniques and applications for the cleanup of contaminated media and sites. It includes quantitative and design methods that elucidate the relationships among various operational parameters, and waste chemistry that defines the cost effectiveness of bioremediation projects. It also presents numerical models. Buy at Amazon or Comparison Shop at Best Buys Zone
July 03, 2006
An approach to evaluation of the effect of bioremediation on biological activity of environmental contaminants: dechlorination of polychlorinated biphenyls.(Reasearch) ... from: Environmental Health Perspectives
This digital document is an article from Environmental Health Perspectives, published by Thomson Gale on February 1, 2005. The length of the article is 7040 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
Citation Details
Title: An approach to evaluation of the effect of bioremediation on biological activity of environmental contaminants: dechlorination of polychlorinated biphenyls.(Reasearch)
Author: Patricia E. Ganey
Publication: Environmental Health Perspectives (Magazine/Journal)
Date: February 1, 2005
Publisher: Thomson Gale
Volume: 113 Issue: 2 Page: 180(6)
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Wider Application and Diffusion of Bioremediation Technologies: The
In November 1995, the Netherlands sponsored an OECD workshop at which more than 100 experts and policy makers from many countries reviewed the diffusion and industrial application of bioremediation technologies for air and soil. These proceedings provide valuable insights into how to translate environmental problems and liabilities into business opportunities. Buy at Amazon or Comparison Shop at Best Buys Zone
Industrial and agricultural activity throughout this century has led to considerable contamination of soil and groundwater resources by hazardous chemicals. The technique of bioremediation uses living organisms--usually bacteria and fungi--to remove pollutants from soil and water with minimal disturbance to these environments. This approach, which is potentially more cost-effective than traditional techniques such as incineration of soils and carbon filtration of water, requires an understanding of how organisms transform chemicals, how they survive in polluted environments, and how they can be used in the field. This book examines these issues for many of the most serious and common environmental contaminants, presenting the most recent position on the application of bioremediation to polluted soil and water. Buy at Amazon or Comparison Shop at Best Buys Zone