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This digital document is an article from Journal of the Air & Waste Management Association, published by Air and Waste Management Association on April 1, 2005. The length of the article is 5078 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: Enhancing bioremediation of diesel oil and gasoline in soil amended with an agroindustry sludge.(TECHNICAL PAPER)
Author: Leandro F. Spinelli
Publication: Journal of the Air & Waste Management Association (Refereed)
Date: April 1, 2005
Publisher: Air and Waste Management Association
Volume: 55 Issue: 4 Page: 421(9)

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Bioremediation and bioprevention - the use of micro-organisms to treat or avoid pollution - are increasingly recognized as treatments of choice in an impressive range of areas. These techniques are more and more employed in both traditional and novel applications to treat air, water, and soil to monitor and prevent pollution to manage life cycles and renew materials and to carry energy. At the OECD Workshop Tokyo '94, 130 international experts from 16 countries met to review the latest scientific and technical advances in the field. As the studies they presented make clear, these are safe and effective technologies. However, they are still at an early stage of development, and their efficacy, reliability, and predictability must and can be improved. Buy at Amazon or Comparison Shop at Best Buys Zone

Provides the reader with a detailed background of the technologies available for the bioremediation of contaminated soil and ground water. Provides the most recent scientific understanding of the processes involved. DLC: Soil remediation. Buy at Amazon or Comparison Shop at Best Buys Zone

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This digital document is an article from Alaska Business Monthly, published by Alaska Business Publishing Company, Inc. on September 1, 1992. The length of the article is 672 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: Treading the proving ground. (use of bioremediation and incinerators for dispose hazardous wastes disposal in Alaska)
Author: Marjorie Murray
Publication: Alaska Business Monthly (Magazine/Journal)
Date: September 1, 1992
Publisher: Alaska Business Publishing Company, Inc.
Volume: v8 Issue: n9 Page: p62(2)

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Many years of explosives manufacturing have contaminated significant quantities of soil at US Army ammunition plants and depots. Public health concerns have helped make composting, a biotreatment process, the Army's technology of choice for treating explosives-contaminated soil.Many years of explosives manufacturing have contaminated significant quantities of soil at US Army ammunition plants and depots. Public health concerns have helped make composting, a biotreatment process, the Army's technology of choice for treating explosives-contaminated soil. Projects are in progress at four installations and two more have been completed in the last year and a half. Composting achieves TNT reduction of up to 99.9% at Army installations and has saved millions of dollars over the cost of incineration, which can be twice as expensive.

This digital document is an article from BioCycle, most recently published by J.G. Press Inc. on March 31, 2001. The length of the article is 1711 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: Military wins with bioremediation through composting
Author: Dave Block
Publication: BioCycle (Feature)
Date: March 31, 2001
Publisher: J.G. Press Inc.
Volume: 42 Issue: 3 Page: 53-54

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From supertanker oil spills to the leaking underground storage tank at the corner gas station, contamination from petroleum hydrocarbons fuels and other organic compounds is an environmental concern that affects nearly every small hamlet and major metropolis throughout the world. Moreover, the world's rivers, estuaries, and oceans are threatened by contamination from petroleum leaks and spills. Fortunately, most petroleum hydrocarbons are amenable to biodegradation, and a considerable body of experience has been build up over the past two decades in applying in situ bioremediation to a variety of contaminants in all media. Good progress is being made in terms of developing innovative, cost-effective in situ approaches to bioremediation. This book provides a comprehensive guide to the latest technological breakthroughs in both the laboratory and the field, covering such topics as air sparging, cometabolic biodegradation, treatment of MTBE, real-time control systems, nutrient addition, rapid biosensor analysis, multiphase extraction, and accelerated bioremediation. This book is one of an eight-volume set of proceedings from the Fifth International In Situ and On-Site Bioremediation Symposium held in San Diego, April 1999. Buy at Amazon or Comparison Shop at Best Buys Zone

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Abstract
Subsurface heterogeneities and the associated interfacial processes impact in situ bioremediation by affecting the availability of substrates to the microorganisms. This research hypothesized that using the scales of subsurface heterogeneities as an organizational principle, a quantitative framework based on a set of dimensionless numbers could be developed to capture the effects of the competing interfacial and biokinetic processes and define the limits for successful application of in situ bioremediation. The overall goal of this study was to use an integrated experimental and numerical modeling approach to evaluate the developed quantitative framework under different simulated scenarios relevant to the subsurface. Three experimental scenarios were selected to simulate field sites limited by either (1) macro-scale vertical transverse dispersion (Scenario #1), (2) micro-scale biokinetics (Scenario #2), or (3) meso-scale sorption/desorption (Scenario #3). Experiments were performed in a saturated, heterogeneous intermediate-scale flow cell (ISFC) with two layers of contrasting hydraulic conductivities and monitored the transport of a naphthalene plume through two phases: Phase 1, simulating an intrinsic biodegradation; and Phase II, simulating an engineered bioremediation, with selected system perturbations. In the first Phase II perturbation, nitrogen (N) and phosphorus (P) amendments in excess of stoichiometric requirements were made, while the second perturbation was selected based on the rate-limiting process identified via the quantitative framework. A numerical model was used to simulate the Phase I experiments and verify the independently determined mass transport and biokinetic parameters, which were then used in the dimensionless parameters of the proposed quantitative framework. Scenario #3 was not completed due to the time constraints, but Scenarios #1 and #2 successfully demonstrated application of the quantitative framework. In Scenario #l, Phase I, vertical dispersion was identified as the overall rate-limiting process. Correspondingly, increased advection and mechanical dispersion in Phase II increased naphthalene biodegradation by ∼2.7 times, whereas the N and P addition had no effect. In Scenario #2, Phase I, dispersion and biokinetics were identified as rate-limiting processes. Thus, in Phase II, N and P addition moderately improved biodegradation, but removal of inhibitory, high salinity conditions to improve the biokinetics increased naphthalene mass loss ∼2.7 times. These results demonstrate the potential for application of the proposed quantitative framework to predict the rate-limiting process for in situ bioremediation and aide in the appropriate selection of any system perturbations for enhancing in situ bioremediation.

Citation Details
Title: Subsurface heterogeneities, interfaces and biodegradation: Defining the limits on in situ bioremediation
Author: Song, Xin
Advisor: Seagren, Eric A.
Degree: PhD (year: 2005)
School: UNIVERSITY OF MARYLAND, COLLEGE PARK
Publish Date: Jan 2006
ISBN: 0-542-24956-1


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This digital document is an article from Club Management, published by Finan Publishing Company, Inc. on October 1, 2001. The length of the article is 1945 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: Bioremediation: An eco-friendly solution for high-maintenance drain problems.
Author: Anne Watson
Publication: Club Management (Magazine/Journal)
Date: October 1, 2001
Publisher: Finan Publishing Company, Inc.
Volume: 80 Issue: 5 Page: 118(8)

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Bioremediation has been a problematic alternative for remediation of metals and inorganic compound contamination. Unlike organic contaminates, which often can be broken down by biological processes into relatively harmless metabolites and byproducts, metals are elemental. Further, metals and their salts often have an inhibitory effect on biological activity. However, despite these potential pitfalls, there has been progress recently in applying bioremediation technologies to metals and inorganics. This volume encompasses topics such as lead solubility reduction, chromium reduction, denitrification, volatilization of selenium in soils, metals recovery from acid mine drainage, and even the possibility of applying artificial neural network technology to aid in bioremediation. This book is part the eight-volume proceedings from the Fifth International In Situ and On-Site Bioremediation Symposium held in San Diego, April 1999. Buy at Amazon or Comparison Shop at Best Buys Zone

Related Articles

Refractive Surgery for High Bilateral Myopia in Children with Neurobehavioral Disorders: 2. Laser-Assisted Subepithelial Keratectomy (LASEK).

J AAPOS. 2006 Aug;10(4):364-370

Authors: Tychsen L, Hoekel J

Introduction: A subpopulation of children with high myopia and neurobehavioral disorders is noncompliant with spectacle wear and ill-suited to correction using contact lenses. We report the results of refractive surgery in a series of these children treated bilaterally using excimer laser technology. Methods: Clinical course and outcome data were collated prospectively in a group of 9 children (mean age, 10.2 years; range, 3-16 years) with neurobehavioral disorders exacerbated by chronic noncompliance with spectacle wear, causing profoundly low functional vision. Myopia in the 18 eyes ranged from -3.75 to -11.5 D (mean -16.6 D) and the desired refraction was approximately +1D. Correction was achieved by bilateral laser-assisted subepithelial keratectomy (ie, LASEK) performed under brief general anesthesia. Mean follow-up was 17 months (range, 6-36 months). Results: Myopia correction averaged 7.9 D. Eighty-nine percent (16/18 eyes) were corrected to within +/-1 D of goal refraction. Uncorrected acuity improved postoperatively in all 18 eyes, with commensurate gains in behavior and environmental visual interaction in 88% (15/17 children). Myopic regression averaged approximately 0.8 D/year. The only complication encountered was mild (1+) corneal haze in 35% of treated eyes. Discussion/Conclusions: Bilateral excimer laser surgery is effective for improving functional vision substantially in highly myopic, neurobehaviorally impaired children who have difficulties wearing glasses. Myopic regression is common. Further study is indicated to determine the long-term safety of these and alternative refractive procedures in similar pediatric populations.

PMID: 16935239 [PubMed - as supplied by publisher]