Download or read book Determination of Activity Parameters in Thiobacillus Ferrooxidans Strains as Criteria for Mineral Leaching Efficiency UP M 589 written by and published by . This book was released on 1989 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial leaching of sulfide ores using Thiobacillus ferrooxidans is an important process for the extraction of economically valuable metals from ores not amenable to traditional methods, with the advantage of not releasing the oxidized sulfur into the atmosphere. In spite of its great potential, the use of bacterial leaching has been limited, mainly because of the relatively slow rate and low concentration of metals extracted into solution. This report presents the results of tests using a number of strains of T. ferrooxidans and T. thiooxidans on growth and activity, including the effects of metals (Cu, Zn and other inhibitory metals often released from sulfide ores), to establish criteria essential for the selection of strains best suited for effective leaching.
Download or read book Novel Food and Feed Safety SET 1 Safety Assessment of Transgenic Organisms OECD Consensus Documents Volumes 1 and 2 written by OECD and published by OECD Publishing. This book was released on 2008-08-08 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt: These OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries.
Download or read book Harmonisation of Regulatory Oversight in Biotechnology Safety Assessment of Transgenic Organisms Volume 2 OECD Consensus Documents written by OECD and published by OECD Publishing. This book was released on 2006-07-24 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: These OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries.
Download or read book Safety Assessment of Transgenic Organisms written by and published by . This book was released on 2006 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of OECD Biosafety consensus documents is to identify elements of scientific information used in the environmental safety/ risk assessment of transgenic organisms which are common to OECD member countries. This is intended to encourage information sharing and prevent duplication of effort among countries. These two volumes bring together for the first time these Biosafety consensus documents in order for these documents to be distributed more widely and utilized more easily by intended users, such as applicants for commercialization, regulators in national authorities and researchers.
Download or read book Applied and Environmental Microbiology written by and published by . This book was released on 1999 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CANMET Special Publication written by and published by . This book was released on 1990 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CANMET Catalogue of Publications written by Canada Centre for Mineral and Energy Technology and published by . This book was released on 1990 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microlog Canadian Research Index written by and published by . This book was released on 1990 with total page 1222 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 1164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Leaching by Thiobacillus Ferrooxidans Strains and Their Ferrous Iron and Sulfur Oxidation and Ferric Iron Reduction Activities microform written by Travis L. Takeuchi, (Travis Lee) and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1990 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bacteria in Mining and Metallurgy written by Joseph A. Sutton and published by . This book was released on 1961 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Leaching by Thiobacillus Ferrooxidans Strains and Their Ferrous Iron and Sulfur Oxidation and Ferric Iron Reduction Activities written by Travis L. Takeuchi and published by . This book was released on 1990 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Iron Oxidation by Thiobacillus Ferrooxidans written by Sun Ki Kang and published by . This book was released on 1989 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bacterium most frequently used in microbial leaching processes and studies is Thiobacillus ferrooxidans. Applications of this bacterium include the treatment of coal, low-grade ores and industrial solid wastes for the solubilization of pyrite and other trace metals associated with sulfides. The goal of this study was the development of a standard procedure that can be used for screening or comparing various strains of Thiobacillus ferrooxidans. Measuring the oxidation of ferrous iron is a quick and simple method for predicting the relative effectiveness of a given strain of T. ferrooxidans in microbial leaching operations. When conducting experiments for the relative determination of bacterial activity, 9K medium with a low initial soluble ferrous iron concentration and a pH of approximately 2.0 is recommended. Also it is important to begin with the same ferric iron concentration in bacterial cultures, while minimizing the amount of precipitated iron. The effect of inoculum size on the maximum oxidation rate of ferrous iron is negligible; however, lag time can be reduced by using larger inocula.
Download or read book Bacteria in Mining and Metallurgy written by Charles W. Huggins and published by . This book was released on 1961 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential Genetic Engineering of Thiobacillus Ferrooxidans to Optimize the Leaching of Mineral Values written by and published by . This book was released on 1987 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer search of the literature from 1972 to the present, plus secondaryreferences, for the potential for improving microbial leaching of metalsulfides by Thiobacillus ferrooxidans. Threeareas for genetic engineering were targeted: tolerance to heavy metals;tolerance to low temperature; and increased rates of metal sulfide oxidation.
Download or read book Control of Iron and Sulfur Oxidation Activities of Thiobacillus Ferrooxidans and Bacterial Leaching of Metals from Sulfide Ores written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
