Bioleaching of Gold Bearing Ores Using Thiobacillus Ferrooxidans PDF Download
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Author: R. Sukhairi Publisher: ISBN: Category : Languages : en Pages : 4
Book Description
With the increase depletion of high grade ores, attention is currently focussed on the extraction of gold from lower grade and refractory ores. To enhance gold recovery from these ores, bioleaching or the application of Thiobacillus ferrooxidans to leach mineral sulphides was used as a pretreatment step. The ore however, was first assessed for its acid consumption and bacterial acid producing potential (BAPP) prior to bioleaching experiments. From the bioleaching experiment, results showed an increase of 30-40% gold being extracted using a local strain of T. ferrooxidans.[Authors' abstract].
Author: R. Sukhairi Publisher: ISBN: Category : Languages : en Pages : 4
Book Description
With the increase depletion of high grade ores, attention is currently focussed on the extraction of gold from lower grade and refractory ores. To enhance gold recovery from these ores, bioleaching or the application of Thiobacillus ferrooxidans to leach mineral sulphides was used as a pretreatment step. The ore however, was first assessed for its acid consumption and bacterial acid producing potential (BAPP) prior to bioleaching experiments. From the bioleaching experiment, results showed an increase of 30-40% gold being extracted using a local strain of T. ferrooxidans.[Authors' abstract].
Author: Douglas E. Rawlings Publisher: Springer Science & Business Media ISBN: 3662061112 Category : Science Languages : en Pages : 302
Book Description
Biomining is the use of microorganisms in the recovery of metals from ores. During bioleaching, metals such as copper, nickel or zinc are oxidized through microbial action from the water-insoluble sulfide to the soluble sulfate forms. Although gold is inert to microbial action, microbes can also be used in gold recovery from certain types of ores because as they oxidize the ore, they open up its structure, thereby allowing a gold-solubilizing agent such as cyanide to penetrate the ore. The book describes several industrial bioleaching and biooxidation processes as well as the underlying theory and biology of the microbes involved.
Author: G.P. Gallios Publisher: Springer Science & Business Media ISBN: 9401722846 Category : Science Languages : en Pages : 407
Book Description
Mineral processing technologies have been used for decades to protect the environment and many examples of such applications are given here. The book covers four major subject areas: fundamentals; environmental pollution and its prevention; separation processes; and innovative techniques. Audience: Scientists, engineers and technologists conducting both applied and basic research into the different environmental aspects of mineral processing.
Author: Katarzyna Chojnacka Publisher: John Wiley & Sons ISBN: 1119133777 Category : Science Languages : en Pages : 588
Book Description
Comprehensive and multidisciplinary presentation of the current trends in trace elements for human, animals, plants, and the environment This reference provides the latest research into the presence, characterization, and applications of trace elements and their role in humans, animals, and plants as well as their use in developing novel, functional feeds, foods, and fertilizers. It takes an interdisciplinary approach to the subject, describing the biological and industrial applications of trace elements. It covers various topics, such as the occurrence, role, and monitoring of trace elements and their characterization, as well as applications from the preliminary research to laboratory trials. Recent Advances in Trace Elements focuses on the introduction and prospects of trace elements; tackles environmental aspects such as sources of emission, methods of monitoring, and treatment/remediation processes; goes over the biological role of trace elements in plants, animals, and human organisms; and discusses the relevance of biomedical applications and commercialization. A compendium of recent knowledge in interdisciplinary trace element research Uniquely covers production and characterization of trace elements, as well as the industrial and biomedical aspects of their use Paves the way for the development of innovative products in diverse fields, including pharmaceuticals, food, environment, and materials science Edited by well-known experts in the field of trace elements with contributions from international specialists from a wide range of areas Unique in presenting comprehensive and multidisciplinary information of the key aspects of trace elements research in a digestible form, this book is essential reading for the novice and expert in the fields of environmental science, analytical chemistry, biochemistry, materials science, pharmaceutical science, nutraceutical, and pharmaceutical sciences. It is also valuable for companies that implement new products incorporating trace elements to the market.
Author: R. Sukhairi
Author: R. Sukhairi
Author: Douglas E. Rawlings
Author: Umbreen Agha
Author: Umbreen Agha
Author: G.P. Gallios
Author: Katarzyna Chojnacka
Author: 
Author: Joseph A. Sutton
Author: Henry Lutz Ehrlich
Author: Giovanni Rossi