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Microbial leaching

Microbial leaching of metals from ores is a promising adjunct to more aggressive metal recovery technologies (77), but is generally achieved by oxidative processes that generate very acidic waters. It seems unlikely that similar approaches will be of much value in removing contaminant metals and metalloids from soils. [Pg.36]

Swamy KM, Sukla LB, Narayana KL, Kar KN, Panchanadikar VV (1995) Use of ultrasound in microbial leaching of nickel from laterites. Ultrason Sonochem 2(1) S5-S9... [Pg.267]

Suzuki, I. Microbial leaching of metals from sulfide minerals. Biotechnol. Adv. 2001, 19, 119-132. [Pg.798]

Oxidation of insoluble mineral sulfides to the usually water-soluble sulfates (PbS04 is an exception) can also be carried out in many cases by microbial leaching, that is, by the use of bacteria such as Thiobacillus fer-rooxidans which can use the sulfide-sulfate redox cycle to drive metabolic processes. The overall reaction still consumes oxygen... [Pg.360]

While used extensively in mining and metal recovery, microbial leaching of... [Pg.326]

Rusin, P., Ehrlich, H. L. Developments in Microbial Leaching - Mechanisms of Manganese Solubilization. Vol. 52, p. 1... [Pg.233]

Bacterial leaching of copper by Thiobacillus ferrooxidans has been practiced for years. Yearly, 250000 tons of copper are recovered by microbial leaching techniques in the USA. This process can be represented by the following simplified equations ... [Pg.121]

Figure 2 The sulfate and polysulfide mechanisms in microbial leaching of metal sulfides. MS2 = metal disulfides, MS = metal sulfides M = metal ion S20 = thiosulfate, = poly sulfide, S° = elemental sulfur A/, L/, At = without brackets refers to the enzymatic reaction by A. ferrooxidans, L ferrooxidans, and/or A. thiooxidans (A/, At) = with brackets refers to a possible enzymatic reaction (after Sand et al, 2001). Figure 2 The sulfate and polysulfide mechanisms in microbial leaching of metal sulfides. MS2 = metal disulfides, MS = metal sulfides M = metal ion S20 = thiosulfate, = poly sulfide, S° = elemental sulfur A/, L/, At = without brackets refers to the enzymatic reaction by A. ferrooxidans, L ferrooxidans, and/or A. thiooxidans (A/, At) = with brackets refers to a possible enzymatic reaction (after Sand et al, 2001).
Bhurat, M.C., Dwivedy, K.K., Jayaram, K.M.V. and Dar, K.K., 1973. Some results of microbial leaching of uranium ore samples from Narwapahar, Bhatin and Keruadungri, Singhbhum District, Bihar. Nat. Metal. Lab. Tech. J., 15 47—51. [Pg.393]

Kalinowski, B. E., Oskarsson, A., Albinsson, Y., Arlinger, J., Odegaard-Jensen, A., Andlid, T., and Pedersen, K. (2004). Microbial leaching of uranium and other trace elements from shale mine tailings at Ranslad. Geoderma 122, 177-194. [Pg.88]

KJ Edwards, B Hu, RJ Hamers, JF Banfield. A new look at microbial leaching patterns on sulfide minerals. FEMS Microbiol Ecol 34 197-206, 2001. [Pg.267]

Mousavi SM, Yaghmaei S, Vossoughi M, Roostaazad R, Jafari A, Ebrahimi M, Chabok OH, Turunen I (2008) The effects of Fe(II) and Fe(III) concentration and initial pH on microbial leaching of low-grade sphalerite ore in a column reactor. Bioresour Technol 99 2840-2845... [Pg.125]

Microbiological conversion of traces of minei s in solid waste heaps (microbial leaching). [Pg.314]

See other pages where Microbial leaching is mentioned: [Pg.764]    [Pg.360]    [Pg.326]    [Pg.326]    [Pg.121]    [Pg.121]    [Pg.4705]    [Pg.389]    [Pg.360]    [Pg.242]    [Pg.1199]    [Pg.191]    [Pg.164]   
See also in sourсe #XX -- [ Pg.360 ]

See also in sourсe #XX -- [ Pg.360 ]



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Acid and Microbial Leach Processes

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