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growth of free and attached thiobacillus

Growth of free and attached Thiobacillus ferrooxidans in

Growth of free and attached Thiobacillus ferrooxidans in ore suspension. Authors. Romilio T. Espejo, Department of Chemical Engineering, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile; Current affiliation:

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Growth of free and attached Thiobacillus ferrooxidans in

The growth of Thiobacillus ferrooxidans in a copper‐containing ore suspension incubated in shake flasks was studied by determining the number of colony‐forming units both in solution and attached to ore particles. The amounts of iron and copper released from the ore under experimental conditions were also determined. The total ferrous iron either released from the minerals or generated by

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Growth of Thiobacillus ferrooxidans on Elemental Sulfur

Abstract. Growth kinetics of Thiobacillus ferrooxidans in batch cultures, containing prills of elementary sulfur as the sole energy source, were studied by measuring the incorporation of radioactive phosphorus in free and adsorbed bacteria. The data obtained indicate an initial exponential growth of the attached bacteria until saturation of the susceptible surface was reached, followed by a

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Growth and attachment of Thiobacillus ferrooxidans during

01-08-1997· The growth of Thiobacillus ferrooxidans, their attachment to sulfide minerals and detachment during bacterial leaching are discussed in this paper. Growth of the bacteria has been measured by cell count of the supernatants of the mineral suspensions while attachment to minerals and detachment were measured by periodic protein estimations for both the solid and liquid phases.

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Growth of Thiobacillus ferrooxidans on Elemental Sulfur

Growth kinetics of Thiobacillus ferrooxidans in batch cultures, containing prills of elementary sulfur as the sole energy source, were studied by measuring the incorporation of radioactive phosphorus in free and adsorbed bacteria. The data obtained indicate an initial exponential growth of the attached bacteria until saturation of the susceptible surface was reached, followed by a linear

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Growth of Thiobacillus ferrooxidans on elemental sulfur

OSTI.GOV Journal Article: Growth of Thiobacillus ferrooxidans on elemental sulfur. Growth of Thiobacillus ferrooxidans on elemental sulfur

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Characterization of Attachment and Growth of Thiobacillus

Anaerobic growth and attachment of the autotrophic denitrifying bacterium Thiobacillus denitrificans on pyrite surfaces were studied. Polished pyrite slabs were exposed to T. denitrificans for 1 to...

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Characterization of Attachment and Growth of Thiobacillus

Characterization of Attachment and Growth of Thiobacillus denitrificans on Pyrite Surfaces. both attached and free-living bacteria probably contributed to pyrite-driven denitrification.

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Characteristics of attachment and growth of Thiobacillus

01-06-2000· Although attached cells (e.g., Thiobacillus caldus) and cell-sized irregular pits on sulfide surfaces have been observed (Edwards et al., 2000 (Edwards et

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Immobilisation of Thiobacillus ferrooxidans: importance of

01-05-2000· Although bacterial growth was slower at lower pH, controls without glass beads present patterns similar to the ones of cultures with glass beads, at each different pH value, confirming the assumption that free and attached bacteria grow at similar rates at any pH.

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Urease activity in an autotrophic bacteria Thiobacillus

by attached bacteria on the mineral for evaluating the proportion of free and attached bacteria in the bioleaching, but this method can’t apply to Thiobacillus thiooxidans .

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Anaerobic Growth of Thiobacillus ferrooxidans

growth media was quantitatively reduced to ferrous iron. The doubling time in anaerobic cultures was Thiobacillus ferrooxidans is an obligately autotrophic, (2, 3). AtpH2, the free enery changeofthereactionS +6Fe3+ +4H20--H2SO4 +6FeV+ + 6H+ is negative (AG =-314 kJ/mol [2]). However, whether anaerobic ferric iron respiration can

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Acidithiobacillus Wikipedia

Acidithiobacillus is a genus of the Acidithiobacillia in the "Proteobacteria".Like all "Proteobacteria", Acidithiobacillus spp. are Gram-negative.Some members of this genus were classified as Thiobacillus spp., before they were reclassified in 2000.. Acidithiobacillus ferrooxidans (basonym Thiobacillus ferrooxidans) can be isolated from iron-sulfur minerals such as pyrite deposits, oxidising

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Kinetics of growth and elemental sulfur oxidation in batch

OSTI.GOV Journal Article: Kinetics of growth and elemental sulfur oxidation in batch culture of thiobacillus ferrooxidans

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Dipòsit Digital de la Universitat de Barcelona

Anaerobic growth and attachment of the autotrophic denitrifying bacterium Thiobacillus denitrificans on pyrite surfaces were studied. Polished pyrite slabs were exposed to T. denitrificans for 1 to 9 weeks. The reacted pyrite surfaces were imaged with scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM).

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Thiobacillus denitrificans on pyrite surfaces

Characterization of attachment and growth of Thiobacillus denitrificans on pyrite surfaces . Iribar et al. (2008) studied the denitrification capability of sediment-attached and free-living bacteria in an alluvial aquifer and found that bacterial densities and denitrifying

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Dissolution of sulphur particles by Thiobacillus

The growth of Thiobacillus ferrooxidans on sulphur is known to proceed through the attachment of cells to the sulphur particles. Experiments, however, show that the cells in the liquid phase, which are not attached to the sulphur particles, also grow. It has been shown through the use of a two-compartment membrane reactor that

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Oxidation of Ferrous Iron and Elemental Sulfur by

Growth of Thiobacillus ferrooxidans on Elemental Sulfur. Espejo RT, Romero P. Appl Environ Microbiol, 53(8):1907-1912, 01 Aug 1987 Cited by: 12 articles PMID: 16347415 PMCID: PMC204023. Free

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Urease activity in an autotrophic bacteria Thiobacillus

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Characterization of Thiobacillus thioparus LV43 and its

The pH of the medium decreased from 7.5 to 6.5 during growth on thiosulfate. Carbon isotope fractionation values for strain LV43 were within the previously reported range of fractionation values for the overall floating microbial mat in Movile Cave and were similar to values reported for chemoautotrophic sulfur-oxidizing strains of Thiobacillus neapolitanus and Thiomicrospira sp.

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