Critical values of the volumetric oxygen transfer coefficient and oxygen concentration that prevent oxygen limitation in ferrous iron and elemental sulfur oxidation by Acidithiobacillus ferrooxidans

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00077535" target="_blank" >RIV/00216224:14310/14:00077535 - isvavai.cz</a>

Result on the web

<a href="http://www.researchgate.net/profile/Martin_Mandl/publications" target="_blank" >http://www.researchgate.net/profile/Martin_Mandl/publications</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.hydromet.2014.09.009" target="_blank" >10.1016/j.hydromet.2014.09.009</a>

Result language

angličtina

Original language name

Critical values of the volumetric oxygen transfer coefficient and oxygen concentration that prevent oxygen limitation in ferrous iron and elemental sulfur oxidation by Acidithiobacillus ferrooxidans

Original language description

Biochemical and biotechnological aspects of aeration conditions in iron- and sulfur-oxidizing Acidithiobacillus ferrooxidans cultures were studied. The critical values of volumetric oxygen transfer coefficient, (kLa)crit, and oxygen concentration, Ccrit,were used to define the conditions necessary for minimum aeration and to eliminate potential oxygen limitation during substrate oxidation by themodel bioleaching culture. The Michaelis constants for oxygenwere 1.07 and 0.61 umol O2/l for the oxidation of ferrous iron and elemental sulfur, respectively. The Ccrit values, below which oxygen limitation may occur, were 6.250 and 3.125 umol O2/l, determined in respirometric experiments for the oxidation of ferrous iron and elemental sulfur, respectively. The rates of iron and sulfur oxidation were also determined at the Ccrit values by measuring the formation of ferric iron and protons in the corresponding cell suspensions. Neither iron nor sulfur oxidation was limited by oxygen at Ccrit.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Hydrometallurgy

ISSN

0304-386X

e-ISSN

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Volume of the periodical

150

Issue of the periodical within the volume

December

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

5

Pages from-to

276-280

UT code for WoS article

000347020600035

EID of the result in the Scopus database

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