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

J 2014

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

MANDL, Martin, Eva PAKOSTOVÁ a Lenka POSKEROVÁ

Základní údaje

Originální název

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

Název česky

Kritické hodnoty objemového koeficientu přestupu kyslíku a koncentrace kyslíku, jež zabraňují kyslíkové limitaci během oxidace Fe(II) a S bakteriemi Acidithiobacillus ferrooxidans

Autoři

MANDL, Martin (203 Česká republika, garant, domácí), Eva PAKOSTOVÁ (203 Česká republika, domácí) a Lenka POSKEROVÁ (203 Česká republika, domácí)

Vydání

Hydrometallurgy, Amsterdam, Elsevier, 2014, 0304-386X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

20501 Materials engineering

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL URL

Impakt faktor

Impact factor: 1.933

Kód RIV

RIV/00216224:14310/14:00077535

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.hydromet.2014.09.009

UT WoS

000347020600035

Klíčová slova česky

Acidithiobacillus ferrooxidans; aerace; limitace kyslíkem; objemový koeficient přestupu kylsíku.

Klíčová slova anglicky

Acidithiobacillus ferrooxidans; aeration; iron-oxidizing bacteria; oxygen limitation; sulfur-oxidizing bacteria; volumetric oxygen transfer coefficient.

Štítky

AKR, rivok

Změněno: 13. 1. 2016 14:33, doc. Ing. Martin Mandl, CSc.

Anotace

ORIG CZ

V originále

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. The (kLa)crit values required to maintain oxygen-unlimited oxidation of ferrous iron and elemental sulfur were 7.70 and 4.88/h, respectively.

Česky

Kritické hodnoty objemového koeficientu přestupu kyslíku a koncentrace kyslíku, zabraňující limitaci kyslíkem, byly definovány a určeny pro kultury bakterií Acidithiobacillus ferrooxidans.

Citovat

MANDL, Martin, Eva PAKOSTOVÁ a Lenka POSKEROVÁ. 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. Hydrometallurgy. Amsterdam: Elsevier, 2014, roč. 150, December, s. 276-280. ISSN 0304-386X. Dostupné z: https://dx.doi.org/10.1016/j.hydromet.2014.09.009.

@article{1210773,
   author = {Mandl, Martin and Pakostová, Eva and Poskerová, Lenka},
   article_location = {Amsterdam},
   article_number = {December},
   doi = {http://dx.doi.org/10.1016/j.hydromet.2014.09.009},
   keywords = {Acidithiobacillus ferrooxidans; aeration; iron-oxidizing bacteria; oxygen limitation; sulfur-oxidizing bacteria; volumetric oxygen transfer coefficient.},
   language = {eng},
   issn = {0304-386X},
   journal = {Hydrometallurgy},
   title = {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},
   url = {http://www.researchgate.net/profile/Martin_Mandl/publications},
   volume = {150},
   year = {2014}
}

TY  - JOUR
ID  - 1210773
AU  - Mandl, Martin - Pakostová, Eva - Poskerová, Lenka
PY  - 2014
TI  - 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
JF  - Hydrometallurgy
VL  - 150
IS  - December
SP  - 276-280
EP  - 276-280
PB  - Elsevier
SN  - 0304386X
KW  - Acidithiobacillus ferrooxidans
KW  - aeration
KW  - iron-oxidizing bacteria
KW  - oxygen limitation
KW  - sulfur-oxidizing bacteria
KW  - volumetric oxygen transfer coefficient.
UR  - http://www.researchgate.net/profile/Martin_Mandl/publications
L2  - http://www.researchgate.net/profile/Martin_Mandl/publications
N2  - 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. The (kLa)crit values required to maintain oxygen-unlimited oxidation of ferrous iron and elemental sulfur were 7.70 and 4.88/h, respectively.
ER  -

MANDL, Martin, Eva PAKOSTOVÁ a Lenka POSKEROVÁ. 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. \textit{Hydrometallurgy}. Amsterdam: Elsevier, 2014, roč.~150, December, s.~276-280. ISSN~0304-386X. Dostupné z: https://dx.doi.org/10.1016/j.hydromet.2014.09.009.

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