Experimental measurements of short-term adsorption of Acidithiobacillus ferrooxidans onto chalcopyrite

Zhao Hui Wang; Xue Hui Xie; Jian She Liu

doi:10.1016/S1003-6326(11)61196-5

Experimental measurements of short-term adsorption of Acidithiobacillus ferrooxidans onto chalcopyrite

Zhao Hui Wang, Xue Hui Xie, Jian She Liu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The influencing factors in adsorption such as adsorption time, pulp concentration, bacterial concentration, pH as well as ionic strength were investigated to explore the relationship among them and bacterial adsorption. The adsorption was a rapid process for bacterial adhesion to chalcopyrite. The extent of adsorption increased with increasing initial bacterial concentration and pulp concentration. The optimal pH for Acidithiobacillus ferrooxidans adsorption onto chalcopyrite surfaces was in the range of pH 1-3. The increase of ionic strength led to decrease in bacterial adsorption, which can be well explained by electric double layer theory. The adsorption behavior appeared to be controlled by both hydrophobic and electrostatic interactions at the interface of bacteria and mineral.

Original language	English
Pages (from-to)	442-446
Number of pages	5
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	22
Issue number	2
DOIs	https://doi.org/10.1016/S1003-6326(11)61196-5
State	Published - Feb 2012
Externally published	Yes

Keywords

Acidithiobacillus ferrooxidans
bacterial adsorption
chalcopyrite
hydrophobicity
ionic strength

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10.1016/S1003-6326(11)61196-5

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title = "Experimental measurements of short-term adsorption of Acidithiobacillus ferrooxidans onto chalcopyrite",

abstract = "The influencing factors in adsorption such as adsorption time, pulp concentration, bacterial concentration, pH as well as ionic strength were investigated to explore the relationship among them and bacterial adsorption. The adsorption was a rapid process for bacterial adhesion to chalcopyrite. The extent of adsorption increased with increasing initial bacterial concentration and pulp concentration. The optimal pH for Acidithiobacillus ferrooxidans adsorption onto chalcopyrite surfaces was in the range of pH 1-3. The increase of ionic strength led to decrease in bacterial adsorption, which can be well explained by electric double layer theory. The adsorption behavior appeared to be controlled by both hydrophobic and electrostatic interactions at the interface of bacteria and mineral.",

keywords = "Acidithiobacillus ferrooxidans, bacterial adsorption, chalcopyrite, hydrophobicity, ionic strength",

author = "Wang, \{Zhao Hui\} and Xie, \{Xue Hui\} and Liu, \{Jian She\}",

year = "2012",

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doi = "10.1016/S1003-6326(11)61196-5",

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T1 - Experimental measurements of short-term adsorption of Acidithiobacillus ferrooxidans onto chalcopyrite

AU - Wang, Zhao Hui

AU - Xie, Xue Hui

AU - Liu, Jian She

PY - 2012/2

Y1 - 2012/2

N2 - The influencing factors in adsorption such as adsorption time, pulp concentration, bacterial concentration, pH as well as ionic strength were investigated to explore the relationship among them and bacterial adsorption. The adsorption was a rapid process for bacterial adhesion to chalcopyrite. The extent of adsorption increased with increasing initial bacterial concentration and pulp concentration. The optimal pH for Acidithiobacillus ferrooxidans adsorption onto chalcopyrite surfaces was in the range of pH 1-3. The increase of ionic strength led to decrease in bacterial adsorption, which can be well explained by electric double layer theory. The adsorption behavior appeared to be controlled by both hydrophobic and electrostatic interactions at the interface of bacteria and mineral.

AB - The influencing factors in adsorption such as adsorption time, pulp concentration, bacterial concentration, pH as well as ionic strength were investigated to explore the relationship among them and bacterial adsorption. The adsorption was a rapid process for bacterial adhesion to chalcopyrite. The extent of adsorption increased with increasing initial bacterial concentration and pulp concentration. The optimal pH for Acidithiobacillus ferrooxidans adsorption onto chalcopyrite surfaces was in the range of pH 1-3. The increase of ionic strength led to decrease in bacterial adsorption, which can be well explained by electric double layer theory. The adsorption behavior appeared to be controlled by both hydrophobic and electrostatic interactions at the interface of bacteria and mineral.

KW - Acidithiobacillus ferrooxidans

KW - bacterial adsorption

KW - chalcopyrite

KW - hydrophobicity

KW - ionic strength

UR - https://www.scopus.com/pages/publications/84863296878

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DO - 10.1016/S1003-6326(11)61196-5

M3 - 文章

AN - SCOPUS:84863296878

SN - 1003-6326

VL - 22

SP - 442

EP - 446

JO - Transactions of Nonferrous Metals Society of China (English Edition)

JF - Transactions of Nonferrous Metals Society of China (English Edition)

IS - 2

ER -

Experimental measurements of short-term adsorption of Acidithiobacillus ferrooxidans onto chalcopyrite

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