Microbial removal of Fe(III) impurities from clay using dissimilatory iron reducers

Eun Young Lee; Kyung Suk Cho; Hee Wook Ryu; Yong Keun Chang

doi:10.1016/S1389-1723(99)80054-1

Microbial removal of Fe(III) impurities from clay using dissimilatory iron reducers

Eun Young Lee, Kyung Suk Cho, Hee Wook Ryu, Yong Keun Chang

Department of Environmental Science & Engineering

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

19 Scopus citations

Abstract

Fe(III) impurities, which detract refractoriness and whiteness from porcelain and pottery, could be biologically removed from low-quality clay by indigenous dissimilatory Fe(III)-reducing microorganisms. Insoluble Fe(III) in clay particles was leached out as soluble Fe(II), and the Fe(III) reduction reaction was coupled to the oxidation of sugars such as glucose, maltose and sucrose. A maximum removal of 44-45% was obtained when the relative amount of sugar was 5% (w/w; sugar/clay). By the microbial treatment, the whiteness of the clay was increased from 63.20 to 79.64, whereas the redness was clearly decreased from 13.47 to 3.55.

Original language	English
Pages (from-to)	397-399
Number of pages	3
Journal	Journal of Bioscience and Bioengineering
Volume	87
Issue number	3
DOIs	https://doi.org/10.1016/S1389-1723(99)80054-1
State	Published - 1999

Bibliographical note

Funding Information:
This work was supported by BioProcess Engineering Center, Korea in 1997 (project No. %-K4-10-05-02-00-3).

Keywords

Clay
Iron-reducing microorganisms
Microbial removal

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10.1016/S1389-1723(99)80054-1

Cite this

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title = "Microbial removal of Fe(III) impurities from clay using dissimilatory iron reducers",

abstract = "Fe(III) impurities, which detract refractoriness and whiteness from porcelain and pottery, could be biologically removed from low-quality clay by indigenous dissimilatory Fe(III)-reducing microorganisms. Insoluble Fe(III) in clay particles was leached out as soluble Fe(II), and the Fe(III) reduction reaction was coupled to the oxidation of sugars such as glucose, maltose and sucrose. A maximum removal of 44-45% was obtained when the relative amount of sugar was 5% (w/w; sugar/clay). By the microbial treatment, the whiteness of the clay was increased from 63.20 to 79.64, whereas the redness was clearly decreased from 13.47 to 3.55.",

keywords = "Clay, Iron-reducing microorganisms, Microbial removal",

author = "Lee, {Eun Young} and Cho, {Kyung Suk} and Ryu, {Hee Wook} and Chang, {Yong Keun}",

note = "Funding Information: This work was supported by BioProcess Engineering Center, Korea in 1997 (project No. %-K4-10-05-02-00-3).",

year = "1999",

doi = "10.1016/S1389-1723(99)80054-1",

language = "English",

volume = "87",

pages = "397--399",

journal = "Journal of Bioscience and Bioengineering",

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TY - JOUR

T1 - Microbial removal of Fe(III) impurities from clay using dissimilatory iron reducers

AU - Lee, Eun Young

AU - Cho, Kyung Suk

AU - Ryu, Hee Wook

AU - Chang, Yong Keun

N1 - Funding Information: This work was supported by BioProcess Engineering Center, Korea in 1997 (project No. %-K4-10-05-02-00-3).

PY - 1999

Y1 - 1999

N2 - Fe(III) impurities, which detract refractoriness and whiteness from porcelain and pottery, could be biologically removed from low-quality clay by indigenous dissimilatory Fe(III)-reducing microorganisms. Insoluble Fe(III) in clay particles was leached out as soluble Fe(II), and the Fe(III) reduction reaction was coupled to the oxidation of sugars such as glucose, maltose and sucrose. A maximum removal of 44-45% was obtained when the relative amount of sugar was 5% (w/w; sugar/clay). By the microbial treatment, the whiteness of the clay was increased from 63.20 to 79.64, whereas the redness was clearly decreased from 13.47 to 3.55.

AB - Fe(III) impurities, which detract refractoriness and whiteness from porcelain and pottery, could be biologically removed from low-quality clay by indigenous dissimilatory Fe(III)-reducing microorganisms. Insoluble Fe(III) in clay particles was leached out as soluble Fe(II), and the Fe(III) reduction reaction was coupled to the oxidation of sugars such as glucose, maltose and sucrose. A maximum removal of 44-45% was obtained when the relative amount of sugar was 5% (w/w; sugar/clay). By the microbial treatment, the whiteness of the clay was increased from 63.20 to 79.64, whereas the redness was clearly decreased from 13.47 to 3.55.

KW - Clay

KW - Iron-reducing microorganisms

KW - Microbial removal

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Microbial removal of Fe(III) impurities from clay using dissimilatory iron reducers

Abstract

Bibliographical note

Keywords

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