Enhanced sulfate reduction with acidogenic sulfate-reducing bacteria

Aijie Wang; Nanqi Ren; Xu Wang; Duujong Lee

doi:10.1016/j.jhazmat.2007.11.022

Enhanced sulfate reduction with acidogenic sulfate-reducing bacteria

Aijie Wang, Nanqi Ren, Xu Wang, Duujong Lee

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

60 Citations (Scopus)

Abstract

Sulfate reduction in a continuous flow, acidogenic reactor using molasses wastewater as the carbon source was studied at varying chemical oxygen demand/sulfate (COD/SO₄^2-) ratios. At a critical COD/SO₄^2- ratio of 2.7, neither COD nor sulfate were in excess for extra production of ethanol or acetate in the reactor. An acetic-type microbial metabolism was established with sulfate-reducing bacteria (SRB) significantly consuming hydrogen and volatile fatty acids produced by acidogenic bacteria and hydrogen producing acetogens in degrading COD, thereby yielding sulfate removal rate >94.6%. A low critical COD/SO₄^2- ratio of 1.6 was also observed with the enriched ASRB population in reactor which overcomes the barrier to the treatment capability of sulfate-laden wastewater treatment with limited COD supply. © 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1060-1065
Journal	Journal of Hazardous Materials
Volume	154
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jhazmat.2007.11.022
Publication status	Published - 15 Jun 2008
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Research Keywords

Acetate
COD/SO42- ratio
Metabolism
Sulfate-reducing

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10.1016/j.jhazmat.2007.11.022

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title = "Enhanced sulfate reduction with acidogenic sulfate-reducing bacteria",

abstract = "Sulfate reduction in a continuous flow, acidogenic reactor using molasses wastewater as the carbon source was studied at varying chemical oxygen demand/sulfate (COD/SO42-) ratios. At a critical COD/SO42- ratio of 2.7, neither COD nor sulfate were in excess for extra production of ethanol or acetate in the reactor. An acetic-type microbial metabolism was established with sulfate-reducing bacteria (SRB) significantly consuming hydrogen and volatile fatty acids produced by acidogenic bacteria and hydrogen producing acetogens in degrading COD, thereby yielding sulfate removal rate >94.6%. A low critical COD/SO42- ratio of 1.6 was also observed with the enriched ASRB population in reactor which overcomes the barrier to the treatment capability of sulfate-laden wastewater treatment with limited COD supply. {\textcopyright} 2007 Elsevier B.V. All rights reserved.",

keywords = "Acetate, COD/SO42- ratio, Metabolism, Sulfate-reducing",

author = "Aijie Wang and Nanqi Ren and Xu Wang and Duujong Lee",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

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doi = "10.1016/j.jhazmat.2007.11.022",

language = "English",

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T1 - Enhanced sulfate reduction with acidogenic sulfate-reducing bacteria

AU - Wang, Aijie

AU - Ren, Nanqi

AU - Wang, Xu

AU - Lee, Duujong

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2008/6/15

Y1 - 2008/6/15

N2 - Sulfate reduction in a continuous flow, acidogenic reactor using molasses wastewater as the carbon source was studied at varying chemical oxygen demand/sulfate (COD/SO42-) ratios. At a critical COD/SO42- ratio of 2.7, neither COD nor sulfate were in excess for extra production of ethanol or acetate in the reactor. An acetic-type microbial metabolism was established with sulfate-reducing bacteria (SRB) significantly consuming hydrogen and volatile fatty acids produced by acidogenic bacteria and hydrogen producing acetogens in degrading COD, thereby yielding sulfate removal rate >94.6%. A low critical COD/SO42- ratio of 1.6 was also observed with the enriched ASRB population in reactor which overcomes the barrier to the treatment capability of sulfate-laden wastewater treatment with limited COD supply. © 2007 Elsevier B.V. All rights reserved.

AB - Sulfate reduction in a continuous flow, acidogenic reactor using molasses wastewater as the carbon source was studied at varying chemical oxygen demand/sulfate (COD/SO42-) ratios. At a critical COD/SO42- ratio of 2.7, neither COD nor sulfate were in excess for extra production of ethanol or acetate in the reactor. An acetic-type microbial metabolism was established with sulfate-reducing bacteria (SRB) significantly consuming hydrogen and volatile fatty acids produced by acidogenic bacteria and hydrogen producing acetogens in degrading COD, thereby yielding sulfate removal rate >94.6%. A low critical COD/SO42- ratio of 1.6 was also observed with the enriched ASRB population in reactor which overcomes the barrier to the treatment capability of sulfate-laden wastewater treatment with limited COD supply. © 2007 Elsevier B.V. All rights reserved.

KW - Acetate

KW - COD/SO42- ratio

KW - Metabolism

KW - Sulfate-reducing

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-43049102005&origin=recordpage

U2 - 10.1016/j.jhazmat.2007.11.022

DO - 10.1016/j.jhazmat.2007.11.022

M3 - RGC 21 - Publication in refereed journal

C2 - 18093734

SN - 0304-3894

VL - 154

SP - 1060

EP - 1065

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

IS - 1-3

ER -

Enhanced sulfate reduction with acidogenic sulfate-reducing bacteria

Abstract

Bibliographical note

UN SDGs

Research Keywords

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