Efficient removal of heavy metals by synergistic actions of microorganisms and waste molasses

Yan Sun; Jirong Lan; Yaguang Du; Zhuang Li; Xi Liao; Dongyun Du; Hengpeng Ye; Tian C. Zhang; Shaohua Chen

doi:10.1016/j.biortech.2020.122797

Efficient removal of heavy metals by synergistic actions of microorganisms and waste molasses

Yan Sun, Jirong Lan, Yaguang Du, Zhuang Li, Xi Liao, Dongyun Du, Hengpeng Ye, Tian C. Zhang, Shaohua Chen

Civil Engineering

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

29 Scopus citations

Abstract

In this study, two bacteria strains (Enterobacter sp. SL and Acinetobacter sp. SL-1) and waste molasses (carbon source) were used to remove Zn(II), Cd(II), Cr(VI), and Cr(Total) in the liquid solution (87 mg·L). The results showed the removal efficiencies of Cr(Total) and Cr(VI) could reach over 98.00% after reaction, and the removal efficiencies of Zn(II) and Cd(II) were all about 90.00% by the synergistic actions of microorganisms and waste molasses. In this process, waste molasses provides nutrients for microorganisms and has the characteristics and capability of Cr, Zn, and Cd. Microorganisms mainly use biological adsorption (36.95% and 45.69%) and metabolism (24.37% and 17.05% by producing humic-acid and fulvic-acid like substances) to remove Zn(II) and Cd(II), while waste molasses could to remove Cr(Total) (81.24%) and Cr(VI) (75.90%). This study has potential application value for the treatment of wastewater containing high concentrations of heavy metals.

Original language	English (US)
Article number	122797
Journal	Bioresource Technology
Volume	302
DOIs	https://doi.org/10.1016/j.biortech.2020.122797
State	Published - Apr 2020

Keywords

Biological removal
Heavy metal
Microorganism
Waste molasses

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

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10.1016/j.biortech.2020.122797

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title = "Efficient removal of heavy metals by synergistic actions of microorganisms and waste molasses",

abstract = "In this study, two bacteria strains (Enterobacter sp. SL and Acinetobacter sp. SL-1) and waste molasses (carbon source) were used to remove Zn(II), Cd(II), Cr(VI), and Cr(Total) in the liquid solution (87 mg·L). The results showed the removal efficiencies of Cr(Total) and Cr(VI) could reach over 98.00% after reaction, and the removal efficiencies of Zn(II) and Cd(II) were all about 90.00% by the synergistic actions of microorganisms and waste molasses. In this process, waste molasses provides nutrients for microorganisms and has the characteristics and capability of Cr, Zn, and Cd. Microorganisms mainly use biological adsorption (36.95% and 45.69%) and metabolism (24.37% and 17.05% by producing humic-acid and fulvic-acid like substances) to remove Zn(II) and Cd(II), while waste molasses could to remove Cr(Total) (81.24%) and Cr(VI) (75.90%). This study has potential application value for the treatment of wastewater containing high concentrations of heavy metals.",

keywords = "Biological removal, Heavy metal, Microorganism, Waste molasses",

author = "Yan Sun and Jirong Lan and Yaguang Du and Zhuang Li and Xi Liao and Dongyun Du and Hengpeng Ye and Zhang, {Tian C.} and Shaohua Chen",

note = "Funding Information: This work was financially supported by the National Sci-Tech Support Plan , ( 2015BAB01B03 ), Major Innovation Projects of Hubei Province of China ( 2019ACA156 ), and the National Natural Science Foundation of China ( 51708561 ), which are greatly appreciated; Also, we are highly thankful to Dr. Rao Y. Surampalli for his great advises and supports on this study. Appendix A Funding Information: This work was financially supported by the National Sci-Tech Support Plan, (2015BAB01B03), Major Innovation Projects of Hubei Province of China (2019ACA156), and the National Natural Science Foundation of China (51708561), which are greatly appreciated; Also, we are highly thankful to Dr. Rao Y. Surampalli for his great advises and supports on this study. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = apr,

doi = "10.1016/j.biortech.2020.122797",

language = "English (US)",

volume = "302",

journal = "Bioresource Technology",

issn = "0960-8524",

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TY - JOUR

T1 - Efficient removal of heavy metals by synergistic actions of microorganisms and waste molasses

AU - Sun, Yan

AU - Lan, Jirong

AU - Du, Yaguang

AU - Li, Zhuang

AU - Liao, Xi

AU - Du, Dongyun

AU - Ye, Hengpeng

AU - Zhang, Tian C.

AU - Chen, Shaohua

N1 - Funding Information: This work was financially supported by the National Sci-Tech Support Plan , ( 2015BAB01B03 ), Major Innovation Projects of Hubei Province of China ( 2019ACA156 ), and the National Natural Science Foundation of China ( 51708561 ), which are greatly appreciated; Also, we are highly thankful to Dr. Rao Y. Surampalli for his great advises and supports on this study. Appendix A Funding Information: This work was financially supported by the National Sci-Tech Support Plan, (2015BAB01B03), Major Innovation Projects of Hubei Province of China (2019ACA156), and the National Natural Science Foundation of China (51708561), which are greatly appreciated; Also, we are highly thankful to Dr. Rao Y. Surampalli for his great advises and supports on this study. Publisher Copyright: © 2020 Elsevier Ltd

PY - 2020/4

Y1 - 2020/4

N2 - In this study, two bacteria strains (Enterobacter sp. SL and Acinetobacter sp. SL-1) and waste molasses (carbon source) were used to remove Zn(II), Cd(II), Cr(VI), and Cr(Total) in the liquid solution (87 mg·L). The results showed the removal efficiencies of Cr(Total) and Cr(VI) could reach over 98.00% after reaction, and the removal efficiencies of Zn(II) and Cd(II) were all about 90.00% by the synergistic actions of microorganisms and waste molasses. In this process, waste molasses provides nutrients for microorganisms and has the characteristics and capability of Cr, Zn, and Cd. Microorganisms mainly use biological adsorption (36.95% and 45.69%) and metabolism (24.37% and 17.05% by producing humic-acid and fulvic-acid like substances) to remove Zn(II) and Cd(II), while waste molasses could to remove Cr(Total) (81.24%) and Cr(VI) (75.90%). This study has potential application value for the treatment of wastewater containing high concentrations of heavy metals.

AB - In this study, two bacteria strains (Enterobacter sp. SL and Acinetobacter sp. SL-1) and waste molasses (carbon source) were used to remove Zn(II), Cd(II), Cr(VI), and Cr(Total) in the liquid solution (87 mg·L). The results showed the removal efficiencies of Cr(Total) and Cr(VI) could reach over 98.00% after reaction, and the removal efficiencies of Zn(II) and Cd(II) were all about 90.00% by the synergistic actions of microorganisms and waste molasses. In this process, waste molasses provides nutrients for microorganisms and has the characteristics and capability of Cr, Zn, and Cd. Microorganisms mainly use biological adsorption (36.95% and 45.69%) and metabolism (24.37% and 17.05% by producing humic-acid and fulvic-acid like substances) to remove Zn(II) and Cd(II), while waste molasses could to remove Cr(Total) (81.24%) and Cr(VI) (75.90%). This study has potential application value for the treatment of wastewater containing high concentrations of heavy metals.

KW - Biological removal

KW - Heavy metal

KW - Microorganism

KW - Waste molasses

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DO - 10.1016/j.biortech.2020.122797

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SN - 0960-8524

VL - 302

JO - Bioresource Technology

JF - Bioresource Technology

M1 - 122797

ER -

Efficient removal of heavy metals by synergistic actions of microorganisms and waste molasses

Abstract

Keywords

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