Selenium removal using a bacteria cultured reactor packed with alum-impregnated activated alumina

Yuxia Ji; Yi Tin Wang

doi:10.11159/iceptp19.116

Selenium removal using a bacteria cultured reactor packed with alum-impregnated activated alumina

Yuxia Ji, Yi Tin Wang

Civil Engineering

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

Selenium is a primary pollutant that brings a number of threats to the aquatic lives as well as human beings. Bacterial selenium reduction was observed as an effective way for selenium remediation. However, Se(IV) accumulation may occur during Se(VI) reduction due to the slow reduction rate of Se(IV). In this study, an alum-impregnated activated alumina packed bioreactor cultured with Shigella fergusonii strain TB42616 was applied in order to remove Se(IV) during Se(VI) reduction. Approximately 70% selenium was removed under an hydraulic retention time of 3.1 days with no Se(IV) accumulation observed, indicating that Se(IV) removal was enhanced by the adsorption of the alum-impregnated activated alumina. A 10% more selenium removal was also observed by employing alum-impregnated activated alumina instead of unmodified ones.

Original language	English
Article number	116
Journal	World Congress on Civil, Structural, and Environmental Engineering
DOIs	https://doi.org/10.11159/iceptp19.116
State	Published - 2019
Event	4th World Congress on Civil, Structural, and Environmental Engineering, CSEE 2019 - Rome, Italy Duration: Apr 7 2019 → Apr 9 2019

Bibliographical note

Publisher Copyright:
© 2019, Avestia Publishing.

Keywords

Adsorption
Packed-bed reactor
Reduction
Selenium

ASJC Scopus subject areas

Civil and Structural Engineering
Environmental Engineering

Access to Document

10.11159/iceptp19.116

Cite this

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title = "Selenium removal using a bacteria cultured reactor packed with alum-impregnated activated alumina",

abstract = "Selenium is a primary pollutant that brings a number of threats to the aquatic lives as well as human beings. Bacterial selenium reduction was observed as an effective way for selenium remediation. However, Se(IV) accumulation may occur during Se(VI) reduction due to the slow reduction rate of Se(IV). In this study, an alum-impregnated activated alumina packed bioreactor cultured with Shigella fergusonii strain TB42616 was applied in order to remove Se(IV) during Se(VI) reduction. Approximately 70% selenium was removed under an hydraulic retention time of 3.1 days with no Se(IV) accumulation observed, indicating that Se(IV) removal was enhanced by the adsorption of the alum-impregnated activated alumina. A 10% more selenium removal was also observed by employing alum-impregnated activated alumina instead of unmodified ones.",

keywords = "Adsorption, Packed-bed reactor, Reduction, Selenium",

author = "Yuxia Ji and Wang, {Yi Tin}",

note = "Publisher Copyright: {\textcopyright} 2019, Avestia Publishing.; 4th World Congress on Civil, Structural, and Environmental Engineering, CSEE 2019 ; Conference date: 07-04-2019 Through 09-04-2019",

year = "2019",

doi = "10.11159/iceptp19.116",

language = "English",

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TY - JOUR

T1 - Selenium removal using a bacteria cultured reactor packed with alum-impregnated activated alumina

AU - Ji, Yuxia

AU - Wang, Yi Tin

PY - 2019

Y1 - 2019

N2 - Selenium is a primary pollutant that brings a number of threats to the aquatic lives as well as human beings. Bacterial selenium reduction was observed as an effective way for selenium remediation. However, Se(IV) accumulation may occur during Se(VI) reduction due to the slow reduction rate of Se(IV). In this study, an alum-impregnated activated alumina packed bioreactor cultured with Shigella fergusonii strain TB42616 was applied in order to remove Se(IV) during Se(VI) reduction. Approximately 70% selenium was removed under an hydraulic retention time of 3.1 days with no Se(IV) accumulation observed, indicating that Se(IV) removal was enhanced by the adsorption of the alum-impregnated activated alumina. A 10% more selenium removal was also observed by employing alum-impregnated activated alumina instead of unmodified ones.

AB - Selenium is a primary pollutant that brings a number of threats to the aquatic lives as well as human beings. Bacterial selenium reduction was observed as an effective way for selenium remediation. However, Se(IV) accumulation may occur during Se(VI) reduction due to the slow reduction rate of Se(IV). In this study, an alum-impregnated activated alumina packed bioreactor cultured with Shigella fergusonii strain TB42616 was applied in order to remove Se(IV) during Se(VI) reduction. Approximately 70% selenium was removed under an hydraulic retention time of 3.1 days with no Se(IV) accumulation observed, indicating that Se(IV) removal was enhanced by the adsorption of the alum-impregnated activated alumina. A 10% more selenium removal was also observed by employing alum-impregnated activated alumina instead of unmodified ones.

KW - Adsorption

KW - Packed-bed reactor

KW - Reduction

KW - Selenium

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JF - World Congress on Civil, Structural, and Environmental Engineering

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T2 - 4th World Congress on Civil, Structural, and Environmental Engineering, CSEE 2019

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ER -

Selenium removal using a bacteria cultured reactor packed with alum-impregnated activated alumina

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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