Carbamazepine biodegradation and volatile fatty acids production by selectively enriched sulfate‐reducing bacteria and fermentative acidogenic bacteria

Khurram Tahir; Waheed Miran; Jiseon Jang; Asif Shahzad; Mokrema Moztahida; Bolam Kim; Seong‐Rin Lim; Dae Sung Lee

doi:10.1002/jctb.6572

journal article Oct 05, 2020

Carbamazepine biodegradation and volatile fatty acids production by selectively enriched sulfate‐reducing bacteria and fermentative acidogenic bacteria

Khurram Tahir Waheed Miran Jiseon Jang Asif Shahzad Mokrema Moztahida Bolam Kim Seong‐Rin Lim Dae Sung Lee

Journal of Chemical Technology & Biotechnology Vol. 96 No. 3 pp. 592-602 · Wiley

View at Publisher Save 10.1002/jctb.6572

Abstract

AbstractBACKGROUNDThe micropollutant carbamazepine (CBZ) is persistent and resistant to conventional wastewater treatment. This study investigated the role of fermentative acidogenic bacteria (FAB) and sulfate‐reducing bacteria (SRB) for CBZ biodegradation and volatile fatty acid (VFA) production.RESULTSThe experimental results demonstrated that CBZ biodegradation, total organic carbon and sulfate removal efficiency reached 46%, 36% and 98%, respectively, after 144 h of operation with VFA production of acetic acid (20.72 mmol L−1), propionic acid (3.67 mmol L−1) and butyric acid (4.90 mmol L−1). However, the acetate fraction decreased from 78% to 70% with a decrease in chemical oxygen demand/sulfate (COD:SO42−) ratios from 1.06 to 0.35, respectively, suggesting that acetate was partially oxidized by SRB under substrate/COD limiting conditions. The biodegradation performance of SRB + FAB was also compared with that of a mixed microbial community (MMC).CONCLUSIONSUpon increasing the initial CBZ concentration from 42.3 to 169.2 μmol L−1, SRB + FAB exhibited much higher CBZ biodegradation (33%) than MMC (12%). Microbial community analyses confirmed the enrichment of VFA‐producing species including phylum Firmicutes (2.4% to 36.8%) and class Clostridia (1.3% to 29.6%). Moreover, aromatic and nitroaromatic compound‐degrading bacteria such as Escherichia and Desulfovibrio were also enriched. This signifies the applicability of SRB + FAB to pharmaceutical pollutant biodegradation in the environment. © 2020 Society of Chemical Industry (SCI)

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Details

Published: Oct 05, 2020
Vol/Issue: 96(3)
Pages: 592-602
License: View

Authors

K

Khurram Tahir

Department of Environmental Engineering Kyungpook National University Daegu Republic of Korea; Department of Chemical Engineering COMSATS University Islamabad Lahore Pakistan

W

Waheed Miran

International Center for Materials Nanoarchitectonics National Institute for Materials Science Ibaraki Japan

J

Jiseon Jang

R&D Institute of Radioactive Wastes Korea Radioactive Waste Agency Daejeon Republic of Korea

A

Asif Shahzad

Department of Environmental Engineering Kyungpook National University Daegu Republic of Korea

M

Mokrema Moztahida

Department of Environmental Engineering Kyungpook National University Daegu Republic of Korea

B

Bolam Kim

Department of Environmental Engineering Kyungpook National University Daegu Republic of Korea

S

Seong‐Rin Lim

Department of Environmental Engineering Kangwon National University Chuncheon Republic of Korea

D

Dae Sung Lee

Department of Environmental Engineering Kyungpook National University Daegu Republic of Korea

Funding

National Research Foundation of Korea Award: NRF‐2018R1A6A1A03024962

Cite This Article

Khurram Tahir, Waheed Miran, Jiseon Jang, et al. (2020). Carbamazepine biodegradation and volatile fatty acids production by selectively enriched sulfate‐reducing bacteria and fermentative acidogenic bacteria. Journal of Chemical Technology & Biotechnology, 96(3), 592-602. https://doi.org/10.1002/jctb.6572

Carbamazepine biodegradation and volatile fatty acids production by selectively enriched sulfate‐reducing bacteria and fermentative acidogenic bacteria

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