Effects of biochar on catalysis treatment of 4-nonylphenol in estuarine sediment and associated microbial community structure

Chang-Mao Hung; Chin-Pao Huang; Chiu-Wen Chen; Shu-Ling Hsieh; Cheng-Di Dong

doi:10.1016/j.envpol.2020.115673

Effects of biochar on catalysis treatment of 4-nonylphenol in estuarine sediment and associated microbial community structure

Environ Pollut. 2021 Jan 1;268(Pt B):115673. doi: 10.1016/j.envpol.2020.115673. Epub 2020 Sep 17.

Authors

Chang-Mao Hung¹, Chin-Pao Huang², Chiu-Wen Chen¹, Shu-Ling Hsieh³, Cheng-Di Dong⁴

Affiliations

¹ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
² Department of Civil and Environmental Engineering, University of Delaware, Newark, USA.
³ Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
⁴ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan. Electronic address: cddong@nkust.edu.tw.

PMID: 33007651
DOI: 10.1016/j.envpol.2020.115673

Abstract

The effect of pyrolysis temperature on the generation of polycyclic aromatic hydrocarbons (PAHs) in sewage sludge biochar (SSB) and the removal of hazardous chemicals from esturine sediments by SSB and sodium percarbonate (SPC), exemplified by 4-nonylphenol (4-NP) were studied. SSB synthesized at 500 °C (SSB500) achieved the highest 4-NP degradation efficiency of 73%, at pH₀ 9.0 in 12 h of reaction time. The enhanced 4-NP degradation was attributed to the SSB500 activation activation of SPC that produced sufficient •OH and CO₃^-• due to electron-transfer interaction on the Fe-Mn redox pairs. The microbial community diversity and composition of the treated sediment were compared using high-throughput sequencing. Results showed SSB/SPC treatment increased the microbial diversity and richness in the sediments. Proteobacteria were the keystone phylum, while Thioalkalispira genera were responsible for 4-NP degradation in the SSB/SPC treatment. Over all, results revealed the change in the bacterial community during the environmental applications of SSB, which provided essential information for better understanding of the monitoring and improvement of sustainable sediment ecosystems.

Keywords: 4-Nonylphenol (4-NP); Biochar; Microbial community structure; Pyrolysis; Sludge.

MeSH terms

Catalysis
Charcoal
Microbiota*
Phenols
Polycyclic Aromatic Hydrocarbons*
Sewage

Substances

Phenols
Polycyclic Aromatic Hydrocarbons
Sewage
biochar
Charcoal
4-nonylphenol