Cited by Inhibitory effects of biofilms on the adsorption of per- and polyfluorinated alkyl substances by biological activated carbon in practical drinking water treatment plants

Biochar-Enhanced Nitrogen Removal in SBBR Under PFOA Stress: The Role of Quorum Sensing DOI

Zhiqi Lu,

Mengzhe Zhao,

Xianglong He

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(8), P. 3359 - 3359

Published: April 9, 2025

Perfluorooctanoic acid (PFOA), an emerging organic contaminant frequently detected in wastewater, inhibits biological nitrogen removal processes, posing challenges to sustainable wastewater treatment. Mitigating the adverse effects of PFOA while enhancing total (TN) efficiency remains a critical concern. In this study, three sequencing batch biofilm reactors (SBBRs) were operated under low-oxygen conditions with C/N ratio 4.0 investigate enhanced stress using biochar. Compared 78.1% TN control reactor (SBBR-0) initial concentration 50 mg/L, addition decreased by 2.3% SBBR-1, combined and biochar increased it 3.2% SBBR-2. Biochar, acting through its electron-donating surface functional groups, mitigated PFOA-induced reactive oxygen species accumulation adenosine triphosphate production. These promoted generation quorum sensing (QS) signaling molecules, facilitating microbial communication cooperation. Consequently, relative abundance key nitrogen-removing bacteria, such as Thauera (from 7.90% 9.92%) Nitrosomonas 1.42% 5.75%), increased, leading efficiency. A metagenomic analysis revealed that significantly reduced production antibiotic resistance genes without promoting their dissemination. findings provide new insights into mitigating negative improving QS promotion, offering potential approach for sustainability treatment systems.

Language: Английский

Citations

Deciphering the effects of long-term PFOA stress on system performance, microbial communities, and functional gene in denitrifying phosphorus removal processes DOI

Yumeng Yan,

Shaopo Wang,

Rumeng Wang

et al.

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145560 - 145560

Published: April 1, 2025

Language: Английский

Citations

Inhibitory effects of biofilms on the adsorption of per- and polyfluorinated alkyl substances by biological activated carbon in practical drinking water treatment plants DOI

Zixin Pan,

Zhenguo Qi,

Panyue Zhang

et al.

Journal of Environmental Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations