Mechanistic insights into activation of peracetic acid by sludge biogas residue biochar for efficient sulfamethoxazole degradation in aqueous solution
Year: 2024
Type: article
Abstract: The application of peracetic acid (PAA) in the advanced oxidation process has been demonstrated to be an effective approach for treating aqueous organic pollutants. In this study, it is the first time that biogas residue biochar (BRBC) derived from sludge anaerobic digestion plants was prepared and used as a PAA activator for sulfamethoxazole (SMX) degradation. The optimal SMX removal could achieve 92 % within 120 min under acidic conditions. The SMX degradation was slightly enhanced in the presence of Cl − , while it could be inhibited by HCO 3 − . Quenching experiment and EPR analysis demonstrated that both radical and non-radical processes contributed to SMX degradation. ECOSAR analysis showed a significant reduction in intermediate toxicity. Meanwhile, BRBC700 exhibited excellent reusability and stability even in real water matrices. The study presented an innovative approach for biogas residue application and provided a novel pretreatment for SMX-containing wastewater for further biological treatment method after simple acid-base regulation.
Source: Bioresource Technology
Authors: Xiaolong Chen, Yulong Li, Li Wu, Jianming Xue, Xiaoman He, Min Huang, Lie Yang
Institutions: Wuhan University of Technology, Northeast Normal University, Scion
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,740
OpenAlex ID: W4404794575