| Autor: |
Wu, Mei, Ailijiang, Nuerla, Li, Na, Zaimire, Abudoushalamu, Chen, Hailiang, He, Chaoyue, Zhang, Yiming |
| Předmět: |
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| Zdroj: |
Environmental Science & Pollution Research; Dec2024, Vol. 31 Issue 56, p64493-64508, 16p |
| Abstrakt: |
Biological methods do not effectively remove pharmaceutical products (PPs) and antibiotic resistance genes (ARGs) from wastewater at low temperatures, leading to environmental pollution. Therefore, anaerobic–aerobic-coupled upflow bioelectrochemical reactors (AO-UBERs) were designed to improve the removal of PPs at low temperatures (10 ± 2 °C). The result shows that diclofenac (DIC) and ibuprofen (IBU) removals in the system with aerobic anodic and anaerobic cathodic chambers were 91.7% and 94.7%, higher than that in the control system (12.2 ± 1.5%, 36.5 ± 5.9%), and aerobic zone favors DIC and IBU removal; fluoroquinolone antibiotics (FQs) removals in the system with aerobic cathodic and anaerobic anodic chambers were 17.5–22.4% higher than that in the control system (9.1–22.4%), and anaerobic zone favors FQs removal. Analysis of microbial community structure and ARGs showed that different electrotrophic microbes (Flavobacterium, Acinetobacter, and Delftia) with cold-resistant ability to degrade PPs were enriched in different electrode combinations, and the aerobic cathodic chambers could remove certain ARGs. These results showed that AO-UBERs under intermittent electrical stimulation mode are an alternative method for the effective removal of PPs and ARGs at low temperatures. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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