Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures
Biotechnology has limited effectiveness in terms of removing mixed antibiotics at low temperatures, leading to ecological risks arising from the presence of antibiotics in environmental waters. In this study, the removal of tetracycline (TCs) and sulfonamide (SAs) from antibiotic wastewater was impr...
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KeAi Communications Co., Ltd.
2024-12-01
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| Series: | Emerging Contaminants |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405665024000714 |
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| author | Chaoyue He Nuerla Ailijiang Zaimire Abdusalam Yincang Cui Na Li Mei Wu Hailiang Chen Yiming Zhang |
| author_facet | Chaoyue He Nuerla Ailijiang Zaimire Abdusalam Yincang Cui Na Li Mei Wu Hailiang Chen Yiming Zhang |
| author_sort | Chaoyue He |
| collection | DOAJ |
| description | Biotechnology has limited effectiveness in terms of removing mixed antibiotics at low temperatures, leading to ecological risks arising from the presence of antibiotics in environmental waters. In this study, the removal of tetracycline (TCs) and sulfonamide (SAs) from antibiotic wastewater was improved by the intermittent electrical stimulation of anaerobic-aerobic-coupled upflow bioelectrochemical reactors (AO-UBERs) at low temperatures. The removal effects of oxytetracycline and tetracycline were 48.6 ± 3.5 % and 71.5 ± 2.9 %, respectively. Under 0.9V, the removal rates of oxytetracycline, tetracycline, and trimethoprim were significantly increased in both the aerobic-cathodic and anaerobic anodic chambers, with a more obvious increase at low temperatures. Compared with the blank control group, the removal efficiency of oxytetracycline, trimethoprim and tetracycline in the electric group was increased by 11.8 ± 2.5 %, 27.8 ± 10.5 % and 11.2 ± 5.8 %. The anaerobic chamber contributed more to the removal of TCs and trimethoprim than the aerobic chamber. Furthermore, electrical stimulation selectively enriched electroactive bacteria (Methylophage and Pleuromonas), drug-resistant bacteria (Proteobacteria), and nitrifying bacteria associated with biodegradation. The abundance of antibiotic-resistance genes is related to the distribution of potential hosts and mobile genetic elements (sul1), and electrical stimulation induces the enrichment of both. This suggests that while potentially effective for treating TCs- and SAs-containing wastewater at low temperatures, AO-UBERs may lead to the accumulation of antibiotic-resistance genes. |
| format | Article |
| id | doaj-art-e4b5a5b048f9452c91066a82fc0288d6 |
| institution | DOAJ |
| issn | 2405-6650 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Emerging Contaminants |
| spelling | doaj-art-e4b5a5b048f9452c91066a82fc0288d62025-08-20T02:49:56ZengKeAi Communications Co., Ltd.Emerging Contaminants2405-66502024-12-0110410037010.1016/j.emcon.2024.100370Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperaturesChaoyue He0Nuerla Ailijiang1Zaimire Abdusalam2Yincang Cui3Na Li4Mei Wu5Hailiang Chen6Yiming Zhang7Key Laboratory of Oasis Ecology of Education Ministry, College of Ecology and Environment, Xinjiang University, Urumqi, 830017, PR China; Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Urumqi, 830017, PR ChinaKey Laboratory of Oasis Ecology of Education Ministry, College of Ecology and Environment, Xinjiang University, Urumqi, 830017, PR China; Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Urumqi, 830017, PR China; Corresponding author. Key Laboratory of Oasis Ecology of Education Ministry, College of Ecology and Environment, Xinjiang University, Urumqi, 830017, PR China.Key Laboratory of Oasis Ecology of Education Ministry, College of Ecology and Environment, Xinjiang University, Urumqi, 830017, PR China; Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Urumqi, 830017, PR ChinaThe Analysis and Testing Center of Xinjiang University, Urumqi, 830017, Xinjiang, PR China; Corresponding author. The Analysis and Testing Center of Xinjiang University, Urumqi, 830017, Xinjiang, PR China.Key Laboratory of Oasis Ecology of Education Ministry, College of Ecology and Environment, Xinjiang University, Urumqi, 830017, PR China; Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Urumqi, 830017, PR ChinaKey Laboratory of Oasis Ecology of Education Ministry, College of Ecology and Environment, Xinjiang University, Urumqi, 830017, PR China; Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Urumqi, 830017, PR ChinaKey Laboratory of Oasis Ecology of Education Ministry, College of Ecology and Environment, Xinjiang University, Urumqi, 830017, PR China; Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Urumqi, 830017, PR ChinaKey Laboratory of Oasis Ecology of Education Ministry, College of Ecology and Environment, Xinjiang University, Urumqi, 830017, PR China; Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Urumqi, 830017, PR ChinaBiotechnology has limited effectiveness in terms of removing mixed antibiotics at low temperatures, leading to ecological risks arising from the presence of antibiotics in environmental waters. In this study, the removal of tetracycline (TCs) and sulfonamide (SAs) from antibiotic wastewater was improved by the intermittent electrical stimulation of anaerobic-aerobic-coupled upflow bioelectrochemical reactors (AO-UBERs) at low temperatures. The removal effects of oxytetracycline and tetracycline were 48.6 ± 3.5 % and 71.5 ± 2.9 %, respectively. Under 0.9V, the removal rates of oxytetracycline, tetracycline, and trimethoprim were significantly increased in both the aerobic-cathodic and anaerobic anodic chambers, with a more obvious increase at low temperatures. Compared with the blank control group, the removal efficiency of oxytetracycline, trimethoprim and tetracycline in the electric group was increased by 11.8 ± 2.5 %, 27.8 ± 10.5 % and 11.2 ± 5.8 %. The anaerobic chamber contributed more to the removal of TCs and trimethoprim than the aerobic chamber. Furthermore, electrical stimulation selectively enriched electroactive bacteria (Methylophage and Pleuromonas), drug-resistant bacteria (Proteobacteria), and nitrifying bacteria associated with biodegradation. The abundance of antibiotic-resistance genes is related to the distribution of potential hosts and mobile genetic elements (sul1), and electrical stimulation induces the enrichment of both. This suggests that while potentially effective for treating TCs- and SAs-containing wastewater at low temperatures, AO-UBERs may lead to the accumulation of antibiotic-resistance genes.http://www.sciencedirect.com/science/article/pii/S2405665024000714AntibioticsBioelectrochemistryLow temperatureAntibiotic resistance genesBacterial community |
| spellingShingle | Chaoyue He Nuerla Ailijiang Zaimire Abdusalam Yincang Cui Na Li Mei Wu Hailiang Chen Yiming Zhang Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures Emerging Contaminants Antibiotics Bioelectrochemistry Low temperature Antibiotic resistance genes Bacterial community |
| title | Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures |
| title_full | Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures |
| title_fullStr | Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures |
| title_full_unstemmed | Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures |
| title_short | Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures |
| title_sort | intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures |
| topic | Antibiotics Bioelectrochemistry Low temperature Antibiotic resistance genes Bacterial community |
| url | http://www.sciencedirect.com/science/article/pii/S2405665024000714 |
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