Effects of excess sludge composting process, environmentally persistent free radicals, and microplastics on antibiotics degradation efficiency of aging biochar
Copyright © 2023 Elsevier Ltd. All rights reserved..
Simulation of microbial aging biochar in compost is an important index for evaluating the biochar degradation efficiency of antibiotics. In this study, biochar was prepared by adding microplastics (MPs) to sludge, and the degradation effect of biochar/(peroxymonosulfate, PMS) on antibiotics was evaluated during the compost aging process of biochar. After the compost aging of biochars, the antibiotic degradation efficiency of HPBC500, HPBC500 + polystyrene (PS), HPBC900/PMS, and HPBC900 + PS/PMS decreased by 6.47, 15.2, 10.16, and 10.33 %, respectively. Environmentally persistent free radicals (EPFRs) and defect structure were the main contributors to the activation of PMS. EPFRs produced through PS pyrolysis of biochar exhibited strong reactivity but poor stability during the degradation of antibiotics. Biochar enhanced the growth of microorganisms in compost but reduced its specific surface area. The antibiotic degradation efficiency of the biochar was positively correlated with the concentration of EPFRs. This study elucidated the durability of different biochar toward antibiotic degradation.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:393 |
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| Enthalten in: |
Bioresource technology - 393(2024) vom: 03. Jan., Seite 130070 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Yanzhuo [VerfasserIn] |
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| Links: |
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| Themen: |
16291-96-6 |
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| Anmerkungen: |
Date Completed 18.01.2024 Date Revised 18.01.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.biortech.2023.130070 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Simulation of microbial aging biochar in compost is an important index for evaluating the biochar degradation efficiency of antibiotics. In this study, biochar was prepared by adding microplastics (MPs) to sludge, and the degradation effect of biochar/(peroxymonosulfate, PMS) on antibiotics was evaluated during the compost aging process of biochar. After the compost aging of biochars, the antibiotic degradation efficiency of HPBC500, HPBC500 + polystyrene (PS), HPBC900/PMS, and HPBC900 + PS/PMS decreased by 6.47, 15.2, 10.16, and 10.33 %, respectively. Environmentally persistent free radicals (EPFRs) and defect structure were the main contributors to the activation of PMS. EPFRs produced through PS pyrolysis of biochar exhibited strong reactivity but poor stability during the degradation of antibiotics. Biochar enhanced the growth of microorganisms in compost but reduced its specific surface area. The antibiotic degradation efficiency of the biochar was positively correlated with the concentration of EPFRs. This study elucidated the durability of different biochar toward antibiotic degradation | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Aging biochar | |
| 650 | 4 | |a Compost | |
| 650 | 4 | |a Environmentally persistent free radicals | |
| 650 | 4 | |a Excess sludge | |
| 650 | 4 | |a Microplastics | |
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| 650 | 7 | |a Free Radicals |2 NLM | |
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| 700 | 1 | |a Sun, Yutai |e verfasserin |4 aut | |
| 700 | 1 | |a He, Rui |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Jiqin |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Tonghuan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xiaozhuan |e verfasserin |4 aut | |
| 700 | 1 | |a Bildyukevich, Alexandr V |e verfasserin |4 aut | |
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