Biodegradation of Amoxicillin, Tetracyclines and Sulfonamides in Wastewater Sludge
| Autor: | Chien Liu, Bea-Ven Chang, Chu-Wen Yang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
lcsh:Hydraulic engineering
Novosphingobium Achromobacter Geography Planning and Development 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences Aquatic Science biodegradation 01 natural sciences Biochemistry antibiotics Microbiology lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 0105 earth and related environmental sciences Water Science and Technology Comamonas lcsh:TD201-500 021110 strategic defence & security studies biology Chemistry biology.organism_classification Sphingomonas sludge Cupriavidus Pandoraea Alcaligenes Rhodococcus |
| Zdroj: | Water, Vol 12, Iss 2147, p 2147 (2020) Water Volume 12 Issue 8 |
| ISSN: | 2073-4441 |
| Popis: | The removal of antibiotics from the aquatic environment has received great interest. The aim of this study is to examine degradation of oxytetracycline (OTC), tetracycline (TC), chlortetracycline (CTC), amoxicillin (AMO), sulfamethazine (SMZ), sulfamethoxazole (SMX), sulfadimethoxine (SDM) in sludge. Four antibiotic-degrading bacterial strains, SF1 (Pseudmonas sp.), A12 (Pseudmonas sp.), strains B (Bacillus sp.), and SANA (Clostridium sp.), were isolated, identified and tested under aerobic and anaerobic conditions in this study. Batch experiments indicated that the addition of SF1 and A12 under aerobic conditions and the addition of B and SANA under anaerobic conditions increased the biodegradation of antibiotics in sludge. Moreover, the results of repeated addition experiments indicated that the efficiency of the biodegradation of antibiotics using the isolated bacterial strains could be maintained for three degradation cycles. Two groups of potential microbial communities associated with the aerobic and anaerobic degradation of SMX, AMO and CTC in sludge were revealed. Twenty-four reported antibiotics-degrading bacterial genera (Achromobacter, Acidovorax, Acinetobacter, Alcaligenes, Bacillus, Burkholderia, Castellaniella, Comamonas, Corynebacterium, Cupriavidus, Dechloromonas, Geobacter, Gordonia, Klebsiella, Mycobacterium, Novosphingobium, Pandoraea, Pseudomonas, Rhodococcus, Sphingomonas, Thauera, Treponema, Vibrio and Xanthobacter) were found in both the aerobic and anaerobic groups, suggesting that these 24 bacterial genera may be the major antibiotic-degrading bacteria in sludge. |
| Databáze: | OpenAIRE |
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