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Accelerated ciprofloxacin biodegradation in the presence of magnetite nanoparticles
- Source :
- Chemosphere. 188:168-173
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Ciprofloxacin (CIP) biodegradation was investigated using enrichments obtained in the presence of magnetite nanoparticles, CIP and human fecal sewage. CIP addition inhibited methanogenic activity and altered the bacterial community composition. The magnetite-supplemented enrichments significantly promoted CIP biodegradation, especially in the presence of 2-bromoethanesulfonate (BES). When BES was added, CIP biodegradation in the magnetite-supplemented enrichments was 67% higher than in the magnetite-unamended enrichments. Fe (II) concentrations were also significantly increased in the BES and magnetite-supplemented enrichments. This indicated that there might be a positive relationship of CIP biodegradation with microbial reduction of Fe (III) to Fe (II). As for the magnetite-supplemented enrichments, DNA-sequencing analysis revealed that Stenotrophomonas was the dominant genus, while Desulfovibrio became the dominant genus in the presence of BES. These two genera might be related to Fe (III) reduction in the magnetite. The findings provide a strategy for improving CIP biodegradation during waste treatment.
- Subjects :
- 0301 basic medicine
China
Environmental Engineering
Health, Toxicology and Mutagenesis
Sewage
010501 environmental sciences
Waste Disposal, Fluid
01 natural sciences
Microbiology
03 medical and health sciences
chemistry.chemical_compound
Ciprofloxacin
medicine
Humans
Environmental Chemistry
Magnetite Nanoparticles
0105 earth and related environmental sciences
Magnetite
biology
business.industry
Chemistry
Public Health, Environmental and Occupational Health
General Medicine
General Chemistry
Biodegradation
biology.organism_classification
Pollution
Desulfovibrio
Stenotrophomonas
Anaerobic digestion
Waste treatment
Biodegradation, Environmental
030104 developmental biology
Alkanesulfonic Acids
Environmental chemistry
business
Water Pollutants, Chemical
medicine.drug
Subjects
Details
- ISSN :
- 00456535
- Volume :
- 188
- Database :
- OpenAIRE
- Journal :
- Chemosphere
- Accession number :
- edsair.doi.dedup.....558d6a5320d85fbad639baf1ca3c0ba8