Photocatalytic degradation of agricultural antibiotics using a UV-LED light source
| Autor: | Cooper H. Langford, Maryam Izadifard, Aramice Y.S. Malkhasian, Gopal Achari |
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| Rok vydání: | 2013 |
| Předmět: |
Photolysis
Sulfamethoxazole Ultraviolet Rays Chemistry Oxytetracycline General Medicine Mineralization (soil science) Contamination Ethinyl Estradiol Light delivery Pollution Anti-Bacterial Agents Light source Spectrophotometry Environmental chemistry Water Pollution Chemical Slurry Photocatalysis Degradation (geology) Photocatalytic degradation Chromatography High Pressure Liquid Environmental Restoration and Remediation Water Pollutants Chemical Food Science |
| Zdroj: | Journal of Environmental Science and Health, Part B. 49:35-40 |
| ISSN: | 1532-4109 0360-1234 |
| DOI: | 10.1080/03601234.2013.836871 |
| Popis: | With a view to developing a UV-LED photocatalytic reactor for small and remote water systems, the degradation of three representative agriculturally produced contaminants, two antibiotics and an endocrine disruptor hormone, was evaluated in a bench 365 nm LED photoreactor using a slurry of the well-known Degussa P25® (TiO2) as photocatalyst. Use of an additional electron capture additives O2 and H2O2 was also assessed. Loss of the parent organic compounds was tracked by HPLC or UV absorbance and mineralization, where feasible, was studied with TOC analysis with conventional instrumentation. In all cases, degradation is significant with moderate light dose. Lab data suggest log reduction with light delivery less than 2.2 kWhr per cubic meter light delivery. |
| Databáze: | OpenAIRE |
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