title: Photocatalytic degradation of agricultural antibiotics using a UV-LED light source.
abstract: 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.
authors.affiliation: a Department of Chemistry , King Abdulaziz University , Jeddah , Saudi Arabia.
authors.forename: Aramice Y S
authors.initials: AY
authors.lastname: Malkhasian
authors.forename: Maryam
authors.initials: M
authors.lastname: Izadifard
authors.forename: Gopal
authors.initials: G
authors.lastname: Achari
authors.forename: Cooper H
authors.initials: CH
authors.lastname: Langford
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D052918:Environmental Restoration and Remediation / Q000379:methods*; D004997:Ethinyl Estradiol / Q000737:chemistry*; D010118:Oxytetracycline / Q000737:chemistry*; D010782:Photolysis; D013053:Spectrophotometry; D013420:Sulfamethoxazole / Q000737:chemistry*; D014466:Ultraviolet Rays; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014877:Water Pollution, Chemical / Q000517:prevention & control*
chemical_list: D000900:Anti-Bacterial Agents; D014874:Water Pollutants, Chemical; D004997:Ethinyl Estradiol; D013420:Sulfamethoxazole; D010118:Oxytetracycline