eprintid: 1375 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/13/75 datestamp: 2023-11-09 15:49:32 lastmod: 2023-11-09 15:49:32 status_changed: 2023-11-09 15:39:36 type: article metadata_visibility: show creators_name: Elmolla, E.S. creators_name: Chaudhuri, M. title: Effect of photo-fenton operating conditions on the performance of photo-fenton-SBR process for recalcitrant wastewater treatment ispublished: pub keywords: Antibiotics; Efficiency; Effluents; Image processing, Amoxicillin; Antibiotic wastewaters; Cloxacillin; Discharge standards; Hydraulic retention time; Operating condition; Overall efficiency; Photo-Fenton, Wastewater treatment note: cited By 15 abstract: The study was undertaken to examine the effect of H2O2/Fe2+ molar ratio as one of the important operating conditions on the performance of combined photo-Fenton-SBR process for treatment of recalcitrant (antibiotic) wastewater. The SBR was fed with photo-Fenton-treated antibiotic wastewater under five H2O2/Fe2+ molar ratio (10, 20, 50, 100 and 150). The results indicated that, as H2O2/Fe2+ molar ratio decreases (increase of Fe2+ concentration), BOD5/COD ratio of the photo-Fenton-treated effluent increases and SBR and overall efficiency increases. The SBR efficiency in terms of sCOD removal was observed to be very sensitive to BOD5/COD ratio below 0.40. It decreased from 69±1 at BOD/COD ratio of 0.49±0.01 to 44±1 at 0.19±0.02. In this study, the best H2O2/Fe2+ molar ratio for treatment of the antibiotic wastewater was observed to equal 20. At photo-Fenton-SBR operating conditions (H2O2/Fe2+ molar ratio 20, H2O2/COD molar ratio 2.5, pH 3 and 30 min photo-Fenton irradiation time and 24 h hydraulic retention time in SBR), the combined photo-Fenton-SBR efficiency (overall) was 86 as sCOD and final sCOD was 56±2 mg L-1, which meets the requirements of the discharge standard. © 2010 Asian Network for Scientific Information. date: 2010 publisher: Asian Network for Scientific Information official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-78049361628&doi=10.3923%2fjas.2010.3236.3242&partnerID=40&md5=4b28930a772ba4b72b935380a6029378 id_number: 10.3923/jas.2010.3236.3242 full_text_status: none publication: Journal of Applied Sciences volume: 10 number: 24 pagerange: 3236-3242 refereed: TRUE issn: 18125654 citation: Elmolla, E.S. and Chaudhuri, M. (2010) Effect of photo-fenton operating conditions on the performance of photo-fenton-SBR process for recalcitrant wastewater treatment. Journal of Applied Sciences, 10 (24). pp. 3236-3242. ISSN 18125654