PMID- 27640057 OWN - NLM STAT- MEDLINE DCOM- 20170522 LR - 20191210 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 24 IP - 7 DP - 2017 Mar TI - Study of the degradation performance (TOC, BOD, and toxicity) of bisphenol A by the photo-Fenton process. PG - 6241-6251 LID - 10.1007/s11356-016-7386-6 [doi] AB - Degradation of bisphenol A (BPA, 0.5 L, 30 mg L(-1)) was studied by photo-Fenton treatment, while Fenton reagents were variables. The efficiency of the degradation process was evaluated by the reduction of total organic carbon (TOC), the biochemical oxygen demand (BOD), and toxicity. For toxicity analysis, bacterial methods were found infeasible, but the in vitro assay of VERO cells culture was successfully applied. Experiments according to a 2(2) design of experiments (DOE) with star points and three center points for statistical validity allowed selecting those process conditions (Fe(II) and H(2)O(2) load) that maximized the process performance. Photo-Fenton process effectively eliminated BPA and partly degraded its by-products (residual TOC <15 %) under substoichiometric H(2)O(2) dose (100.62 mg L(-1)) and at least 4 mg L(-1) Fe(II), after a 90-min treatment. All treated samples were at least partially biodegradable. The cytotoxic concentration (LD(50)) of BPA for VERO cells was 7 mg L(-1). With small H(2)O(2) amount (15.24 mg L(-1)), only low BPA mineralization (TOC = 92 %) was attained. Toxicity was also detected to 50 % of cellular mortality even at long reaction times. However, 40.25 mg L(-1) of H(2)O(2) decreased residual TOC to 70 % while cell mortality decreased down to 25 %. With more H(2)O(2), the residual TOC decreased down to 15 % but cell mortality remained within the 20-25 % level. Photo-Fenton increased the biodegradability and reduced the toxicity of the studied sample. FAU - Perez-Moya, M AU - Perez-Moya M AD - EUETIB-CEIB, Chemical Engineering Department, UPC. BARCELONATECH, C/Comte d'Urgell 187, 08036, Barcelona, Spain. montserrat.perez-moya@upc.edu. FAU - Kaisto, T AU - Kaisto T AD - Faculty of Technology, Lahti University of Applied Sciences, Niemenkatu 73, 15101, Lahti, Finland. FAU - Navarro, M AU - Navarro M AD - EUETIB-CEIB, Chemical Engineering Department, UPC. BARCELONATECH, C/Comte d'Urgell 187, 08036, Barcelona, Spain. FAU - Del Valle, L J AU - Del Valle LJ AD - Center for Research in Nano-Engineering (CrNE), and ETSEIB, Chemical Engineering Department, UPC. BARCELONATECH, Av Diagonal 647, 08028, Barcelona, Spain. LA - eng PT - Journal Article DEP - 20160917 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Benzhydryl Compounds) RN - 0 (Fenton's reagent) RN - 0 (Phenols) RN - 0 (Water Pollutants, Chemical) RN - 7440-44-0 (Carbon) RN - BBX060AN9V (Hydrogen Peroxide) RN - E1UOL152H7 (Iron) RN - MLT3645I99 (bisphenol A) SB - IM MH - Animals MH - Benzhydryl Compounds/*chemistry/*toxicity MH - *Biological Oxygen Demand Analysis MH - Carbon/*analysis MH - Chlorocebus aethiops MH - Hydrogen Peroxide/*chemistry MH - Iron/*chemistry MH - Oxidation-Reduction MH - Phenols/*chemistry/*toxicity MH - *Photolysis MH - Vero Cells MH - Water Pollutants, Chemical/chemistry/toxicity OTO - NOTNLM OT - Advanced oxidation processes OT - Biodegradability OT - Bisphenol A OT - Contaminant of emerging concern OT - Fenton and photo-Fenton reactions OT - Toxicity EDAT- 2016/09/19 06:00 MHDA- 2017/05/23 06:00 CRDT- 2016/09/19 06:00 PHST- 2016/02/29 00:00 [received] PHST- 2016/08/03 00:00 [accepted] PHST- 2016/09/19 06:00 [pubmed] PHST- 2017/05/23 06:00 [medline] PHST- 2016/09/19 06:00 [entrez] AID - 10.1007/s11356-016-7386-6 [pii] AID - 10.1007/s11356-016-7386-6 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2017 Mar;24(7):6241-6251. doi: 10.1007/s11356-016-7386-6. Epub 2016 Sep 17.