Fenton coupled with nanofiltration for elimination of Bisphenol A
作者： I. Escalona , A. Fortuny , F. Stüber , C. Bengoa , A. Fabregat
DOI: 10.1016/J.DESAL.2014.04.024
关键词:
摘要: Abstract Bisphenol A (BPA) is a typical Endocrine Disrupting Chemical (EDC), which potentially harmful during wastewater reclamation. In this study, its degradation Fenton's process under different operational conditions was investigated in combination with subsequent nanofiltration of low concentration remnant BPA and compounds derived from oxidation. The results indicate that could be degraded efficiently aqueous phase by Fenton, even at very hydrogen peroxide doses. treatment up to 300 mg/L solutions Fenton liquor optimal resulted complete removal less than 2 min. were found pHr = 3, H2O2/BPA = 0.20 Fe2+/BPA = 0.012. Five NF polymeric membranes having properties used for the treated non-treated solutions. showed rejection related adsorption ability on membrane size exclusion mechanism. effluent after oxidation, high TOC, COD, colour Fe2+ (> 77%) achieved, although significant fouling also observed. normalised water flux flushing lower 60% almost all membranes, indicates non-easily removable fouling.
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