文献类型：期刊文献

英文题名：Chelating agents enhanced CaO2 oxidation of bisphenol A catalyzed by Fe3+ and reuse of ferric sludge as a source of catalyst

作者：Zhou, Yanbo[1];Fang, Xingbin[1];Wang, Tenghao[1];Hu, Yonghua[1];Lu, Jun[1]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：313

起止页码：638

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20170103220033);WOS:【SCI-EXPANDED(收录号:WOS:000394723200064)】；

基金：The authors would like to express their sincere gratitude to the Fundamental Research Funds for the Central Universities (WD1414041) and the National Natural Science Foundation of China (51208201) for their financial support of this study.

语种：英文

外文关键词：BPA; Calcium peroxide; Chelating agents; Oxidation; Ferric sludge reuse

摘要：The performance of calcium peroxide (CaO2) oxidation catalyzed by Fe3+ for the removal of bisphenol A (BPA) from aqueous solution was investigated. The ability of chelating agents (CAs), such as citric acid (CA), oxalic acid (OA), ethylenediaminetetraacetic (EDTA) and tartaric acid (TA), to accelerate the BPA degradation and to reduce the Fe3+ dosage was assessed. Furthermore, ferric sludge was reused as a source of catalyst to reduce solid waste accumulation. Results showed that the dosage of CaO2 and Fe3+ progressively influenced the BPA degradation and the optimal dosage was 2.0 mM CaO2 and 3.0 mM Fe3+. The addition of CAs effectively enhanced the BPA removal in CaO2/Fe3+ system and remarkably reduced Fe3+ utilization from 3.0 mM to 0.25 mM. BPA degradation increased from 21.3% (without CAs) to 98.3%, 98.9%, 95.5%, 95.0% with 1.0 mM CA, OA, EDTA and TA respectively. When 2.4 g/L ferric sludge was used as catalyst source, a 95.1% removal of BPA was achieved in the presence of OA. This study presents a high-impact contribution to Fenton-based wastewater treatment that can increase treatment efficiency and decrease waste sludge yield. (C) 2016 Elsevier B.V. All rights reserved.