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  • 缪倩倩,刘宝河,丁素云,娄明月.铜氧化物/D851树脂催化臭氧氧化降解双酚A[J].环境工程学报,2019,13(7):1557-1564.DOI:10.12030/j.cjee.201810039    [点击复制]
  • MIAO Qianqian,LIU Baohe,DING Suyun,LOU Mingyue.Degradation of bisphenol A through catalytic ozonation process with copper oxide/D851 resin[J].,2019,13(7):1557-1564.DOI:10.12030/j.cjee.201810039   [点击复制]
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铜氧化物/D851树脂催化臭氧氧化降解双酚A
缪倩倩1,刘宝河1,丁素云1,娄明月1
0
(1.安徽工业大学能源与环境学院,马鞍山 243000;2.教育部生物膜法水质净化及利用技术工程研究中心,马鞍山 243000)
摘要:
通过Cu(NO3)2·3H2O对螯合树脂D851进行沉淀改性,采用SEM观察、EDS分析、傅里叶变换红外谱图分析对改性前后螯合树脂进行了表征;研究了改性前后螯合树脂在不同反应体系对双酚A的降解效果及环境因素对CuOx/D851催化臭氧氧化双酚A性能的影响;探讨了改性螯合树脂催化臭氧化降解双酚A的机理。结果表明:Cu(NO3)2·3H2O对螯合树脂D851改性后,螯合树脂的表面形态,铜离子含量都有所改变;通过正交实验得出CuOx/D851树脂催化剂的最佳制备工艺是pH为8、活性组分浓度为337.5 mmol·L-1、负载温度为70 ℃、反应时间为10 h;单因素法研究表明,在最佳条件臭氧投加量为8.4 mg·L-1、催化剂投加量为0.6 g·L-1、废水进样流量为4 mL·min-1、双酚A初始浓度为10 mg·L-1、初始pH为7,双酚A的降解率可达86.71%;在改性螯合树脂催化臭氧化体系中,改性后螯合树脂主要通过羟基自由基-直接臭氧氧化协同作用极大地提高了对BPA的降解率。
关键词:  催化臭氧氧化  螯合树脂  双酚A污染  铜氧化物
DOI:10.12030/j.cjee.201810039
投稿时间:2018-10-10
基金项目:安徽高校自然科学研究重点项目KJ2017A065; 2017年度高校优秀骨干青年人才国内外访学研修项目gxfx2017019安徽高校自然科学研究重点项目(KJ2017A065); 2017年度高校优秀骨干青年人才国内外访学研修项目(gxfx2017019)
Degradation of bisphenol A through catalytic ozonation process with copper oxide/D851 resin
MIAO Qianqian1,LIU Baohe1,DING Suyun1,LOU Mingyue1
(1.School of Energy and Environment, Anhui University of Technology, Ma'anshan 243000, China;2.Biofilm Process Water Purification and Utilization Technology Engineering Research Center, Ministry of Education, Ma'anshan 243000, China)
Abstract:
In this study, the chelating resin D851 was modified by Cu(NO3)2·3H2O precipitation, then SEM, EDS and FT-IR were used to characterize the corresponding changes before and after modification of D851. Bisphenol A degradation effects by pristine and modified D851 in different reaction systems were studied, and the influences of environmental factors on the performance of catalytic ozonation of bisphenol A by CuOx/D851 were investigated. Furthermore, the mechanism of bisphenol A degradation by catalytic ozonation with modified D851 was discussed. The results showed that the surface morphology and copper ion content of chelating resin D851 changed after modification by Cu(NO3)2·3H2O precipitation. Through the orthogonal experiments, the optimal preparation conditions for CuOx/D851 resin catalyst was determined as follows: pH 8, active component content of 337.5 mmol·L-1, loading temperature of 70 ℃, and reaction time of 10 h. The single factor method was used to optimize the operational conditions for bisphenol A degradation by catalytic ozonation with modified D851, and the degradation rate was 86.71% at the following optimum conditions: ozone flow rate of 8.4 mg·L-1, 0.6 g·L-1 CuOx/D851, wastewater influent flow rate of 4 mL·min-1, initial bisphenol A concentration of 10 mg·L-1, and initial pH 7. In modified chelating resin catalytic ozonation system, the modified chelating resin largely improved the BPA degradation rate through the synergistic effect of hydroxyl radical-direct ozone oxidation.
Key words:  catalytic ozonation  chelating resin  bisphenol A pollution  copper oxide