[1]马翠,刘亚琦,张寒旭,等.锆柱撑膨润土负载纳米Fe3O4多相类芬顿处理老龄垃圾渗滤液[J].华侨大学学报(自然科学版),2018,39(6):844-850.[doi:10.11830/ISSN.1000-5013.201805044]
　MA Cui,LIU Yaqi,ZHANG Hanxu,et al.Fenton-Like Process on Treating Stabilized Old Landfill Leachate by Nano-Fe3O4 Decorated Zr-Pillared Bentonite as Catalyst[J].Journal of Huaqiao University(Natural Science),2018,39(6):844-850.[doi:10.11830/ISSN.1000-5013.201805044]
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锆柱撑膨润土负载纳米Fe3O4多相类芬顿处理老龄垃圾渗滤液()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第39卷
期数:
2018年第6期
页码:
844-850
栏目:
出版日期:
2018-11-20

文章信息/Info

Title:
Fenton-Like Process on Treating Stabilized Old Landfill Leachate by Nano-Fe3O4 Decorated Zr-Pillared Bentonite as Catalyst
文章编号:
1000-5013(2018)06-0844-07
作者:
马翠;  刘亚琦;  张寒旭;  袁鹏飞;  何争光
郑州大学 水利与环境学院, 河南 郑州 450001
Author(s):
MA Cui;  LIU Yaqi;  ZHANG Hanxu;  YUAN Pengfei;  HE Zhengguang
School of Water Resources and Environment, Zhengzhou University, Zhengzhou 450001, China
关键词:
Fe3O4/Zr-B;  老龄垃圾渗滤液;  非均相催化剂;  类芬顿;  共沉淀法
Keywords:
Fe3O4/Zr-B;  old landfill leachate;  heterogeneous catalyst;  Fenton-like;  coprecipitation
分类号:
X703
DOI:
10.11830/ISSN.1000-5013.201805044
文献标志码:
A
摘要:
采用共沉淀法制备锆柱撑膨润土负载纳米Fe3O4(Fe3O4/Zr-B)磁性催化剂,并将其应用于多相类芬顿反应处理老龄垃圾渗滤液.研究结果表明:当催化剂质量浓度为1.0 mg·L-1,初始pH值为2,过氧化氢浓度为0.1 mmol·L-1时,化学需氧量(COD)去除率提高到68%,5日生化需氧量(BOD5)与化学需氧量(COD)的比值达到0.27.由气相色谱-质谱(GC-MS)分析可知,催化反应对杂环化合物和醚化合物均具有良好的去除效果;同时,酚类化合物的比例从50.00%下降到19.68%,有效地降低出水的芳香性化程度.由三维荧光光谱(3D-EEM)分析可知,荧光强度显著下降,腐殖酸类和富里酸类物质在催化降解过程中得到有效去除.
Abstract:
A novel magnetic catalyst composed of nano-Fe3O4 decorated Zr pillared bentonite(Fe3O4/Zr-B)was successfully prepared by coprecipitation and then investigated in the Fenton-like process treating the stabilized landfill leachate. The research suggests that the removal efficiency of chemical oxygen demand(COD)increased to 68% and BOD5/COD was 0.27 with the catalyst dosage of 1.0 mg·L-1, initial pH value of 2 and peroxide concentration of 0.1 mg·L-1. According to gas chromatography-mass spectrometer(GC-MS), Fenton-like reaction with Fe3O4/Zr-Bentonite had an excellent removal performance for almost all the heterocyclic compounds and the ether compounds. Meanwhile, the proration of the phenolic compounds decreased greatly from 50.00% to 19.68%, illustrating lowering the aromaticity efficiently. The fluorescence spectra of three dimensional-excitation emission matrix fluorescence spectroscopy(3D-EEM)indicated that the fluorescence intensity decreased dramatically and the UV humic-like and fulvic-like substances were removed effectively during the catalytic degradation.

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备注/Memo

备注/Memo:
收稿日期: 2018-05-24
通信作者: 何争光(1963-),教授,博士,主要从事水污染控制理论与技术,水处理高级氧化技术,以及新技术、新工艺和新材料的开发的研究.E-mail:hezhengguang163@163.com.
基金项目: 国家十三五水专项(2017ZX07602-001-002)
更新日期/Last Update: 2018-11-20