工业水处理 ›› 2021, Vol. 41 ›› Issue (5): 58-61. doi: 10.11894/iwt.2020-0816

• 试验研究 • 上一篇    下一篇

生物炭负载纳米Fe3O4强化活性红2厌氧降解

王福振1(),万红友1,赵子升1,*(),张广毅2,窦明1   

  1. 1. 郑州大学生态与环境学院, 河南郑州 450001
    2. 郑州大学水利科学与工程学院, 河南郑州 450001
  • 收稿日期:2021-03-10 出版日期:2021-05-20 发布日期:2021-05-26
  • 通讯作者: 赵子升 E-mail:1161294897@qq.com;zszhao@zzu.edu.cn
  • 作者简介:王福振(1994-), 硕士。E-mail: 1161294897@qq.com
  • 基金资助:
    国家自然科学基金项目(21806145);中国博士后科学基金(2019M662537)

Biochar loaded with Nano-Fe3O4 enhances the anaerobic degradation of reactive red 2

Fuzhen Wang1(),Hongyou Wan1,Zisheng Zhao1,*(),Guangyi Zhang2,Ming Dou1   

  1. 1. College of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China
    2. School of Water Conservancy Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
  • Received:2021-03-10 Online:2021-05-20 Published:2021-05-26
  • Contact: Zisheng Zhao E-mail:1161294897@qq.com;zszhao@zzu.edu.cn

摘要:

采用化学共沉淀法制备了生物炭负载纳米Fe3O4(Fe3O4@WB)材料,用于提高厌氧消化过程中电子传递效率进而加速活性红2(RR2)的降解。采用XRD、FTIR等检测方法证实了纳米Fe3O4已成功负载于生物炭。厌氧降解结果表明,Fe3O4@WB显著提高了对RR2废水的厌氧消化性能,与空白组相比,COD去除率、CH4产量和RR2的降解率分别提高了14.42%、42.64%和26.81%。同时,电子传递体系(ETS)活性、辅酶F420含量及污泥电导率的提高进一步证明了系统的电子传递得到增强。

关键词: 厌氧消化, 纳米Fe3O4, 生物炭, 活性红2

Abstract:

Biochar-loaded nano-Fe3O4(Fe3O4@WB) has been prepared by the chemical co-precipitation method to improve electron transfer efficiency during reactive red 2(RR2) anaerobic digestion. XRD, FTIR confirmed that the nano-Fe3O4 has been loaded on biochar successfully. The results of anaerobic digestion of RR2 indicated that Fe3O4@WB improved the anaerobic digestion obviously. Compared with the control reactor, the COD removal efficiency, methane production and degradation rate of RR2 were increased by 14.42%, 42.64% and 26.81%, respectively. Moreover, the increase of electron transfer system(ETS) active, coenzyme F420 concentration and sludge conductivity confirmed the improvement of electron transfer efficiency.

Key words: anaerobic digestion, nano-iron oxide, biochar, reactive red 2

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