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Pd-Cu/石墨烯协同零价铁(Fe0)的催化反硝化实验

云玉攀,  梁钊,  朱振亚,  万敬敏,  忤丽洋,  温学友

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文章导航 > 环境工程  > 2021 >  39(1): 70-74,165
云玉攀, 梁钊, 朱振亚, 万敬敏, 忤丽洋, 温学友. Pd-Cu/石墨烯协同零价铁(Fe0)的催化反硝化实验[J]. 环境工程, 2021, 39(1): 70-74,165. doi: 10.13205/j.hjgc.202101010
引用本文: 云玉攀, 梁钊, 朱振亚, 万敬敏, 忤丽洋, 温学友. Pd-Cu/石墨烯协同零价铁(Fe0)的催化反硝化实验[J]. 环境工程, 2021, 39(1): 70-74,165. doi: 10.13205/j.hjgc.202101010
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YUN Yu-pan, LIANG Zhao, ZHU Zhen-ya, WAN Jing-min, WU Li-yang, WEN Xue-you. CATALYTIC DENITRIFICATION PERFORMANCE OF SYGERGISTIC EFFECT OF Pd-Cu/GRAPHENE AND ZERO-VALENT IRON (Fe0)[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(1): 70-74,165. doi: 10.13205/j.hjgc.202101010
Citation: YUN Yu-pan, LIANG Zhao, ZHU Zhen-ya, WAN Jing-min, WU Li-yang, WEN Xue-you. CATALYTIC DENITRIFICATION PERFORMANCE OF SYGERGISTIC EFFECT OF Pd-Cu/GRAPHENE AND ZERO-VALENT IRON (Fe0)[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(1): 70-74,165. doi: 10.13205/j.hjgc.202101010
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Pd-Cu/石墨烯协同零价铁(Fe0)的催化反硝化实验

doi: 10.13205/j.hjgc.202101010

  • 1. 河北地质大学 水资源与环境学院, 石家庄 050031;

  • 2. 河北地质大学 智慧环境产业技术研究院, 石家庄 050031;

  • 3. 河北省水资源可持续利用与产业结构优化协同创新中心, 石家庄 050031

基金项目: 

河北省自然科学基金（B2019403127）；河北省高等学校科学技术研究项目（QN2020403）；河北省重点研发计划自筹项目（18274232）。

详细信息
    作者简介:

    云玉攀(1985-),男,博士,讲师,主要研究方向为水污染控制工程。yundzdx@126.com

    通讯作者:

    温学友(1970-),男,博士,副教授,主要研究方向为污水处理技术、大气污染控制技术、土壤/地下水污染修复及治理技术、环境影响评价和环境规划等。wenxueyou@126.com

CATALYTIC DENITRIFICATION PERFORMANCE OF SYGERGISTIC EFFECT OF Pd-Cu/GRAPHENE AND ZERO-VALENT IRON (Fe0)

  • 1. School of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China;

  • 2. Smart Environment Industry Technology Research Institute, Hebei GEO University, Shijiazhuang 050031, China;

  • 3. Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Shijiazhuang 050031, China

    摘要
  • 摘要: 为解决城市污水处理厂二级出水中硝态氮含量较高的问题，对Pd-Cu/石墨烯协同零价铁（Fe0）的新型催化反硝化法处理水体中NO3--N进行了深入研究，重点对催化反硝化操作条件进行了优化。研究发现，新型催化反硝化法获得较好催化效果的最佳运行条件为：Fe0投加量为4 g/L，m（Pd）：m（Cu）为3：1，溶液pH为4.2，Pd-Cu/石墨烯投加量为4 g/L，反应时间为2 h，此时系统的NO3--N去除率及N2转化率分别为78%和74%。在催化反硝化反应中，Fe0主要以电子供体存在，其在一定的酸性条件下，可触发催化反应的发生。催化反应发生在催化剂的金属活性位（Pd和Cu）上。NO3--N在催化剂作用下，通过脱氧反应被逐步去除并转化为N2。此外，催化剂载体及催化反应中的传质效果也是影响催化效果的重要因素。
    Abstract: In order to solve the problem of high nitrate content in secondary effluent of municipal wastewater treatment plants, the sygergistic effect of Pd-Cu/graphene and zero-valent iron (Fe0) on nitrate removal was investigated. The research on condition optimization of catalytic denitrification was conducted. Results showed that good catalytic performance was obtained under the following conditions:Fe0 4 g/L, Pd:Cu 3:1, pH 4.2, Pd-Cu/graphene 4 g/L, and reaction time 2 h, with the 78% of nitrate removal rate and 74% of N2 conversion rate. In catalytic denitrification process, Fe0, as the electron donor, mainly contributed to triggering the catalytic reaction, which occurred in the activated sites (Pd and Cu). The nitrate could be removed and converted to N2 through deoxidization reaction under the effect of the catalyst. Additionally, the carrier and the mass transfer process were also the important factors that may greatly influence the catalytic performance.
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出版历程
  • 收稿日期:  2019-09-10
  • 网络出版日期:  2021-04-23

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