CATALYTIC DENITRIFICATION PERFORMANCE OF SYGERGISTIC EFFECT OF Pd-Cu/GRAPHENE AND ZERO-VALENT IRON (Fe<sup>0</sup>)

YUN Yu-pan; LIANG Zhao; ZHU Zhen-ya; WAN Jing-min; WU Li-yang; WEN Xue-you

doi:10.13205/j.hjgc.202101010

Volume 39 Issue 1

Apr. 2021

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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

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

doi: 10.13205/j.hjgc.202101010

YUN Yu-pan^1,2,3,
LIANG Zhao^1,2,3,
ZHU Zhen-ya^1,2,3,
WAN Jing-min^1,2,3,
WU Li-yang^1,2,3,
WEN Xue-you^{1,2,3
,
,}

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

Received Date: 2019-09-10
Available Online: 2021-04-23

Abstract

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.
- wastewater treatment,
- nitrate removal,
- catalytic denitrification

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References(21)

References

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