Chemical reduction of nitrate using nanoscale bimetallic iron/copper particles

• Autorzy: Guo J. , Yu M. , Sun Z. , Li P. , Yang T. , Liu J. , Zhang L.
• Języki publikacji: EN

Abstrakty

EN

Nanoscale zero-valent iron (NZVI) as an effective material has been applied to reduce nitrate. Yet NZVI has defects of aggregation and oxidation. To overcome these disadvantages, nanoscale bimetallic iron/copper particles were introduced to reduce nitrate in this work. In this paper, nanoscale bimetallic Fe/Cu particles were prepared by the liquid phase chemical reduction method; the particles were characterized by scanning electron microscopy (SEM) and x-ray diffraction (XRD). The effect of prepared particles was evaluated by reducing synthetic nitrate wastewater, and batch experiments were conducted to investigate the effect of initial nitrate concentration and various Cu loading on nitrate reduction by nanoscale bimetallic Fe/Cu particles. The results indicated that nitrate could be completely removed in 20 min reaction by nanoscale bimetallic Fe/Cu particles when Cu loading was 5% and initial nitrate concentration was 80 mg/L. As a result, the nitrate in wastewater was converted into ammonium and nitrogen gas, with nitrite as an intermediate by-product.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2018
• Tom: 27
• Numer: 5
• Opis fizyczny: p.2023-2028,fig.,ref.

Twórcy

autor

Guo J.

• School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas of Education Ministry, Chang’an University, Xi’an, China

autor

Yu M.

• School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas of Education Ministry, Chang’an University, Xi’an, China

autor

Sun Z.

• School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas of Education Ministry, Chang’an University, Xi’an, China

autor

Li P.

• School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas of Education Ministry, Chang’an University, Xi’an, China

autor

Yang T.

• School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas of Education Ministry, Chang’an University, Xi’an, China

autor

Liu J.

• School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas of Education Ministry, Chang’an University, Xi’an, China

autor

Zhang L.

• School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas of Education Ministry, Chang’an University, Xi’an, China

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Identyfikatory

DOI

10.15244/pjoes/78439