화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.2, 553-558, February, 2016
DOI10.1007/s11814-015-0174-z  Export Citation
Adsorption properties of Friedel’s salt for the nitrate in the landfill
Jun Yao1, 2, Qingna Kong1, 3, Huayue Zhu1, 3, Dongsheng Shen4, †, and Zhen Zhang1, 3
  • 1College of Life Science, Taizhou University, Linhai 317000, China
  • 2Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China
  • 3, China
  • 4Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Gongshang University, Hangzhou 310018, China
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Adsorption characteristics of nitrate on Friedel’s salt under the landfill circumstance were investigated to explore the effect of Friedel’s salt on the migration of nitrate in the landfill. Friedel’s salt was synthesized by a coprecipitation method and characterized by XRD and FTIR spectroscopy. The kinetics and isotherm of the adsorption were studied. The effect of the variation of landfill circumstance on the adsorption was also discussed. The result showed that the adsorption capacity of Friedel’s salt for nitrate was 2.494mg g.1. The adsorption process was exothermic and could be well described by pseudo-second-order kinetics and Langmuir-Freundlich equation. Cl. could enhance the adsorption, while SO4 2., PO4 3. and organic matter could restrict the adsorption. The results suggested that the migration of nitrate in the landfill could be altered by Friedel’s salt, which was related to the variation of the landfill circumstance.
Keywords:Adsorption;Friedel’s Salt;Landfill;Migration;Nitrate
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