Journal of Changjiang River Scientific Research Institute ›› 2017, Vol. 34 ›› Issue (3): 14-19.DOI: 10.11988/ckyyb.20151031

• WATER RESOURCES AND ENVIRONMENT • Previous Articles     Next Articles

Progress in the Research of Factors Affecting the Adsorption of Phosphorus by Mineral Clay and Iron Zirconium Compounds

FENG Xue1, ZHANG Zheng2, WANG Qian-cheng3, HOU Gui-bao1   

  1. 1.School of Environmental Science and Engineering,Taiyuan University of Technology,Taiyuan 030000,China;
    2.Administration Office of Rongcheng-Wuhai Highway in Hebei Province, Baoding 072550, China;
    3.College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
  • Received:2015-12-07 Published:2017-03-01 Online:2017-03-01

Abstract: Removing phosphorus from water through adsorption is highly efficient with low energy consumption. In this article, the characteristics of adsorbents and the adsorption mechanisms of metal oxides, clay mineral, and activated carbon are introduced. The effects of reaction temperature, reaction time, pH value, and coexisting ions on the adsorption process of mineral clay and iron zirconium compounds are expounded: reaction temperature mainly affects the molecular heat movement, which further affects the adsorption effect; a certain reaction time is always needed to reach the optimum effect; pH value mainly has an influence on ion concentration, ion type and ion reaction; coexisting ions could improve the Coulomb force and the competitiveness of phosphate’s active site. Moreover, the effects of adsorbent amount, phosphorus’ initial concentration, electrolyte and adsorbent’s particle size on the phosphorus adsorption are also described. Modified materials and composite materials are research focuses in the future.

Key words: mineral clay, iron oxides, zirconium iron compounds, adsorption, phosphate

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