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Zhang Jiyi, Xu Chunmei, Li Jintao, Han Xue. Biomass adsorbents prepared from wheat straw by chemical modification with zinc chloride and its adsorption of phosphate[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 987-992.
Citation: Zhang Jiyi, Xu Chunmei, Li Jintao, Han Xue. Biomass adsorbents prepared from wheat straw by chemical modification with zinc chloride and its adsorption of phosphate[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 987-992.
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Biomass adsorbents prepared from wheat straw by chemical modification with zinc chloride and its adsorption of phosphate

  • 1.

    College of Petrochemical Engineering,Lanzhou University of Technology, Lanzhou 730050,China

  • Received Date: 06/11/2011
    Accepted Date: 04/07/2011
    Available Online: 18/03/2013
    Fund Project:
  • To make wheat straw recyclable and solve the eutrophication of water, wheat straw was modified into an biomass adsorbent. The best modified conditions by zinc and the effect of phosphate adsorbed onto modified wheat straw were systematically examined through batch experiments. The results indicate that the optimal modified conditions are as follows: zinc chloride mass concentration of 250 g/L, impregnation ratio of 2.2∶1, activation temperature of 600℃, and activation time of 45 min, under these conditions, the yield of the biomass adsorbents is 37.85%, the modified wheat straw adsorbs phosphate most effectively, and the removal rate of phosphate can reach to 99.33%.
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Biomass adsorbents prepared from wheat straw by chemical modification with zinc chloride and its adsorption of phosphate

  • Received Date: 06/11/2011
  • Accepted Date: 04/07/2011
  • Available Online: 18/03/2013
Fund Project:

Abstract: To make wheat straw recyclable and solve the eutrophication of water, wheat straw was modified into an biomass adsorbent. The best modified conditions by zinc and the effect of phosphate adsorbed onto modified wheat straw were systematically examined through batch experiments. The results indicate that the optimal modified conditions are as follows: zinc chloride mass concentration of 250 g/L, impregnation ratio of 2.2∶1, activation temperature of 600℃, and activation time of 45 min, under these conditions, the yield of the biomass adsorbents is 37.85%, the modified wheat straw adsorbs phosphate most effectively, and the removal rate of phosphate can reach to 99.33%.

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