Adsorption Properties of Boron Branched-Sacchnride Polyallylamine Resin Column

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  • KAIDA Yasuhiko
    National Institute of Advanced Industrial Science and Technology, Kyushu
  • INUKAI Yoshinari
    National Institute of Advanced Industrial Science and Technology, Kyushu
  • YASUDA Seiji
    National Institute of Advanced Industrial Science and Technology, Kyushu
  • SANO Mitsuru
    Department of Industrial Chemistry, Kyushu Sangyo University
  • MUKAE Katsuya
    Department of Industrial Chemistry, Kyushu Sangyo University
  • SAKAI Masashi
    Department of Industrial Chemistry, Kyushu Sangyo University
  • TSURU Toshiaki
    Department of Industrial Chemistry, Kyushu Sangyo University

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  • 糖導入型ポリアリルアミンによるホウ素のカラム吸着特性
  • トウ ドウニュウガタ ポリアリルアミン ニ ヨル ホウソ ノ カラム キュウチャク トクセイ

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Abstract

The dynamic characteristics of boron adsorption on saccharide-type polyallylamine resin synthesized from saccharide and polyallylamine (PAA) resin have been investigated by the column method. The column used for adsorption studies was 100mm long and 5.0mm in diameter. The saccharide-type PAA resins used as boron-adsorbent were three hexose-type PAA resins, four pentose-type PAA resins, two disaccharide-type PAA resins, and one rhamnose-type PAA resin. The breakthrough point was affected by changing the space velocity of the feed solution in the range between 5.0 and 30h-1, and the optimum column performance was found at 5.0h-1. The order of the adsorbed amount of boron on PAA resin modified by D(+)-mannose chemically corresponds to that of the substituted degree of D(+)-mannose on PAA resin. When a model wastewater containing 2.0mmol·l-1 boron was passed through the saccharide-type PAA resin column at a space velocity of 5.0h-1, the adsorbed boron amounts of 0.67mmol·ml-1-resin, 0.61mmol·ml-1-resin, 0.56mmol·ml-1-resin, 0.54mmol·ml-1-resin, 0.52mmol·ml-1-resin and 0.45mmol·ml-1-resin were obtained for D(-)-arabinose-type, D(+)-galactose-type, D(+)-mannose-type, D(+)-glucose-type, D(-)-ribose-type and L(+)-rhamnose-type PAA resins, respectively. When a feed real wastewater containing 24.6ppm boron was pumped into the D(-)-arabinose-type PAA resin column, the volume of effluent containing less than 0.05mmol·l-1 boron was about 288 times as large as the bed volume of the D(-)-arabinose-type PAA resin column, which was about 3.1 times higher than that of the column of Amberlite IRA-743.

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