Clean Technology (청정기술)

The Korean Society of Clean Technology (한국청정기술학회)
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Preparation of Adsorbents Reutilizing the Leached Sludge of Red Mud

적니 침출슬러지를 재활용한 흡착제의 제조

  • Lee, Jae-Rok (Dept. of Chemical and Biochemical Engineering, The University of Suwon) ;
  • Hwang, In-Gook (Dept. of Chemical and Biochemical Engineering, The University of Suwon) ;
  • Bae, Jae-Heum (Dept. of Chemical and Biochemical Engineering, The University of Suwon)
  • 이재록 (수원대학교 화공생명공학과) ;
  • 황인국 (수원대학교 화공생명공학과) ;
  • 배재흠 (수원대학교 화공생명공학과)
  • Received : 2006.06.01
  • Accepted : 2006.08.04
  • Published : 2006.09.30
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Abstract

The adsorbent for removal of heavy metal ions is prepared reutilizing the leached sludge generated in process of making the red mud coagulant we have develope. The pellet-type adsorbent is made by heat-treating a mixture of 10g of the leached sludge, 1g of kaolin, and 2 g of sodium silicate solution at $600^{\circ}C$ for 2 hours. In experiments of batch adsorption, the adsorbent shows good performance in adsorption of $Pb^{2+}$ ion.

본 연구진이 개발한 적니응집제를 제조하는 과정에서 발생하는 침출슬러지를 재활용하여 중금속이온 제거용 흡착제를 제조하였다. 침출슬러지 10 g에 kaolin 1 g, sodium silicate solution 2 g을 혼합하여 펠�� 형태로 성형한 후 $600^{\circ}C$에서 2시간 동안 열처리하여 흡착제를 제조하였다. 회분식 흡착실험을 한 결과, 본 연구에서 제조된 흡착제는 $Pb^{2+}$ 이온에 대하여 우수한 흡착성능을 가졌다.

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