Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Colour Removal from Aqueous Solutions by Flotation Process

부상공정에 의한 수용액으로부터 색 제거

  • Roh, Sung-Hee (Department of Chemical Engineering, Chosun University) ;
  • Yun, Young-Jae (Kyungwon Life Science Research Institute) ;
  • Kim, Jin-Hwan (Department of Chemical Engineering, Chonnam National University) ;
  • Kim, Sun-Il (Department of Chemical Engineering, Chosun University)
  • Received : 1999.03.13
  • Accepted : 1999.05.27
  • Published : 1999.06.10
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Abstract

The removal of colours from aqueous solution and/or dispersions has been studied by dispersed-air flotation, in a semi-batch column. Two colours were used for the experiments: Basic Yellow 28(basic) and Direct Orange 31(basic). All two effectively removed by flotation within 8 min. Sodium dodecyl sulfate, sodium oleate and amines were found to be effective as collectors in the removal of colour, which was found to be related to the pH of the solution and the amount of collector added to it, with high collector dosages causing the process to become pH-independent.

Column에 공기를 분사시켜 수용액으로부터 색을 제거하기 위한 연구를 수행하였다. 착색 용액을 제조하기 위해 Basic Yellow 28 및 Direct Orange 31을 사용하였으며, 모든 색은 8분 이내에 제거되었다. Sodium dodecyl sulfate, oleic acid sodium salt 및 amines와 같은 collector는 색 제거에 효과적이었다. 색 제거는 collector의 첨가량과 수용액 pH의 영향을 받는다고 할 수 있으나, 소량의 collector를 첨가하였을 경우에는 pH에 의존하였으나, 많은 양을 첨가하였을 경우에는 pH에 의존하지 않았음을 알 수 있었다.

Keywords

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