Studies on the Development of Polymeric Flocculants of Chitosan System

Chitosan계 고분자 응집제 개발에 관한 연구

  • Jung, Byung-Ok (Dept. of Chemical Engineering, Seoul National Polytechnic Univ.) ;
  • Chung, Tak-Sang (Dept. of Chemical Engineering, Seoul National Polytechnic Univ.)
  • 정병옥 (서울산업대학교 화학공학과) ;
  • 정택상 (서울산업대학교 화학공학과)
  • Received : 1998.03.13
  • Accepted : 1998.04.22
  • Published : 1998.06.10

Abstract

By grafting acrylic acid, fumalic acid and maleic acid onto chitosan, graft copolymers, CsAa, CsFa and CsMa, respectively were prepared for potential uses as flocculants in waste water treatment. When 40 ppm of each grafted chitosan sample was added into the waste water, CsMa showed the best removal rate of COD and suspended solids(SS), followed by CsFa and CsAa and chitosan. The transmittance and removal rate of COD and SS were the highest at pH 5. All grafted chitosan exhibited better performance than chitosan itself, resulting from the amphiphilic property of grafted chitosan copolymer with carboxy groups.

Keywords

Acknowledgement

Supported by : 서울산업대학교

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