Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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A study on New Treatment Chemical for Leather Wastewater; III. COD Efficiency of Inorganic Coagulant

새로운 피혁폐수 처리제에 관한 연구; III. 무기 응집제의 COD 효율

  • Park, Jung-Hoi (School of Appli. Chem. Engineering, Kyungpook Nat. Univ.) ;
  • Lee, Chul-Jae (Dept. of Chem., Edu., Kyungpook Nat. Univ) ;
  • Choi, Hyun-Kuk (School of Appli. Chem. Engineering, Kyungpook Nat. Univ.) ;
  • Jung, Maeng-Joon (School of Appli. Chem. Engineering, Kyungpook Nat. Univ.)
  • 박정회 (경북대학교 이공대학 응용화학공학부) ;
  • 이철재 (경북대학교 사범대학 화학교육과) ;
  • 최현국 (경북대학교 이공대학 응용화학공학부) ;
  • 정맹준 (경북대학교 이공대학 응용화학공학부)
  • Received : 2008.03.20
  • Accepted : 2008.08.22
  • Published : 2008.08.31
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Abstract

Usually, flow mediation earth and settling pond etc. of processing plant to handle water or wastewater. Mediation is the wastewater that flowed past settling pond than material of heavy particles, water weight colloid particles that big solids are removed but are suspensibility material settlement exclusion impossible. So, we need flocculation and coagulation action to remove materials from this colloid state. Flocculation and coagulation by addition of chemical agents forms floc settle size. That is, shorten the sedimentation time and quality of processing water because promoting sedimentation doing to do fines or suspended solids and colloid can materials large size and also, flocculation to annex efficiency of filtration augment. Therefore, I executed this research to prove that COD efficiency for wastewater by using inorganic coagulant.

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