Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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The Role of pd in the Unified Theory on Solid-Liquid Separation: Especially on the Cake Thickness at Hindered Sedimentation, Cake Filtration and Expression

고액분리 통합이론에서 pd의 역할: 간섭침전, 케이크 여과, 압착에서 케이크 두께를 중심으로

  • Yim, Sung-Sam (Department of Environmental Engineering, Inha University) ;
  • Song, Yun-Min (Department of Environmental Engineering, Inha University)
  • 임성삼 (인하대학교 사회기반시스템공학부 환경공학전공) ;
  • 송연민 (인하대학교 사회기반시스템공학부 환경공학전공)
  • Received : 2011.08.06
  • Accepted : 2011.10.06
  • Published : 2012.04.01
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Abstract

To know the role of 'the solid compressive pressure to the first solid layer of a cake, $p_d$' in the 'unified theory on solid-liquid separation', we analyzed extremely compressible cake formed with floc for the following three operations with our new concepts. First, the role of $p_d$ was studied in calculating the sediment thickness of floc, and in calculating the cake thickness in cake filtration performed with floc sediment. Second, we calculated the expression procedure using $p_d$. Finally, the influence of $p_d$ on cake thickness in hindered sedimentation, and on the calculation of the procedure of hindered sedimentation $p_d$ was verified. Thus the possibility of application of 'unified theory on solid-liquid separation' and the importance of $p_d$ was verified. Through these processes, new theoretical definitions of the cake filtration, expression and hindered sedimentation was established.

새로 개발된 '고액분리 통합이론'의 핵심 개념인 '케이크 첫 입자층이 받는 압력 $p_d$'의 역할을 인식하기 위해, 고압축성 케이크에 대해 다음과 같은 세 가지 고액분리 분야를 새로운 개념으로 분석하였다. 첫째, 침전된 플럭의 케이크 여과에서 여과 대상이 되는 침전 플럭의 두께 계산에서 $p_d$의 역할과, 케이크의 형성 두께 계산에서의 $p_d$의 역할. 둘째, 압착 과정에서의 $p_d$의 역할, 그리고 마지막으로 간섭침전 결과 쌓이는 높이에 미치는 $p_d$의 역할과 간섭침전 과정에서의 $p_d$의 중요성을 보였다. 이로써 고액분리 통합이론의 적용 가능성과, 그에 있어 $p_d$의 중요성을 밝힐 수 있었다. 이 과정을 통하여 케이크 여과, 압착, 간섭침전의 이론적인 새로운 정의가 가능해졌다.

Keywords

Acknowledgement

Supported by : 인하대학교

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