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Kaolin Separation Characteristics of the Disc Filters

디스크 필터의 카올린 분리특성

  • Park, Hye Jung (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology) ;
  • Kim, Dae Chun (Graduate School of Energy and Environment, Seoul National University of Science and Technology) ;
  • Kim, Hyung Sung (Elyzer) ;
  • Chung, Kun Yong (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology)
  • 박혜정 (서울과학기술대학교, 화공생명공학과) ;
  • 김대천 (서울과학기술대학교, 에너지환경대학원) ;
  • 김형성 ((주)엘라이저) ;
  • 정건용 (서울과학기술대학교, 화공생명공학과)
  • Received : 2014.08.12
  • Accepted : 2014.10.21
  • Published : 2014.10.31

Abstract

The permeation experiments were carried out to examine the separation characteristics of the modules which were piled up the disc-ring shape patterned membranes in this study. First of all, permeability of the pure water was measured for the self-made 5 shape disc filters, and varied from 0.25 to $2.24L/m^2{\cdot}hr{\cdot}bar$. The module showed the maximum pure water permeability was the maximum permeation flux, and the module showed the minimum pure water permeability was the minimum permeation flux for 0.1 wt% kaolin solution. However, all of the modules were not proportioned to the pure water permeability. Also, the backwashing was performed periodically for the module 1 in order to operate with 0.1 wt% kaolin solution for a long time. The most efficient operating condition was the 8 minute permeation and 2 minute backwashing cycle.

본 연구에서는 디스크 링 형태에 패터닝된 박막을 적층시킨 모듈의 분리특성을 규명하고자 투과실험을 수행하였다. 먼저, 본 연구에서 자체 제작한 5가지 형태의 디스크 필터의 순수 투과도를 측정하였으며 그 값은 0.25 내지 $2.24L/m^2{\cdot}hr{\cdot}bar$이었다. 0.1 wt% 카올린 수용액을 투과시키면 순수 투과율이 가장 높은 모듈의 투과유속이 가장 높았고, 순수 투과율이 가장 낮았던 모듈의 카올린 투과유속이 가장 낮게 나타났다. 그러나 모든 모듈의 카올린 투과유속이 순수 투과율에 비례하지는 않았다. 또한 0.1 wt% 수용액으로 장시간 운전하기 위하여 디스크 필터 모듈 1에 주기적으로 역세척을 실시하였으며 가장 효율적인 운전조건은 투과시간 8분, 역세척 2분 주기임을 확인하였다.

Keywords

References

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