Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Prediction of Sludge-Water Interface Height Change in Batch Column

Batch Column에서의 슬러지계면층 높이변화 예측

  • 박석균 (광운대학교 환경공학과) ;
  • 강선홍 (광운대학교 환경공학과)
  • Received : 2006.01.11
  • Accepted : 2006.02.08
  • Published : 2006.02.15
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Abstract

While sludge is settling in batch column, sludge concentration becomes high. Because the characteristic of sludge settling changes in function of time due to the sludge concentration change, the sludge settling velocity changes too. Also, because the sludge settling characteristic is influenced by a physical characteristic of sludge and a column height etc, it is difficult to exactly measure the sludge settling characteristic. Although the sludge volume indexes, SVI, SSVI and $SSVI_{3.5}$, are used to predict sludge settling characteristic, these indexes are not reliable values. Because the previously established models for sludge settling velocity predict the sludge settling velocity only, it is difficult to predict sluge-water interface height by using those models. The purpose of this experiment is to establish the empirical model which predicts the sludge interface height change with respect to the sludge physical characteristic and the settling condition.

Keywords

References

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