Determination of the optimal dose of polyelectrolyte sludge conditioner considering particle sedimentation effects

Chih Chao Wu*, D. J. Lee, Ch-Hpin Huang

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The specific resistance to filtration (SRF) of sludge was determined using both a leaf filter and a Buncher funnel. The filterability of a kaolin suspension and an alum sludge were characterized using SRF data and capillary suction time (CST) measurements. Filter orientation during the leaf filter test and stirring during the Buncher funnel test affected the SRF values, and the optimal dosage of polyelectrolyte conditioner (defined as the dosage that yields the minimum resistance to filtration) varied depending on the type of test used. Therefore, the optimal dose of polyelectrolyte was an operationally defined value that depended on the geometry of the filter chamber and fluid/particle interactions, such as sedimentation.

Original languageEnglish
Pages (from-to)245-249
Number of pages5
JournalAdvances in Environmental Research
Volume4
Issue number3
DOIs
StatePublished - 1 Jan 2000

Keywords

  • Capillary suction time
  • De-waterability
  • Optimal dose
  • Particle sedimentation
  • Sludge conditioning
  • Specific resistance to filtration

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