Rheological characteristics of the cationic polyelectrolyte flocculated wastewater sludge

Bing Hung Chen, Sue Jean Lee, D. J. Lee

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


The rheological characteristics of the wastewater sludge were investigated by using a Haake Rheostress RS 75 rheometer. The stress-sweep experiments and the small-amplitude-oscillatory-shearing (SAOS) tests were conducted. The stress-sweep measurements demonstrate that addition of polymer coagulants to sludge samples could significantly influence the corresponding complex shear modulus G*. Furthermore, the SAOS tests indicate that the sludge samples treated with polymer coagulants will form more rigid structures. The original sludge samples mostly show typical viscoelastic liquid-like behavior. However, the solid-like behaviors were always observed in the samples treated with polymers.

Original languageEnglish
Pages (from-to)4429-4435
Number of pages7
JournalWater Research
Issue number18
Publication statusPublished - 2005 Nov

All Science Journal Classification (ASJC) codes

  • Ecological Modelling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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