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Network strength of waste activated sludge using rheological tests

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

A rheogram of waste activated sludge is used to estimate the non-Newtonian behavior of original and flocculated flocs. The shearing energy, input by the rheometer, represents the plastic contribution of the floc network strength. This study estimated the binding strength of network flocs in waste activated sludge from rheological tests. Two sludge samples from a wastewater treatment plant were considered. The binding strength increased with polymer dose, indicating the structure's higher resistance to hydrodynamic shear. Although the Es value could not be used as a single index for comparing the ease of dewatering various batches of sludge, it can be used for online monitoring to flocculation status for sludge.
Original languageEnglish
Pages (from-to)375-388
JournalSeparation Science and Technology
Volume38
Issue number2
DOIs
Publication statusPublished - 2003
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 6 - Clean Water and Sanitation
    SDG 6 Clean Water and Sanitation

Research Keywords

  • Activated sludge
  • Flocculation
  • Network strength
  • Rheology

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