Journal
WATER RESEARCH
Volume 47, Issue 15, Pages 5493-5510Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2013.07.001
Keywords
Municipal sludge; Rheological models; Yield stress; Viscosity; Thixotropy; Viscoelasticity; Physico-chemical properties
Funding
- RMIT Research and Innovation Office, Melbourne Water and South-East Water companies
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Sustainable sludge management is becoming a major issue for wastewater treatment plants due to increasing urban populations and tightening environmental regulations for conventional sludge disposal methods. To address this problem, a good understanding of sludge behaviour is vital to improve and optimize the current state of wastewater treatment operations. This paper provides a review of the recent experimental works in order for researchers to be able to develop a reliable characterization technique for measuring the important properties of sludge such as viscosity, yield stress, thixotropy, and visco-elasticity and to better understand the impact of solids concentrations, temperature, and water content on these properties. In this context, choosing the appropriate rheological model and rheometer is also important. (C) 2013 Elsevier Ltd. All rights reserved.
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