Abstract
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 language | English |
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Pages (from-to) | 4429-4435 |
Number of pages | 7 |
Journal | Water Research |
Volume | 39 |
Issue number | 18 |
DOIs | |
Publication status | Published - 2005 Nov |
All Science Journal Classification (ASJC) codes
- Water Science and Technology
- Ecological Modelling
- Pollution
- Waste Management and Disposal
- Environmental Engineering
- Civil and Structural Engineering