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| Naji, M. |
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| Ertürk, Emre |
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| Azevedo, Nuno Monteiro |
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Gapes, Daniel
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Publications (4/4 displayed)
- 2019Rheological behavior of high cell density Pseudomonas putida LS46 cultures during production of medium chain length Polyhydroxyalkanoate (PHA) Polymerscitations
- 2017Rheological measurements as a tool for monitoring the performance of high pressure and high temperature treatment of sewage sludgecitations
- 2013Rheology of a primary and secondary sewage sludge mixture: Dependency on temperature and solid concentrationcitations
- 2009Physico-chemical properties of polyhydroxyalkanoate produced by mixed-culture nitrogen-fixing bacteria
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article
Rheology of a primary and secondary sewage sludge mixture: Dependency on temperature and solid concentration
Abstract
The main objective of this study was to investigate the rheology of mixed primary and secondary sludge and its dependency on solid content and temperature. Results of this study showed that the temperature and solid concentration are critical parameters affecting the mixed sludge rheology. It was found that the yield stress increases with an increase in the sludge solid content and decreases with increasing temperature. The rheological behaviour of sludges was modelled using the Herschel-Bulkley model. The results of the model showed a good agreement with experimental data. Depending on the total solid content,the average error varied between 3.25 to 6.22%.