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- W2372980249 abstract "The effect of temperature( T),solid content( TS),and shear rate( γ) on rheological characteristics was investigated by using anaerobic digestion sludge of food waste from semi-continuous and sequencing batch reactors. The dynamic viscosity was measured by a rotational viscometer. The sludge temperature was controlled in the range of 20 ℃ to 70 ℃ during all measurements and the TS contents were 21. 41% ~ 29. 54% and 12. 09% ~22. 48% for semi-continuous and sequencing batch reactor respectively. The results showed that the fluidity of the sludge was enhanced under higher temperature conditions. Temperature variation could cause irreversible effects on sludge rheology. If measured at the same shear rate the dynamic viscosity of the sludge increased with increasing TS content. The viscosity curves revealed that the anaerobic digestion sludge was non-Newtonian fluid with shearthinning characteristics. The increasing and decreasing curves of shear stress-shear rate demonstrated that the anaerobic sludge was time-related fluid and the viscosity-time curves further indicated that the anaerobic digestion sludge was thixotropic fluid. A stirring system is essential when TS 12% and the shear rate should be controlled between 10. 4 s-1to 20. 9 s-1. The effect of temperature,TS and shear rate on rheology was enhanced with higher TS content. This work provides basic information for designing stirred system and heat exchange system of anaerobic digestion reactors." @default.
- W2372980249 created "2016-06-24" @default.
- W2372980249 creator A5090721680 @default.
- W2372980249 date "2014-01-01" @default.
- W2372980249 modified "2023-09-23" @default.
- W2372980249 title "Rheological characteristic analysis of dry anaerobic digestion sludge of food waste under mesophilic conditions" @default.
- W2372980249 hasPublicationYear "2014" @default.
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