Reference : Influence of Back Mixing on the Convective Drying of Residual Sludges in a Fixed Bed
Scientific journals : Article
Engineering, computing & technology : Chemical engineering
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/5057
Influence of Back Mixing on the Convective Drying of Residual Sludges in a Fixed Bed
English
[fr] Influence du rétro-mélange sur le séchage convectif de boues d'épuration
Léonard, Angélique mailto [Université de Liège > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires - Département de chimie appliquée >]
Meneses, Eustedio [> > > >]
Le Trong, Emmanuel [> > > >]
Salmon, Thierry mailto [Université de Liège - ULg > Département de chimie appliquée > Département de chimie appliquée >]
Marchot, Pierre mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Systèmes polyphasiques >]
Toye, Dominique mailto [Université de Liège - ULg > Département de chimie appliquée > Génie de la réaction et des réacteurs chimiques >]
Crine, Michel mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires >]
10-Feb-2008
Water Research
42
10-11
2671-2677
Yes (verified by ORBi)
International
0043-1354
[en] The influence of a backmixing operation on the convective belt drying of two wastewater sludges was studied. The expansion of the sludge extrudates bed due to increasing additions of dry product was quantified by using X-ray tomography. This non-invasive technique was used to determine the bed porosity and the total exchange area available for heat and mass transfers, for increasing levels of backmixing. For a same drying flux, the expansion of the drying bed leads to higher drying rates, allowing a reduction of the total drying time. In this context, rheological properties of the sludges are key properties.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
http://hdl.handle.net/2268/5057
10.1016/j.watres.2008.01.020

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