Reference : INFLUENCE OF SOLUBLE POLYSACCHARIDE ON THE ADHERENCE OF PARTICULATE SOILS
Scientific congresses and symposiums : Unpublished conference
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/98617
INFLUENCE OF SOLUBLE POLYSACCHARIDE ON THE ADHERENCE OF PARTICULATE SOILS
English
[en] INFLUENCE OF SOLUBLE POLYSACCHARIDE ON THE ADHERENCE OF PARTICULATE SOILS
Toure, Yetioman mailto [Université de Liège - ULg > Unité Analyse, Qualité et Risque > Qualité et Sécurité des Produits Agroalimentaires > Form. doct. sc. agro. & ingé. biol. >]
Rouxhet, G. Paul mailto [ > > ]
Dupont-Gillain, C. Christine mailto [ > > ]
Sindic, Marianne mailto [Université de Liège - ULg > Unité Analyse, Qualité et risque > Qualité et Sécurité des Produits Agroalimentaires > >]
Jun-2011
No
Yes
International
Heat Exchanger Fouling and Cleaning - 2011
June 5-10, 2011
Prof. Hans Müller-steinhagen, Dr. Reza Malayeri, Professor A. Paul Watkinson, Dr. Fernando Aguirre, Prof. X. Dong Chen, Prof. Derek Lister, Prof. Louis F. Melo, Dr. Ian Wilson
Crete Island
Greece
[en] Soluble polysaccharide ; adherence ; particulate soils
[en] The removal of particulate soils from solid surfaces is the key process of cleaning many industrial devices, such as heat exchangers and spray dryers (food and pharmaceutical sector), and may be influenced by the presence of solutes, in particular of macromolecules. The present study deals with the influence of soluble polysaccharide on the adherence of particulate fouling of open surfaces and on subsequent cleaning. Model surfaces differing by hydrophobicity (glass and polystyrene) were soiled with a suspension of quartz particles, taken as a model of hard hydrophilic soil. Dextran was chosen as a model of soluble polysaccharide. The surfaces were soiled with or without previous conditioning with the polysaccharide solution (80mg/l). The quartz particles suspension was prepared in three ways: (i) suspension in a polysaccharide solution (80mg/l), (ii) same as (i) and subsequent washing three times, (iii) suspension in water. The surfaces were soiled by spraying the suspension and dried for 30min before cleaning treatment with a water flow in a radial flow chamber. The aggregates observed after soiling differed considerably between glass and polystyrene, whether the surface and/or the quartz particles are conditioned with dextran. Conditioning polystyrene with dextran increased slightly the adherence of quartz particles, while the opposite was observed when conditioning glass with dextran, whatever the mode of quartz particles conditioning. The effect of conditioning quartz particles with dextran at the concentration used was not significant.
Université de Liège-Gembloux Agro-Bio Tech
Researchers ; Professionals ; Students ; Others
http://hdl.handle.net/2268/98617

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