Thermal conductivity of sludges

The time needed to naturally thaw sludge in a freezing bed depends on the thermal conductivity of the settled sludge layer deposited on the thawing sludge. The objective of this research is to measure the thermal conductivity of this layer. Six different sludges are tested, and it is found that ther...

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Bibliographic Details
Published in:Water research (Oxford) 1989, Vol.23 (2), p.241-245
Main Authors: Vesilind, P.Aarne, Martel, C.James
Format: Article
Language:English
Subjects:
Applied sciences
dewatering
Exact sciences and technology
freezing
Other industrial wastes. Sewage sludge
Pollution
sludge
Wastes
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Summary:The time needed to naturally thaw sludge in a freezing bed depends on the thermal conductivity of the settled sludge layer deposited on the thawing sludge. The objective of this research is to measure the thermal conductivity of this layer. Six different sludges are tested, and it is found that thermal conductivity decreases with increasing solids concentration. At normal solids concentrations, the thermal conductivity is found to be about 0.85 × 10 −3 cal cm −1 s °C.
ISSN:0043-1354
1879-2448
DOI:10.1016/0043-1354(89)90048-1