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Description: Book cover
HEAT TREATMENT COMBINED WITH CATION ADDITION TO IMPROVE THE DEWATERABILITY OF WASTE ACTIVATED SLUDGE
Abstract
Heat treatment was combined with cation addition to increase the dewaterability of waste activated sludge. Soluble protein analysis showed that heat treatment resulted in cell disruption. Dilatometry showed that bound water increased as a result of heat treatment. A centrifugal dewatering test demonstrated that cation addition (Na+, K+, Ca2+, Mg2+, and Fe3+) led to increased dewaterability. There was no correlation between the bound water content of disrupted sludge and its dewaterability. The combination of heat treatment and cation addition produced no significant changes at any of the temperatures used in this study. It is possible that higher centrifugal forces are needed for centrifugation to be an accurate measure of dewaterability.
Heat treatment was combined with cation addition to increase the dewaterability of waste activated sludge. Soluble protein analysis showed that heat treatment resulted in cell disruption. Dilatometry showed that bound water increased as a result of heat treatment. A centrifugal dewatering test demonstrated that cation addition (Na+, K+, Ca2+, Mg2+, and Fe3+) led to increased dewaterability. There...
Author(s)
Matthew SkidmoreFrancis de los Reyes
SourceProceedings of the Water Environment Federation
SubjectSession 81: Biosolids
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2004
ISSN1938-6478
SICI1938-6478(20040101)2004:8L.48;1-
DOI10.2175/193864704784136847
Volume / Issue2004 / 8
Content sourceWEFTEC
First / last page(s)48 - 57
Copyright2004
Word count124

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