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Characterization, Treatment and Use of Sewage Sludge - Proceedings of the Second European Symposium held in Vienna, October 21-23, 1980 (Hardcover, 1981 ed.)
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Characterization, Treatment and Use of Sewage Sludge - Proceedings of the Second European Symposium held in Vienna, October 21-23, 1980 (Hardcover, 1981 ed.)
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The object of sludge characterization must be to get quantitative
mea- sures for sludge behaviour in treatment processes and when
disposed of. Thus the incentive for characterization could be one
of the following: 1. Because sludges exist in large quantities we
want to know the amounts and the expenees involved in their
treatment and disposal. 2. Because sludges are environmental
nuicances/hazards, energy sourc:-es, fertilizers or even food
sources; we want to know their potential. 3. Because the processes
change the sludge propert~es, we w~nt to know their "treatability".
4. 5ecause sludges have a history, we want to know how the
generation process affects the quantities and the properties of raw
sludge. Parallel to the characterization of the sludges runs
characterization of the sludge treatment-processes and the
environment in which we dispose of the sludge. In the following
discussion we will group parameters related to sludges into three
cathegories: 1. Sludge Quantity. Both total ~nd per capita sludge
production data from all connnon sewage and sludge treatment
methods are of "interest. 2. Treatability parameters. These are
characteristics of how a sludge behaves in a specific process.
Typically; dewaterability and digesta- bility. 3. Sludge quality
parameters. These are indicators of how the sludge could influence
the environment when disposed of. Sludge quality changes through
most sludge treatment processes (stabilization, ther- mal etc.) and
include concentrations of chemical compounds, pathogenes etc.
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