Mechanical and Thermal Dewatering of Residual Sludge

Topics:
Chemical
Tags:
Experiment,
Reed Elsevier Inc.
Source:
Reed Elsevier

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Overview: The management of residual sludge is an important subject. New environmental laws require the elimination of this waste by only two ways: incineration and agricultural use. In order to reach this goal, mechanical dewatering was used as a first step due to its low energy cost. This work studies the first step: mechanical dewatering. Some experiments were carried out on a laboratory filtration-compression cell and the use of the Ruth relationship approach was tested in order to characterize slurry in filtration. It also studies the second step: thermal dewatering. From laboratory convective drying experiments, a macroscopic approach in terms of kinetics curve and drying potential was developed.

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Format: PDF | Size: 234KB | Date: Feb 2004 | Pages: 5

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