Thermal Treatment of Waste Activated Sludge Using Liquid Boiling
Publication: Journal of Environmental Engineering
Volume 128, Issue 11
Abstract
In this work we investigated the use of a short time, low superheat boiling process to treat biological sludge. The treated sludge would exhibit a deteriorated filterability, and a marked increase in soluble organics content. A large portion of extracellular polymers was released from the solid phase by boiling. The microbial density levels of the total coliform bacteria and the heterotrophic bacteria were reduced after treatment. Dilution in sludge concentration could allow more organic compounds to be hydrolyzed and a greater fraction of microbes to be disinfected when compared with the undiluted samples.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 128 • Issue 11 • November 2002
Pages: 1100 - 1103
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Nov 16, 1999
Accepted: Jan 29, 2002
Published online: Oct 15, 2002
Published in print: Nov 2002
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