Settling Characteristics of Activated Sludge at Low Temperature

A series of activated sludge settling tests were observed with particle concentration and temperature as the controlled variables. Based on the experimental data, an equation defining settling velocity in terms of concentration, fluid temperature, and organic loading was developed. Although empirica...

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Bibliographic Details
Main Author: Reed, Sherwood
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1970
Subjects:
Water Pollution and Control
*ARCTIC REGIONS
*SEWAGE
MATHEMATICAL ANALYSIS
CHEMICAL PRECIPITATION
*ACTIVATED SLUDGE PROCESS
*CLARIFICATION
*SEWAGE TREATMENT
SETTLING
Arctic
Online Access:http://www.dtic.mil/docs/citations/AD0717239
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0717239
Description
Summary:A series of activated sludge settling tests were observed with particle concentration and temperature as the controlled variables. Based on the experimental data, an equation defining settling velocity in terms of concentration, fluid temperature, and organic loading was developed. Although empirical in nature the equation provides a rational basis for the determination of temperature influence and should have special value for cold regions designs. It was possible to describe the results of other investigations with this equation.

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