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Media type:
E-Article
Title:
Physical Conditioning of Activated Sludge Floc
Contributor:
Parker, Denny S.;
Kaufman, Warren J.;
Jenkins, David
Published:
Water Pollution Control Federation, 1971
Published in:
Journal (Water Pollution Control Federation), 43 (1971) 9, Seite 1817-1833
Language:
English
ISSN:
0043-1303
Origination:
Footnote:
Description:
Floc conditioning in most activated sludge plants is not optimum for secondary clarification because of excessive floc breakup rather than inadequate floc aggregation inaeration basins. Addition of a mildly stirred flocculation step between the aeration basin and clarifier should provide a better environment for aggregation and encourage incorporation of dispersed particles into the floc, resulting in a clearer effluent with only modest increase in treatment cost. While pilot studies are desirable for specific sludges, it should be possible to use empirical coefficients presented to estimate plant performance.