Research Article
Oct 1979
Chemical Conditioning of Activated Sludge
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VIEW THE REPLYAuthors: John T. Novak, M.ASCE, and Bjorn-Erik HauganAuthor Affiliations
Publication: Journal of the Environmental Engineering Division
Volume 105, Issue 5
Abstract
Activated sludge flocs may be represented as matrices to which anionic particles are weakly adsorbed. A sludge becomes optimally conditioned when the unadsorbed anionic particles are coagulated through adsorption or charge neutralization. Because the anionic particles are readily desorbed, the required dosage of conditioning polymers is found to increase with mixing time and intensity. While sludges conditioned under intense mixing conditions require additional conditioning chemicals, they are found to be more resistant to deterioration or disruption.
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Published In
Journal of the Environmental Engineering Division
Volume 105 • Issue 5 • October 1979
Pages: 993 - 1008
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: Oct 1979
Published online: Feb 11, 2021
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John T. Novak, M.ASCE
Prof. of Civ. Engrg.; Univ. of Missouri-Columbia, Columbia, Mo., USA
Bjorn-Erik Haugan
Research Civ. Engr.; Norwegian Inst. for Water Research, Oslo, Norway, Norway
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