Research Article
Feb 1967
Prediction of Diatomite Filter Cake Resistance
Authors: James H. Dillingham, AM.ASCE, John L. Cleasby, M.ASCE, and E. Robert Baumann, F.ASCEAuthor Affiliations
Publication: Journal of the Sanitary Engineering Division
Volume 93, Issue 1
Abstract
Improved diatomite filtration equations for flat and cylindrical septa were recently developed and can be used to predict filter performance. However, the use hinges on knowledge of empirical filter cake resistance indices. Over 200 actual pilot and plant-scale filter runs have been analyzed to test the validity of the equations and to develop typical prediction equations for filter cake resistance. The results indicate that the filtration equations give excellent results in describing the head loss-time relationship during a filter run with either flat or cylindrical septa. A prediction equation for filter cake resistance index is presented. It is adequate to predict the filter cake resistance for various raw waters. For most waters, the index can be correlated to the ratio CS/CD (suspended solids concentration over body feed concentration). For some waters, however, the correlation is improved If CS and CD are treated as Independent variables. The filtration equations and the filter cake resistance prediction equations have been used to optimize filtration plant design.
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Published In
Journal of the Sanitary Engineering Division
Volume 93 • Issue 1 • February 1967
Pages: 57 - 78
Copyright
© 1967 American Society of Civil Engineers.
History
Published in print: Feb 1967
Published online: Feb 12, 2021
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Authors
Affiliations
James H. Dillingham, AM.ASCE
Computer Applications Engr., Metcalf and Eddy Engrs., Boston, Mass.; formerly, United States Pub. Health Service Fellow, Iowa State Univ. of Science and Tech., Ames, Iowa
John L. Cleasby, M.ASCE
Prof. of Civ. Engrg., Iowa State Univ. of Science and Tech., Ames, Iowa
E. Robert Baumann, F.ASCE
Prof. of Civ. Engrg., Iowa State Univ. of Science and Tech., Ames, Iowa
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.