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Some Theoretical and Conceptual Views of Filtration
Author(s) -
Amirtharajah Appiah
Publication year - 1988
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1988.tb03147.x
Subject(s) - filtration (mathematics) , particle (ecology) , quality (philosophy) , statistical physics , mathematics , physics , epistemology , statistics , geology , philosophy , oceanography
This article relates the fundamental concepts of granular media filtration to the major factors influencing the overall quality of filtered water. In present‐day theory, the particle removal mechanisms of transport, attachment, and detachment are described in two different modeling approaches: (1) phenomenological theories, and (2) trajectory theories. These theories are coupled with empirical evidence to stress the importance of chemical destabilization, initial degradation and filter ripening, minimization of rate changes, and the use of polymers for producing high quality water.