Abstract
Clogging is a complex phenomenon dependent upon many variables. For the conditions studied it is essentially a surface‐sealing process. When turbid water contains a range of grain sizes, clogging is initiated by the deposition of a surface layer that is graded because of the gravitational segregation of heavier particles. Most of the clogging results from the straining of finer particles from the flowing water by the graded depositional layer. An equation was developed which predicts accumulated water quantity versus time relationships for several concentrations of a specific turbidity. Even coarse‐grained porous media clogged at turbid water concentrations as low as 50 ppm.
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