The filtration of public water-supplies / Third edition, revised and enlarged.

by Allen Hazen

EFFECT OF MUD UPON SAND FILTERS.

There are two aspects of the effect of mud upon the operation of sand filters which require particular consideration. The first relates to the rapidity of clogging, and consequently the frequency of scraping and the cost of operation; while the second relates to the ability of the filters to yield well-clarified effluents.