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Test Program for Filter Evaluation at Hanford
Author(s) -
Conley Walter R.,
Pitman Raymond W.
Publication year - 1960
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.1551-8833.1960.tb00485.x
Subject(s) - filtration (mathematics) , filter (signal processing) , hanford site , environmental science , waste management , environmental engineering , process engineering , pulp and paper industry , engineering , mathematics , statistics , radioactive waste , electrical engineering
A filter evaluation program, in which small experimental filters are utilized, has been conducted at Hanford, Washington, since 1950. The program became most useful when a 5‐gpm experimental plant was constructed and operated at Hanford in 1955. The test data presented have been confirmed in the production plants at Hanford. It is believed that the experimental results may be of use to water utility engineers and operators. Study conclusions indicate that there is not much need for filters with the two‐layer bed since few are in use in the average water treatment plant. The results obtained by Conley and Pitman are amazing and should be studied by the water industry, particularly in places where filter runs are short over long periods of time, or where the use of high‐rate filtration is being considered. If water of the highest quality can be produced at filtration rates of 6 gpm/sq ft, fewer filters would be required in new plants, and extension of existing filters would not be needed so early. One important consideration, however, is that the water must be conditioned properly for high‐rate filtration.