When San Diego's requirements for treated water reached the critical limit, changes in city water treatment plants were necessitated. Modifications included changes of filter media and filter controllers and replacement of rapid mixers and flocculators by high-energy mixers. Includes figure.
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Edition: Vol. 73 - No. 9 Published: 09/01/1981 Number of Pages: 2File Size: 1 file , 1.4 MB