This research study focused on enhancing slow sand filter (SSF) performance and, in particular,organic precursor removals using gravel roughing filters (GRF) with the addition of ozone or acoagulant. A series of pilot SSF and GRF columns were assembled at a highly colored watersource in selected configurations to compare performance. Overall removal of organic precursormaterial and filter run times for the selected pretreatment options were evaluated and compared.In addition, for comparison purposes, the performance of a slow sand filter with an embeddedlayer of granular activated carbon (SSF with GAC) was also evaluated. Includes 3 references, tables, figures.
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Edition: Vol. - No. Published: 06/17/2005 Number of Pages: 19File Size: 1 file , 440 KB