This paper reviews the relative efficiencies of slow sand filtration and rapid gravity filtration systems, with and without granular activated carbon (GAC) replacement of sand, for the removal of pesticides, dissolved organic compounds (DOC), organic colo
| Title | A comparative evaluation of the effectiveness of potable water filtration processes |
| Publication Type | Journal Article |
| Year of Publication | 1995 |
| Authors | Graham, MJD, Lambert, SD |
| Pagination | p. 38-51: 13 tab. |
| Date Published | 1995-01-01 |
| Keywords | activated carbon treatment, capital costs, coagulation/flocculation, colour removal, comparative analysis, literature reviews, organic compounds, pesticides, rapid filtration, slow sand filtration, water pollution control |
| Abstract | This paper reviews the relative efficiencies of slow sand filtration and rapid gravity filtration systems, with and without granular activated carbon (GAC) replacement of sand, for the removal of pesticides, dissolved organic compounds (DOC), organic colour and nutrients, as well as their abilities to deal with pollution incidents and their relative costs. In general, slow sand filtration systems were found to be poorer than coagulant-assisted rapid gravity filtration systems for the removal of DOC and organic colour, but more efficient for the removal of several commonly occurring pesticides. Slow sand filtration was also found to be the most effective process for the production of biologically stable finished waters and, for small to medium-sized plants, appeared to incur no greater capital costs the comparable rapid sand filtration plants. |
| Notes | 78 ref. |
| Custom 1 | 255.1, 255.2, 256 |
