Six layers of a synthetic fiber cover were fitted to three slow sand filters in an attempt to determine if the normal sand depth could be reduced without impairing the effectiveness of the filter. The water was pretreated with gravel filters.
| Title | Evaluation of fabric enhanced reduced depth slow sand filters : research scheme R4648 : [progress report] |
| Publication Type | Miscellaneous |
| Year of Publication | 1991 |
| Authors | Graham, MJD, Clarke, BA |
| Pagination | 25 p.: 17 fig., ill. |
| Date Published | 1991-01-01 |
| Publisher | University of Surrey, Department of Civil Engineering |
| Place Published | Guildford, UK |
| Keywords | bacteriological quality, bacteriophages, covering, efficiency, escherichia coli, pilot plants, plastics, pretreatment, slow sand filtration, turbidity removal |
| Abstract | Six layers of a synthetic fiber cover were fitted to three slow sand filters in an attempt to determine if the normal sand depth could be reduced without impairing the effectiveness of the filter. The water was pretreated with gravel filters. Sand depths were 500 mm (control), 300 mm and 200 mm. Two runs were performed, one of 12 days and one of 80 days. Microbiological treatment efficiency was determined for E.Coli and bacteriophage (Serratia Marcescens). Microbiological treatment and turbidity removal levels were similar for all three filters. Further testing is recommended. |
| Custom 1 | 255.1 |
