Raw surface water in developing countries often is unpotable due to fecal matter and sediments, especially during heavy rain and flood seasons. Water treatment facilities are expensive to construct and maintain, but in some\AB cases cannot be avoided.
| Title | Constructing and operating treatment plants |
| Publication Type | Conference Paper |
| Year of Publication | 1991 |
| Authors | Mesfin, S |
| Pagination | P. 139-142: 3 fig., 1 tab. |
| Date Published | 1991-01-01 |
| Keywords | construction, costs, design, ethiopia, horizontal roughing filtration, operation, sedimentation, slow sand filtration, turbidity removal, water treatment plants |
| Abstract | Raw surface water in developing countries often is unpotable due to fecal matter and sediments, especially during heavy rain and flood seasons. Water treatment facilities are expensive to construct and maintain, but in some\AB cases cannot be avoided. This report gives technical specifications for a water treatment plant consisting of sedimentation tanks to retain large suspended materials, a horizontal roughing filter for smaller sized suspended\AB materials, and a slow sand filter as the final stage to remove bacteriological pollution. The effluent from the final stage has been shown to satisfy all the chemical requirements of the World Health Organization. The\AB construction materials used for the pilot plant were masonry stone, plaster, chicken wire, metal plates, bricks, crushed stones and sand. The system is simple to operate; the operator has only to keep the inflow and outflow\AB levels at constant elevations. |
| Notes | 4 ref. |
| Custom 1 | 255.1 |
