Direction: A city is going to install the rapid sand filter after the sedimentation tanks. Use the following data.
Design loading rate to the filter 200 m³/m²d
Design flow rate 0.5 m³/s
Surface area per filter box 50m²
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The surface area required for the rapid sand after will be
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- 210 m²
- 215 m²
- 216 m²
- 218 m²
Correct Option: C
| Surface area = | ||
| Loading rate |
| = | = 216 m² | |
| 24 × 60 × 60 |
