Recommendations
Sigma Mechanized inclined screen grid
Thin mechanized step screen
Downflow

Input data

Flow

Width (b)

Trashrack width (W)

Distance between trashracks (d)

Downflow level (y)

Inclination (º)

β - Kirschmer

Output data

Upflow level

Upflow velocity

Energy

Velocity between bars

Head loss

Upflow level at 50%

Upflow velocity at 50%

Velocity between bars at 50%

Upflow energy at 50%

Head loss at 50%

References

  • WEF, ASCE, EWRI (2010). Design of municipal wastewater treatment plants. Volume 2: liquid treatment processes. New York, McGraw Hill.