References
- AMIRTHARAJAH, A; CLEASBY, J. L. Predicting expansion of filters during backwash. Journal AWWA, v. 64, n. 1, p. 52-9, jan. 1972.
Expansion of the filter bed
Input data
Temperature
Effective size
Uniformity coefficient
Specific weigth
Porosity
Length (a)
Width (b)
Diameter (D)
Depth of the filter bed
Washing velocity
Output data
Expanded bed depth
Expansion
Description
Givem the temperature, the dimensions of the filter bed, the physics and granulometric characteristics of its media and the washing water velocity, calculates the percentual expansion of the media ant its expanded depth.
Filter bed