The performance of pumice as a filter bed material under …
Some experiments in which,pumice was used as a filter bed material were carried out in order to show the effect of flow rate on head loss and suspended solids removal rate. Applied flow rates, for 750 mm of bed depth and 0.5-1.0 mm sieve ranged pumice were 7.64, 15.28 & 22.91 m3/m2.h, respectively.