The Use of Local Sand as a Filter Media

Abstract

This experiment was carried out in order to determine the possibility for the use of Local sand as a filter media, the graded sand were obtained using British Standard sieves  No. 25, 36, 52, 72, 100 and 200 whose are having sizes of 0.6 mm, 0.42 mm, 0.03 mm, 0.212 mm and 0.075 mm respectively, the effective size of the sand and the uniformity coefficient was found to be 0.22 mm and 1.93 respectively. Analysis of both raw and filter water was carried out through turbidity test, pH test and coli form count in order to present the physical, chemical and biological characteristics of water, after passing the raw water through the filter media. The sand filter media obtained using a set of British Standard sieves filtered water about 90% removal of coli form, 75% removal of turbidity and insignificant change in pH. Finally, disinfection process as a measure of safety should be employed.