In this work, objective was to evaluate the capacity of a Rietema kind of hydrocyclone, with 50 mm diameter, to retain suspended sand in irrigation water. The hydrocyclone was operated with pressure differentials that varied from 10 to 60 kPa and discharges between 1,159.90 and 2,603.60 L h-1. The sand concentration in suspension varied from 2.81 to 7.01 g L-1. The best results were obtained for the pressure differentials of 10 and 20 kPa, with cut diameter sizes of 50 mm showing granulometric efficiency of 70%.
cyclone; water quality; pre-filters
