HYDROSOL DEPOSITION IN GRANULAR BEDS—AN EXPERIMENTAL STUDY

Abstract

Abstract Experiments were conducted to study the deposition of particles from suspensions flowing through packed beds. The experimental data obtained include both the initial and transient state particle collection. The initial collection efficiencies were compared with predictions based on existing theories. Agreement between experiments and predictions was generally good except for the case when significant repulsive force barrier exists between filter grains and particles. The transient state data obtained under the presence of unfavorable surface interactions show a steady decline in collection efficiency with time, which cannot be reconciled with any existing theories.