Shallow Spouted Beds for Drying of Sludge from the Paper Industry

With the aim of determining the applicability of shallow spouted beds to dry moist sludge wastes from paper industry, an experimental study, with different geometric factors and at different experimental conditions at gas inlet temperatures from room temperature up to temperature of 140 oC, has been carried out. The stable experimental conditions have been determined and the experimental results of minimum spouting velocity have been fitted to the equation proposed by Mathur and Gishler (1955). The results prove the applicability of these contactors for drying of sludge from paper industry.