Patent ID: 8468714
Filing Date: 2013-06-25
Classification: F26B,Y02B,Y02W

Abstract:
1. A method for the simultaneous storage and drying of sewage sludge comprising the following steps: a) Mechanically dehydrating the sewage sludge to a dry mass content of 10% to 35%, b) Applying the dehydrated sewage sludge by means of at least one pump to the floor of a greenhouse-like drying hall, the floor of which is roofed by a transparent building shell, c) Drying the sewage sludge utilizing solar radiation that radiates into the drying hall, d) Mechanically dehydrating additional sewage sludge to a dry mass content of 10% to 35%, e) Introducing the dehydrated additional sewage sludge by means of the at least one pump or at least one additional pump into the drying hall and mixing the additional sewage sludge with the sewage sludge that is already present in the drying hall, f) Drying the resulting mixture utilizing solar radiation that radiates into the drying hall, and g) Clearing the mixture out of the drying hall or repeating steps d) to f), wherein in step e) the additional sewage sludge is mixed with the mixture that is already present in the drying hall, rather than with the sewage sludge that is already present in the drying hall, wherein the mechanical dehydration is carried out largely continuously.