Abstract: The invention refers to a method for drying sludge, in particular sewage sludge, by creating a granulate from the dried product. According to said method, a mixture of a carrier material consisting of recycled sludge which has already been dried and liquid sludge is fed to a dryer 6. The invention is characterised in that the dried product is fed to a solids separator 8 after the dryer 6 and is stored intermediately in the former in an intermediate container that is placed immediately downstream of said separator. The invention also relates to an installation for carrying out said method.

Abstract: A process and apparatus for mechanical and thermal dewatering of solid-liquid mixture, particularly industrial and sewage sludges, feeds the sludge to a dewatering device to produce a dewatered material which is then dried in a thermal drier. The dewatered sludge is reduced to a granulate-like structure without any intermediate stage and is then dried immediately afterwards. An apparatus for implementing the process includes a mechanical dewatering device being directly connected to a feed unit to produce a granulate-like structure and which is permanently connected to the thermal drier.

Abstract: An aerosol dispenser for fluid products is described which has a container for product to be dispensed, a separator piston pump for generating compressed air as a propellant, a spray nozzle for aspirating, and spraying product from the product container, flowpaths, for compressed air from the piston pump, and for product from the product container, to the spray nozzle, valves and associated with the flowpaths and opening the paths dependent on the piston approaching or reaching full compression stroke position in the cylinder of the aforesaid piston pump. An abutment in the piston pump acts, in the aforesaid compression stroke position, on the valve body of the compressed air flow-controlling valve. The product flow control valve has a flexible elastic diaphragm across the compressed air flowpath and separating the latter from the interior of the product container.