A procedure with the corresponding device, to separate mineral substances that are located in urban waste and wastewater mud, intended for common disinfection
ES161786A1
A procedure for the simultaneous anaerobic disinfection of mud of waste agus and urban waste and a device for carrying out such procedure
ES161688A1
A procedure with the corresponding device for the simultaneous anaerobic adesinfection of wastewater mud and domestic waste
ES161471A1
A procedure to precipitate or separate substances in dispersion.
GB470377A
Improvements in and relating to apparatus for cleaning screens and like devices for separating solids from liquids
GB460021A
Improvements in and relating to thickening, stirring or agitating apparatus
