METHOD OF PROCESSING DEHYDRATED WASTE WATER SEDIMENTS Russian patent published in 2003 - IPC

FIELD: waste water treatment. SUBSTANCE: invention relates to reusing and processing wet low-calorie organic-origin materials, in particular dehydrated sediments of municipal and industrial effluents by combustion on routine boiling assemblies. Dehydrated sediments with water content 60-85% are mixed with coal, ground and simultaneously dried by hot air to form solid dusty fuel, which is incinerated in industrial assembly firebox to form ashes, which are further rejected, proportion of said sediments in mix is 1 to 5%, grinding of mix being effected to grinding fineness R(90) = 5-15%, and drying being conducted with hot air at 200-400 C to moisture level 1-2%. EFFECT: avoided preliminary drying, simplified processing due to utilization of routine equipment, and reduced fuel consumption. 1 dwg, 1 tbl