Method of utilization of sewage waste, integrated with energy recovery

摘要

A method for sewage waste utilization integrated with energy recovery where the sewage sludge after methane fermentation is subjected to drying to obtain product of dry contents of at least 90%, and then it is mixed with fine coal at the ratio not higher than 5:95, preferably 3:95 and subsequently obtained mixture is directed to a ball mill, in which the mixture is comminuted to dust of a diameter of at least 0,1 mm and in the form of dust it is delivered to lower low-emission spin-type burner installed in lower part of the boiler. Obtained dust is introduced in the boiler producing steam to drive turbines in power station.