Berlie - Belt Filter Press - Brochure

Quebec City has 5 belt filter presses on site purchased from Berlie Technologies Inc. These presses currently dehydrate the municipal sludge from a population of approximately 600,000 people. This amount of primary wastewater treatment sludge, which is currently of 50 dry metric tons per day, corresponds to the capacity of 2 ½ of the 5 belt filter presses installed, each of which has a belt width of 2.5 meters. This sludge is dehydrated from approximately 5% in solids content at the inlet to approximately 27% at the outlet.This amounts to a belt loading of about 745 pounds of dry solids per meter of belt width per hour. The dehydrated sludge is then conveyed to the rotary dryers and, finally, to the incinerator as an additional fuel source of which the calorific value is estimated to be of 13.4 MJ/Kg.