COMBINED TREATMENT METHOD FOR TREATING GARBAGE AND SLUDGE IN SEWAGE

摘要

PURPOSE: Provided is a combined treatment method for treating garbage and sludge in sewage. CONSTITUTION: The method comprises the steps of (a) sorting irons, plastics, vinyls, and the other foreign matters from garbage, (b) crushing the separated garbage to have a grain size of 1-2mm to accelerate decomposition rate of the garbage, (c) leavening the garbage to produce organic acid and adjusting pH of the garbage by feeding excrements, wastewater of septic tanks, decanted water of anaerobic digester or a mixture thereof to the garbage, (d) inputting the pH adjusted garbage into a sludge thickener of sewage treatment process and thickening the garbage and the sludge together in the sludge thickener, (e) treating the thickened sludge using anaerobic degradation process, and (f) dehydrating the resultant material of step (e).