Method for fermentation to filler recycling sewage sludge for the manufacture of landfill cover and fill material

摘要

The present invention discloses aerobic fermentation technology of sewage sludge recycling filler for the production of landfill cover and fill material. The present invention (a) after mixing 100_wt% of sewage sludge 5 and 0.3 to 0.5 wt% of microorganisms and 20 to 50 wt% of returned sludge 12 in the pretreatment chamber 10, 20 to 40 A pre-treatment step of preparing a sewage sludge mixture having a water content of 65 to 70% by weight by mixing the filler 7 in weight percent, (b) moving the sewage sludge mixture to the fermentation chamber 20, and the sewage sludge mixture 60 Fermentation by maintaining at a temperature of 70 ° C. for 4 to 5 days, (c) moving the fermented sewage sludge mixture to the stabilization chamber 30, and drying at a temperature of 50 to 70 ° C. for 5 to 10 days , forming a powdery sewage sludge mixture, and (d) moving the powdery sewage sludge mixture to the sorting chamber 40 and passing it through a separator set according to the particle size of the filler 7, ) and the sewage sludge mixture (50) provides a sewage sludge fermentation method comprising the step of separating.