| 摘要 |
The present invention relates to a manufacturing method of an eco-friendly ecologic block using sewage sludge generated from a water treatment facility. More particularly, the manufacturing method of an eco-friendly ecologic block comprises the steps of: collecting sewage sludge, and warehousing the sewage sludge at a collection place; injecting the stocked sewage sludge to a fermentation tank having a cylindrical chamber form, and adding 10 vol% of an aqueous aerobic microbe solution based on the capacity of the fermentation tank to ferment the resultant product for a short period of time; draining the water, collecting residues, and treating the residues with an electron beam having at least 10 kGy of electron beam radiation dosage using an electron beam radiator while conveying the residues on a conveyor belt; injecting the resultant product to a primary decomposition tank, and adding a first additive to the primary decomposition tank to primarily decompose the resultant product; secondarily decomposing the resultant product by draining leachate, collecting the residues, injecting the residues to a primary decomposition tank, adding a second additive, and mixing the resultant product; dehydrating the resultant product when the secondary decomposition is finished; adding a coagulant to the resultant product to coagulate the same when the dehydration is finished, and conducting compression molding to manufacture an ecologic block. The aerobic microorganism water is prepared by mixing a warm water at 30-40C with aerobic microbes with a weight ratio of 9.5:0.5. |
