Methods and Equipment for Sludge Reduction by Sludge Re-Constitute Technology with Continuous Concentration Dewatering Process

摘要

The present invention relates to a method and a facility to reduce a sludge dehydration cake by using a reduced aqueous solution manufacturing process. The method comprises: a reduced sludge solution manufacturing step of manufacturing a reduced sludge solution by adding a fixed amount of a biological buffering agent and water to a completely dehydrated sludge dehydration cake and then stirring the components; a sludge aqueous solution manufacturing step of manufacturing a sludge aqueous solution by adding a fixed amount of a biological buffering agent to the reduced sludge solution and then stirring the components; a reduced aqueous solution manufacturing step of manufacturing a reduced aqueous solution by adding a fixed amount of water to the sludge aqueous solution up to a solid content of 3-8% and then stirring the components; and a continuous concentrating and dehydrating step of separating a dehydration solution and dehydration sludge by continuously concentrating and dehydrating the reduced dehydration cake sludge solution. According to the present invention, without adding electrical heat to room temperature, biological functions of microorganisms of the dehydration cake sludge are identified and the characteristics thereof are comprehended, and thus, the present invention is capable of simplifying the extraction of glycocalyx, thereby maximizing the dehydration effect through continuous concentration and dehydration, which is a postprocess.