Polyaluminium chloride reduction method and manufacturing method of torrefied wood flour natural material based coagulant

摘要

The method for reducing polyaluminum chloride of a natural material mixture coagulant using semi-carbonized wood according to the present invention includes: S1) chipping the wood to a certain size or less using an industrial chipper; and S2) superheated steam treatment of the wood obtained after the chipping step. A step of superheated steam treatment in an apparatus, S3) inserting the superheated semi-carbonized wood chips into a crusher and pulverizing them into semi-carbonized wood powder in the range of 75 µm to 160 µm, and S4) the semi-carbonized wood powder as a synthetic weapon. It characterized in that it comprises the step of mixing with polyaluminum chloride which is a polymer coagulant.