摘要:
Sludge treatment process, where sludge to which a flocculating agent has been added is stirred by a stirring pump (2) or shear-stirred by a liquid shear-stirred (20) prior to initiation of flocculation reaction to render the flocculating agent in a fine particulate state to thereby disperse, diffuse or distribute the flocculating agent in a fine particulate state throughout the sludge, so that flocks or aggregate structure type flocks or blocks can be efficiently formed. A treating line (1) is constructed such that the sludge can flow therein as a laminar flow. The distance from a flocculating agent injection part (3) to a stirring pump (2) is made to as distance of approximately 0.2-0.6m such that the flocculating agent can pass through in a reaction initiation time obtained in advance for the flocculating agent. A solid-liquid separator is set at a position 0.2-0.6m from the stirring pump or a second flocculating agent injection point so that the flocks can reside by the solid-liquid separator.