White pulp wastewater treatment and comprehensive utilization device and utilization method

The invention relates to the technical field of wastewater treatment, in particular to a white pulp wastewater treatment comprehensive utilization device and a utilization method.The white pulp wastewater treatment comprehensive utilization device comprises a treatment box body, a filtering component arranged in the treatment box body, a sedimentation tank and an air floatation tank, and the filtering component comprises a rotating grid plate and a scraper blade used for removing sediments on the surface of the rotating grid plate; a sedimentation part used for reacting with slurry is arranged in the sedimentation tank, the sedimentation part comprises a shaft rod, a plurality of stirring paddles and a feeding pipe used for adding a precipitator, the shaft rod is driven by a motor fixedly arranged on the lower surface of the treatment box body, and the stirring paddles are uniformly arranged on the shaft rod. Slurry and a precipitant are mixed and reacted in the sedimentation tank through the sedimentation co