DISSOLVED AIR FLOTATION DEVICE CAPABLE OF INCREASING ORGANIC MATTER RECOVERY

摘要

The present invention relates to a dissolved air flotation device, and more particularly, to a dissolved air flotation device capable of increasing the recovery amount of organic matter. To this end, the dissolved air flotation device comprises an agglomeration unit that mixes water to be treated and a flocculant to form and grow flocs; Separation unit for the micro-bubbles to flow through the nozzle provided at the bottom, and the microbubbles are attached to the floc and floats and removes the floc to the water surface; And a circulating water supply line for supplying circulating water in which air is dissolved by a nozzle provided in the separating part; as a dissolved air float (DAF) device, disposed at the front end of the agglomerating part, and equipped with a stirrer therein An anaerobic tank to stir the water to be treated; And a flock conveying line for conveying the flock removed from the separation unit to the anaerobic tank.