APPARATUS AND METHOD FOR TREATING SLUDGE BY COMBINING MICROBUBBLE OZONATION AND LOW-TEMPERATURE DRYING

Disclosed in the present invention are an apparatus and method for treating sludge by combining microbubble ozonation and low-temperature drying. The apparatus comprises a biochemical tank (16), a sedimentation tank (17), a sludge reaction tank (1), a pre-conditioning tank (2), a conditioning tank (3), and a plate-frame dehydrator (4). Sewage is added into the biochemical tank, sludge to be treated is generated by the biochemical tank, the sewage enters the sedimentation tank (17) along with the sludge generated after biochemical treatment in the biochemical tank, and the residual sludge treated by the sedimentation tank (17) enters the sludge reaction tank (1). The residual sludge entering the sludge reaction tank (1) circularly reacts with ozone gas microbubbles, and the sludge treated by the sludge reaction tank (1) is fed into the pre-conditioning tank (2) to be pretreated and then enters the conditioning tank (3). Concentrated sludge is formed in the conditioning tank (3) by using a flocculating agent, a