Rotating bed biofilm treatment device and method

The invention relates to a rotating bed biofilm treatment device and a rotating bed biofilm treatment method. The device comprises a transmission shaft and a plurality of carrier discs, wherein the carrier discs are each of a disc-shaped support hollowed-out structure, the transmission shaft penetrates through the centers of the carrier discs and is connected with the carrier discs through connecting rods, the disc faces of the carrier discs are perpendicular to the transmission shaft, and the outer edges of the carrier discs are connected with guide rails on the inner side of a pool body; a gap is formed between every two adjacent carrier discs, and a plurality of fiber bundles are fixedly connected to the carrier disc. When the carrier discs are driven by the transmission shaft to rotate, in the rotating process of the carrier discs, water flows and is dispersed in the pool body, so that water flow shearing is formed between the carrier discs and the water body to stimulate the biofilm formation and promote