SBR (Sequencing Batch Reactor) biochemical reactor for treating paint spraying wastewater

The utility model relates to an SBR (Sequencing Batch Reactor) biochemical reactor for paint spraying wastewater treatment, which comprises a reactor body and a filler frame, an aeration disc is mounted at the bottom of an inner cavity of the reactor body, the aeration disc is fixed in the center of the bottom of the cavity of the reactor body, and an aeration pipe connecting pipe at the tail end of the aeration disc transversely penetrates through the upper wall of the inner cavity of the reactor body and extends to the outside of the reactor body; an output end pipe of the aeration pipe connecting pipe is communicated and connected with an external fan, the two filler frames are vertically arranged on the aeration disc, and the edges of the filler frames are fixed with the inner cavity wall of the reactor body. According to the SBR biochemical reactor for treating the paint spraying wastewater, a plurality of elastic fillers which are designed at equal intervals are adopted, so that not only can biofilm cul