Integrated device for biochemical treatment of wastewater

The utility model discloses an integrated device for biochemical treatment of wastewater, and belongs to the field of biochemical treatment equipment of wastewater. The device comprises an SBR (sequencing batch reactor) water inlet tank, an SBR reaction tank, an SBR water outlet tank and four groups of ABR (anaerobic baffled reactor) reaction tanks, the integrated device is of a closed structure surrounded by three layers from inside to outside, and the SBR reaction tank is arranged on the innermost layer; the SBR reaction tank is positioned in the center of the whole integrated device; the middle layer is provided with four groups of ABR reaction tanks, and the four groups of ABR reaction tanks surround the SBR reaction tank on the inner layer; the outer layer comprises an SBR water inlet tank, an SBR water outlet tank and two groups of MBR reaction tanks, and the outer layer surrounds the four groups of ABR reaction tanks positioned in the middle layer; the integrated device disclosed by the utility model i