Sewage treatment system based on AB technology realizes energy recuperation

The utility model discloses a sewage treatment system based on AB technology realizes energy recuperation, include: grid, grit chamber, a section aeration tank, sedimentation tank, anaerobism pond, oxygen deficiency pond, good oxygen pond, second sedimentation tank, sludge concentration dehydration device, sludge digestion device and marsh gas storage tank, each cell body management way connects into the processing system that can realize AB technology. The grid of this processing system through setting up organic connection, the grit chamber, a section aeration tank, the sedimentation tank, the anaerobism pond, the oxygen deficiency pond, good oxygen pond, the second sedimentation tank, the sludge concentration dehydration device, sludge digestion device and marsh gas storage tank, optimize and improve B section technology, the concentration in addition by the mud that produces two sections biochemical processs when realizing the denitrification of wastewater dephosphorization, the dehydration, anaerobic dig