The invention belongs to the technical field of
sewage treatment. A
sewage treatment optimization operation
system comprises an enhanced degassing zone, an anoxic tank, an aerobic tank, a degassing zone, a water outlet zone, a secondary
sedimentation tank and a biological tank water inlet
system; the anoxic tank is provided with a
carbon source adding
system, a chemical synergistic dephosphorization dosing system is arranged in the water outlet zone, the enhanced degassing zone is connected with the anoxic tank, the anoxic tank is connected with the aerobic tank, the aerobic tank is connectedwith the degassing zone, the degassing zone is connected with the water outlet zone, a nitrifying liquid
backflow system is arranged between the degassing zone and the enhanced degassing zone, a
sludge backflow system is arranged between the secondary
sedimentation tank and the enhanced degassing zone, and an on-line
phosphate meter is arranged at the biological tank water inlet system; and an anaerobic tank is changed into the enhanced degassing zone, and feeds are a
backflow nitrifying liquid and backflow
sludge. The operation system provided by the invention has the advantages of simple running and operation, a high
utilization rate of a
carbon source, a good enhanced
denitrification effect, significantly-reduced
carbon source addition costs, a low addition amount of a
phosphorus removal agent, and low operation
energy consumption.