Integrated equipment for domestic sewage treatment and integrated machine for domestic wastewater treatment

Description :

　　Integrated equipment for domestic sewage treatment and integrated machine for domestic wastewater treatment

　　The anaerobic tank is equipped with inlet holes, outlet holes, and mixing devices; The anoxic tank is equipped with an inlet hole, a second inlet hole, an outlet hole, and a push flow device. The second inlet hole is connected to the outlet hole of the anaerobic tank; The SBR tank is equipped with an inlet hole, an aeration device, a sewage sludge pump, a sewage sludge pipe, and a decanting device. The inlet hole is connected to the outlet hole of the anoxic tank, and the sewage sludge pipe is connected to the sewage sludge pump;

　　The outer end of the sewage sludge pipe is equipped with a sewage sludge valve. One end of the sludge return pipe is connected to the sewage sludge pipe through the return valve, and the other end of the sludge return pipe is connected to the anaerobic tank;

　　The SBR tank is equipped with a mixed liquid reflux pump, and the mixed liquid reflux pipe is connected to the anoxic tank and the SBR tank through the mixed liquid reflux pump; There are at least 2 SBR tanks, and the inlet of each SBR tank is connected to the outlet of the anoxic tank. The sewage sludge pump of each tank is connected in parallel to the sewage sludge pipe, and the mixed liquid reflux pump of each tank is connected in parallel to the mixed liquid reflux pipe.

　　When in use, the pre treated sewage is continuously fed into the anaerobic tank and anoxic tank respectively; The mixed liquid after anaerobic biochemical treatment in the anaerobic tank enters the anoxic tank; The mixed solution after anaerobic biochemical treatment in the anoxic tank enters the SBR tank;

　　The mixed solution from the SBR tank is refluxed to the anoxic tank through a mixed solution reflux pump and a mixed solution reflux pipe; The sludge in the SBR tank is discharged outward through the sewage sludge pump and sewage sludge pipe; The sludge from the SBR tank is returned to the anoxic tank through the sewage sludge pump, sewage sludge pipe, and sludge return pipe; The operation process and time allocation of SBR tank are: (influent+aeration) 60-120 minutes, (settling+decanting) 60-120 minutes; Different SBR tanks are operated in a staggered order according to the sequence of inflow+aeration, settling+decanting, sedimentation+outflow. The staggered time depends on the operating cycle time and number of SBR tanks, achieving continuous inflow and outflow.

　　This utility model replaces the aerobic section in the traditional A2O process with a sequentially operated SBR tank. The pre treated wastewater is divided into two points and enters the anaerobic and anoxic tanks, respectively. The main purpose is to provide the required carbon sources for phosphorus releasing bacteria in the anaerobic tank and denitrifying bacteria in the anoxic tank, respectively, to improve the effective utilization rate of inherent carbon sources in the wastewater; After being sequentially treated by anaerobic phosphorus releasing bacteria and anaerobic denitrifying bacteria, the sewage enters the SBR tank and undergoes several stages including aeration, settling, sedimentation, and effluent. The purpose is to undergo nitrification by nitrifying bacteria in the SBR tank after being treated by anaerobic and anaerobic tanks, removing ammonia nitrogen from the sewage and achieving aerobic phosphorus uptake; In the static stage of the SBR tank, the mixed solution is refluxed to the anoxic tank for denitrification and denitrification, with a reflux rate of 1-3 times the total amount of sewage inflow. At the same time, the sludge is refluxed to the anaerobic tank to allow polyphosphate accumulating bacteria to experience anaerobic phosphorus release habitats, with a reflux rate of 0.5-1.5 times the total amount of sewage inflow.

AfterSalesService :

• Integrated sewage treatment equipment