Sewage disposal system with biological phosphorus removal and chemical phosphorus removal bypass and disposal method
A sewage treatment system, chemical phosphorus removal technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of low biological phosphorus removal efficiency and pure chemical phosphorus removal operation According to problems such as high cost, achieve the effect of phosphorus removal and stability, realize the resource recovery of phosphorus, and improve the effect of phosphorus removal rate
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[0029] Such as figure 1 As shown, this embodiment provides a sewage treatment system with biological phosphorus removal and side-channel chemical phosphorus removal. The system uses biological nitrogen and phosphorus removal while adding side-channel chemical phosphorus removal, which effectively improves the efficiency of biological phosphorus removal. Effect, the system specifically includes: denitrification and phosphorus removal subsystem and side channel phosphorus removal subsystem, wherein, the nitrogen and phosphorus removal subsystem is composed of anaerobic tank 1, anoxic tank 2, aeration tank 3, sedimentation tank 4. The sludge return tank 5 and the sludge return pump 6 are connected in sequence to form an anaerobic-anoxic-aerobic denitrification and phosphorus removal subsystem, wherein the outlet of the sludge return tank 5 passes through the sludge return pump 6 and the pipeline Connect back to the sewage inlet of the anaerobic tank 1; the outlet pipe of the aera...
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