Process for treating domestic sewage with low CN (Carbon-Nitrogen) ratio by use of anaerobic/aerobic SNDPR (Simultaneous Nitrification and Denitrification Phosphorus Removal) system capable of enriching phosphorus-accumulating bacteria
A technology of domestic sewage and phosphorus bacteria, applied in the field of sewage treatment, can solve the problems of poor phosphorus removal effect, inability to achieve good coexistence of nitrogen and phosphorus removal under the same conditions at the same time, and insufficient carbon source, so as to shorten the denitrification process , Denitrification and phosphorus removal performance is stable and maintains, and the effect of saving carbon sources
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[0023] The present invention will be further described below in conjunction with the drawings and embodiments: figure 1 The anaerobic / aerobic SNDPR system for the treatment of low-CN ratio domestic sewage with enriched phosphorus accumulating bacteria includes domestic sewage inlet tank 1, simultaneous nitrification and denitrification phosphorus removal SBR reactor 2, outlet water tank 3, sludge discharge tank 4. PLC online monitoring and feedback system 5, PH and DO tester 6, ORP tester 7; wherein the domestic sewage water inlet tank 1 is connected to the water inlet of the synchronous nitrification and denitrification phosphorus removal SBR reactor 2 through the water inlet pump 1.3; The sludge discharge tank 4 is connected to the upper sludge discharge port 2.6 of the synchronous nitrification and denitrification dephosphorization reactor 2 through the sludge pump 4.1; the effluent water tank 3 is connected to the synchronous nitrification and denitrification dephosphorizatio...
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