Low-carbon source two-stage MBR (Membrane-Bioreactor) enhanced nitrogen and phosphorus removal method for city sewage
A technology for denitrification and phosphorus removal of urban sewage, applied in the field of two-stage MBR enhanced denitrification and phosphorus removal, can solve the problems of difficulty in greatly improving denitrification and phosphorus removal efficiency, inability to achieve continuous water discharge, cumbersome control, etc., to achieve enhanced denitrification Phosphorus removal efficiency, solving the contradiction of carbon source competition and mud age contradiction, and strengthening the effect of nitrification
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[0022] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0023] Such as figure 1 As shown, the present invention is a two-stage MBR enhanced nitrogen and phosphorus removal method for low-carbon source urban sewage. The treatment system implementing the method of the present invention adopts a regulating tank 1, an anaerobic tank 2, a sedimentation tank I3, an aerobic MBR tank I4, anoxic Pool 5, Aerobic MBR Pool Ⅱ6, Sedimentation Tank Ⅱ7. The aerobic MBR pool I4 and the aerobic MBR pool I6 have built-in membrane module 8 and membrane module 9 respectively, which are used for the circulation of nitrifying liquid and the system membrane to filter out water. In the aerobic MBR pool 1 and the aerobic MBR pool, the membrane surface is flushed to control membrane fouling by blower 15 and blower 16 aeration respectively, and aeration also plays the effect to microbial oxygen supply simultaneously, and by slud...
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