Method for realizing autotrophic nitrogen removal of city sewage through symbiosis of flocculent sludge and granular sludge
A floc sludge, autotrophic denitrification technology, applied in the direction of water/sludge/sewage treatment, biological water/sewage treatment, sludge treatment, etc., can solve the problem that the short-range nitrification process is difficult to realize stably, and reach the discharge volume less, to avoid the inhibitory effect
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[0021] The present invention will be further described below in conjunction with the drawings and embodiments: figure 1 As shown, the symbiosis of floc sludge and granular sludge realizes the autotrophic denitrification of urban sewage. The device is equipped with urban sewage raw water tank (1), high-load activated sludge reactor (2), secondary sedimentation tank (3), and intermediate water tank. (4) Autotrophic denitrification reactor (5), sludge treatment reactor (6); urban sewage raw water tank (1) with overflow pipe (1.1) and vent pipe (1.2); urban sewage raw water tank (1) The high-load activated sludge reactor (2) is connected to the water inlet pipe through the inlet pump (2.1); the high-load activated sludge reactor (2) is divided into several compartments, with flow holes staggered up and down according to the direction of water flow Connected to each cell, equipped with aeration head (2.3), air compressor (2.7), gas flow meter (2.6) and gas volume regulating valve (2...
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