Method for realizing continuous-flow city sewage autotrophic nitrogen removal based on FNA treatment of sludge
A technology for autotrophic denitrification and urban sewage, applied in runoff/rainwater treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problem that nitrite cannot be supplied stably, and achieve increased production capacity and aerobic The effect of low volume and low energy consumption of sewage treatment
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[0020] Below in conjunction with accompanying drawing and embodiment the present invention will be further described: as figure 1 As shown, the symbiosis of floc sludge and granular sludge to realize the autotrophic denitrification device of urban sewage consists of an urban sewage raw water tank (1), a reactor for removing organic matter (2), an intermediate sedimentation tank (3), an autotrophic denitrification reaction device (4), secondary settling tank (5), sludge treatment reactor (6); urban sewage raw water tank (1) is equipped with overflow pipe (1.1) and vent pipe (1.2); urban sewage raw water tank (1 ) is connected to the water inlet pipe of the organic matter removal reactor (2) through the water inlet pump (2.1); Gas head (2.3), air compressor (2.7), gas flow meter (2.6) and gas volume regulating valve (2.5); organic matter removal reactor (2) is connected to the intermediate sedimentation tank (3) through the intermediate sedimentation tank connecting pipe (2.4) ...
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