Apparatus and method for the treatment of low c/n urban sewage by pre-short-range denitrification-anammox
A short-range denitrification and anaerobic ammonium oxidation technology, applied in the field of pre-short-range denitrification-anaerobic ammonium oxidation treatment of low C/N urban sewage, can solve the impact of denitrification effect, difficulty in inhibiting nitrifying bacteria, and control factors Complicated problems, to achieve the effect of simple control operation, stable effect, and avoid consumption
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] The pre-short-range denitrification reactor (2) is provided with a water inlet (2.2), a water outlet (2.3), an aeration head (2.4), an air pump (2.5), an electronic flow meter (2.6), a first stirring device ( 2.7), drain valve (2.8) and portable dissolved oxygen analyzer (2.9); described intermediate water tank (3) is provided with overflow pipe (3.1) and vent pipe (3.2); described anaerobic ammonia oxidation reactor ( 4) It is equipped with water inlet (4.2), return pipe (4.3), return pump (4.4), outlet pipe (4.5) and three-phase separator (4.6); the raw water tank (1) passes through the first peristaltic pump (2.1) and The water inlet (2.2) of the pre-short-range denitrification reactor (2) is connected; the outlet water of the pre-short-range denitrification reactor (2) is discharged into the intermediate water tank (3); the...
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