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Granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor and method

An anaerobic ammonia oxidation and granular sludge technology, applied in the field of sewage biological treatment, can solve the problems of flocculent sludge floating, deterioration of effluent quality, etc., and achieve the effect of fast settling speed, optimization of microbial distribution structure, and promotion of elutriation.

Inactive Publication Date: 2017-05-31
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem that the nitrite nitrogen and ammonia nitrogen in the mixed solution in the precipitation stage react to produce nitrogen gas that combines with the floc sludge, which may cause the floc sludge to float up, thus deteriorating the water quality of the effluent, and provides a granular Sludge-dominated integrated anaerobic ammonium oxidation denitrification reactor and method

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  • Granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor and method

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specific Embodiment approach 1

[0023] Specific Embodiment 1: In this embodiment, an integrated anammox denitrification reactor dominated by granular sludge, the reactor includes an aeration pump 1, a flow meter 2, an aeration disc 4, a vent pipe 5, and a water inlet pipe 6 , sampling port 7, water bath jacket 8, reaction tube 9, on-line monitor 10, three-phase separator 11, annular water outlet 12, zigzag end face 13, water outlet pipe 14, air outlet pipe 15, water-sealed exhaust cylinder 16, inlet The bucket 17 and the water inlet pump 18 are characterized in that the reaction tube 9 is provided with a separation section A, a transition section B and a reaction section C from top to bottom, the inner diameter of the reaction section C is smaller than the inner diameter of the separation section A, and the upper end surface of the separation section A is along the The periphery is provided with a zigzag end face 13, the upper end of the separation section A is provided with an annular water outlet 12 along t...

specific Embodiment approach 2

[0024] Embodiment 2: This embodiment differs from Embodiment 1 in that the circulation pipe 20 is provided with a circulation pump 3 . Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that a water inlet pump 18 is provided between the water inlet barrel 17 and the water inlet pipe 6 . Others are the same as those in the first or second embodiment.

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Abstract

The invention discloses a granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor and a method, relates to a granular sludge-based shortcut nitrification-anaerobic ammonium oxidation integrated denitrification reactor and a starting method, belongs to the technical field of biological sewage treatment and aims to solve the technical problems that nitrite nitrogen in a mixed solution reacts with ammonia nitrogen to generate nitrogen during a precipitation stage, the nitrogen is combined with floc sludge, and upward floating of the floc sludge can be caused, so that the effluent quality is deteriorated. The granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor comprises an aeration pump, a flow meter, an aeration disk, a blow-down pipe, a water inlet pipe, sampling openings, a water bath sleeve, a reaction pipe, an online monitor, a three-phase separator, an annular water outlet tank, a sawtooth-shaped end surface, a water outlet pipe, a gas outlet pipe, a water sealed exhaust pipe, a water inlet barrel and a water inlet pump. The method comprises the following steps: 1, system booting; 2, program running; 3, stable running of the reactor. By adopting the granular sludge-based integrated anaerobic ammonium oxidation denitrification reactor disclosed by the invention, a removal rate of total nitrogen is higher than 85 percent.

Description

technical field [0001] The invention relates to a granular sludge-based short-range nitrification-anammox integrated denitrification reactor and a start-up method, belonging to the technical field of sewage biological treatment. Background technique [0002] Short-cut nitrification-ANAMMOX autotrophic nitrogen removal technology is a new type of wastewater biological nitrogen removal process. This process has many advantages such as energy saving, no need to add carbon source, small sludge output, and reduction of greenhouse gases. At present, the short-cut nitrification-ANAMMOX autotrophic denitrification process has been widely used in the treatment of wastewater with high ammonia nitrogen and low carbon to nitrogen ratio, and has achieved good environmental and economic benefits. The working principle of the short-cut nitrification-anammox process is to enrich the ammonia oxidizing bacteria and anammox bacteria in the same reactor, supply oxygen and mix through the aerat...

Claims

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Application Information

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IPC IPC(8): C02F3/30
Inventor 韩晓宇操沈彬彭永臻
Owner HARBIN INST OF TECH
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