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Semi nitrosation-anaerobic ammonium oxidation combined type reactor as well as reaction process and system thereof

An anammox and reactor technology, which is applied in the field of reaction process and reaction system, can solve the problems of limiting ammonia nitrogen removal capacity, influence of reaction efficiency of anammox reaction zone, etc., and achieves the effect of improving reaction efficiency

Inactive Publication Date: 2015-09-30
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] What the present invention solves is that the flora and dissolved oxygen in the semi-nitrification reaction zone existing in the integrated semi-nitrification-anammox reaction zone in the prior art are easy to enter the anammox reaction zone, thereby causing the anaerobic ammonium oxidation reaction zone The reaction efficiency is affected, thereby limiting the technical problem of its ammonia nitrogen removal ability

Method used

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  • Semi nitrosation-anaerobic ammonium oxidation combined type reactor as well as reaction process and system thereof

Examples

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Effect test

Embodiment 1

[0036] This embodiment provides a semi-nitrosation-ANAMMOX combined reactor, including:

[0037] Cylindrical reactor shell 1, the bottom of the reactor shell 1 is provided with a waste water inlet 9, and the top is provided with a drain port 10 and an exhaust port 19; A semi-nitrification zone 2, a transition zone 4, and anammox zone 3 are set up in sequence, wherein the ratio of the heights of the semi-nitrification zone 2, transition zone 4, and the anammox zone 3 is 1.3:1 :1.6.

[0038] An oxygen-containing gas aeration port 20 is arranged in the semi-nitrification area 2, and the oxygen-containing gas aeration port 20 is arranged close to the water inlet; a BF filler 5 is also provided in the semi-nitrification area 2; The BF filler 5 is a plurality of cylindrical fillers arranged parallel to the central axis of the semi-nitrification zone 2, and semi-nitroso bacteria are attached to the BF filler 5; the total cross-sectional area of ​​the plurality of BF fillers 5 is the...

Embodiment 2

[0050] This embodiment provides a semi-nitrosation-ANAMMOX combined reactor, including:

[0051] Cylindrical reactor shell 1, the bottom of the reactor shell 1 is provided with a waste water inlet 9, and the top is provided with a drain port 10 and an exhaust port 19; A semi-nitrification zone 2, a transition zone 4, and anammox zone 3 are set up in sequence, wherein the height ratio of the semi-nitrification zone 2, transition zone 4, and the anammox zone 3 is 1.2:1 :1.5.

[0052] An oxygen-containing gas aeration port 20 is arranged in the semi-nitrification area 2, and the oxygen-containing gas aeration port 20 is arranged close to the water inlet; a BF filler 5 is also provided in the semi-nitrification area 2; The BF filler 5 is a plurality of cylindrical fillers arranged parallel to the central axis of the semi-nitrification zone 2, and semi-nitroso bacteria are attached to the BF filler 5; the total cross-sectional area of ​​the plurality of BF fillers 5 is the same as...

Embodiment 3

[0064] This embodiment provides a semi-nitrosation-ANAMMOX combined reactor, including:

[0065] Cylindrical reactor shell 1, the bottom of the reactor shell 1 is provided with a waste water inlet 9, and the top is provided with a drain port 10 and an exhaust port 19; The semi-nitrification zone 2, the transition zone 4 and the anammox zone 3 are set up in sequence, wherein the height ratio of the semi-nitrification zone 2, the transition zone 4 and the anammox zone 3 is 1:1 : 1.3.

[0066] An oxygen-containing gas aeration port 20 is arranged in the semi-nitrification area 2, and the oxygen-containing gas aeration port 20 is arranged close to the water inlet; a BF filler 5 is also provided in the semi-nitrification area 2; The BF filler 5 is a curved surface filler that is helically wound along the central axis of the semi-nitrification zone 2, and semi-nitrosifying bacteria are attached to the BF filler 5; the diameter of the BF filler 5 is the same as that of the reactor c...

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Abstract

The invention provides a semi nitrosation-anaerobic ammonium oxidation combined type reactor. A semi nitrosation zone is arranged at the lower part of a reactor cylinder, an anaerobic ammonium oxidation zone is arranged above the semi nitrosation zone, and a three-phase separator is arranged in a transition zone between the semi nitrosation zone and the anaerobic ammonium oxidation zone; when the reactor is operated, wastewater can use up most of oxygen in an upflow process in the semi nitrosation zone by controlling the upflow rate of the wastewater and the aeration quantity of an oxygen-containing gas; and moreover, because a carbon dioxide aeration device is arranged at the bottom end of the anaerobic ammonium oxidation zone of the reactor provided by the invention, the carbon dioxide gas introduced into the carbon dioxide aeration device can regulate the pH value of the wastewater to ensure that the wastewater is suitable for subsequent anaerobic ammonium oxidation reaction on the one hand, and can form a carbon dioxide layer at the bottom of the anaerobic ammonium oxidation zone to further block the oxygen in the upflow wastewater in the semi nitrosation zone at the lower part of the anaerobic ammonium oxidation zone on the other hand, thereby ensuring an anaerobic environment of the anaerobic ammonium oxidation zone.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a novel semi-nitrosation-anammox combined reactor and a reaction process and a reaction system based on the reactor. technical background [0002] With the development of social economy, the advancement of urbanization and the improvement of people's living standards, a large number of nitrogen-containing pollutants have entered natural water bodies, resulting in excessively high ammonia nitrogen content in water bodies. At present, ammonia nitrogen has become one of the important pollutants of water pollution. Excessive ammonia nitrogen will cause eutrophication of water body, which seriously affects industrial production and daily life of residents. Therefore, in order to prevent and control the eutrophication of water bodies, effective means must be used to treat nitrogen-containing pollutants in wastewater. For organic wastewater with high ammonia nitrogen, the tra...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 张莉王圣瑞杨嘉春储昭升
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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