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Device and method for realizing short-cut nitrification coupled with anaerobic ammonium oxidation and denitrification through sludge fermentation in continuous flow process of sewage treatment

A technology of anaerobic ammonium oxidation and short-cut nitrification, which is applied in the device and field of realizing short-cut nitrification coupled with anaerobic ammonium oxidation and denitrification in the continuous flow process of sewage treatment through sludge fermentation products, which can solve the difficulty of realizing short-cut nitrification in continuous flow process and other issues, to achieve the effect of reducing expenses and drug consumption, and reducing treatment costs

Active Publication Date: 2022-04-19
BEIJING UNIV OF TECH
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  • Application Information

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Problems solved by technology

This method is simple and feasible, and can solve the problem of short-cut nitrification in the continuous flow process, and can provide nitrite nitrogen for denitrification and anaerobic ammonium oxidation, and at the same time achieve the purpose of saving energy and reducing consumption

Method used

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  • Device and method for realizing short-cut nitrification coupled with anaerobic ammonium oxidation and denitrification through sludge fermentation in continuous flow process of sewage treatment

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Embodiment Construction

[0022] The present invention will be described in further detail in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1As shown, a technology of using sludge fermentation to strengthen the partial nitrification anaerobic ammonium oxidation of continuous-flow urban sewage is equipped with a raw water tank (1), a continuous-flow AAO reactor (2), a sedimentation tank (3), and sludge fermentation Tank (4); raw water tank (1) includes water inlet pipe (1.1), outlet pipe (1.2) and vent pipe (1.3); outlet pipe (1.2) passes through peristaltic pump (1.4) and continuous flow AOA reactor (2) connected; the continuous flow AOA reactor (2) includes 8 cells, which are divided into 2 cells anaerobic section (2.1), 4 cells anoxic segment (2.2), and 2 cells aerobic segment (2.3) according to the direction of water flow. To prevent the occurrence of short flow, each compartment is connected with a short pipe; the aerobic compartment (2.3) is continuously air-...

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Abstract

The invention relates to a device and a method for realizing short-range nitrification coupled with anaerobic ammonium oxidation denitrification in a sewage treatment continuous flow process through sludge fermentation products, belonging to the field of sewage treatment. The device is mainly composed of a sewage raw water tank, a sludge fermentation product storage tank, a continuous flow reactor for sewage treatment, and a sedimentation tank. The sewage treatment continuous flow reactor in the method includes all forms of continuous flow reactors in sewage treatment, and the NOB activity is mainly inhibited by sludge fermentation products, so that short-range nitrification reaction occurs in the aerobic section in the continuous flow. The method is simple and feasible, can solve the problem of difficulty in realizing short-cut nitrification in a continuous flow process, and can provide nitrite nitrogen for denitrification and anaerobic ammonium oxidation, and at the same time achieve the purpose of saving energy and reducing consumption.

Description

technical field [0001] The invention discloses a device and method for realizing short-range nitrification coupled with anaerobic ammonium oxidation denitrification through sludge fermentation products in a continuous flow process of sewage treatment, which can realize short-range nitrification effect while reducing sludge, and is suitable for cities in my country The current situation of sewage C / N is relatively low, saving energy, saving energy and reducing consumption. Background technique [0002] With the continuous development of our country's society and economy, people's living standards are increasing day by day, and the accompanying acceleration of urbanization has led to an increase in the discharge of domestic sewage. The organic matter and nitrogen, phosphorus and other pollutants contained in domestic sewage will cause eutrophic oxidation in rivers, lakes and other water bodies after being discharged into water bodies, and destroy the original water environment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/34C02F11/04C02F101/16
CPCC02F3/303C02F3/305C02F3/307C02F3/301C02F3/34C02F11/04C02F2101/16C02F2101/166C02F2303/06
Inventor 彭永臻贺强刘瑾瑾张琼
Owner BEIJING UNIV OF TECH
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