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Method for achieving sewage treatment continuous short-term nitrification and denitrification through sludge fermentation products

A technology for sewage treatment and short-range nitrification, applied in water/sludge/sewage treatment, biological water/sewage treatment, chemical instruments and methods, etc. Effect of processing fees

Inactive Publication Date: 2017-09-22
BEIJING UNIV OF TECH
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Problems solved by technology

[0006] Aiming at the difficulty of starting and maintaining short-cut nitrification

Method used

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  • Method for achieving sewage treatment continuous short-term nitrification and denitrification through sludge fermentation products

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Embodiment Construction

[0021] The system for realizing continuous flow short-path nitrification and denitrification of sewage treatment through sludge fermentation product is characterized in that it includes a sewage raw water tank (1), a sludge fermentation product storage tank (2), and a sewage treatment continuous flow reactor (3) (in the form of A / O reactor is an example), sedimentation tank (4); sewage raw water tank (1) includes overflow pipe (1.1) and vent pipe (1.2); sewage raw water tank (1) and sludge fermentation product storage tank ( 2) connected to the sewage treatment continuous flow reactor (3) through the water inlet pipe (3.1), the water inlet pump (3.2), the sludge fermentation product feeding pipe (2.1), and the sludge fermentation product feeding pump (2.2); The continuous flow reactor (2) (taking the A / O process as an example) includes the anoxic section (3.3) and the aerobic section (3.4). The water flow hole is connected; the aerobic section (3.4) adopts the air pump (3.6), ...

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Abstract

The invention discloses a method for achieving sewage treatment continuous short-term nitrification and denitrification through sludge fermentation products, and belongs to the field of sewage treatment. The apparatus of the present invention mainly comprises a sewage raw water tank, a sludge fermentation product storage tank, a sewage treatment continuous stream reactor and a precipitation pool, wherein the sewage treatment continuous stream reactor comprises all forms of continuous stream reactors in the sewage treatment, wherein mainly the NOB activity is inhibited through the sludge fermentation product, such that the aerobic section in the continuous stream is subjected to the short-term nitrification reaction. According to the present invention, the method is simple and feasible, can solve the problem of difficult achievement of the continuous stream short-term nitrification, can provide the nitrite nitrogen for the denitrification and anaerobic ammonium oxidation, and further can achieve the purposes of energy saving and consumption reducing.

Description

technical field [0001] The invention relates to a method for realizing continuous-flow short-path nitrification and denitrification of sewage treatment through sludge fermentation products, and belongs to the application field of continuous-flow activated sludge method. Background technique [0002] Water pollution is caused by the level of pollutants discharged into the water body exceeding the self-purification capacity of the water body. The phenomenon of "water body eutrophication" is a phenomenon caused by excessive nitrogen in water. In recent years, the sewage discharge standards formulated by the state have become increasingly stringent, which has also brought major challenges to the field of sewage treatment. [0003] Anammox technology has been extensively studied because it belongs to the category of autotrophic nitrogen removal. Anaerobic ammonium oxidation technology is a process in which anaerobic ammonium oxidation bacteria use ammonia nitrogen and nitrite ni...

Claims

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Application Information

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IPC IPC(8): C02F3/30
CPCC02F3/302
Inventor 彭永臻张婷刘瑾瑾丁鹏霖吴蕾
Owner BEIJING UNIV OF TECH
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