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Quick start method for anaerobic ammonia oxidation bioreactor for urban sewage

An anaerobic ammonium oxidation and bioreactor technology, applied in anaerobic digestion treatment and other directions, can solve problems such as high energy consumption and material consumption, difficulty in starting, and achieve the effects of reducing costs, shortening the starting period, and alleviating and solving water crisis.

Active Publication Date: 2009-01-14
BEIJING UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high energy consumption and material consumption of the existing urban sewage biological denitrification process and the difficulty in starting the anaerobic ammonium oxidation process in urban sewage treatment, and to provide a rapid and low-consumption biological denitrification process for urban sewage start method

Method used

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Embodiment

[0023] The test is based on the effluent water from the domestic sewage of a certain community through anaerobic / aerobic biological phosphorus removal secondary treatment. The specific water quality is as follows: COD=50~60mg / L, BOD 5 ≤15mg / L, SS≤30mg / L, NH 4 + -N=55~85mg / L, NO 2 - -N≤0.25mg / L, NO 3 - -N≤1.5mg / L, TP≤1mg / L, PH=7.0~8.5.

[0024] The effluent quality of the anammox biological filter treated is as follows: COD5 4 + -N<5mg / L, removal rate above 95%; TN≤15mg / L, removal rate above 90%; TP≤0.5mg / L; PH=7.0~8.5.

[0025] The specific treatment is as follows:

[0026] 1) Build a biological filter

[0027] Using plexiglass as the material, it is processed into a filter column with a diameter of 20cm and a height of 3 meters. The bottom layer of the filter column is laid with 20cm high pebbles with a particle size of 1-2cm as the supporting layer, and 150cm of volcanic rock with a particle size of 6-8mm is added as the main reaction zone filler. A peristaltic pump is used ...

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Abstract

Disclosed is a quick startup method of an urban sewage anaerobic ammonium oxidation bioreactor, which belongs to the fields of urban sewage disposal and resource utilization. The method aims to solve the problems of high energy and material consumption, and difficult startup of the anaerobic ammonium oxidation process applied to the urban sewage denitrogenation treatment of the current urban sewage biological denitrogenation method. The method comprises: adopting a biomembrane filter chamber system under normal temperature, directly inoculating anaerobic ammonium oxidation bacteria, making the biomembrane filter chamber system adapt to the acclimation and amplification environment of anaerobic ammonium oxidation bacteria through adjusting the equipment operation parameters of the reactor, and rapidly realizing the successful startup of the urban sewage anaerobic ammonium oxidation biological autotrophic denitrogenation reactor. The method applies a new discovery in science of quick startup of the reactor implementing a simple process of anaerobic ammonium oxidation biological autotrophic denitrogenation to the high-efficiency and low-consumption denitrogenation treatment of urban domestic sewage for the first time, and has the advantages of short startup period of the reactor, stable system operation, excellent effects of sewage disposal and low cost.

Description

Technical field [0001] The invention belongs to the field of urban sewage treatment and resource utilization. Specifically, it relates to a method dedicated to rapid startup of a municipal sewage anaerobic ammonia oxidation biological auto-oxygen denitrification reactor under normal temperature conditions. Background technique [0002] The traditional nitrification / denitrification biological denitrification process consumes a lot of energy in the nitrification stage. If the proliferation of nitrifying bacteria during the nitrification process is not considered, it will oxidize 1g of ammonia nitrogen (NH 4 + -N) is nitrate nitrogen (NO 3 - -N) will consume 4.57gO 2 , 7.14g alkalinity (with CaCO 3 Calculated); high carbon source demand in the denitrification stage, reducing 1gNO 3 - -N requires 2.86g of biodegradable COD as a hydrogen donor. At present, the C / N of urban domestic sewage is low. The biggest problem faced by biological denitrification treatment is insufficient carb...

Claims

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Application Information

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IPC IPC(8): C02F3/28
Inventor 王俊安李冬张杰
Owner BEIJING UNIV OF TECH
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