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Rapid start method for anaerobic ammonia oxidation reactor

An anaerobic ammonium oxidation, fast-start technology, applied in chemical instruments and methods, anaerobic digestion treatment, water/sludge/sewage treatment, etc. Improve denitrification processing capacity, enhance process stability, and promote growth and retention effects

Active Publication Date: 2016-09-07
HEFEI UNIV OF TECH
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  • Application Information

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Problems solved by technology

However, there are many problems in the anammox process, such as the slow growth rate of anammox bacteria, long generation time, insufficient inoculation mud source and high price. It is difficult to apply in practical engineering under the condition of

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  • Rapid start method for anaerobic ammonia oxidation reactor
  • Rapid start method for anaerobic ammonia oxidation reactor
  • Rapid start method for anaerobic ammonia oxidation reactor

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Embodiment Construction

[0031] The following non-limiting examples can enable those skilled in the art to understand the present invention more fully, but do not limit the present invention in any way.

[0032] 1. Implementation overview

[0033] The dynamic membrane bioreactor is used as the reaction device, and the anaerobic activated sludge is used as the inoculum. It is operated continuously under the condition of anaerobic shading, and nitrogen-containing wastewater is introduced to domesticate and cultivate anammox bacteria to remove ammonia nitrogen in the wastewater. . After 32 days of operation, the quality of the effluent treated by the anammox reactor is as follows: NH 4 + -N≤1.5mg / L, the removal rate is over 95%; NO 2- -N≤1mg / L, the removal rate is above 98%, and the rapid start-up of the anammox reactor has been successfully realized.

[0034] 2. Reactor design

[0035] The anaerobic ammonium oxidation reactor is a combination of an external dynamic membrane and a bioreactor. The dy...

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Abstract

The invention discloses a rapid start method for an anaerobic ammonia oxidation reactor. The rapid start method comprises the following steps: by using a dynamic membrane bioreactor and by taking aerobic sludge and / or anaerobic sludge as inoculums, controlling the concentration of ammonia nitrogen and nitrite nitrogen of fed water, feeding a nutrient solution, filtering off the water by using a dynamic membrane, and enabling the reactor to continuously operate for at least 30 days, thereby achieving rapid domestication and enrichment of anaerobic ammonium oxidation bacteria inside the bioreactor. The rapid start method is applicable to anaerobic ammonia oxidation denitrification treatment on municipal sewage and industrial wastewater, and has the advantages of rapid start, high treatment efficiency, stable system operation, good effluent effect, low cost and the like.

Description

1. Technical field [0001] The invention relates to a quick start-up method of an anaerobic ammonium oxidation reactor, which belongs to the field of sewage denitrification treatment. 2. Background technology [0002] Ammonia nitrogen has become one of the binding indicators for pollutant emission reduction in my country's water environment. How to efficiently reduce ammonia nitrogen emissions is an important challenge for my country's water environment protection. The traditional biological denitrification process is mainly based on nitrification and denitrification technology, but it generally has problems such as high energy consumption, low denitrification efficiency, and insufficient carbon source. In recent years, with the discovery of the anammox denitrification pathway, the anammox process has attracted the attention of many scholars at home and abroad because of its unique characteristics of low energy consumption and high-efficiency denitrification. Foreign sewage ...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F3/34C02F101/16
CPCC02F3/2853C02F3/34C02F2101/16
Inventor 王伟徐步德周婧于瑞馨蔡静席慕华吴奔腾
Owner HEFEI UNIV OF TECH
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