A kind of anaerobic ammonium oxidation reactor and its start-up method and operation method

Abstract

The embodiment of the invention relates to a starting method of an anaerobic ammonia oxidation reactor. The starting method includes the following steps that S1, the anaerobic ammonia oxidation reactor is inoculated with anaerobic ammonia oxidation sludge; S2, genetically engineered bacteria capable of generating anaerobic-ammonium-oxidation-bacterium alternating-current signal molecules are addedinto the anaerobic ammonia oxidation reactor; S3, the anaerobic ammonia oxidation reactor enters water. According to the starting method in the embodiment, a large amount of the signal molecules canbe obtained through a small quantity of genetically engineered bacteria, and the cost is greatly reduced; the application method is simple, and rapid starting of the anaerobic ammonia oxidation reactor can be achieved; as signal molecules are continuously provided in the running process of the reactor, the signal molecules AHLs can be applied to practical water treatment engineering.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to an anaerobic ammonium oxidation reactor and a start-up method and an operation method thereof. Background technique [0002] Anaerobic ammonium oxidation is an efficient and energy-saving denitrification water treatment process, which directly converts nitrous nitrogen and ammonia nitrogen into nitrogen gas under anaerobic conditions. This process can shorten the nitrification process, remove nitrogen more efficiently, and does not require additional carbon sources, and can reduce the amount of excess sludge and greenhouse gas emissions. However, the slow growth of the anammox bacteria group is sensitive to environmental fluctuations, which leads to a long start-up time of the anammox reactor. This bottleneck problem affecting the application of the process needs to be solved. Bacterial AC mechanism to rapidly start an anammox reactor. [0003] Bacterial com...

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Problems solved by technology

[0004] In the prior art, there are studies to increase the activity and proliferation rate of the anammox bacteria group by directly adding signal molecules AHLs from exogenous sources. The defect of this method is that the signal molecules AHLs are expensive and difficult to purchase, and the actual water treatment engineering On the one hand, it is difficult to start the anammox reactor, and on the other hand, it is also difficult to continuously supply AHLs during the operation of the reactor, which limits the application of AHLs in anammox water treatment and is difficult to apply to practical projects.

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