Anaerobic ammonia oxidation sewage autotrophic nitrogen removal device and method based on pulse aeration
An anammox and autotrophic denitrification technology, applied in the field of anammox sewage autotrophic denitrification device, can solve the problems of slow growth rate of Anammox bacteria, large fluctuation of influent water, difficult to maintain proportional relationship, etc. The effect of ensuring water quality stability, ensuring effluent water volume, and increasing the ability to resist shock loads
Pending Publication Date: 2020-10-02
KUNMING DIANCHI WATER TREATMENT CO LTD
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However, in the actual integrated Anammox process flow, due to the slow growth rate of Anammox bacteria and large fluctuations in the influent, the NH in the reaction 4 + -N : NO 2 - -N : NO 3 - The ratio of -N is difficult to maintain 1:1.31:0.22, and it can inhibit the functioning microorganisms. It is a technical difficulty for its mainstream application to treat low-ammonia-nitrogen urban sewage systems and large fluctuations in sewage
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the usual meanings understood by those skilled in the field of the present invention. "First", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words m...
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The embodiment of the invention provides an anaerobic ammonia oxidation sewage autotrophic nitrogen removal device and method based on pulse aeration, and relates to the technical field of sewage treatment. The anaerobic ammonia oxidation nitrogen removal device based on pulse aeration comprises a pulse aeration control system, a nitrosation reaction system and an anaerobic ammonia oxidation reaction system. The pulse aeration control system comprises an automatic control system, and an NH4<+> monitor, a DO monitor and an NO2-N/NO3-N integrated monitor which are connected with the automatic control system. The nitrosation reaction system comprises a nitrosation reaction tank, an aeration disc, an air volume adjusting valve, a fan and an air pipe. The anaerobic ammonia oxidation reaction system comprises an anaerobic ammonia oxidation reaction tank, a stirrer, a sludge discharge pipe, a water outlet pipe, an exhaust pipe and a heating device. The automatic control system is also connected with the air volume adjusting valve and the fan. The automatic control system is used for controlling the concentration ratio of NH4<+> to NO2-N in the sewage in the nitrosation reaction tank by controlling the gas quantity regulating valve and/or the fan to adjust the aeration quantity of the aeration disc according to the concentrations of NH4<+>, NO2-N/NO3-N and DO.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an anaerobic ammonium oxidation sewage autotrophic denitrification device and method based on pulse aeration. Background technique [0002] Anaerobic ammonium oxidation (Anammox) process has broad application prospects in the field of wastewater biological nitrogen removal due to its advantages of high efficiency and low consumption. According to the reaction principle of the Anammox process, the nitrification process is controlled in the short-range nitrification stage, and the NO produced by nitrification 2 - -N and remaining NH 4 + -N is metabolized to N by Anammox bacteria 2 . Based on this reaction principle, the Anammox process can be divided into a separate process and an integrated process. Separate processes, such as the Sharon-Anammox process, enable short-range nitration and Anammox reactions to be carried out in different reactors; integrated processes,...
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IPC IPC(8): C02F3/30
CPCC02F3/302C02F2209/14C02F2209/15
Inventor 吴毅晖吴光学潘国强林阳郭昉华锐李天乐马方欧阳兆丰
Owner KUNMING DIANCHI WATER TREATMENT CO LTD
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