Anti-cavitation microaerobic denitrification reactor

Abstract

The invention discloses an anti-cavitation microaerobic denitrification reactor, which comprises a denitrification reactor and a secondary sedimentation tank. A microporous aeration device and a water distribution pipe network are arranged at the bottom part of the denitrification reactor; a water inlet pipe is externally connected to the water distribution pipe network; a circulating water pipe is arranged outside the denitrification reactor; a circulating pump is arranged on the circulating water pipe; one end of the circulating water pipe is connected into the denitrification reactor; the other end of the circulating water pipe is connected to the water inlet pipe; a baffle plate for blocking air bubbles is arranged at a connecting position of the circulating water pipe and the denitrification reactor; a second water outlet is formed in the top part of the secondary sedimentation tank; a sludge recirculatory pipe is arranged between the denitrification reactor and the secondary sedimentation tank; one end of the sludge recirculatory pipe is connected to the bottom part of the secondary sedimentation tank; the other end of the sludge recirculatory pipe is connected into the denitrification reactor. The technical scheme is used for solving the problem that a carbon source and alkalinity need to be additionally supplemented due to a complex technological process in an existing sewage denitrification process.

Description

technical field [0001] The invention belongs to the technical field of organic wastewater treatment, and in particular relates to an anti-cavitation micro-oxygen denitrification reactor. Background technique [0002] Biological denitrification of sewage is a process in which nitrogenous compounds are converted into nitrogen and removed after ammonification, nitrification, and denitrification. The conversion of nitrogen in the treatment process mainly includes ammonification, nitrification and denitrification, wherein ammonification can be carried out under aerobic or anaerobic conditions, nitrification is carried out under aerobic conditions, and denitrification is carried out under anoxic conditions. conduct. Therefore, the general treatment process needs to set up corresponding reaction vessels to realize these stages. The conventional ammonia nitrogen treatment process has the following types: [0003] 1. Three-stage denitrification process, which separates organic matt...

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Problems solved by technology

[0007] Aiming at the above-mentioned technical problems, the present invention provides an anti-cavitation micro-oxygen denitrification reactor to solve the problems in the existing sewage denitrification process that the process flow is complicated and additional carbon source and alkalinity need to be supplemented. The cavitation micro-oxygen denitrification reactor does not have anoxic and aerobic separate reactors, so that the oxidation, nitrification and denitrification of organic matter can be carried out in the same reactor, and a baffle is installed at the same time to form an anti-cavitation effect

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