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Device and method for performing aerobic organic matter transfer for endogenous denitrification coupled anaerobic ammoxidation two-stage type advanced nitrogen removal

An endogenous denitrification and anaerobic ammonium oxidation technology, which is applied to the field of devices for deep denitrification by endogenous denitrification, can solve the problems of insufficient carbon source, oxidation consumption of organic matter, etc., so as to achieve full utilization, reduce treatment costs and reduce waste. Effect

Inactive Publication Date: 2018-05-01
BEIJING UNIV OF TECH
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Problems solved by technology

At the same time, it realizes the migration of organic matter in the form of microbial endogenous polymers under aerobic conditions, and couples the deep denitrification of endogenous polymers and the deep denitrification of anaerobic ammonia oxidation process to solve the problem of insufficient carbon sources and organic matter in traditional denitrification processes. The problem of oxidative consumption under aerobic conditions

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  • Device and method for performing aerobic organic matter transfer for endogenous denitrification coupled anaerobic ammoxidation two-stage type advanced nitrogen removal
  • Device and method for performing aerobic organic matter transfer for endogenous denitrification coupled anaerobic ammoxidation two-stage type advanced nitrogen removal

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Embodiment 1

[0028] In this implementation, the influent water is domestic sewage from a septic tank in a family area of ​​a university in Beijing, and the quality of domestic sewage is NO 2 - -N≤0.5mg / L, NO 3 - -N≤0.5mg / L; aerobic organic matter migration and endogenous denitrification SBR reactor sludge domestication stage, the internal total organic matter after water inflow is 280-350mg / L at the initial stage, and aerobic organic matter migration is used for endogenous in the later stage of stable operation During the denitrification coupling anaerobic ammonium oxidation two-stage deep denitrification process, the internal total organic matter after the initial water intake of the aerobic organic matter migration and endogenous denitrification SBR reactor is 480-550mg / L;

[0029] See the specific device figure 1 , according to the process step method in the summary of the invention. The present invention has no special requirements on temperature and pH.

[0030] The operation met...

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Abstract

The invention relates to a device and a method for performing aerobic organic matter transfer for endogenous denitrification coupled anaerobic ammoxidation two-stage type advanced nitrogen removal, and belongs to the technical field of sewage biological treatment. An aerobic organic matter transfer and endogenous denitrification SBR reactor is coupled with one anaerobic ammoxidation reactor. According to the advanced nitrogen removal method, sludge in the SBR reactor is subjected to aerobiotic and anoxic treatment with the aerobic to anaerobic ratio being (0.11-0.25), the drainage ratio is (0.4-0.6), excessive nitrate nitrogen concentration of the anoxic zone is maintained, and active sludge with endogenous accumulation and endogenous denitrification capability is domesticated and cultivated. Mud and water are separated after organic matters are converted and accumulated, supernatant enters the anaerobic ammoxidation reactor to realize partial nitrogen removal; and the water output byan anaerobic ammoxidation process is injected into the aerobic organic matter transfer and endogenous denitrification SBR to perform endogenous denitrification, and endogenous advanced nitrogen removal is finally realized. According to the endogenous advanced nitrogen removal, the problems that high organic matters in the anaerobic ammoxidation process are incomplete in inhibition of ammonia oxidizing bacteria and nitrogen removal.

Description

technical field [0001] A two-stage deep denitrification device and method for endogenous denitrification coupled with anaerobic ammonium oxidation for the migration of aerobic organic matter belongs to the field of sewage biological treatment. The invention is a device and technical method for efficiently transferring exogenous organic matter in sewage, strengthening endogenous accumulation, and being used for endogenous denitrification deep denitrification. Background technique [0002] In recent years, with the continuous upgrading of sewage treatment discharge standards, the requirements for the discharge of total nitrogen in sewage are getting higher and higher. How to denitrify deeply and with low energy consumption is the goal of technological innovation in sewage treatment. Due to the relatively insufficient carbon source (low C / N) in municipal sewage, denitrification is insufficient, and the practice of adding exogenous carbon source to improve denitrification capac...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/30C02F101/16
CPCC02F3/307C02F2101/16C02F2101/163C02F2101/166C02F2101/30C02F2203/006C02F2209/02C02F2209/04C02F2209/06C02F2209/22
Inventor 崔有为金常林
Owner BEIJING UNIV OF TECH
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