Anaerobic ammonium oxidation bacterium culture device and culture method

Abstract

The invention discloses an anaerobic ammonium oxidation bacterium culture device. The anaerobic ammonium oxidation bacterium culture device comprises a biological culture reactor and a heat preservation device for heat preservation of the biological culture reactor. The biological culture reactor comprises a reactor body and nonwoven fabric filler; the reactor body is a columnar cavity with two ends sealed by flanges, the bottom flange of the reactor body is connected with a water inlet, the top flange of the reactor body is connected with an exhaust port, and the upper portion of the reactor body is provided with a water outlet; the nonwoven fabric filler is filled in the reactor body. Compared with the prior art, the anaerobic ammonium oxidation bacterium culture device has advantages that the nonwoven fabric filler high in biocompatibility is suspended in the reactor and large in water contact area due to bunchy arrangement, anaerobic ammonium oxidation bacteria are prone to adhesion to the filler and less prone to loss along with water, and accordingly bacterium enrichment time is greatly shortened, the concentration of precipitated suspended solid is reduced, and slurry generation quantity is effectively decreased.

Description

technical field [0001] The invention relates to the technical field of sewage biological treatment, in particular to a culture device and a culture method for anammox bacteria. Background technique [0002] With the rapid development of social economy and increasingly serious environmental problems, the eutrophication problem caused by excessive nitrogen and phosphorus is becoming more and more prominent. The nitrogen and phosphorus discharge standards for sewage treatment in my country are also continuously improving. Control is also increasingly important. At present, the effluent of urban sewage treatment plants in my country must meet the first-class A standard in the urban sewage discharge standard, and the total nitrogen in the effluent is less than 15mg / L. [0003] Biological denitrification is a relatively mature and reliable method at present. The microorganisms responsible for denitrification are mainly nitrifying bacteria and denitrifying bacteria. In practical en...

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Problems solved by technology

[0005] Although domestic experimental cases for this process already exist, in the existing cases, the anammox bacteria reproduce slowly, the domestication period is long, and the cultivation equipment is cumbersome

Most of the existing anaerobic ammonium oxidation process still needs a relatively high concentration of activated sludge as the inoculation carrier, and it is operated in a stirring manner. At the same time, auxiliary equipment such as mud-water separation or sludge reflux is required, which seriously limits the application of this process. Effective promotion in actual engineering

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