Anaerobic ammonia oxidation device for pig breeding wastewater treatment and application method

Abstract

The invention provides an anaerobic ammonia oxidation device for pig breeding wastewater treatment and an application method. The anaerobic ammonia oxidation device comprises an anaerobic zone, a pH stable mixing zone and an ammonia oxidation zone, wherein the anaerobic zone is internally provided with a first water inlet and distribution pipe, an aerobic backflow water distribution pipe, an ascending flow velocity stable backflow water distribution pipe and an anaerobic biological filler, and the outside of the first water inlet and distribution pipe is connected with a water inlet device. According to the invention, the COD removal efficiency of anaerobism can be improved, deamination in the anaerobic process is realized, the cost is relatively low, and different pollutant factors in wastewater can be subjected to regional key degradation in different regions; and through methods of stabilizing the pH value, refluxing and the like, the pH value of ammoxidation inlet water is controlled, the quality of the inlet water and the quantity of the inlet water are stabilized, and the impact load resistance of ammoxidation is improved, so that the device is kept in an environment suitable for growth and reproduction of anaerobic ammoxidation bacteria, and finally, the aims of improving the COD removal efficiency and efficiently removing ammonia in the anaerobic process are fulfilled.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an anaerobic ammonium oxidation device and an application method for pig breeding wastewater treatment. Background technique [0002] Anammox bacteria are a class of bacteria belonging to Planctomycetes, including (Candidatus Brocadia), (Candidatus Kuenenia) and (Candidatus Scalindua) ("Anammoxoglobus) genera. They have not been successfully isolated to pure strains so far, so they have not yet been officially obtained. Nomenclature and classification. They can convert ammonium ions (NH 4+ ) is oxidized to nitrogen with nitrite (NO2-): NH 4+ +NO 2- →N 2 +2H 2 O,ΔGo=-357kJ mol-1 They are of great significance to the global nitrogen cycle and are also important bacteria in sewage treatment. The world's first Anammox demonstration project was successfully constructed and put into operation in Dokhaven Sewage Treatment Plant in 2002. In China, the No. 4 Sewage Treat...

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Problems solved by technology

[0012] Aiming at the deficiencies of the prior art, the present invention provides an anaerobic ammonium oxidation device and application method for the treatment of pig breeding wastewater, which solves the problem of high difficulty in the treatment of pig breeding wastewater in the prior art, high treatment investment costs, and the urgent need for anaerobic ammonium oxidation Oxidation technology is an environmentally friendly technology with low investment cost and low operating cost to solve the problem of wastewater treatment

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