Sealed sewage treatment device adopting nitrifying bacteria for nitrogen removal

Abstract

The invention discloses a sealed sewage treatment device adopting nitrifying bacteria for nitrogen removal. The sealed sewage treatment device comprises a water tank and is characterized in that multiple partition plates are arranged in the water tank and divide the water tank into multiple treatment cavities, an oxidation cavity is formed in one end of the water tank, air injection drums are arranged at the bottom of the oxidation cavity, a sealed tank is fixedly mounted at the top of the oxidation cavity, an upper nitrifying bacteria filling plate and a lower nitrifying bacteria filling plate are arranged on the inner wall of the sealed tank, a water inlet pipeline is arranged at the bottom of the sealed tank, a filter plate is arranged at the bottom of the sealed tank, multiple water outlets are formed in the side wall of the filter plate, the water inlet pipeline is communicated with a sewage collection tank at the bottom, an oxygen supply pipeline is arranged on the side wall of the sealed tank and connected with an oxygen ejector, and a water through port is formed in the side wall of the oxidation cavity. The sealed sewage treatment device is simple in structure, multiple sewage purification operation items can be finished once, the efficiency of degradation of nitrogen and phosphorus in the sewage in an anaerobic zone is increased, and the purification efficiency is high.

Description

technical field [0001] The invention relates to an environmental protection device, in particular to a sealed type nitrifying bacteria nitrogen removal sewage treatment device. Background technique [0002] With the development of the economy, the widespread use of pesticides and chemical fertilizers and the increase in the discharge of rural domestic sewage, a large amount of nitrogen and other biological nutrients are continuously discharged into rivers and lakes, which accelerates the degree of eutrophication of water bodies. At present, my country's rural sewage discharge is large and the effective treatment rate of sewage is low. The water area is seriously polluted, and the treatment is difficult to meet the national standard. Although our country has taken a lot of measures to solve the problem of rural water pollution, there are still some problems in terms of technical equipment, such as high infrastructure construction cost and operating cost, and treatment efficien...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the sewage treatment system occupies a large area and requires a lot of manpower and financial resources to build infrastructure, and the traditional sewage treatment system has complicated processes and many processes, and cannot automatically complete the treatment at one time

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