Spiral-flow type biochemical reaction device for nitrogen removal in plateau sewage treatment and equipment thereof

Abstract

The invention provides a plateau sewage treatment denitrification spiral-flow type biochemical reaction device and equipment thereof. The biochemical reaction device comprises a tank body, an aeratorand a central guide cylinder; wherein a water outlet pipe is arranged at the upper end of the tank body, a water inlet pipe is arranged at the lower end of the tank body, a return pipe is arranged onthe water outlet pipe, and the return pipe is communicated with the lower end in the tank body; the aerator is flatly laid in the middle in the tank body, and the tank body is divided into an upper aerobic zone and a lower anoxic zone through the aerator; an aeration fan is arranged outside the tank body; the aeration fan is connected with an aerator through a flow guide pipe; the central guide cylinder is arranged in the tank body, and the central guide cylinder is arranged in a middle area below the aerator. The device is simple in structure, high in denitrification efficiency, high in oxygenation efficiency, small in occupied area, low in investment, short in engineering construction period, high in practicability and very suitable for being applied to plateau areas.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a denitrification swirling biochemical reaction device and equipment for plateau sewage treatment. Background technique [0002] With the development of industrial and agricultural production and the improvement of people's living standards, the discharge of nitrogen-containing organic matter has increased sharply. In order to solve this problem, a large number of wastewater biological treatment projects have emerged one after another. The amount of ammonia nitrogen and total nitrogen in the discharge water treated at the first stage is relatively high, and it is still a serious source of environmental pollution. Nitrogen pollution is extremely harmful. Nitrogen entering the water body can not only induce "eutrophication" of the water body and cause the disorder of the aquatic ecosystem, but also consume dissolved oxygen, cause the water body to be hypoxic, a...

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Problems solved by technology

Relatively speaking, biological denitrification technology has the advantages of less investment, simple operation, and easier treatment of secondary pollutants. However, most of the existing denitrification bioreactors have complex structures, high operating costs, and professional operating personnel. demanding questions

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