Integrated baffle-type autotrophic biological denitrification reactor

Abstract

The invention discloses an integrated baffle-type autotrophic biological denitrification reactor which comprises a reactor body, wherein the reactor body is provided with a first baffle plate; the first baffle plate divides the reactor body into a partial nitrification unit and an anaerobic ammoxidation unit; the upper end of the first baffle plate is connected with the top of the reactor body, and a gap is reserved between the lower end and the bottom of the reactor body; the anaerobic ammoxidation unit is divided into a biofilm area I, a biofilm area II, a particle sludge area, a second precipitation area and a second water outlet area from left to right; a second baffle plate is arranged between the biofilm area II and the particle sludge area; and a third baffle plate is arranged between the particle sludge area and the second precipitation area. According to the reactor disclosed by the invention, the coupling of a partial nitrification process and an anaerobic ammoxidation process is realized in a single reactor; and with the multi-level baffle plates, the flow path of the wastewater is prolonged, the effective reaction time is increased, and the biological withholding ability is enhanced.

Description

technical field [0001] The invention relates to an integrated baffle type autotrophic biological denitrification reactor. Background technique [0002] With the development of industrial and agricultural production and the improvement of people's living standards, the discharge of various types of wastewater has increased sharply, and the discharge standards have become increasingly strict, which puts forward higher requirements for wastewater treatment technology. At present, the discharge of high-ammonia-nitrogen wastewater such as landfill leachate and sludge digested supernatant is increasing day by day, and the biological treatment technology with microbial technology as the core occupies an irreplaceable position in the treatment of ammonia-nitrogen wastewater. Among them, the new denitrification process anaerobic ammonia oxidation has become one of the most popular wastewater denitrification processes due to its high efficiency and low consumption. [0003] As we all...

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Problems solved by technology

[0004] In order to overcome the disadvantages of large floor space and high infrastructure costs of existing separate reactors, the present invention provides an integrated baffled autotrophic biological denitrification reactor with small floor space and low infrastructure costs.

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