Module combination type microcirculation biological nitrogen removal reactor and method thereof

Abstract

The invention discloses a module combination type microcirculation biological nitrogen removal reactor and a method thereof. A main body of the reactor is a container body, the interior of the reactor is formed by combining a plurality of modules, and the reactor is provided with a distribution zone, a reaction zone and a separating zone from bottom to top in the vertical direction. The distribution zone comprises a lower circulation way, an up-flow guide chamber and a down-flow guide chamber, and a water inlet pipe, a water distribution pipe, an air inlet pipe, an aerator pipe, a mud pipe, a circulation separating supporting plate and a unit separating support plate are arranged. According to the module combination type microcirculation biological nitrogen removal reactor, direct-pipe type padding serves as an internal component, multiple microcirculation reaction units are built, the effective height-diameter ratio of the reactor can be improved, the hydraulics action of the reactor is improved, and the biological nitrogen removal reaction is accelerated; in the microcirculation reaction units, nitrous acid edges generate edge conversion, biological poison and basicity consumption caused by nitrous acid can be eliminated; according to the reactor, unit-module-reactor step-by-step integration is adopted, and manufacturing, transporting, assembling, disassembling, overhauling, dilatation according to needs and moving according to needs of the reactor are facilitated.

Description

technical field [0001] The invention relates to an autotrophic denitrification reactor, in particular to a modular combined microcirculation biological denitrification reactor and a method thereof. Background technique [0002] In recent years, with the improvement of people's living standards, the requirements for the ecological environment of human settlements are also getting higher and higher. However, the massive discharge of industrial, agricultural and domestic sewage has caused eutrophication of water bodies and affected the improvement of the ecological environment of human settlements. Ammonia nitrogen is one of the important causes of water eutrophication. Although a lot of manpower, material resources and financial resources have been invested in recent years, the eutrophication of water bodies has not been significantly improved. According to the "2015 Bulletin on the State of the Environment in China", among the 61 lakes (reservoirs) that carry out nutritiona...

AI Technical Summary

Problems solved by technology

However, due to the slow growth of ammonia oxidizing bacteria and anammox bacteria and low cell yield, efficient denitrification reactors need to effectively retain functional bacteria

In a circulating reactor with a large aspect ratio, organisms tend to agglomerate into granular sludge

Even if this type of reactor is used, it has not been used in low-concentration ammonia nitrogen wastewater

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