Novel fluidized bed biofilm carrier

Abstract

The invention discloses a novel fluidized bed biofilm carrier. The novel fluidized bed biofilm carrier comprises a hollow cylinder which is obliquely arranged, wherein the hollow cylinder is internally provided with a coaxial annular cylinder; the hollow cylinder and the annular cylinder are connected by rib walls; the rib walls are uniformly distributed by taking the circle center of the hollow cylinder as a central annular array; a cell chamber is enclosed by the adjacent rib walls, the hollow cylinder and the annular cylinder. The annular chamber is internally provided with cell chambers which are divided by the rib walls. The vertical inclined angle theta of the hollow cylinder is 10-30 degrees, preferably theta is 15 degrees. Saw teeth are arranged on the surface of the outer circumference of the hollow cylinder. According to the novel fluidized bed biofilm carrier, the cell chambers in the biofilm carrier are equivalent to a plurality of rooms so as to provide a large-area optimal environment for producing microorganisms; the inclined degree design is good for metabolism of the microorganisms and is good for growing and releasing the microorganisms.

Description

technical field [0001] The invention relates to a fluidized bed biofilm carrier, in particular to a novel fluidized bed biofilm carrier whose structure is improved to maximize the specific surface area and whose true density is close to that of water after film formation. Background technique [0002] At present, the power consumption of similar fluidized bed processes is mainly concentrated on aeration. The media used in ordinary fluidized beds are mostly volcanic rocks, gravel, natural zeolite, perlite, quartz sand, anthracite, activated carbon, ceramsite, etc., density All of them are larger than water, so that the power consumed for complete fluidization is large, and post-processing and recycling are difficult and costly. [0003] Similar to Chinese patent CN102942284A, a biological fluidized bed carrier and a method for treating wastewater, it is proposed to use coke powder as a raw material for process treatment, so that the carrier has an irregular shape, a rough sur...

AI Technical Summary

Problems solved by technology

[0002] At present, the power consumption of similar fluidized bed processes is mainly concentrated on aeration. The media used in ordinary fluidized beds are mostly volcanic rocks, gravel, natural zeolite, perlite, quartz sand, anthracite, activated carbon, ceramsite, etc., density All of them are larger than water, which consumes a lot of power to make them fully fluidized, and the post-processing and recycling are difficult and costly

[0003] Similar to Chinese patent CN102942284A, a biological fluidized bed carrier and a method for treating wastewater, it is proposed to use coke powder as a raw material for process treatment, so that the carrier has an irregular shape, a rough surface, and a large specific surface area. The improvement of the medium still cannot get rid of the defects that it is not easy to recycle, and the specific gravity of the film is greater than that of water, and it settles in the water, so that the power consumed by the carrier to move and vulcanize in the reactor is relatively large

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