Efficient active flowing bed purifier

Abstract

An efficient active flowing bed purifier comprises a cylinder body, wherein the center of the upper part of the cylinder body is provided with a washer and a sand distributing device; the washer comprises the cylinder body, the upper end of the cylinder body is sealed, the lower end of the cylinder body is open, the inner wall, close to the lower end, of the cylinder body is provided with a plurality of circles of guide plates inclined downwards, the top end of the cylinder body is vertically downwards provided with a sand blocking column, the tail end of the sand blocking column is provided with a reflective plate for a water surface, and a drain outlet hose connecting pipe is arranged on the cylinder body at one side of the reflective plate, and extends out of the cylinder body of the purifier; the sand distributing device comprises a center pipe and a sand lifting pipe arranged in the center pipe, the upper end of the center pipe extends into the cylinder body of the washer, the outer surface of the extending-in end is provided with a plurality of circles of guide plates inclined downwards, the guide plates are staggered with the guide plates on the inner wall of the cylinder body, a circle of guide plates inclined downwards is arranged on the center pipe wall below the cylinder body of the washer, the diameters of the guide plates are larger than those of the guide plates arranged on the outer surface of the extending-in end, and the tail end of the center pipe extends into a pedestal.

Description

technical field [0001] The invention relates to a water quality purifier for advanced treatment of urban sewage, in particular to a high-efficiency active fluidized bed purifier. Background technique [0002] The selection of urban sewage treatment process and treatment structures and equipment types is an important part of sewage treatment design. The main basis for determining the sewage treatment process is the degree of treatment that the sewage needs to achieve, and the degree of treatment depends on the whereabouts of the effluent after treatment. If the treated effluent is discharged into the water body, the degree of sewage treatment should not only make full use of the self-purification ability of the water body, but also prevent the water body from being polluted. If the treated effluent is reused for industrial enterprises or urban construction, two situations should be considered: direct reuse; and reuse after some supplementary treatment. Sewage treatment gene...

AI Technical Summary

Problems solved by technology

3. Combined method of physical chemistry and biology: Since some pollutants in the biological secondary effluent of the sewage plant are still high and the components are relatively complex, in the process of advanced treatment, no matter whether it is a separate physical and chemical method or a single biological method It is difficult to make the effluent meet the national reuse water standard. Generally, a single process has poor impact load capacity. Sometimes, in order to improve the effluent quality, the cost will even increase several times.

However, there are certain problems in the above various process technologies in terms of material strength, service life, anti-pollution ability, flux requirements, cleaning process, etc.

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