Denitrifying filtering pool

Abstract

The invention relates to a denitrifying filtering pool. The denitrifying filtering pool comprises a filtering pool, wherein the filtering pool is provided with a clean water area, a filtering area anda precipitating area in sequence from top to bottom, wherein the filtering area comprises an upper-layer premise filtering area and a lower-layer denitrifying filler layer, and the denitrifying filler layer comprises a shell and a denitrifying filler filled in the shell; a water feeding component is arranged at the middle part of the precipitating area, and a slag discharging component is arranged at the bottom part of the precipitating area; a backwashing device is arranged above the clean water area. The denitrifying filtering pool has the beneficial effects that the occupied area is smalland the equipment use cost is low; the filtering area is not easily blocked, so that air blockage can be effectively prevented; a biological layer can be formed, so that adhesion of denitrifying bacteria is convenient and the benefit for decomposition of impurities in water is achieved.

Description

technical field [0001] The invention belongs to the technical field of water purification treatment, and in particular relates to a denitrification filter tank. Background technique [0002] With the development of social urbanization and the improvement of living standards, the environmental capacity is getting smaller and smaller, and people's requirements for the living environment are getting higher and higher, so the sewage discharge standards are becoming more and more stringent. How to make the pollutant content in the discharged water body lower has become a difficult problem for social development. [0003] Traditional denitrification filter tanks generally use quartz sand or ceramsite as the filter material to form a filter material layer, which continuously intercepts and absorbs suspended solids and a large number of denitrifying bacteria in the effluent water of the biochemical treatment process, thereby achieving filtration and denitrification. nitrification. ...

AI Technical Summary

Problems solved by technology

However, this filter material structure and backwashing method have obvious disadvantages, including that it is easy to cause oxygenation of falling water and affect the denitrification function (denitrification reaction is generally carried out in an anaerobic or anoxic environment), the filter layer is easily blocked, Poor recoil effect, large filter head loss, poor treatment effect, etc.

[0004] In addition, the traditional denitrification filter also needs to be equipped with multiple facilities and equipment, such as equipment rooms, clean water pools, waste water pools and other facilities, as well as clean water pumps, submersible sewage pumps, gas generators and other equipment, resulting in denitrification filter system Complicated operation, large footprint, easy clogging of the filter layer, high operation and maintenance costs, etc.

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