Warming oxygen type composite biological filter

Abstract

The invention discloses a warming oxygen type composite biological filter which comprises a heat preservation chamber, a biological trickling filter, a water distribution system, an aeration system and a heating system; the biological trickling filter is arranged in the heat preservation chamber, a filling filter material is arranged in the biological trickling filter, and the water distribution system is arranged at the top of the filling filter material; and aeration pipes of the aeration system penetrate through the interior of the filling filter material at equal intervals, the aeration system is connected with the heating system, and the bottom of the biological trickling filter is connected with a blow-off pipe. The aeration system and the heating system are arranged, so that a good oxygenation environment is formed in the biological trickling filter, good aerobic and temperature conditions are provided for growth and metabolism of aerobic microbial flora in the filter body, the problem of ventilation and heating is effectively solved, and the problems of relatively high electric energy consumption and equipment failure of the aeration system at the bottom of the filter body are avoided.

Description

technical field [0001] The invention relates to the technical field of biological filters, in particular to a temperature-increasing oxygen type composite biological filter. Background technique [0002] Biological filter is a biological treatment technology developed from primitive intermittent sand filter and contact filter based on soil self-purification and the practice of sewage irrigation. In the field of decentralized domestic sewage treatment in the future, biological filter technology will be widely used. The traditional biofilter technology usually operates by means of aeration at the bottom of the filter or dripping at the top of the filter. During use, the following problems are often encountered: [0003] Biological aerated filter usually adopts steel concrete tank or carbon steel tank body, and the tank body is filled with filter material. The aeration system is usually fixed at the bottom of the tank to increase oxygen. It is very difficult to disassemble and...

AI Technical Summary

Problems solved by technology

[0003] Biological aerated filter usually adopts steel concrete or carbon steel tank body, the tank body is filled with filter material, and the aeration system is usually fixed at the bottom of the tank to increase oxygen. It is very difficult to disassemble and replace, and the filter material is easy to block and malfunction during operation; moreover, the air flow in the drip biofilter is poor, the gas exchange rate is slow, the oxygen environment in the filter is relatively poor, and the microbial film on the surface of the filter material The chance of exposure to oxygen is greatly reduced, and the gap of the filter material is easily blocked by bacterial film and sundries, resulting in poor treatment effect

In addition, under the low temperature conditions in winter in the northern region, the microbial activity decreases, and the efficiency of the filter to remove pollutants is greatly reduced.

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