Upward-flow biological aerated filter

A technology of biological aerated filter and biological filter, which is applied in the direction of sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. Pond removal effect, hazards of biological aerated filter, etc., to achieve uniform flushing intensity, save flushing water and air volume, and shorten flushing time
CN101734787AInactive Publication Date: 2010-06-16大连恒基新润水务有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
大连恒基新润水务有限公司
Publication Date
2010-06-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an upward-flow biological aerated filter, which is provided with a biofilter (10). The filter is characterized in that the biofilter (10) is separated into a plurality of sub-grid areas (6) equal in size through baffles (8), and each sub-grid area (6) is correspondingly provided with an independent flushing device. By adopting a sub-grid structure, the filter and a gas-water system can be arranged to be a plurality of units, and the bottom of the filter is provided with the independent flushing devices to flush sub-grids one by one so as to shorten flushing time, save water and gas for flushing and ensure better flushing effects. The filter has the advantages of improving flushing efficiency, ensuring uniform flushing intensity, maintaining biofilm activity, preventing blockage and improving the production efficiency of the biological aerated filter.
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Description

Technical field:

[0001] The invention relates to an internal structural form of an aerated biological filter for sewage treatment, in particular to an upward flow aerated biological filter for improving flushing efficiency and effect. Background technique:

[0002] The biological aerated filter is structurally divided into a buffer water distribution area, a supporting layer and a filter layer, an outlet area and an outlet tank. The sewage to be treated flows into the buffer water distribution area from the pipeline. When the sewage flows into the filter material layer, it is purified by the microbial film attached to the filter material and then discharged. The function of the buffer water distribution area is to make the sewage evenly flow through the cross section of the filter pool. The sewage to be treated enters the filter tank, and at the same time, the air (oxygen source) required for the metabolism of the microbial film is supplied by the blower, and the microbial ...

Claims

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