Soft-filler upward flow BAF (biological aerated filter)
A technology of aerated biological filter and soft filler, applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. Inorganic filter materials have problems such as large weight, which can achieve the effect of variable voids, good biological adhesion and high volume load.
Inactive Publication Date: 2010-06-30
大连恒基新润水务有限公司
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Problems solved by technology
Among them, the inorganic filter material has the disadvantages of heavy weight and difficulty in controlling the uniformity of the filter material.
Although soft packing can solve the above problems, it can only be used in plug-flow sewage treatment tanks, and it is placed vertically, so its application range is limited
Method used
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Embodiment Construction
[0008] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0009] Such as figure 1 As shown, a kind of soft filler upflow biological aerated filter, its filter device is provided with supporting layer 1, is provided with inclined soft biological filler layer 2 on supporting layer 1, the inclination of soft biological filler layer 2 The angle is 15 to 30 degrees from the vertical.
[0010] The soft packing layer is in the upflow biological aerated filter, and the four corners are fixed and inclined at a certain angle. It can cut the upward sewage flow, so that the sewage and the biofilm can fully contact, so as to ensure that all the sewage can contact the filler, so that all the sewage can be treated.
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The invention discloses a soft-filler upward flow BAF (biological aerated filter) which has a supporting layer (1) in a filtering device. The invention is characterized in that an oblique soft biological filler layer (2) is arranged on the supporting layer (1); the soft biological filler layer has the advantages of large surface area, high volume load of removing organic matters, good biological adhesiveness, changeable interspace, uneasy blocking, strong adaptability, low price, simple assembly and convenient management; the oblique soft biological filler layer can cut off the upward sewage flow and ensure the sewage to be fully contacted with a biological film, in this way, all sewage can be ensured to be contacted with the filler and to be treated.
Description
Technical field: [0001] The invention relates to an aerated biological filter for upward flow sewage treatment, in particular to an aerated biological filter with a soft packing layer. Background technique: [0002] There are many fillers used in the biological aerated filter, and the requirement for the filler is that it has a large porosity, can absorb more biomass, and has a suitable density. At present, most of the biological aerated filters use inorganic filter materials and organic filter materials, and organic fillers are divided into hard fillers and soft fillers. Among them, the inorganic filter material has the disadvantages of heavy weight and difficulty in controlling the uniformity of the filter material. Although soft fillers can solve the above problems, they are generally only used in plug-flow sewage treatment tanks, and they are placed vertically, so their application range is limited. Invention content: [0003] Aiming at the above-mentioned shortcomin...
Claims
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IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 李兴也
Owner 大连恒基新润水务有限公司