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Biological reactor of internal circulating and double filtering

A technology of bioreactor and double filtration, which is applied in the direction of sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve the constraints of wide application of biological aerated filter, poor backwash effect, and effluent water quality Not advanced question

Inactive Publication Date: 2009-06-03
魏刚 +2
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In the field of sewage treatment, compared with the activated sludge method or membrane method with other fillers, the biological aerated filter has the advantages of strong treatment capacity, good treatment efficiency, reasonable bacterial structure, and little influence by temperature, etc., but the traditional aeration Biological filters are prone to short flow or channel flow in the filter material layer. After a period of operation, due to the aging and shedding of the biofilm, the quality of the effluent water is not high, and the impact load resistance is not very good. When dealing with high-concentration organic wastewater, filtration will occur. There are problems such as material compaction and poor backwashing effect, and problems such as unstable effluent quality when treating low-concentration organic wastewater, and these shortcomings directly restrict the wide application of biological aerated filters in the field of sewage treatment

Method used

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  • Biological reactor of internal circulating and double filtering
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Embodiment Construction

[0018] Such as figure 1 , figure 2 As shown, an internal circulation double filtration bioreactor is composed of a tank body 1, a water distribution chamber 2, a supporting plate 3, a supporting layer 4, a filter material layer 5, and a circulating aerator 6, etc. The pool body 1 can be square or round, and square is generally used. Circulation aerator 6 can select 2, 3, 4, 5, 6 or 8 etc. for use, and this mode adopts 4. The backwash water distribution pipe 7 is firmly connected with each distributor 8 in the water distribution chamber 2, and each circulation aerator 6 is connected with a distributor 8, and the support plate 3 is fixed on the pool wall or the bottom of the pool, and there is a Bar holes or round holes. The support layer 4 is composed of pebbles or porcelain balls and is located on the support plate 3. The air flow pulse loosening tube 9 is arranged in the support layer 4. The filter material layer 5 is on the support layer 4. The filter material layer 5 ca...

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Abstract

A bioreactor with internal with internal circulation and dual filters for treating sewage is composed of water distributing chamber with water distributor, bearing plate, bearing layer, fitlering layer and cyclic aerating cylinder with filter-water outlet unit. The sewage is circulating through said water distributor, cycle aerating cylinder and filter layer, and is filtered by filter layer and the filter-water outlet unit.

Description

technical field [0001] The invention relates to sewage treatment equipment or devices, in particular to an internal circulation double-filter aerated biological filter reactor. Background technique [0002] In the general biological aerated filter in the prior art, a water distribution chamber is arranged at the bottom of the filter, a supporting plate is arranged on the water distribution chamber, a supporting layer is arranged on the supporting plate, filter material is placed on the supporting layer, and the aeration pipe is arranged on the lower part of the filter. The water body of the biological aerated filter operates in three ways: upward flow, downward flow and lateral flow. The usual use is upward flow, and the backwash generally adopts a large resistance water distribution method or a medium resistance water distribution method of the filter head. [0003] In the field of sewage treatment, compared with the activated sludge method or other membrane methods filled...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02C02F3/10
CPCY02W10/10
Inventor 魏刚许敏江奇志
Owner 魏刚
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