CN202912758U - Combined aeration biological filter pond - Google Patents
Combined aeration biological filter pond Download PDFInfo
- Publication number
- CN202912758U CN202912758U CN2012202596114U CN201220259611U CN202912758U CN 202912758 U CN202912758 U CN 202912758U CN 2012202596114 U CN2012202596114 U CN 2012202596114U CN 201220259611 U CN201220259611 U CN 201220259611U CN 202912758 U CN202912758 U CN 202912758U
- Authority
- CN
- China
- Prior art keywords
- filter pond
- pond body
- aeration biological
- biological filter
- bearing frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
A combined aeration biological filter pond comprises a filter pond body, wherein a buffering water distribution region is formed at the lower part in the filter pond body; the bottom of the filter pond body is connected with a water distribution pipe and a gas distribution pipe; a bearing frame is arranged above the buffering water distribution region; an aerator is arranged at the bottom of the bearing frame; and a primary filtering material layer and a secondary filtering material layer are arranged on the bearing frame in the filter pond body from bottom to top. Compared with the prior art, the combined aeration biological filter pond provided by the utility model has the advantages as follows: the flushing period is short, a mixed layer cannot be caused during flushing, reasonable layering formed by microorganisms cannot be broken and the quality of treated water is good.
Description
Technical field
The utility model relates to a kind of waste disposal plant, particularly relates to a kind of efficient that can improve BAF, makes the water quality after the processing better make up BAF.
Background technology
Microorganism cells almost can adhere to by any suitable carrier surface in water surrounding securely, and Growth and reproduction thereon, by in the cell outside the born of the same parents that stretch in the extracellular polymer make microorganism cells form fibrous tangled structure, just be referred to as microbial film.
Filtrate is biomembranous carrier, has simultaneously the effect of holding back suspended matter concurrently, and therefore, the carrier filtrate is the key of BAF, directly affects the usefulness of BAF.Simultaneously, the expense of carrier filtrate accounts for again larger specific gravity in the capital cost of aeration biological filter chamber treatment system, so filler is related to the reasonableness of system.
The carrier filtrate that uses in the BAF is a lot, is that porosity is large for the requirement of filtrate, can adsorb more biomass, and density is suitable, is conducive to gas, water backwashing.
The operation of filtrate level pairing BAF has material impact.The filtrate grating not only affects water outlet BOD
5And the concentration of TSS (total suspended matter), and affect rate of growth and back flushing pitch time of head loss.Particle diameter of filter medium is less, and head loss is larger, and the recoil interval is shorter.Packing material size is less, and effluent quality is better.But particle diameter of filter medium is less, and the solid capacity is also less, when sewage TSS concentration is high, can not use particle diameter less than the filler of 4.0～6.0mm, because cause like this back flushing too short pitch time.The Status of development of disposing of sewage from the biological filter, filtrate choose outbalance.Select a kind of good filter grating very crucial.Microorganism on the filtrate in the biological filter is actually layering, and the function of the microorganism of different layers is different, is what Each performs its own functions; The unit weight of filtrate in the past generally all is consistent, and mixed layer just easily occurs in flushing like this, will upset the rational layering that microorganism has formed, and the stage of a recovery just must be arranged after the flushing, will affect like this processing of sewage.
The utility model content
The purpose of this utility model is exactly defective and the deficiency that exists for overcoming above-mentioned prior art, and a kind of combination BAF is provided.
The technical scheme that adopts is:
A kind of combination BAF, comprise the filter tank body, bottom in the body of filter tank is the buffering water distributing area, the bottom of filter tank body is connected with water distributor and gas distribution pipe, the top of buffering water distributing area is provided with support bracket, the bottom of support bracket is provided with aerator, is provided with the first-level filtering bed of material and secondary filter material layer from bottom to top on the support bracket in the body of filter tank.
With the filtrate of different specific weight, with the larger filtrate of proportion, the upper strata can be arranged four to five layers even more multi-layered with the lighter filtrate of proportion in lower floor the combination BAF.Particle diameter of filter medium is more consistent.Mixed layer just can not occur in flushing like this, just can not upset the rational layering that microorganism has formed, just can not affect the processing of sewage after the flushing.
The utility model compared with prior art, the cycle of flushing is short, and mixed layer just can not occur in the time of flushing, can not upset the rational layering that microorganism has formed, the quality of processing is good.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The technical scheme that adopts is:
A kind of combination BAF, comprise filter tank body 1, bottom in the filter tank body 1 is buffering water distributing area 2, the bottom of filter tank body 1 is connected with water distributor 3 and gas distribution pipe 4, the top of buffering water distributing area 2 is provided with support bracket 5, the bottom of support bracket 5 is provided with aerator 6, is provided with the first-level filtering bed of material 7 and secondary filter material layer 8 from bottom to top on the support bracket 5 in the filter tank body 1.
Claims (1)
1. one kind is made up BAF, comprise the filter tank body, it is characterized in that the bottom in the body of described filter tank is the buffering water distributing area, the bottom of filter tank body is connected with water distributor and gas distribution pipe, the top of buffering water distributing area is provided with support bracket, the bottom of support bracket is provided with aerator, is provided with the first-level filtering bed of material and secondary filter material layer from bottom to top on the support bracket in the body of filter tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202596114U CN202912758U (en) | 2012-05-29 | 2012-05-29 | Combined aeration biological filter pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202596114U CN202912758U (en) | 2012-05-29 | 2012-05-29 | Combined aeration biological filter pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202912758U true CN202912758U (en) | 2013-05-01 |
Family
ID=48161088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202596114U Expired - Fee Related CN202912758U (en) | 2012-05-29 | 2012-05-29 | Combined aeration biological filter pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202912758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176820A (en) * | 2014-09-10 | 2014-12-03 | 徐东海 | Noise-reduction aeration biological filter tank |
| CN105217785A (en) * | 2015-09-16 | 2016-01-06 | 杭州鼎隆环保科技有限公司 | Multimedium baffled biological aerated filter and application thereof |
-
2012
- 2012-05-29 CN CN2012202596114U patent/CN202912758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176820A (en) * | 2014-09-10 | 2014-12-03 | 徐东海 | Noise-reduction aeration biological filter tank |
| CN105217785A (en) * | 2015-09-16 | 2016-01-06 | 杭州鼎隆环保科技有限公司 | Multimedium baffled biological aerated filter and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20160529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |