CN205294949U - High -efficient bological aerated filter - Google Patents
High -efficient bological aerated filter Download PDFInfo
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- CN205294949U CN205294949U CN201620020029.0U CN201620020029U CN205294949U CN 205294949 U CN205294949 U CN 205294949U CN 201620020029 U CN201620020029 U CN 201620020029U CN 205294949 U CN205294949 U CN 205294949U
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- 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
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Abstract
The utility model provides a high -efficient bological aerated filter, it is main includes cell body, water distribution system, gas distribution system, supporting layer, filter material layer, clear water district, superelevation district, backpurge system and play water system, water distribution system includes filter plate, filter and water distribution room, the outside gas supply system of gas distribution headtotail, backpurge system includes backwash trachea and backwash water pipe, go out the water system including going out mill weir weir plate, anti - flushed drainage tank, going out basin, outlet pipe and backwash drain pipe, it sets up the perforated plate to go out the mill weir weir plate, highly the equaling or be less than the cell body top surface of perforated plate. Utilize the perforated plate to the isolation of filter material, the height on filter material layer can increase 0.2m to about the 0.6m relatively to it utilizes filtering pond cell body effective volume, reinforcing sewage biochemical treatment, effectively prevents the effect that the filter material runs off to reach the high efficiency.
Description
Technical field
This utility model belongs to technical field of sewage, is specifically related to a kind of high-efficiency aeration biological filter tank.
Background technology
Existing BAF is to introduce the thought filtered in drinking water treatment on the basis of Biological Contact Oxidation Process and the aerobic waste water treatment process of one produced. The granule filter material of high-specific surface area it is filled with in BAF, with the carrier providing microbial film to grow, sewage flows through filter material layer from top to bottom or from lower to upper, filter material layer bottom is provided with blast aeration, air is reverse with sewage or contacts in the same direction, the biomembrane generation biochemical reaction making the Organic substance in sewage and filter material surface is degraded, and filtrate simultaneously works as physical filtering interception. Namely BAF can simultaneously work as the effect of Aeration tank, second pond and sand filter, so BAF rear portion does not set sedimentation tank, is realized the periodic duty in filter tank by gas and water backwash regeneration.
BAF is divided into ceramic grain filter filter tank and floating media filter, and this utility model is with ceramic grain filter filter tank for improving object.
According to biological aerated filter process design parameter in China Engineering Construction Standardization Association's standard " BAF engineering code (CECS265-2009) ": the height of filter media layer in ceramic grain filter filter tank is preferably 2.5m to 4.5m, clear water zone height is preferably 1.0m to 1.5m, and superelevation district is 0.5m. Relevant flushing water according to China Engineering Construction Standardization Association's standard " filter tank air-water flushing design discipline (CECS50) " gets rid of regulation: the filter tank of filter material layer microdilatancy during flushing, and rhone bottom surface should exceed the clear height on filter material layer surface should take 100mm; During flushing, filter material layer produces the filter tank expanded, and its rhone bottom surface should exceed the aspect 100mm to 150mm after expansion. This design height and effluent weir weir plate height are used for preventing filterins media run-off. Namely clear water zone height includes filtrate expansion height and anti-filterins media run-off height. Anti-filterins media run-off height not only reduces the filtrate filling rate of overall BAF, and can not definitely effectively prevent filterins media run-off.
Summary of the invention
This utility model provides a kind of high-efficiency aeration biological filter tank, and as a kind of improvement of tradition ceramic grain filter BAF, this high-efficiency aeration biological filter tank is relative to tradition BAF: the height of clear water zone reduces, and height of filter media layer increases;More efficient can utilize cell body dischargeable capacity, filterins media run-off can be prevented, the clearance of wastewater through organic matter is higher.
This utility model solves its technical problem and be the technical scheme is that a kind of high-efficiency aeration biological filter tank includes cell body, water distribution system, gas distribution system, supporting layer, filter material layer, clear water zone, superelevation district, backwashing system and outlet system, described water distribution system includes filter plate, filter and distributing water room, described gas distribution system connects outside air supply system, described backwashing system includes backwash trachea and backwash water pipe, described outlet system includes effluent weir weir plate, backwash rhone, effluent trough, outlet pipe and backwash drain pipe, described effluent weir weir plate arranges porous plate, the height of described porous plate equals to or less than cell body end face. high-efficiency aeration biological filter tank is divided into upward flow and lower to stream two kinds. when sewage is carried out biochemical treatment by upward flow high-efficiency aeration biological filter tank, sewage is entered cell body by bottom water inlet pipe, described filter flow to described supporting layer, described filter material layer, and clear water, is flowed out to described effluent trough through described outlet pipe by described porous plate current. described in this process, gas distribution system carries out blast aeration. after running a period of time, described high-efficiency aeration biological filter tank need to be carried out backwash, to discharge the float retained and to update biomembrane. described backwashing system is started working, backwash gas, backwash water are through supporting layer, described filter material layer described in the uniform gas distribution water distribution backwash of described filter, described filter material layer is expanded to described porous plate, described porous plate isolation filtrate, backwash water, is flowed out to described backwash rhone through described backwash water drain pipe by described porous plate current. lower to stream high-efficiency aeration biological filter tank sewage is carried out biochemical treatment time, sewage is entered cell body by top water inlet pipe, described filter material layer flow to described supporting layer, described filter enter described distributing water room, discharges through described outlet pipe after. after running a period of time, described high-efficiency aeration biological filter tank need to be carried out backwash, to discharge the float retained and to update biomembrane. described backwashing system is started working, backwash gas, backwash water are through supporting layer, described filter material layer described in the uniform gas distribution water distribution backwash of described filter, described filter material layer is expanded to described porous plate, described porous plate isolation filtrate, backwash water, is flowed out to described backwash rhone through described backwash water drain pipe by described porous plate current.
As a kind of improvement of a kind of high-efficiency aeration biological filter tank described in the utility model, described effluent weir weir plate arranges porous plate, and the aperture of described porous plate, less than the minimum grain size of described filter material layer filtrate, can be effectively isolated filtrate and run off with current; The height of described porous plate equals to or less than cell body end face, is prevented effectively from sewage and covers porous plate.
As a kind of improvement of a kind of high-efficiency aeration biological filter tank described in the utility model, expansion height during described filter material layer backwash arrives described porous plate. Same filter tank cell body, height of filter media layer of the present utility model can increase about 0.2m to 0.6m.
The beneficial effects of the utility model are in that: provide a kind of high-efficiency aeration biological filter tank, including cell body, water distribution system, gas distribution system, supporting layer, filter material layer, clear water zone, superelevation district, backwashing system and outlet system, described water distribution system includes filter plate, filter and distributing water room, described gas distribution system connects outside air supply system, described backwashing system includes backwash trachea and backwash water pipe, described outlet system includes effluent weir weir plate, backwash rhone, effluent trough, outlet pipe and backwash drain pipe, described effluent weir weir plate arranges porous plate, the height of described porous plate equals to or less than cell body end face.Utilizing the porous plate buffer action to filtrate, the height of filter material layer can increase about 0.2m to 0.6m relatively, thus reaching efficiently to utilize filter tank cell body dischargeable capacity, strengthening biochemical wastewater treatment, effectively preventing the effect of filterins media run-off.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model upward flow high-efficiency aeration biological filter tank.
Fig. 2 is the structural representation under this utility model to stream high-efficiency aeration biological filter tank.
In figure: 1. superelevation district 2. porous plate 3. effluent weir weir plate 4. clear water zone 5. filter 6. filter plate 7. distributing water room 8. water inlet pipe 9. backwash rhone 10. effluent trough 11. outlet pipe 12. backwash drain pipe 13. filter material layer 14. supporting layer 15. gas distribution system 16. backwash trachea 17. backwash water pipe.
Detailed description of the invention
Below in conjunction with detailed description of the invention and Figure of description, this utility model is further described.
Embodiment example one
As it is shown in figure 1, the food wastewater of certain food company is after primary reinforcement processes, upward flow high-efficiency aeration biological filter tank is adopted to carry out two stage treatment. Sewage is entered cell body by bottom water inlet pipe 8, described filter 5 flow to described supporting layer 14, described filter material layer 13, and clear water, is flowed out to described effluent trough 10 through described outlet pipe 11 by described porous plate 2 stream. Described in this process, gas distribution system 15 carries out blast aeration. After running a period of time, described high-efficiency aeration biological filter tank need to be carried out backwash, to discharge the float retained and to update biomembrane. Described backwashing system is started working, backwash gas, backwash water are through supporting layer 14, described filter material layer 13 described in the described uniform gas distribution water distribution backwash of filter 5, described filter material layer 13 is expanded to described porous plate 2, filtrate isolated by described porous plate 2, backwash water, is flowed out to described backwash effluent trough 9 through described backwash water drain pipe 12 by described porous plate 2 stream.
This food wastewater originally adopted tradition BAF to carry out two stage treatment, and this filter tank cell body height is 5.8m, and wherein height of filter media layer is 2.6m, and during backwash, filtrate expansion rate is about 30%, and clear water zone height is 1.1m, superelevation district 0.5m. One week average removal rate of the Organic substance of this BAF is 28%, and filterins media run-off phenomenon occurs during backwash once in a while. Late reformation is that upward flow high-efficiency aeration biological filter tank carries out two stage treatment, specifically transform as: the weir plate at effluent weir arranges porous plate, and porous plate is up to cell body end face; Height of filter media layer is increased to 3.0m, and clear water zone height is reduced to 0.7m. After transformation, height of filter media layer increases by 15% than original, highly arrives superelevation district during expansion; After transformation, one week average removal rate of Organic substance is 31%, increases by 11% than original, and occurs without filterins media run-off phenomenon again.
Embodiment example two
As in figure 2 it is shown, the production waste water of certain textile company is after primary reinforcement processes, under employing, carry out two stage treatment to stream high-efficiency aeration biological filter tank. Sewage is entered cell body by top water inlet pipe 8, described filter material layer 13 flow to described supporting layer 14, described filter 5, enters described distributing water room 7 and is discharged by described outlet pipe 11. After running a period of time, described high-efficiency aeration biological filter tank need to be carried out backwash, to discharge the float retained and to update biomembrane. Described backwashing system is started working, backwash gas, backwash water are through supporting layer 14, described filter material layer 13 described in the described uniform gas distribution water distribution backwash of filter 5, described filter material layer 13 is expanded to described porous plate 2, filtrate isolated by described porous plate 2, backwash water, is flowed out to described backwash rhone 9 through described backwash water drain pipe 12 by described porous plate 2 stream.
This textile waste originally adopted BAF to carry out two stage treatment, this filter tank cell body height 5.6m, wherein height of filter media layer 2.5m, and filtrate expansion rate about 35% during backwash, clear water zone height is 1.1m, and superelevation district height is 0.5m. One week average removal rate of the Organic substance of this BAF is 22%, and backwashing period is 24h, and filterins media run-off phenomenon often occurs during backwash. Late reformation be lower to stream high-efficiency aeration biological filter tank carry out two stage treatment, specifically transform as: the weir plate at effluent weir arranges porous plate, porous plate is up to cell body end face; Height of filter media layer is increased to 2.8m, and clear water zone height is reduced to 0.9m. Occurring without filterins media run-off phenomenon after transformation, after transformation, height of filter media layer increases by 12% than original, and one week average removal rate of Organic substance is 24% again, increases by 9% than original.
Compared with tradition BAF, the present invention is provided with porous plate on the weir plate of effluent weir, increases the height of filter material layer, reaches efficiently to utilize filter tank cell body effective volume, strengthens biochemical wastewater treatment, effectively prevents the effect of filterins media run-off.
Claims (2)
1. a high-efficiency aeration biological filter tank includes cell body, water distribution system, gas distribution system, supporting layer, filter material layer, clear water zone, superelevation district, backwashing system and outlet system, described water distribution system includes filter plate, filter and distributing water room, described gas distribution system connects outside air supply system, described backwashing system includes backwash trachea and backwash water pipe, described outlet system includes effluent weir weir plate, backwash rhone, effluent trough, outlet pipe and backwash drain pipe, it is characterized in that: described effluent weir weir plate arranges porous plate, the aperture of described porous plate is less than the minimum grain size of described filter material layer filtrate, the height of described porous plate equals to or less than cell body end face.
2. a kind of high-efficiency aeration biological filter tank according to claim 1, is characterized in that: expansion height during described filter material layer backwash arrives described porous plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620020029.0U CN205294949U (en) | 2016-01-11 | 2016-01-11 | High -efficient bological aerated filter |
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| CN201620020029.0U CN205294949U (en) | 2016-01-11 | 2016-01-11 | High -efficient bological aerated filter |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055746A (en) * | 2017-05-04 | 2017-08-18 | 鞍钢集团工程技术有限公司 | A kind of efficient back-flushing method in biofilter |
| CN107694167A (en) * | 2017-10-31 | 2018-02-16 | 尚川（北京）水务有限公司 | A kind of sand filter water collection device and sand filter |
| CN108423804A (en) * | 2018-03-20 | 2018-08-21 | 鲁东大学 | A kind of iris type biological aerated filter |
| CN108622999A (en) * | 2018-07-19 | 2018-10-09 | 安徽华骐环保科技股份有限公司 | The box biological aerated filter of integration |
| CN108854181A (en) * | 2018-07-24 | 2018-11-23 | 江苏沃尔特环保有限公司 | A kind of modified form activated carbon filter applied to soil remediation |
| CN110182963A (en) * | 2019-05-07 | 2019-08-30 | 嘉诚环保工程有限公司 | The back purge system of improved biofilter and its application in the backwash of biofilter |
| CN110302567A (en) * | 2019-07-11 | 2019-10-08 | 刘建恒 | A kind of high efficiency and multi-function fine filtering device |
| CN111186965A (en) * | 2020-03-03 | 2020-05-22 | 安徽绿衡环保科技有限公司 | Sewage upgrading and modifying method adopting ultra-high filtration speed denitrification biological filter system |
-
2016
- 2016-01-11 CN CN201620020029.0U patent/CN205294949U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055746A (en) * | 2017-05-04 | 2017-08-18 | 鞍钢集团工程技术有限公司 | A kind of efficient back-flushing method in biofilter |
| CN107694167A (en) * | 2017-10-31 | 2018-02-16 | 尚川（北京）水务有限公司 | A kind of sand filter water collection device and sand filter |
| CN108423804A (en) * | 2018-03-20 | 2018-08-21 | 鲁东大学 | A kind of iris type biological aerated filter |
| CN108622999A (en) * | 2018-07-19 | 2018-10-09 | 安徽华骐环保科技股份有限公司 | The box biological aerated filter of integration |
| CN108854181A (en) * | 2018-07-24 | 2018-11-23 | 江苏沃尔特环保有限公司 | A kind of modified form activated carbon filter applied to soil remediation |
| CN110182963A (en) * | 2019-05-07 | 2019-08-30 | 嘉诚环保工程有限公司 | The back purge system of improved biofilter and its application in the backwash of biofilter |
| CN110182963B (en) * | 2019-05-07 | 2024-05-31 | 河北粤海水务集团有限公司 | Improved back flushing device of biological filter and application of improved back flushing device in biological filter back flushing |
| CN110302567A (en) * | 2019-07-11 | 2019-10-08 | 刘建恒 | A kind of high efficiency and multi-function fine filtering device |
| CN111186965A (en) * | 2020-03-03 | 2020-05-22 | 安徽绿衡环保科技有限公司 | Sewage upgrading and modifying method adopting ultra-high filtration speed denitrification biological filter system |
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| C14 | Grant of patent or utility model | ||
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