CN201301251Y - Aeration biological filter - Google Patents
Aeration biological filter Download PDFInfo
- Publication number
- CN201301251Y CN201301251Y CNU2008201793937U CN200820179393U CN201301251Y CN 201301251 Y CN201301251 Y CN 201301251Y CN U2008201793937 U CNU2008201793937 U CN U2008201793937U CN 200820179393 U CN200820179393 U CN 200820179393U CN 201301251 Y CN201301251 Y CN 201301251Y
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- water
- filter
- gas
- air
- inlet pipe
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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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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an aeration biological filter which comprises a tank body formed by a tank wall (10) and a soleplate (11), wherein a filter plate (9) is arranged in the tank body; a filter head is arranged on the filter plate (9); and filling materials (15) are paved on the filter plate (9). A herringbone gas and water stabilizing chamber (1) is arranged between the filter plate (9) and the soleplate (11); one side of the gas and water stabilizing chamber (1) is provided with a water inlet pipe (4) and a gas inlet pipe (5); the gas inlet pipe (5) is arranged above the water inlet pipe (4); and the other side of the gas and water stabilizing chamber (1) is provided with a manhole (6). The gas and water stabilizing chamber (1) comprises two crown plates (3) which are slantwise arranged, and a side wall (2) connected with the crown plates (3); a water distributing hole (7) is arranged on the side wall (2); and a gas distribution pipe (8) is arranged on the crown plates (3). The utility model has the advantages of uniform and stable water distribution and gas distribution during back flush, and convenient construction, low maintenance workload and construction investment saving.
Description
Technical field
The utility model relates to BAF commonly used in a kind of sewage treatment process.
Background technology
BAF belongs to the biomembrance process reactor, is widely used in municipal sewage plant's second-stage treatment, advanced treatment and the waterworks micro-polluted raw pre-treatment.Behind the BAF operation certain hour, thicken, need carry out back flushing and recover its usefulness along with the suspended substance of holding back increases with microbial film.The quality of backwash effect directly influences the stability of BAF operation, and water and air distributing is the key that reaches the ideal backwash effect uniformly.
The water and air distributing mode of BAF employing at present has two kinds: the single-point water inlet, single-point intake method and single-point water inlet, " rich " word cast multiple spot intake method, from engineering is used, the homogeneity of latter's water and air distributing is far better with respect to the former, but the both forms single air cushion layer in the bottom, filter tank, be subjected to the single-point water inlet can not fully evenly reach the influence of blast inlet air pressure fluctuation, this air cushion layer can not steady operation in the filter back washing process, cause filter back washing inhomogeneous, filter material layer finally appears, filter phenomenons such as short circuit, directly influence the operating performance of BAF.Simultaneously,, be horizontally disposed with some Zhi Ganguan, form " rich " word shape, on Zhi Ganguan, vertically set out tracheae at last along the main pipe both sides because " rich " word cast distribution mode is at the indoor air inlet main pipe of establishing of water and air distributing.Adopt this mode pipe fitting amount big, require vertical escape pipe top simultaneously at same horizontal absolute altitude, the accuracy requirement height, construction is inconvenient; In addition, " rich " font main and vertical arm are subjected to the impact of water and air distributing room pressure water, gas for a long time, and easily loose shift needs the emptying maintenance, and maintenance workload is big; Owing to be subjected to the restriction of erect riser, the indoor operating space that supplies the maintainer to overhaul of water and air distributing is littler, and the maintenance service difficulty is very big.
The utility model content
Uniform and stable, effective and construction and BAF easy to maintenance, that can save construction investment of distribute water and air when the technical problems to be solved in the utility model provides a kind of back flushing.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of BAF, comprise the pond body that pool wall and base plate form, be provided with filter plate at Chi Tizhong, on filter plate, be provided with filter, on filter plate, be covered with filtrate, between filter plate and base plate, be provided with chevron shaped air water equalization chamber, side in air water equalization chamber is provided with water inlet pipe and inlet pipe, and inlet pipe is above water inlet pipe, opposite side in air water equalization chamber is provided with manhole, above-mentioned air water equalization chamber comprises two top boards that are obliquely installed and the sidewall that links to each other with top board, is provided with distributing hole at the root of sidewall, is provided with gas-distribution pipe on top board.
Described air water equalization chamber is located at the mid-way of pond body base plate and pool wall, the formed blister cavities of filter plate.
Described filter comprises first kind of filter and second kind of filter, and wherein second kind of filter respectively is provided with a row in the both sides at air water equalization chamber top, and its filter handle is obliquely installed along the top board of air water equalization chamber.
Described distributing hole is evenly arranged along the length direction of sidewall, and all is positioned at the sidewall root.
Described gas-distribution pipe is evenly arranged along the top board length direction.
Compared with prior art, the utility model technology has the following advantages:
1, the utility model makes that BAF distribute water and air when back flushing is uniform and stable, effective.The utility model is in the indoor chevron shaped air water equalization chamber that establishes of the water and air distributing of BAF bottom, pressure water that back flushing is used and pressurized air enter this air water equalization chamber by water inlet pipe, inlet pipe respectively, form air cushion layer A after the gas-water pressure balance, pressurized air evenly enters the water and air distributing chamber by the gas-distribution pipe of even layout, pressure water evenly enters the water and air distributing chamber by the distributing hole of even layout, after the gas-water pressure balance at the indoor formation air cushion layer of water and air distributing B.Compare with existing BAF, because water and air distributing is indoor be evenly water inlet air inlet, is not subjected to that single-point is intake, air inlet is uneven influences, and the air-water interface of air cushion layer B is highly stable, make BAF energy water distribution uniformity gas distribution on whole plane, reach the ideal backwash effect.
2, the utility model construction and easy to maintenance.The chevron shaped air water equalization chamber that the utility model adopts in the indoor setting of water and air distributing, be skeleton construction, distributing hole is reserved, and once finish with civil engineering, gas-distribution pipe adopts pre-assembly unit to fix, with the mode of civil engineering integral built-in, can guarantee that the gas-distribution pipe import and export are at same absolute altitude, when so both guaranteeing setting accuracy, reduced workload again, construction easily; Simultaneously, because air water equalization chamber is a skeleton construction, need not daily repair and maintenance, the water and air distributing pipe all adopts stainless steel tube, is embedded in the Steel Concrete, and is solid and reliable, can not be out of shape displacement.So not only easy construction of the utility model, and the repair and maintenance workload is little.
3, the utility model can be saved construction investment.The utility model has been owing to realized the double air cushion layer water and air distributing, makes bigger that single lattice area of BAF can design, the saving construction investment.Generally speaking, single lattice filter tank area is big more, and its water and air distributing homogeneity is poor more, influenced by this, and single lattice BAF area usually should not be too big.And the utility model is owing to be provided with chevron shaped air water equalization chamber, original water and air distributing chamber is divided for two relatively independent lattice, this relatively independent water and air distributing chamber area has only half of original area, make that like this BAF distribute water and air homogeneity is greatly improved, also mean simultaneously, guaranteeing under the prerequisite of original distribute water and air homogeneity effect, the area design of single lattice BAF can got greatlyyer, saving construction investment.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the diagrammatic cross-section of the utility model BAF.
Fig. 2 is the partial enlarged drawing at I place among Fig. 1.
Fig. 3 is the partial enlarged drawing at II place among Fig. 2.
Fig. 4 is the chevron shaped air water equalization chamber floor map of the utility model BAF.
The back flushing working process synoptic diagram of Fig. 5 the utility model BAF.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 4, a kind of BAF, comprise the pond body that pool wall 10 and base plate 11 form, be provided with filter plate 9 at Chi Tizhong, on filter plate 9, be provided with filter, on filter plate 9, be covered with filtrate 15, between filter plate 9 and base plate 11, be provided with chevron shaped air water equalization chamber 1, side in air water equalization chamber 1 is provided with water inlet pipe 4 and inlet pipe 5, and inlet pipe 5 is above water inlet pipe 4, opposite side in air water equalization chamber 1 is provided with manhole 6, above-mentioned air water equalization chamber 1 comprises two top boards 3 that are obliquely installed and the sidewall 2 that links to each other with top board 3, on sidewall 2, be provided with distributing hole 7, on top board 3, be provided with gas-distribution pipe 8, with reference to Fig. 4, distributing hole 7 is evenly arranged along the length direction of sidewall 2, gas-distribution pipe 8 is evenly arranged along top board 3 length directions, the gas-distribution pipe 8 that adopts in the utility model is stainless steel tube, wherein air water equalization chamber 1 is located at pond body base plate 11 and pool wall 10, the mid-way of filter plate 9 formed blister cavities 14, with reference to Fig. 3, described filter comprises first kind of filter 12 and second kind of filter 13, wherein second kind of filter 13 respectively is provided with a row in the both sides at air water equalization chamber 1 top, its filter handle 16 is obliquely installed along the top board 3 of air water equalization chamber 1, to guarantee that simultaneously the height of current stabilization seam and pore on the filter handle 16 of second kind of filter 13 and first kind of filter 12 are at same height, make the air-water interface of each point like this on same horizontal plane, make air cushion layer more stable, first kind of filter 12 used in the utility model adopts common filter.
With reference to Fig. 2, Fig. 3 and Fig. 5, the utility model is in backwash process, backwashing pressure water enters air water equalization chamber 1 by water inlet pipe 4, back flushing pressurized air enters air water equalization chamber 1 by inlet pipe 5, form air cushion layer A after the pressure equilibrium in air water equalization chamber 1, simultaneously, pressure water evenly enters water and air distributing chamber 14 by distributing hole 7, pressurized air evenly enters water and air distributing chamber 14 by gas-distribution pipe 8, and G﹠W forms air cushion layer B by pressure equilibrium once more in water and air distributing chamber 14.Because gas, water all are evenly to enter the water and air distributing chamber, air cushion layer B is highly stable; The water layer that is positioned at air cushion layer B bottom is highly stable equally, whole water and air distributing chamber 14 is in a kind of equilibrated state, the disorderly phenomenon of air free water occurs, like this pressure water in the water and air distributing chamber 14 uniformly the water-in of the filter handle end by each first kind of filter 12, second kind of filter 13 enter filter, pressurized air enters filter by the bar shaped seam place of the filter handle of each first kind of filter 12, second kind of filter 13, gas, water are worn the filter material layer 15 that filter cap enters BAF after entering filter, have realized filtrate is carried out uniform back flushing.
Claims (5)
1, a kind of BAF, comprise the pond body that pool wall (10) and base plate (11) form, be provided with filter plate (9) at Chi Tizhong, on filter plate (9), be provided with filter, on filter plate (9), be covered with filtrate (15), it is characterized in that: between filter plate (9) and base plate (11), be provided with chevron shaped air water equalization chamber (1), side in air water equalization chamber (1) is provided with water inlet pipe (4) and inlet pipe (5), and inlet pipe (5) is in the top of water inlet pipe (4), opposite side in air water equalization chamber (1) is provided with manhole (6), above-mentioned air water equalization chamber (1) comprises two top boards (3) that are obliquely installed and the sidewall (2) that links to each other with top board (3), root at sidewall (2) is provided with distributing hole (7), is provided with gas-distribution pipe (8) on top board (3).
2, BAF according to claim 1 is characterized in that: described air water equalization chamber (1) is located at the mid-way of pond body base plate (11) and pool wall (10), the formed blister cavities of filter plate (9) (14).
3, BAF according to claim 1, it is characterized in that: described filter comprises first kind of filter (12) and second kind of filter (13), wherein second kind of filter (13) respectively is provided with a row in the both sides at air water equalization chamber (1) top, and its filter handle (16) is obliquely installed along the top board (3) of air water equalization chamber (1).
4, BAF according to claim 1 is characterized in that: described distributing hole (7) is evenly arranged along the length direction of sidewall (2).
5, BAF according to claim 1 is characterized in that: described gas-distribution pipe (8) is evenly arranged along top board (3) length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201793937U CN201301251Y (en) | 2008-12-05 | 2008-12-05 | Aeration biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201793937U CN201301251Y (en) | 2008-12-05 | 2008-12-05 | Aeration biological filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301251Y true CN201301251Y (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201793937U Expired - Lifetime CN201301251Y (en) | 2008-12-05 | 2008-12-05 | Aeration biological filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN201301251Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798139A (en) * | 2010-02-26 | 2010-08-11 | 施建臣 | Non-blocking microporous filter plate for biological aerated filter |
| CN104150582A (en) * | 2014-08-19 | 2014-11-19 | 中国建筑设计研究院 | Modularized energy-saving spatial formula sewage treatment device and system thereof used for multi-floor buildings |
| CN104528932A (en) * | 2014-12-26 | 2015-04-22 | 上海中信水务产业有限公司 | Advanced wastewater treatment denitrification biological filter device system and treatment process |
| CN106237691A (en) * | 2016-09-27 | 2016-12-21 | 无锡大功机械制造有限公司 | A kind of filter plate lift sewage vibrative filter |
-
2008
- 2008-12-05 CN CNU2008201793937U patent/CN201301251Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798139A (en) * | 2010-02-26 | 2010-08-11 | 施建臣 | Non-blocking microporous filter plate for biological aerated filter |
| CN101798139B (en) * | 2010-02-26 | 2012-02-22 | 施建臣 | Non-blocking microporous filter plate for biological aerated filter |
| CN104150582A (en) * | 2014-08-19 | 2014-11-19 | 中国建筑设计研究院 | Modularized energy-saving spatial formula sewage treatment device and system thereof used for multi-floor buildings |
| CN104150582B (en) * | 2014-08-19 | 2016-04-27 | 中国建筑设计院有限公司 | The energy-conservation three-dimensional waste disposal plant of modularization for many floors building and system |
| CN104528932A (en) * | 2014-12-26 | 2015-04-22 | 上海中信水务产业有限公司 | Advanced wastewater treatment denitrification biological filter device system and treatment process |
| CN106237691A (en) * | 2016-09-27 | 2016-12-21 | 无锡大功机械制造有限公司 | A kind of filter plate lift sewage vibrative filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huatian Nanjing Engineering & Technology Corporation, MCC Assignor: Zhongye Huatian Engineering Technology Co., Ltd. Contract record no.: 2011320000561 Denomination of utility model: Method for treating wastewater of terephthalic acid by using aerating bio filter Granted publication date: 20090902 License type: Exclusive License Record date: 20110415 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160810 Address after: Jianye District of Nanjing City, Jiangsu province the Fuchun River 210019 street 18# Patentee after: Huatian Nanjing Engineering & Technology Corporation, MCC Address before: 243005 No. 25, Hunan Road, Anhui, Ma'anshan Patentee before: Zhongye Huatian Engineering Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090902 |