CN207142907U - Baf - Google Patents
Baf Download PDFInfo
- Publication number
- CN207142907U CN207142907U CN201721098767.8U CN201721098767U CN207142907U CN 207142907 U CN207142907 U CN 207142907U CN 201721098767 U CN201721098767 U CN 201721098767U CN 207142907 U CN207142907 U CN 207142907U
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- filter plate
- water
- tank body
- cobblestone
- water inlet
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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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- Biological Treatment Of Waste Water (AREA)
Abstract
It the utility model is related to a kind of BAF, including filter tank body, the bottom of the filter tank body sets water inlet, air inlet, and water distributing plate, cobblestone supporting layer, porous filter plate, packing layer, fixed filter plate are set gradually from bottom to top in the filter tank body interior；It is provided with strainer head in the hole of the porous filter plate, the lower end of the strainer head is probeed into cobblestone supporting layer, plane on porous filter plate is stretched out in upper end；It is provided with the porous filter plate upper surface close to porous filter plate and the hole membranes diffuser that can be aerated, the hole membranes diffuser and strainer head arranged for interval；Exported in the side wall of the filter tank body, positioned at the top of packing layer provided with pure water inlet and backwashing water, and water outlet weir plate is equipped with the pure water inlet and backwashing water exit.The BAF that the utility model obtains saves purification cost not only to advanced treatment of wastewater efficiency high, good purification.
Description
Technical field
It the utility model is related to technical field of sewage, more particularly to a kind of BAF.
Background technology
BAF (Biological Aerated Filter, abbreviation BAF), it is that one kind is consolidated using granule filter material
Determine the aerobic or anaerobic biological reactor of biomembrane, the technique collects bio-contact oxidation with suspension filter bed retention functions in one
Body, it can be achieved to remove the high-efficient cleaning of dirty water pollutant, be the New Technology about Wastewater Treatment risen in the world in recent years.Aeration and biological
Filter tank is semiclosed or totally-enclosed structures, thus its biochemical reaction influenceed by ambient temperature it is smaller, so suitable application region scope
It is wider.But filtrate is easily caused filtrate to crush, be lost in by water conservancy load impact in existing biological aerated filter, and height has
Filtrate is easy to conglomeration and blocked during machine load；In addition, by the way of up flow type water inlet, inevitably by sewage
Suspension be trapped in filter tank bottom, long operational time can cause filter to block, and influence water distribution and backwash effect.
Utility model content
In order to solve the above problems, the utility model provides a kind of BAF, and the BAF is not only
To advanced treatment of wastewater efficiency high, good purification, and save purification cost.
The technical solution adopted in the utility model is：A kind of BAF, for purification of organic waste water, including filter tank
Body, the bottom of the filter tank body sets gradually water inlet, evacuation port, air inlet and backwash air inlet, in the filter
Pond body interior sets gradually water distributing plate, cobblestone supporting layer, porous filter plate, filler from bottom to top along filter tank body height direction
Layer and fixed filter plate；The porous filter plate is used to carry out support to packing layer, and strainer head is provided with the hole of porous filter plate,
The lower end of the strainer head is probeed into cobblestone supporting layer, plane on porous filter plate is stretched out in upper end；In on the porous filter plate
Surface is provided with close to porous filter plate and the hole membranes diffuser that can be aerated, between the hole membranes diffuser and strainer head
Every arrangement；The fixed filter plate is located at the top of packing layer and packing layer is fixed；In in the side wall of the filter tank body, position
In the top of packing layer, exported provided with pure water inlet and backwashing water, and it is equal in the pure water inlet and backwashing water exit
Provided with water outlet weir plate.
As the further restriction to above-mentioned technical proposal, the cobblestone support floor height 20-30cm, the cobblestone is held
The cobblestone in layer is ask to pile up row arrangement, a diameter of 3- of cobblestone in rule according to cobblestone diameter on water distributing plate
10cm。
As the further restriction to above-mentioned technical proposal, the high 60-70cm of described filler layer, the interior filling of described filler layer
The mixture of grain activated carbon and activated sludge is filler, and the granular activated carbon is diameter 0.2-0.5cm cocoanut active charcoal.
As the further restriction to above-mentioned technical proposal, the water inlet connects source of sewage by variable frequency pump, described
Air inlet connect frequency conversion air pump, it is described backwash air inlet connection pulse air pump, and the water inlet, evacuation port, air inlet with
And it is equipped with check (non-return) valve at backwash air inlet.
As the further restriction to above-mentioned technical proposal, fluid flow is provided between the water inlet and variable frequency pump
Meter, gas flowmeter is respectively provided between the air inlet and frequency conversion air pump, between backwash air inlet and pulse air pump.
As the further restriction to above-mentioned technical proposal, the water inlet can be used as backwash water inlet.
As the further restriction to above-mentioned technical proposal, the pure water inlet is arranged at backwashing water outlet top.
Using above-mentioned technology, the utility model has the advantage of：
BAF described in the utility model, by being used cooperatively for cobblestone supporting layer and packing layer, can have
Effect improves the treatment effect to sewage, and cobblestone supporting layer, can also be to the suspension in sewage except being acted on supporting layer
Retained in advance, prevent suspension from entering the blocking that strainer head causes strainer head, it also avoid suspension and enter filler
Layer impacts to the ability of the microbial film catabolism organic pollution on filler；Other packing layer uses granular activated carbon
Joint activated sludge makes packing layer have larger specific surface area as biologic packing material, the porosity characteristic of wherein activated carbon, therefore
There can be more microbial biomass in unit volume, there is preferable catharsis to sewage, and it is a certain amount of in packing layer
Activated sludge not only has certain degradation to the pollutant in sewage, while is also complemented each other with granular activated carbon, effectively
Packing layer is improved to advanced treatment of wastewater efficiency and clean-up effect.
The setting of water distributing plate described in the utility model, sewage can be made to disperse after filter tank body is entered by water distributing plate, will
Sewage distribution is more uniform, make to contact between sewage and cobblestone supporting layer and packing layer more fully, to improve purification efficiency.
Cobblestone supporting layer described in the utility model arranges arrangement on water distributing plate according to cobblestone diameter in rule pile
Setting, can make the gap at cobblestone supporting layer is bottom-up to be gradually reduced, so can in sewage suspension carry out ladder
Degree retention, strengthens the clean-up effect to sewage.
A diameter of 0.2-0.5cm described in the utility model coconut activated carbon filling material, particle diameter is more uniform, can greatly increase and fill out
The porosity of the bed of material, the growth of microbial film on filler is not only convenient for, and loss of flood peak when filter tank is run can be reduced.
Hole membranes diffuser described in the utility model and the spaced apart setting of strainer head, can be uniformly distributed solarization air cap
On porous filter plate, the oxygen concentration in making from strainer head into the sewage of packing layer is more uniform, so that sewage is net
It is more preferable to change effect.
The setting of fixed filter plate described in the utility model, the filler in packing layer can be shielded, prevent filler quilt
Current take away microorganism concn in influence packing layer and, so as to influence clean-up effect of the packing layer to sewage, also avoid filler from entering net
Make water outlet water degradation in water after change.
The setting of the compound backwash of pulsed air water described in the utility model, not only reduces backwash water amount, simultaneously
Backwash effect is ensure that, and energy consumption can be reduced effectively, can save enterprise's production cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
In figure：1- filter tanks body；2- water distributing plates；3- cobblestone supporting layers；4- packing layers；The porous filter plates of 5-；6- fixes filter
Plate；7- strainer heads；8- hole membranes diffusers；9- pure water inlets；10- backwashing waters export；11- water outlet weir plates；12- is intake
Mouthful；13- evacuation ports；14- air inlets；15- backwashes air inlet.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
As shown in figure 1, the BAF includes filter tank body 1, the bottom of the filter tank body 1 is set gradually into water
Mouthfuls 12, evacuation port 13, air inlet 14 and backwash air inlet 15, the water inlet 12, evacuation port 13, exhaust outlet 14 and anti-
Rinse at air inlet 15 and be equipped with check (non-return) valve, prevent gas or liquid from flowing back.The water inlet 12 is connected by variable frequency pump
Source of sewage is connect, fluid flowmeter is provided between variable frequency pump and water inlet 12；The air inlet 14 connects frequency conversion air pump, is used for
Aeration operation is carried out to filter tank body 1, gas flowmeter is provided between frequency conversion air pump and air inlet 14；The backwash air inlet
Mouth 15 connects pulse air pump through gas flowmeter, to give pulsed air-water backwashing when being backwashed to filter tank body 1
Operation, so that in the case of backwash water amount is less, it is also ensured that backwash effect, and energy consumption also can obtain effective drop
It is low, can be that enterprise saves production cost.Wherein in order to save enterprise's input cost, water inlet 12 can be used as backwash water inlet,
Backwashing water can enter in filter tank body 1 through water inlet 12 carries out backwash operation.
Water distributing plate 2, cobblestone are set gradually from bottom to top along the short transverse of filter tank body 1 inside the filter tank body 1
Supporting layer 3, porous filter plate 5, packing layer 4 and fixed filter plate 6, the setting of the water distributing plate 2 can make sewage enter filter tank sheet
It is scattered by water distributing plate 2 after body 1, sewage distribution is more uniform, make sewage indirectly with cobblestone supporting layer 3 and packing layer 4
Tactile is more abundant, so that purification efficiency improves.The porous filter plate 5 is used to carry out packing layer 4 support, and fixed filter plate 6 is located at
The top of packing layer 4 prevents filler is taken away by current from influenceing micro- life in packing layer 4 to be shielded to the filler in packing layer 4
Thing concentration it also avoid using in the water that filler enters after purification with current so as to influence clean-up effect of the packing layer 4 to sewage
Water water degradation.
In addition, being provided with strainer head 7 in the hole of the porous filter plate 5, the lower end of the strainer head 7 probes into cobblestone and held
Hold in the palm in layer 3, and the upper plane of porous filter plate 5 is then stretched out in the upper end of strainer head 7.And it is provided with tightly in the porous upper surface of filter plate 5
Adjacent porous filter plate 5 and the hole membranes diffuser 8 that can be aerated, and hole membranes diffuser 8 and the arranged for interval of strainer head 7, such as
This can be such that solarization air cap is evenly distributed on porous filter plate 5, the oxygen concentration in making from strainer head 7 into the sewage of packing layer 4
More uniformly, so that the clean-up effect of sewage is more preferable.And it is because hole membranes to select hole membranes diffuser 8 as aerator
Diffuser 8 is not influenceed by temperature in filter tank body 1 and the difference of temperature, also not by the height of filter tank body 1 and the filler of packing layer 4
The control of voidage, and the bubble diameter of hole membranes diffuser 8 is small, bubble distribution scope is big, the concaveconvex structure of gas outlet
Filled blocking is not easy, is not afraid of filler stacking pressure.
Cobblestone supporting layer 3 high 25cm, a diameter of 3-10cm of cobblestone, and the cobblestone in cobblestone supporting layer 3 is in cloth
According to cobblestone diameter in rule pile row arrangement on water plate 2, being arranged such can make at cobblestone supporting layer 3 between cobblestone
Gap it is bottom-up be gradually reduced, so can in sewage suspension carry out gradient retention, strengthen to sewage purification effect
Fruit.In addition, the height of packing layer 4 is 65cm, the mixture of filler particles activated carbon and activated sludge is filler in packing layer 4, its
Middle granular activated carbon is the cocoanut active charcoal that diameter is 0.2-0.5cm, and the granular activated carbon particle diameter is more uniform, can greatly increase and fill out
The voidage of the bed of material 4, the growth of the microbial film on filler is not only contributed to, while can also reduced when filter tank body 1 is run
The loss of flood peak.Cobblestone supporting layer 3 is used cooperatively with packing layer 4, can effectively improve processing effect of the filter tank body 1 to sewage
Fruit.Cobblestone supporting layer 3 can also in advance be retained to the suspension in sewage, prevented in addition to being acted on supporting layer
Suspension enters the blocking that strainer head 7 causes filter, it also avoid suspension into packing layer 4 to the microbial film on filler
The ability of catabolism organic pollution impacts.Packing layer 4 is filled out using granular activated carbon joint activated sludge as biology
Material, the porosity characteristic of wherein activated carbon makes packing layer 4 have larger specific surface area, therefore can have in unit volume more
Microbial biomass, so as to having preferable catharsis to sewage, and a certain amount of activated sludge is not only to sewage in packing layer 4
In pollutant there is certain degradation, while also complemented each other with granular activated carbon, effectively increase packing layer 4 to sewage
The efficiency and clean-up effect of advanced treating.
In in the side wall of filter tank body 1 and positioned at packing layer 4 top be provided with pure water inlet 9 and backwashing water outlet 10,
And pure water inlet 9 is arranged at the top of backwashing water outlet 10, while it is equipped with pure water inlet 9 and backwashing water outlet 10
Water outlet weir plate 11, water outlet weir plate 11 can make water outlet uniform, while be also prevented from impurity outflow.
When in use, treatment sewage is entered in filter tank body 1 BAF of the present utility model by water inlet 12,
Uniformly it is upwardly into packing layer 4 after water distributing plate 2 is scattered and cobblestone supporting layer 3 removes oil removal, at the same time single hole
Membrane diffusion device 8 conveys the air needed for microbial film metabolism into filter tank body 1, uniform from bottom to top in the air water of packing layer 4
Concurrent crosses seed activity carbon filling material and activated sludge with microbial film, and microbial film is inhaled under aerobic conditions from sewage
Deliquescent organic pollution is taken as nutrient source, and to its catabolism, so that sewage is purified.When running one section
Between after, if effluent quality is deteriorated, water inlet 12 is connected with backwashing water, while open pulse air pump, filter tank body 1 is entered
Horizontal pulse formula air-water backwashing.Therefore, BAF provided by the utility model not only to advanced treatment of wastewater efficiency high,
Good purification, and save purification cost.
The preferred embodiment of the utility model is the foregoing is only, but the scope of protection of the utility model is not limited to
This, any those skilled in the art are in the technical scope that the utility model discloses, according to technology of the present utility model
Design is subject to equivalent substitution or changes the technical scheme of gained, should all be covered by the scope of protection of the utility model.
Claims (7)
- A kind of 1. BAF, it is characterised in that：Including filter tank body, the bottom of the filter tank body is set gradually into water Mouth, evacuation port, air inlet and backwash air inlet, in the filter tank body interior along filter tank body height direction from bottom to top Set gradually water distributing plate, cobblestone supporting layer, porous filter plate, packing layer and fixed filter plate；The porous filter plate is used for filling out The bed of material carries out support, is provided with strainer head in the hole of porous filter plate, the lower end of the strainer head probeed into cobblestone supporting layer, Plane on porous filter plate is stretched out in upper end；It is provided with the porous filter plate upper surface close to porous filter plate and the list that can be aerated Pore membrane diffuser, the hole membranes diffuser and strainer head arranged for interval；The fixed filter plate is located at the top of packing layer and right Packing layer is fixed；In in the side wall of the filter tank body, positioned at the top of packing layer, provided with pure water inlet and backwashing water Outlet, and it is equipped with water outlet weir plate in the pure water inlet and backwashing water exit.
- 2. BAF according to claim 1, it is characterised in that：The cobblestone support floor height 20-30cm, institute State the cobblestone in cobblestone supporting layer and arrange arrangement, the cobblestone in rule pile according to cobblestone diameter on water distributing plate A diameter of 3-10cm.
- 3. BAF according to claim 1, it is characterised in that：The high 60-70cm of described filler layer, the filler The mixture of filler particles activated carbon and activated sludge is filler in layer, and the granular activated carbon is diameter 0.2-0.5cm coconut palm Shell activated carbon.
- 4. BAF according to claim 1, it is characterised in that：The water inlet is connected dirty by variable frequency pump Water source, the air inlet connect frequency conversion air pump, the backwash air inlet connection pulse air pump, and the water inlet, evacuation port, Check (non-return) valve is equipped with air inlet and backwash air inlet.
- 5. BAF according to claim 4, it is characterised in that：It is provided between the water inlet and variable frequency pump Fluid flowmeter, gas is respectively provided between the air inlet and frequency conversion air pump, between backwash air inlet and pulse air pump Flowmeter.
- 6. BAF according to claim 1, it is characterised in that：The water inlet can be used as backwash water inlet Mouthful.
- 7. BAF according to claim 1, it is characterised in that：The pure water inlet is arranged at backwashing water and gone out Above mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721098767.8U CN207142907U (en) | 2017-08-30 | 2017-08-30 | Baf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721098767.8U CN207142907U (en) | 2017-08-30 | 2017-08-30 | Baf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207142907U true CN207142907U (en) | 2018-03-27 |
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ID=61670740
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721098767.8U Active CN207142907U (en) | 2017-08-30 | 2017-08-30 | Baf |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469092A (en) * | 2018-04-20 | 2018-08-31 | 杨荣 | A kind of Household fresh air device |
| 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 |
| CN110627206A (en) * | 2019-11-04 | 2019-12-31 | 江苏大彭环保科技有限公司 | A bearing device that improves the coagulation performance of activated sludge and the activity of bacterial clusters |
| CN114735893A (en) * | 2022-04-19 | 2022-07-12 | 中国科学院生态环境研究中心 | Method for improving water quality of bioactive carbon by micro-bubbles |
| CN117566900A (en) * | 2023-12-29 | 2024-02-20 | 中铁八局集团有限公司 | Micro-oxygen aeration biochemical filter tank for wastewater treatment |
-
2017
- 2017-08-30 CN CN201721098767.8U patent/CN207142907U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469092A (en) * | 2018-04-20 | 2018-08-31 | 杨荣 | A kind of Household fresh air device |
| 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 |
| CN110627206A (en) * | 2019-11-04 | 2019-12-31 | 江苏大彭环保科技有限公司 | A bearing device that improves the coagulation performance of activated sludge and the activity of bacterial clusters |
| CN114735893A (en) * | 2022-04-19 | 2022-07-12 | 中国科学院生态环境研究中心 | Method for improving water quality of bioactive carbon by micro-bubbles |
| CN117566900A (en) * | 2023-12-29 | 2024-02-20 | 中铁八局集团有限公司 | Micro-oxygen aeration biochemical filter tank for wastewater treatment |
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