CN209618982U - A kind of biological aerated filter comprising two-tube air distribution system - Google Patents
A kind of biological aerated filter comprising two-tube air distribution system Download PDFInfo
- Publication number
- CN209618982U CN209618982U CN201920242891.XU CN201920242891U CN209618982U CN 209618982 U CN209618982 U CN 209618982U CN 201920242891 U CN201920242891 U CN 201920242891U CN 209618982 U CN209618982 U CN 209618982U
- Authority
- CN
- China
- Prior art keywords
- filter
- filter block
- biological aerated
- backwash
- distribution
- 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.)
- Active
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
The utility model provides a kind of biological aerated filter comprising two-tube air distribution system, and the top of the biological aerated filter is equipped with water inlet pipe and/or inlet channel, filter material layer, supporting layer and filter block layer, and bottom is equipped with outlet pipe；There is filter block layer multiple row to be successively laid on the filter block in biological aerated filter, wherein the filter block of odd column is first state filter block, and the filter block of even column is the second state filter block；Two-tube air distribution system includes being layed in the filter block layer of the bottom of biological aerated filter and being laid on the first distribution pipeline and the second distribution pipeline under filter block layer；First distribution pipeline is connected to each first state filter block, and the second distribution pipeline is connected to each second state filter block, and first state filter block and the second state filter block are laterally laid in biofilter in a manner of being spaced apart from each other.Biological aerated filter in the utility model is equipped with two-tube air distribution system, breaches the bottleneck that can not be applied to filter block in biological aerated filter.
Description
Technical field
The utility model relates to sewage treatment field, in particular to a kind of aeration and biological filter comprising two-tube air distribution system
Pond.
Background technique
Biological aerated filter, abbreviation BAF is the end of the eighties at a kind of New biological membrane method sewage that America and Europe grows up
Science and engineering skill, obtains large development the beginning of the nineties, and maximum-norm reaches hundreds of thousands tpd, and develops as can be with denitrogenation dephosphorizing.It should
Technique has the function of removing SS, COD, BOD, nitrification, denitrogenation, dephosphorization, removal AOX (harmful substance).Biological aerated filter is
Collect biological oxidation and retains the new process of suspended solid one.
Integrated poured filter plate, it is referred to as whole to pour filter plate, using dedicated modeling pallet scene entirety continuous placing, and with filter tank pond
The armored concrete filter plate of filter that wall is connected as one, mountable.Adjustable strainer head, abbreviation filter, by filter cap, filter rod, pre-
Bury a pattern adjustable filter head for three parts composition.Wherein, with the screw thread of regulatory function on filter rod, filter rod can be adjusted up and down by rotating filter rod
On air inlet keep it in same level height.Modeling pallet can be used for installing adjustable strainer head, and complete inside filter tank
The dedicated modeling pallet of integral pouring reinforcement concrete filter plate.
Currently, aeration and biological filter pours filter plate+filter water distribution gas distribution system using whole substantially, filter is fixedly installed in entirety
Backwash air and backwash water are entered after mixing by filter lower part jointly on filter plate, when backwash is discharged from the filter cap on filter top.It should
System occur the problem that 1, civil engineering and installation are complicated in construction and operation, and long construction period, construction precision is not easy
Guarantee.Whole pond filter plate need to guarantee horizontal error < ± 5mm.Filter rod built-in fitting need to shift to an earlier date it is embedding be fixed on filter plate reinforcing bar, filter
Arrangement is usually 36/m2, with single lattice 60m2It calculates, every lattice filter reaches more than 2000, and need to guarantee whole filter horizontal errors
< ± 5mm.2, it needs that 1 meter of high filter chamber is arranged below filter plate, for installing gas distributing pipeline and maintenance repair, therefore filter chamber occupies pond
Body volume is larger but does not play the role of removing pollutant, belongs to waste volume.3, every square metre of filter tank only 36 water distributions
Gas distribution point, water distribution gas distribution point is less to cause backwash intensity uneven.4, filter is easy to appear damaged or clogging in operation, from
And keep backwash intensity uneven, influence filter tank operational effect.5, it to keep water distribution gas distribution more uniform and preventing filter clogging filter, filters
Setting 400mm pebble support layer is needed below the above filtrate of plate.Pebble support layer on the one hand occupy filter tank volume, on the other hand due to
Cobble gap increases, and is easy to deposit mud, and can not backwash come out, supporting layer occurs in longtime running, and hardened to cause water distribution gas distribution to occur short
Flow phenomenon.
Can be solved the above problems very well using filter block water and air distributing, but due to filter block structure limitation cause current filter block without
Method applies to biological aerated filter system.Because biological aerated filter needs to be aerated always when running, and general filter chamber or anti-nitre
It does not need to be aerated when changing filter tank operation.This is that biological aerated filter and the maximum of other filter tanks are distinguished.When filter block water and air distributing, water
With gas simultaneously by entering inside filter block, by two sub-distribution, so that air water is uniformly distributed rear while being discharged upwards.But such water distribution
Distribution necessarily require air water be it is equidirectional, i.e., gas and water are distributed from bottom to top.If gas and water be reversely distributed (gas to
Above, water body is downward), then vapour lock can be generated, cannot achieve water body overcurrent.
Biological aerated filter such as uses filter block water distribution gas distribution, and only there are two types of forms: to stream under water body upward flow or water body.Under
To stream because filter block vapour lock cannot achieve；And upward flow, because sewage needs first to be entered in pond by filter block (without media filtration), when
Between it is long can block filter block surface void, finally can not water distribution gas distribution, and can not be repaired because filter block is set to filter tank bottom, so side
Formula is also infeasible.
Existing biological aerated filter major technique is as follows: 1, pouring filter plate construction level error for guarantee is whole, concrete is primary
Continuous placing is completed, and disposes springboard press polish concrete surface three times after initial set.After filter plate pours plus straw bag covers, and
Water moist curing, and curing time is no less than 7 days.Not to trampling or install filter in curing period.2, water is installed for guarantee filter cap
Flat error need to be filled in built-in base to filter tank water distribution area in permissible range and adjust that screw thread is suitable for reading flushes, adjust as screw rod
Benchmark.And with specific purpose tool adjusting screw rod, make transverse plane thereon and water distribution area horizontal plane on sustained height.It 3, is solution filter
The problem of damaging or block in operation, now designs detachable filter, and dismounting and change works inside the filter chamber of filter plate lower part
It completes.4, hardened to solve the problems, such as that supporting layer accumulates sludge, some filter tanks eliminate the design of supporting layer, on filter plate directly
Mat formation filtrate.
Filter block is simply possible to use in common filtering or denitrification filter pool at present.Under being when general filter chamber or denitrification filter pool
Xiang Liu, when being in filtered model, water body from top to bottom passes through filter block；When in backwash mode, backwash water and backwash gas are simultaneously
From bottom to top by filter block, filtered model terminates at this time, i.e., anhydrous from top to bottom to enter filter tank and filter block.
Utility model content
Substantially it uses to solve biological aerated filter in the prior art and whole pours asking for filter plate+filter water distribution air compensating system
Topic, also for solving the problems, such as that filter block may not apply to biological aerated filter, the utility model provides a kind of using filter block
Biological aerated filter comprising two-tube air distribution system.The top of the biological aerated filter is equipped with water inlet pipe and/or inlet channel, middle part
It is equipped with filter material layer, supporting layer and filter block layer from top to down, bottom is equipped with outlet pipe；There is the filter block layer multiple row successively to spread
The filter block being located in the biological aerated filter, wherein the filter block of odd column be first state filter block, even column it is described
Filter block is the second state filter block；The two-tube air distribution system include be layed in the bottom of the biological aerated filter filter block layer and
It is laid on the first distribution pipeline and the second distribution pipeline under the filter block layer；The first distribution pipeline is connected to each described
One state filter block, the second distribution pipeline are connected to each second state filter block, the first state filter block and the second shape
State filter block is laterally laid in the biofilter in a manner of being spaced apart from each other.
Preferably, the first distributing valve of the first gas-distribution pipe road setting, the second gas-distribution pipe road setting second are matched
Air valve, the first distribution pipeline and the second gas-distribution pipe route main aeration tube branch and go out, and main exposure is arranged on the main aeration tube
It is in the open state that air valve, first distributing valve and the second distributing valve are configured under aeration mode only one.
Preferably, the biological aerated filter is additionally provided with backwashing system, and the backwashing system includes: and the main aeration tube
The backwash drainpipe that the backwash air pipe of connection, the backwash water pipe connecting with the outlet pipe, the water inlet pipe top set go out；Institute
Inlet channel is stated as backwash drainage ditch；It is provided with backwash air valve on the backwash air pipe, is provided on the backwash water pipe
Backwash inlet valve is provided with backwash drain valve on the backwash drainpipe.
Preferably, the two-tube air distribution system is additionally provided with control first distributing valve and second distributing valve is automatic
The PLC control system of switching.
Preferably, the supporting layer is the boulder bed of 400mm.
Preferably, the width of the filter block is no more than 300mm.
Optionally, the first distribution pipeline and the second distribution pipeline are uniformly provided with gas outlet in end face upward.
Optionally, the first distribution pipeline and the second distribution pipeline uniform grafting on end face upward is shorted
Pipe.
Preferably, the filter block is M type filter block or W type filter block, and the upper surface of the filter block is provided with hole, the filter block
Middle and lower part is recessed inwardly.
Another aspect according to the present utility model also provides a kind of application method of above-mentioned biological aerated filter, the exposure
Gas biofilter is in normally water inlet mode: inlet valve is opened, and outlet valve is opened；Backwash inlet valve is closed, and backwash drain valve closes
It closes, backwash air valve is closed, and main aeration valve is opened；When the first distributing valve is opened, and the second distributing valve is closed, first state filter block
To be aerated mode, the second state filter block is filtered model.When the first distributing valve is closed, and the second distributing valve is opened, first state
Filter block is filtered model, and the second state filter block is aeration mode.First distributing valve and the second distributing valve period sexual intercourse
For unlatching, the period is 2~4 hours.
Preferably, which has in backwash mode there are three types of backwash subpattern, is respectively as follows: independent air purge
When mode: backwash air valve, the first distributing valve, the second distributing valve are opened, remaining valve is turned off；Solely when washing subpattern: anti-
Wash inlet valve, backwash drain valve is opened, remaining valve is turned off；When air water joint backwash subpattern: backwash air valve, first are matched
Air valve, the second distributing valve are opened, and backwash inlet valve, backwash drain valve are opened, remaining valve is closed.
Preferably, which runs backwash mode after normal water inlet mode operation 4~6 days.
Preferably, for the biological aerated filter in normally water inlet mode, half filter block is aeration state in pond, the other half filter
Brick is to receive water state；For the biological aerated filter in backwash mode, the operating condition of all filter blocks is the same, while water distribution or water distribution simultaneously
Gas distribution.
According to the biological aerated filter in the utility model, obtainable beneficial effect is included at least:
1, the biological aerated filter in the utility model is equipped with two-tube air distribution system, and breaching can not be applied to expose by filter block
Bottleneck on gas biofilter.
2, the biological aerated filter principle and simple structure in the utility model, compared with traditional aeration biofilter into increasing
First distributing valve and the second distributing valve.Control principle is simple, can control the first distributing valve and second by the PLC control system time
Distributing valve unlatches and closes.
It should be appreciated that aforementioned description substantially and subsequent detailed description are exemplary illustration and explanation, it should not
As the limitation to the claimed content of the utility model.
Detailed description of the invention
With reference to the attached drawing of accompanying, the more purposes of the utility model, function and advantage will pass through the utility model embodiment party
Formula is illustrated described below, in which:
Fig. 1 schematically shows the structural schematic diagram of biological aerated filter and two-tube air distribution system in the utility model.
Specific embodiment
By reference to exemplary embodiment, the purpose of this utility model and function and for realizing these purposes and function
Method will be illustrated.However, the utility model is not limited to exemplary embodiment as disclosed below；It can be by not
It is realized with form.The essence of specification is only to aid in those skilled in the relevant arts' Integrated Understanding the utility model
Detail.
Hereinafter, the embodiments of the present invention will be described with reference to the drawings.In the accompanying drawings, identical appended drawing reference represents
Same or similar component or same or like step.
The form of filter block is used currently without biological aerated filter, it is basic to solve biological aerated filter in the prior art
Using whole the problem of pouring filter plate+filter water distribution air compensating system, biological aerated filter may not apply to also for filter block is solved
Problem, the utility model provide a kind of biological aerated filter using filter block.
Fig. 1 is the structural schematic diagram of the biological aerated filter and two-tube air distribution system in the utility model.As shown in Figure 1,
The top of the biological aerated filter 100 is equipped with water inlet pipe 120 and/or inlet channel 110, and middle part is equipped with filter material layer from top to down
140, supporting layer 150 and filter block layer 160, bottom are equipped with outlet pipe 130.Filter block layer 160 has multiple row is successively horizontally disposed to be paved with
The filter block of biological aerated filter cross section, wherein the filter block of odd column is first state filter block, and the filter block of even column is the second shape
State filter block.
The biological aerated filter further includes two-tube air distribution system, the filter of the bottom including being layed in biological aerated filter 100
Brick layer 160 and it is laid on the first distribution pipeline 220 and the second distribution pipeline 230 under filter block layer 160.First distribution pipeline 220
Gas outlet close to first state filter block, the gas outlet of the second distribution pipeline 230 is close to the second state filter block, mode of normally intaking
When, the first distribution pipeline 220 is not connected to the second distribution pipeline 230.
In a kind of preferred embodiment in the present invention, the first distributing valve 221 is set on first distribution pipeline 220, the
Second distributing valve 231 is set on two distribution pipelines 230.When it is implemented, the first distribution pipeline 220 and the second distribution pipeline 230
It can be gone out, settable main aeration valve on main aeration tube 210 by main 210 branch of aeration tube.In other embodiments, the first distribution
Pipeline 220 and the second distribution pipeline 230 can also be respectively configured.
In the above-described embodiment, the utility model devises the exclusive two-tube air distribution system that a set of cooperation filter block uses,
First distribution pipeline 220 and the second distribution pipeline 230 work alternatively, and the two does not work at the same time, to make inside single lattice filter tank
Filter block is divided to be in filtered model (water from top to bottom passes through filter block), part filter block is in aeration mode, and (gas is out of filter block under
On and), it is aerated in single lattice pond to solve and filters while carrying out, to meet the operational mode of biological aerated filter.
In the above-described embodiment, two-tube air distribution system is additionally provided with the first distributing valve 221 of control and the second distributing valve 231
The PLC control system of automatic switchover controls the first distributing valve 221 by PLC control system and the automatic of the second distributing valve 231 cuts
It changes, to realize the alternation of the first distribution pipeline 220 and the second distribution pipeline 230, without human intervention.
In the above-described embodiment, the first distribution pipeline 220 and the second distribution pipeline 230 filter block layer 160 along its column or
Capable direction arrangement.For example, the first distribution pipeline 220 is laid with below first state filter block, the second distribution pipeline 230 is second
It is laid with below state filter block, the solarization air cap of the first distribution pipeline 220 and the second distribution pipeline 230 can be uniform aperture, can also
It is open on it nipple for uniform grafting, air is fed directly to the interior lower part of filter block.Optionally, the first distribution pipeline
220 and second distribution pipeline 230 in end face be upward uniformly provided with gas outlet.Optionally, the first distribution pipeline 220 and
Two distribution pipelines 230 uniform grafting nipple on end face upward.When it is implemented, filter block can be M type filter block or W type
Filter block, the upper surface of filter block are provided with hole, and the middle and lower part of filter block is recessed inwardly.First distribution pipeline 220 and the second distribution pipeline
230 or its grafting nipple can be inside close to filter block middle and lower part recess.
In the above-described embodiment, supporting layer 150, supporting layer 150 can be equipped between filter material layer 140 and filter block layer 160
For the boulder bed of 400mm, water distribution gas distribution can be made more uniform, prevent the hole of filter clogging filter block upper surface.Preferably, filter block
Width be no more than 300mm.In normally water inlet mode, half filter block is aeration state in pond and the other half filter block is that receipts are watery
State, because filter block is completely to spread bottom of pond, and filter block width is smaller, so half filter block aeration also can guarantee the aeration effect in whole pond.
In the present invention in a better embodiment of biological aerated filter, which is additionally provided with backwash
System, backwashing system include: the backwash air pipe 330 connecting with main aeration tube 210, the backwash water pipe connecting with outlet pipe 130
310, the backwash drainpipe 320 that 120 top set of water inlet pipe goes out.
Wherein, inlet channel 110 can be used as backwash drainage ditch；It may be provided with backwash air valve, backwash on backwash air pipe 330
It may be provided with backwash inlet valve on water pipe 310, may be provided with backwash drain valve on backwash drainpipe 320.
In the above-described embodiment, it according to single tube distribution, i.e., is only given with the first distribution pipeline (or second distribution pipeline)
Odd (or even) ordered series of numbers filter block distribution, even (or odd) ordered series of numbers filter block receive water, cancel another distribution pipeline.It transports in this way for a long time
Row, then the filtrate on even column filter block may block hardened.Meanwhile because eliminating another gas-distribution pipe, when backwash, be cannot achieve
Air water joint backwash.Then its filter effect, aeration effect, many in backwash effect inequality.
Another aspect according to the present utility model, the utility model also provide a kind of comprising above-mentioned two-tube air distribution system
The application method of biological aerated filter.
The biological aerated filter is in normally water inlet mode: inlet valve is opened, and outlet valve is opened, and guarantees 120 He of water inlet pipe
Outlet pipe 130 is normally connected to.Backwash inlet valve is closed, and backwash drain valve is closed, and backwash air valve is closed, and main aeration valve is opened,
Guarantee that backwashing system does not work.
In normally water inlet mode, when the first distributing valve 221 is opened, and the second distributing valve 231 is closed, first state filter block is
Aeration mode, the second state filter block are filtered model.When the first distributing valve 221 is closed, and the second distributing valve 231 is opened, first
State filter block is filtered model, and the second state filter block is aeration mode.Therefore normally water inlet mode when, half filter block is aeration in pond
State and the other half filter block are to receive water state (filtered model), because filter block is completely to spread bottom of pond, and filter block width is smaller (is no more than
300mm), so half filter block aeration also can guarantee the aeration effect in whole pond.
First distributing valve 221 and the second distributing valve 231 are periodically alternately opened, and the period is 2~4 hours.
Water inlet pipe 120 and inlet channel 110 of the sewage through filter tank top uniformly flow into pond, lower to pass through filter material layer respectively to stream
140, supporting layer 150 and filter block layer.It is aerated and filters in pond while carrying out to guarantee, use two-tube air distribution system.First matches
When air pipe 220 works, the first state filter block aeration of odd column, at this time sewage can by the second state filter block of even column to
Lower discharge.There is hardened generation to avoid the second state filter block of even column from not being aerated for a long time, the first distribution pipeline 220 work one
After a period (this period is adjustable, generally 2-4 hours), it is readily modified as the work of the second distribution pipeline 230, sewage can at this time
It is discharged downwards by the second state filter block of odd column.
The biological aerated filter has in backwash mode there are three types of backwash subpattern, is respectively as follows: independent air purge subpattern, list
Solely washing subpattern, air water joint backwash subpattern.It is normal to intake mode operation (normal is 4-6 days) after a certain period of time, to promote
Into the update of filter material surface biomembrane, while the impurity that water inlet is retained in filtrate is removed, needs to carry out backwash.The sequence of backwash
Consistent with common biological aerated filter: independent air purge-air water joint backwash-is individually washed.But independent air purge and air water joint
When backwash, backwash air valve and the first distributing valve 221, the second distributing valve 231 are fully open.I.e. backwash when all filter blocks operating condition
Equally, while water distribution or water distribution gas distribution simultaneously.
When independent air purge subpattern: backwash air valve, the first distributing valve 221, the second distributing valve 231 are opened, remaining valve
It is turned off；
Individually when washing subpattern: backwash inlet valve, backwash drain valve are opened, remaining valve is turned off；
When air water joint backwash subpattern: backwash air valve, the first distributing valve 221, the second distributing valve 231 are opened, backwash
Inlet valve, backwash drain valve are opened, remaining valve is closed.
Traditional aeration biofilter use filter block water distribution gas distribution, in the presence of to gas resistance, upward flow blocking filter block the problem of,
Cause filter block that can not apply to biological aerated filter always.Biological aerated filter in the utility model uses two-tube distribution system
System, successfully solves the above problem, filter block Successful utilization can be made in biological aerated filter.
According to the biological aerated filter using filter block in the utility model, obtainable beneficial effect is included at least:
1, the biological aerated filter in the utility model is equipped with two-tube air distribution system, and breaching can not be applied to expose by filter block
Bottleneck on gas biofilter.
2, the biological aerated filter principle and simple structure in the utility model, compared with traditional aeration biofilter into increasing
First distributing valve and the second distributing valve.Control principle is simple, can control the first distributing valve and second by the PLC control system time
Distributing valve unlatches and closes.
In conjunction with the explanation and practice of the utility model disclosed here, the other embodiments of the utility model are for this field
Technical staff will be readily apparent and understand.Illustrate and embodiment be regarded only as being exemplary, the utility model it is real
Scope and spirit are defined in the claims.
Claims (9)
1. a kind of biological aerated filter comprising two-tube air distribution system, which is characterized in that
The top of the biological aerated filter is equipped with water inlet pipe and/or inlet channel, and middle part is equipped with filter material layer, support from top to down
Layer and filter block layer, bottom are equipped with outlet pipe；
There is the filter block layer multiple row to be successively laid on the filter block in the biological aerated filter, wherein the filter of odd column
Brick is first state filter block, and the filter block of even column is the second state filter block；
The two-tube air distribution system includes being layed in the filter block layer of the bottom of the biological aerated filter and being laid on the filter block
First distribution pipeline and the second distribution pipeline under layer；
The first distribution pipeline is connected to each first state filter block, and the second distribution pipeline is connected to each described second
State filter block, the first state filter block and the second state filter block are laterally laid on the biofilter in a manner of being spaced apart from each other
It is interior.
2. biological aerated filter according to claim 1, which is characterized in that
The first distributing valve of first gas-distribution pipe road setting, the second distributing valve of the second gas-distribution pipe road setting, described the
One distribution pipeline and the second gas-distribution pipe route main aeration tube branch and go out, and are arranged main aeration valve on the main aeration tube, and described the
It is in the open state that one distributing valve and the second distributing valve are configured under aeration mode only one.
3. biological aerated filter according to claim 2, which is characterized in that
The biological aerated filter is additionally provided with backwashing system, and the backwashing system includes: the backwash connecting with the main aeration tube
The backwash drainpipe that air hose, the backwash water pipe connecting with the outlet pipe, the water inlet pipe top set go out；
The inlet channel is as backwash drainage ditch；Backwash air valve is provided on the backwash air pipe, on the backwash water pipe
It is provided with backwash inlet valve, is provided with backwash drain valve on the backwash drainpipe.
4. biological aerated filter according to claim 2, which is characterized in that
The two-tube air distribution system, which is additionally provided with, controls the PLC control that first distributing valve and second distributing valve automatically switch
System processed.
5. biological aerated filter according to claim 1, which is characterized in that
The supporting layer is the boulder bed of 400mm.
6. biological aerated filter according to claim 3, which is characterized in that
The width of the filter block is no more than 300mm.
7. biological aerated filter according to claim 1, which is characterized in that
The first distribution pipeline and the second distribution pipeline are uniformly provided with gas outlet in end face upward.
8. biological aerated filter according to claim 1, which is characterized in that
The first distribution pipeline and the second distribution pipeline uniform grafting nipple on end face upward.
9. biological aerated filter according to claim 7 or 8, which is characterized in that
The filter block is M type filter block or W type filter block, and the upper surface of the filter block is provided with hole, and the middle and lower part of the filter block is inside
Recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920242891.XU CN209618982U (en) | 2019-02-26 | 2019-02-26 | A kind of biological aerated filter comprising two-tube air distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920242891.XU CN209618982U (en) | 2019-02-26 | 2019-02-26 | A kind of biological aerated filter comprising two-tube air distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209618982U true CN209618982U (en) | 2019-11-12 |
Family
ID=68454906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920242891.XU Active CN209618982U (en) | 2019-02-26 | 2019-02-26 | A kind of biological aerated filter comprising two-tube air distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209618982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170446A (en) * | 2020-02-28 | 2020-05-19 | 苏州市苏创环境科技发展有限公司 | High-filter-material-layer biological aerated filter convenient to transport |
-
2019
- 2019-02-26 CN CN201920242891.XU patent/CN209618982U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170446A (en) * | 2020-02-28 | 2020-05-19 | 苏州市苏创环境科技发展有限公司 | High-filter-material-layer biological aerated filter convenient to transport |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106277558A (en) | A kind of integrate process for removing nitrogen and phosphor from sewage and the device that physical biochemistry filters | |
| CN204170467U (en) | A kind of conventional rapid filter adopting combined water and air backwash | |
| CN103936141B (en) | A kind of BAF | |
| KR20060028233A (en) | The method and device to treat rivers and lakes through the combination of upflow contact/filtration facility and artificial wetland with rolls(/mats) to grow vegetation | |
| CN103043786A (en) | Slow carbon source releasing media filter device and process with deep denitrification function | |
| US7238286B2 (en) | Combination trickling filter and overflow tank for secondary treatment of wastewater, and associated method of managing wastewater overflow | |
| CN209618982U (en) | A kind of biological aerated filter comprising two-tube air distribution system | |
| CN100506726C (en) | Steel iron wastewater coagulating sedimentation and filtration treatment system | |
| CN201239564Y (en) | Treating device of reverse filtering air water backwashing filter chamber sewage water recycling system | |
| CN112174302A (en) | Novel biological aerated filter adopting filter bricks in upward flow | |
| CN103539280A (en) | Integrated water purification device | |
| CN102491512B (en) | Denitrified deep bed biological filter tank | |
| KR100817610B1 (en) | Apparatus for removal of nonpoint source pollutant using hydrodynamic and filtration | |
| CN109650533B (en) | Biological aerated filter adopting filter bricks and water treatment method using biological aerated filter | |
| CA2866648A1 (en) | Wastewater treatment apparatus capable of performing both initial rainwater overflow treatment and primary treatment, and wastewater treatment method according to said apparatus | |
| CN1657134A (en) | Reverse filtering air water back flushing filtering pond and reverse filtering air water back flushing method | |
| CN112851031A (en) | Subsurface coupling wetland for nitrogen and phosphorus removal | |
| CN210163288U (en) | Sewage treatment device and system comprising same | |
| CN109761377A (en) | A kind of back water well formula country sewage bleeds back processing device and method | |
| CN107585952B (en) | Sewage treatment device and sewage treatment process thereof | |
| CN204865133U (en) | Sewage treatment sand filter system | |
| CN208545138U (en) | The middle-size and small-size more single arrangement systems in lattice filter tank of distributing | |
| CN114538609B (en) | Denitrification deep bed filter tank structure and secondary pouring construction method for bottom of deep bed filter tank structure | |
| CN208265956U (en) | A kind of integrated processing system proposing mark transformation for urban wastewater treatment firm | |
| CN105080188A (en) | Installation method for sewage treatment sand filter pool system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |