CN205556236U - Nitrify changeable dual -purpose biological filter of denitrification - Google Patents
Nitrify changeable dual -purpose biological filter of denitrification Download PDFInfo
- Publication number
- CN205556236U CN205556236U CN201620395469.4U CN201620395469U CN205556236U CN 205556236 U CN205556236 U CN 205556236U CN 201620395469 U CN201620395469 U CN 201620395469U CN 205556236 U CN205556236 U CN 205556236U
- Authority
- CN
- China
- Prior art keywords
- biofilter
- dual
- backwash
- air
- denitrification
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a nitrify changeable dual -purpose biological filter of denitrification, the main improvement of going on to having the biological filter function singleness now. The utility model discloses nitrify changeable dual -purpose biological filter of denitrification's air water distributor chamber is connected with the back flush air hose, the aeration pipe is installed on filter plate upper portion, aeration pipe and back flush air hose parallel connection arrive on the same air inlet manifold, air inlet manifold's inlet end is connected with at least typhoon machine, the back flush air hose with be provided with anti - flushing valve between the air inlet manifold, aeration pipe with be provided with the aeration governing valve on the air inlet manifold. The utility model discloses nitrify changeable dual -purpose biological filter of denitrification has realized nitrifying the switching with anti - nitrification treatment in same biological filter, have the advantage that equipment was economized, nitrogen and phosphorus removal efficiency is high, the back flush frequency is low.
Description
Technical field
This utility model relates to sewage treatment area, particularly relates to a kind of changeable dual-purpose biology of nitration denitrification
Filter tank.
Background technology
BAF has fully used for reference contact oxidation method and the mentality of designing of feedwater rapid filter, the biological oxygen of collection
Change process and solid-liquid separation are in one, and this technology can realize organic matter removal, nitrifying process and filtration same
Carry out in reactor.
BAF can be divided into DC type BAF according to its function and (mainly consider oxidation of coal
Filter tank), N-type BAF (consider nitrification filter tank, it is possible to BOD will be removed5Close with nitrification function
And a pond), DN type BAF (denitrification filter pool) and (filter of denitrogenation dephosphorizing of DN-P filter tank
Pond).
Flow to be divided into UBAF and lower to stream aeration and biological filter according to sewage in filter tank
Pond.
Biological aerated filter process occurs in Europe the beginning of the eighties, and owing to it has good performance, it should
Constantly expand by scope.After the large development that experienced by the intermediary and later stages eighties, to the beginning of the nineties, this
Plant technique to be mature on the whole.The nineties and after, BAF has obtained quickly developing.
Owing to having that floor space is little, reduced investment, biofilm fast, anti-impact wash that load is strong, contaminant removal efficiency
Advantages of higher, this technology is widely used in the two stage treatment of industrial wastewater, sanitary sewage, denitrogenation dephosphorizing
Tertiary treatment and the pretreatment of slightly-polluted raw water.But there is single filter tank function singleness in this technology, it is impossible to according to
Influent quality change adjusts its function；Once build up transformation difficulty bigger；Backwash is the highest；At pollutant
Reason mechanism is the clearest and the most definite, fails to give full play to process the shortcomings such as potential.
Utility model content
For the problems referred to above, this utility model provides a kind of equipment to save, denitrogenation dephosphorizing usefulness is high, backwash frequency
The changeable dual-purpose biofilter of nitration denitrification that rate is low.
For reaching above-mentioned purpose, the changeable dual-purpose biofilter of this utility model one nitration denitrification, described
Dual-purpose biofilter includes that biofilter body, described biofilter body are disposed with air water from top to bottom
Distributor chamber, filter plate, supporting layer, filter material layer, clear water layer, backwash discharge conduit and biofilter outlet canal
Road, described air water distributor chamber connects has backwash air hose, water inlet pipe, described filter plate top to be provided with aeration
Pipe；
Described aeration tube and backwash air hose are parallel-connected on same air inlet house steward, and described air enters
The inlet end of gas house steward connects at least one Fans, described backwash air hose and described air inlet house steward
Between be provided with back flush valves, described aeration tube and described air inlet house steward are provided with aerating regulation valve；
Described water inlet pipe is connected with backwash water inlet pipe and wastewater influent pipeline.
Further, described blower fan connects frequency conversion adjustment device for high.
Further, described filter plate is provided with filter.
Further, described dual-purpose biofilter also includes that piping lane, described blower fan are arranged in described piping lane.
Further, described back flush valves is pneumatically or electrically movable valve.
Further, described biofilter is the most internal is provided with dissolved oxygen meter.
Further, in described dissolved oxygen meter is arranged on described backwash discharge conduit.
Further, described blower fan has two.
When the changeable dual-purpose biofilter of this utility model nitration denitrification uses as nitrification filter tank, open and expose
Controlled atmosphere joint valve, cuts out back flush valves, and opening blower fan provides enough for nitrification filter tank aeration as Aeration fan
Air；When biofilter uses as denitrification filter pool, only need to close aerating regulation valve, close recoil
Wash valve, close blower fan.First fully opening aerating regulation valve during the backwash of biofilter, starting blower fan is
Aeration tube provides enough air air purge pre-to biofilter a period of times, closes aerating regulation valve afterwards, opens
Opening backwash intake valve, blower fan now provides enough air as backwash blower fan for Backwash pipeline, and
The normal backwashing procedures of rear startup.
The changeable dual-purpose biofilter of this utility model nitration denitrification due to blower fan can as Aeration fan and
Backwash blower fan uses, and is not required to be equipped with two set Fan Equipment, therefore can save equipment investment；Filter tank simultaneously
Can switch under the conditions of nitrification and denitrification reaction environment, can be according to entering filter tank when actual sewage processes
Sewage situation carry out nitrification or denitrification and process, efficiently solve filter tank function singleness sewage disposal the most thorough
The problem at the end；First carrying out aeration prerinse during the backwash of biofilter can make filter material layer loosen, and is just reducing
Often the backwashing pressure in backwash seasonal epidemic pathogens hydroecium, effectively extends the service life of filter plate, and backwash is more thorough
The end, reduce backwash frequency；Biofilter automatically switch between nitrification and denitrification state while space-time
Upper formation anaerobism, anoxia and aerobic replacing, this can fully excavate the denitrogenation dephosphorizing usefulness of biofilter,
New approaches are provided for promoting the usefulness of biofilter.
Accompanying drawing explanation
Fig. 1 is the top view of the changeable dual-purpose biofilter of embodiment 1 nitration denitrification；
Fig. 2 is the right view of Fig. 1.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is further described.
Embodiment 1
As shown in Figure 1, 2, the changeable dual-purpose biofilter of the present embodiment nitration denitrification includes that biofilter is originally
Body, piping lane 19.
Biofilter body have the most successively air water distributor chamber 1, filter plate 2, supporting layer 3, filter material layer 4,
Clear water layer 5, backwash water outlet channel 6 and biofilter water outlet channel 7；Connect in air water distributor chamber 1 and install
There are backwash air hose 8, water inlet pipe 16；Equipped with filter 11 on filter plate, filter plate top is provided with aeration tube 12；
Described water inlet pipe 16 is connected namely in air water distributor chamber 1 with backwash water inlet pipe 9 and wastewater influent pipeline 10
The water inlet that the water inlet pipe 16 connected i.e. enters air water distributor chamber as backwashing water enters air water as sewage again
The water inlet of distributor chamber.
Being provided with two connections in described piping lane 19 and have the blower fan 13 of converter plant, blower fan 13 is total with air inlet
Pipe 17 connects, and backwash air hose 8 and aeration tube 12 are all connected on air inlet house steward 17, and described
Back flush valves 14, described aeration tube it is provided with between backwash air hose 8 and described air inlet house steward 17
12 are provided with aerating regulation valve 15 on described air inlet house steward 17.Back flush valves 14, aerating regulation
The opening and closing of valve 15 realize aeration and the flushing in filter tank, specifically namely at aerating regulation valve 15 close
Close, back flush valves 14 is when opening, blower fan 13 as backwash blower fan by air inlet house steward 17 to instead
Blast enough air in flushing out air pipe 8 and biofilter is carried out anti-gas flushing；Close in back flush valves 14
Close, aerating regulation valve 15 is when opening, blower fan 13 as Aeration fan by air inlet house steward 17 to aeration
Blast enough air in pipe 12 and realize the Air Exposure in nitrification filter tank.
When equipment is equipped with, the air quantity of blower fan 13 and blast are equipped with by backwash Air Quantity Required and blast, work as wind
When machine 13 uses as Aeration fan, air demand can be adjusted by converter plant.Can calculate during actual motion
Another is set to standby fan arbitrarily a wherein Fans to be set to working fan on machine, and computer should be with the time-division
Do not add up the working time of wind turbine, and show, by the switching of working fan Yu standby fan, make every
The working time of Fans is the most identical.Air quantity and corresponding frequency to every Fans enter on computers
Row presets, and during actual motion, is automatically adjusted blower fan frequency according to Air Quantity Required.
In order to detect the dissolved oxygen amount in filter tank during nitration reaction, in described biofilter, it is provided with dissolved oxygen meter
18, filtrate impact dissolved oxygen meter probe during for avoiding backwash, and may be the lowest in view of water level in water outlet channel,
Therefore preferably dissolved oxygen meter 18 is arranged in backwash discharge conduit 6.
The present embodiment aerating regulation valve 15 can be automatically adjusted open degree according to Air Quantity Required, and particularly passing through will
Aerating regulation valve 15 is connected with computer control system, and computer control system detects according to dissolved oxygen meter 18
Dissolved oxygen amount controls the aperture of aerating regulation valve.
Below as a example by the up-flow biological filter that 3 biofilters are in parallel, carry out the anti-nitre of the present embodiment nitrification
Change the explanation of changeable dual-purpose biofilter workflow:
When 1, normally working, sewage flow through the most successively air water distributor chamber 1, filter 11, supporting layer 3,
Filter material layer 4, clear water layer 5, water outlet channel 6.
According to the situation entering filter tank sewage, it is judged that sewage is carried out nitration treatment or denitrification processes.
If biofilter uses as nitrification biofilter, back flush valves 14 is closed, aerating regulation valve
15 open, and air enters filter tank through aeration tube.By frequency conversion, backwash blower fan 13 air quantity is regulated to biological filter
Pond Air Quantity Required.In filter tank, set dissolved oxygen meter 16 detects the dissolved oxygen in each biofilter automatically, and by data
Transmission is to full factory PLC, if dissolved oxygen ＜ 3mg/L, then computer is automatically adjusted the unlatching of aerating regulation valve 15
Degree, until dissolved oxygen >=3mg/L.If biofilter is the parallel running of many ponds, and certain pond dissolved oxygen≤3mg/L,
Then computer is automatically adjusted the open degree of each aerating regulation valve 15, and in making each biofilter, dissolved oxygen is all higher than
Equal to 3mg/L, to meet oxygen amount needed for biofilter.
If biofilter is as denitrification bio-filter, backwash intake valve 14 cuts out, aerating regulation valve
15 close, and blower fan 13 quits work.
2, during backwash, pre-air purge is first carried out.First do not close aerating regulation valve 15, by frequency conversion by backwash
(this tolerance is wind needed for aeration Air Quantity Required and backwash to pre-air purge Air Quantity Required for the regulation of blower fan 13 air quantity
Between amount).After pre-air purge a period of time, each biofilter aerating regulation valve 15 is automatically switched off, and opens backwash
Valve 14, starts normal counter-flushing process.
It is pneumatically or electrically movable valve as back flush valves described in a kind of alternative embodiment.
The changeable dual-purpose biofilter of the present embodiment nitration denitrification has the advantage that
1, when biofilter uses as nitrification filter tank, open aerating regulation valve, close back flush valves,
Open blower fan.Now by frequency conversion, fan delivery regulation is carried out aeration, simultaneously filter tank to aeration Air Quantity Required
Interior dissolved oxygen meter monitors dissolved oxygen in filter tank in real time, and sends data to full factory PLC, by computer control
Adjust regulation valve open degree, it is ensured that oxygen amount needed for the nitrification of filter tank.Aeration wind the most individually it is equipped with due to nitrification filter tank
Machine, therefore can save equipment investment.
2, when biofilter uses as denitrification filter pool, only need to close aerating regulation valve, close backwash
Valve, closes blower fan.Owing to single seat filter tank can automatically switch to nitrification filter tank or denitrification filter pool, therefore may be used
Needing to transform front establishment method as rear-mounted denitrification technique according to process operation, vice versa.This be
Sewage treatment plant's operation and transformation provide a kind of new method, can cut as the case may be during actual operation
Change.
3, start blower fan during the backwash of biofilter, fully open aerating regulation valve pre-air purge a period of time, it
Rear closedown aerating regulation valve, unlatching back flush valves, start normal backwashing procedures.Pre-air purge can make filter
The bed of material loosens, and reduces the backwashing pressure in normal backwash seasonal epidemic pathogens hydroecium, effectively extends the use of filter plate
In the life-span, backwash is more thorough, reduces backwash frequency.
4, on space-time, form anaerobism while automatically switch between nitrification and denitrification state in biofilter, lack
Oxygen and aerobic replacing, this can fully excavate the denitrogenation dephosphorizing usefulness of biofilter, for promoting biofilter
Usefulness provide new approaches.
Above, preferred embodiment the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art, can be light in the technical scope that this utility model discloses
The change being readily conceivable that or replacement, all should contain within protection domain of the present utility model.Therefore, this practicality
Novel protection domain should be as the criterion with the protection domain that claim is defined.
Claims (8)
1. the changeable dual-purpose biofilter of nitration denitrification, it is characterised in that: described dual-purpose biofilter
Including biofilter body, described biofilter body be disposed with from top to bottom air water distributor chamber, filter plate,
Supporting layer, filter material layer, clear water layer, backwash discharge conduit and biofilter water outlet channel, described air water divides
Joining room connection has backwash air hose, water inlet pipe, described filter plate top to be provided with aeration tube；
Described aeration tube and backwash air hose are parallel-connected on same air inlet house steward, and described air enters
The inlet end of gas house steward connects at least one Fans, described backwash air hose and described air inlet house steward
Between be provided with back flush valves, described aeration tube and described air inlet house steward are provided with aerating regulation valve；
Described water inlet pipe is connected with backwash water inlet pipe and wastewater influent pipeline.
The changeable dual-purpose biofilter of nitration denitrification the most according to claim 1, it is characterised in that:
Described blower fan connects frequency conversion adjustment device for high.
The changeable dual-purpose biofilter of nitration denitrification the most according to claim 1, it is characterised in that:
On described filter plate, filter is installed.
The changeable dual-purpose biofilter of nitration denitrification the most according to claim 1, it is characterised in that:
Described dual-purpose biofilter also includes that piping lane, described blower fan are arranged in described piping lane.
The changeable dual-purpose biofilter of nitration denitrification the most according to claim 1, it is characterised in that:
Described back flush valves is pneumatically or electrically movable valve.
The changeable dual-purpose biofilter of nitration denitrification the most according to claim 1, it is characterised in that:
Described biofilter is the most internal is provided with dissolved oxygen meter.
The changeable dual-purpose biofilter of nitration denitrification the most according to claim 6, it is characterised in that:
Described dissolved oxygen meter is arranged in described backwash discharge conduit.
The changeable dual-purpose biofilter of nitration denitrification the most according to claim 1, it is characterised in that:
Described blower fan has two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620395469.4U CN205556236U (en) | 2016-05-04 | 2016-05-04 | Nitrify changeable dual -purpose biological filter of denitrification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620395469.4U CN205556236U (en) | 2016-05-04 | 2016-05-04 | Nitrify changeable dual -purpose biological filter of denitrification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205556236U true CN205556236U (en) | 2016-09-07 |
Family
ID=56805818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620395469.4U Active CN205556236U (en) | 2016-05-04 | 2016-05-04 | Nitrify changeable dual -purpose biological filter of denitrification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205556236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083438A (en) * | 2018-01-26 | 2018-05-29 | 中持水务股份有限公司 | To the double film nitrification biofilters of stream BAF and MBBR under one kind |
-
2016
- 2016-05-04 CN CN201620395469.4U patent/CN205556236U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083438A (en) * | 2018-01-26 | 2018-05-29 | 中持水务股份有限公司 | To the double film nitrification biofilters of stream BAF and MBBR under one kind |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101643269B (en) | Biological aerated filter and process | |
| CN101381155B (en) | Bio-ecological combination method for effluent purification and reclamation and apparatus | |
| CN111704323A (en) | High-efficient sewage treatment system of modularization integrated form | |
| CN100494088C (en) | Biological reactor of internal circulating and double filtering | |
| CN104016474B (en) | Waste disposal plant | |
| CN111592185A (en) | Integrated sewage treatment device and method for deep nitrogen and phosphorus removal | |
| CN205556236U (en) | Nitrify changeable dual -purpose biological filter of denitrification | |
| CN100336743C (en) | Jet-flow aeration biological filtering tank | |
| CN1821120A (en) | Gas lifting alternative circulation flow composite filter material filter pool | |
| CN212334940U (en) | Integrated sewage treatment device for deep denitrification and dephosphorization | |
| CN114262122A (en) | Rural domestic sewage deep denitrification integrated device and method | |
| CN215288408U (en) | Biological filter integrated device | |
| CN213171940U (en) | High-efficient sewage treatment system of modularization integrated form | |
| CN212425575U (en) | Membrane bioreactor | |
| CN210313696U (en) | Improved denitrification deep bed filter | |
| CN107986435A (en) | A kind of efficient up-flow biological reaction apparatus and its operation method and application | |
| CN208802968U (en) | A kind of modified form rural domestic sewage treatment system | |
| CN111018111A (en) | Integrated rural sewage treatment device | |
| CN216513325U (en) | Nitrify deep bed filtering pond of denitrification and filterable multiple use type | |
| CN211595172U (en) | Composite anaerobic membrane bioreactor system | |
| CN211470928U (en) | Integrated rural sewage treatment device | |
| CN211644779U (en) | Autotrophic nitrogen removal integrated system based on MBBR | |
| CN207418365U (en) | A kind of sewage disposal combined biological filter | |
| CN111362399A (en) | Multistage A/O-MBR integrated sewage treatment device | |
| CN111320274A (en) | Integrated sewage treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |