CN208055012U - A kind of sewage denitrification processing system - Google Patents
A kind of sewage denitrification processing system Download PDFInfo
- Publication number
- CN208055012U CN208055012U CN201721605311.6U CN201721605311U CN208055012U CN 208055012 U CN208055012 U CN 208055012U CN 201721605311 U CN201721605311 U CN 201721605311U CN 208055012 U CN208055012 U CN 208055012U
- Authority
- CN
- China
- Prior art keywords
- water
- denitrification
- bed filter
- sewage
- denitrification deep
- 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)
Abstract
The utility model is related to a kind of sewage denitrification processing system, belong to and sewage treatment field.Including denitrification deep-bed filter and return-flow system；The clear water of the water outlet side is simultaneously introduced into the sewage of the influent side by the water outlet side and influent side of the return-flow system connection denitrification deep-bed filter, with the total nitrogen in dilute sewage.Reduce influence of the sewage total nitrogen concentration to denitrogenation, expand the water inlet scope of application of denitrification deep-bed filter, the gas for reducing denitrification deep-bed filter blocks up probability, extend the time of the continuous denitrogenation of this system, in addition, this system design is simple, and the effect can be realized only with a circuit system, improve the generalization of this system and reduce the cost that puts into operation of this system.The stifled probability that filter material layer is blocked with suspended particulate of gas is reduced, denitrification deep-bed filter denitrification is abundant, and the accumulation of no nitrite nitrogen improves the utilization ratio of equipment, can save the energy.
Description
Technical field
The utility model is related to a kind of sewage denitrification processing system, belong to and sewage treatment field.
Background technology
As sewage treatment plant is discharged the raising of standard by country, denitrification deep-bed filter pond is obtained with its unique advantage
Widely apply.Compared to other techniques, denitrification deep-bed filter technological process is simple, effect stability, and effluent quality is good, throws
Money is few, and low energy consumption, economical and efficient.
Nitrate nitrogen is mainly first converted into nitrogen by denitrification deep-bed filter using denitrifying bacteria using the carbon source in water, complete
It is removed at total nitrogen in sewage.Since the speed that nitrogen is discharged in denitrification deep-bed filter inner filtering layer has the upper limit, when nitrogen generates speed
When degree is more than the velocity of discharge, the nitrogen generated in denitrification process can be gathered gradually in filtering layer, blocked the gap of filtering layer, caused water
" gas is stifled " phenomenon can not be generated normal through filtering layer.It is stifled directly related with the concentration of nitrate nitrogen in sewage to generate gas, causes nitre
The application of the higher sewage denitrification deep-bed filter of state nitrogen content is restricted.
In addition, carbon source adds in denitrification deep-bed filter filter process amount and levels of precision directly affect operating cost
With denitrification denitrogenation effect, since, denitrification deep-bed filter has excellent denitrification capability, at denitrification deep-bed filter
The content of total nitrogen is far below after reason, national clear water drainage requirement, and a large amount of production capacity is caused to waste.
In existing patent CN204803073U, a kind of a kind of denitrification depth bed filter applied to advanced treatment of wastewater is disclosed
Pool structure, using setting back-flushing structure in the patent, can denitrification deep-bed filter occur gas it is stifled when, utilize reversed gas
Stream or flow dredge filtering layer, and the gas that can alleviate to a certain extent of the program blocks up phenomenon；But it is the absence of addition carbon source
Structure, can not take into account simultaneously carbon source utilized by microorganism, in filter tank carbon source uniformly, protection filter tank structure and other effects.
Utility model content
The purpose of this utility model is that solving the above problems, the utility model is devised, reduces sewage total nitrogen concentration pair
The influence of denitrogenation expands the water inlet scope of application of denitrification deep-bed filter, and the gas for reducing denitrification deep-bed filter blocks up probability, extends
The time of the continuous denitrogenation of this system can be realized the effect only with a circuit system, carry in addition, this system design is simple
The generalization of high this system and the cost that puts into operation for reducing this system.
Technical solution adopted by the utility model to solve its technical problems is：
The utility model discloses a kind of sewage denitrification processing system, including denitrification deep-bed filter and return-flow system；Institute
It states the water outlet side of return-flow system connection denitrification deep-bed filter and influent side and the clear water of the water outlet side is introduced into the water inlet
In the sewage of side, with the total nitrogen in dilute sewage.
In this structure, return line regulating valve and reflux water pump are set on the pipeline of return-flow system, return line is adjusted
Valve and reflux water pump can be controlled by PLC system, and coordinate water inlet nitrate nitrogen analyzer, realize that backflow water yield is adjusted to control entrance
The sewage nitrate nitrogen content of denitrification deep-bed filter reduces the stifled generation probability of gas, it is ensured that denitrification deep-bed filter system denitrification
It is normally carried out with filtering.
Further, further include carbon source mixing pit for being mixed into from carbon source to sewage, it is deep that carbon source mixing pit is set to denitrification
The influent side in bed filter tank, and return-flow system is connected in carbon source mixing pit or the inlet pipeline of carbon source mixing pit.
It can be arranged in carbon source mixing pit for there is carbon source dosing system, which can be according to wastewater influent
The content detection value of nitrate nitrogen at nitrate nitrogen and clear water reserviors water outlet determines the dosage of carbon source, then makes dirt using mechanical agitation
After water is sufficiently mixed with carbon source, the water distribution uniformity into denitrification deep-bed filter.
Further, further include backwashing system for being passed through gas or/and from clear water to denitrification deep-bed filter, gas
Or/and clear water is passed through direction inversely in the filtering direction of denitrification deep-bed filter.
Nitrogen is accumulated in filter material layer, and backwashing system discharges the gas accumulated in filtering layer by individual flow back flush
Body reduces the running head loss in filter tank, ensures filter filtering velocity.Suspended particulate substance is trapped in filter material layer in sewage
When the filtering bed of material being made to block, backwashing system is by using gas or/and clear water alternating or mixing back flush filter material layer, to dredge
Logical filter material layer.
Further, denitrification deep-bed filter is followed successively by the gentle water Distribution Layer of quartzy sand filter blanket, supporting layer from top to bottom；Recoil
It washes the system connectivity air water Distribution Layer and is passed through gas or/and clear water to air water Distribution Layer.
Ensure being evenly supplied for gas or flow using air water Distribution Layer in the denitrification deep-bed filter structure, to reduce
Denitrification deep-bed filter is only by the probability of local douche.
Further, it is equipped with catch basin in the bottom of air water Distribution Layer, catch basin is deep with backwashing system and denitrification respectively
The water outlet side connection in bed filter tank.
The catch basin can be conducive to the discharge of filtered clear water, further, it is possible to be conducive to what backwashing system was passed through
The uniformly dispersing of gas and flow.
Further, the backwashing system includes back purge system, the back purge system include backwash water inlet pipe and
The clear water of denitrification deep-bed filter water outlet side is injected denitrification depth by backwash pump, backwash pump by backwashing water inlet pipe
The bottom in bed filter tank.The back purge system can realize that the reversed of flow is passed through, to which the gas of effectively dredging filter material layer blocks up phenomenon.
Further, the backwashing system includes backwash wind turbine；Wind turbine is backwashed by backwashing air inlet pipe and anti-nitre
Change the bottom connection of deep-bed filter.It backwashes wind turbine and coordinates back purge system, it is effective to dredge the stifled of suspended particulate in filter material layer
Plug.
Further, further include surmounting system, surmount inlet pipeline and the filter of denitrification depth bed of system connectivity carbon source mixing pit
Sewage is simultaneously introduced into before mixed carbon source in the clear water of the water outlet side by the water outlet side in pond.This, which surmounts system, carbon is being added
Before source, sewage is drawn and is imported in the clear water of water outlet side, to increase the total nitrogen concentration in clear water, so that this system is exported clear
Water total nitrogen concentration tends to discharging standards, and total nitrogen concentration in clear water is avoided to be far below carbon source wave caused by discharging standards
Take.
Further, further include clear water reserviors and cesspool, the water outlet side of denitrification deep-bed filter is respectively communicated with clear water reserviors and dirt
Pond, wherein the sewage filtered out flows into cesspool, the clear water filtered out flows into clear water reserviors；Surmount the outlet pipe of system connectivity clear water reserviors
Road.
Further, it is provided with blender and water inlet nitrate nitrogen analyzer at carbon source mixing pit, is arranged at outlet pipeline
Have and effluent nitrate-nitrogen analyzer.It can be improved in this system by water inlet nitrate nitrogen analyzer and effluent nitrate-nitrogen analyzer
Total nitrogen control accuracy.
The beneficial effects of the utility model are：
1. the system of the utility model, by the way that return-flow system is arranged, from the water outlet after clear water reserviors reflow treatment to sewage into
The nitrate nitrogen of water is diluted, and the requirement of denitrification deep-bed filter nitrate is met by the adjusting of backflow water yield, is expanded
The water inlet scope of application of denitrification deep-bed filter.
2. setting provided by the utility model surmounts pipe-line system, make part of contaminated water directly with denitrification deep-bed filter
Clear water water outlet mixing, then discharge.It disclosure satisfy that denitrogenation standard as defined in difference, both realized appropriate denitrogenation, avoided nitre state
The accumulation of nitrogen, and carbon source is saved, reduce operating cost.
3. provided by the utility model by instead from the design for the system of washing, reducing gas and blocking up and suspended particulate blocking filter material layer
Probability, denitrification deep-bed filter denitrification is abundant, and the accumulation of no nitrite nitrogen improves the utilization ratio of equipment, Neng Goujie
Save the energy.
4. flexible design provided by the utility model, according to the nitrate of water inlet and the nitrate nitrogen of water outlet control effect
Fruit, reservation return-flow system that can be selective surmount system or increase filter element, can generate new deformation technique,
Adapt to new different requirements.
Description of the drawings
Fig. 1 is the structure chart of this sewage denitrification processing system.
Reference numeral：1- carbon source mixing pits, 2- denitrification deep-bed filters, 3- clear water reserviors, 4- cesspools, 5- backwash wind
Machine, 6- backwash pumps, 7- reflux water pumps, 8- sewage pumps, 9- wastewater influent control valves, 10- Graceful water regulating valves, 11- are anti-
Water inlet control valve is rinsed, 12- sewage goes out water regulating valve, 13- return line regulating valves, and 14- surmounts pipeline regulating valve, 15- recoils
Wash air intake control valve, 16- catch basins, 17- liquid level gauges.
Specific implementation mode
Embodiment 1
As shown in Figure 1, a kind of sewage denitrification processing system of the utility model, including denitrification deep-bed filter 2, reflux
System, clear water reserviors 3, cesspool 4, carbon source mixing pit 1, surmounts system and PLC control system at backwashing system.
Denitrification deep-bed filter 2 is followed successively by the gentle water Distribution Layer of quartzy sand filter blanket, supporting layer, air water Distribution Layer from top to bottom
Bottom be equipped with catch basin 16；2 top of denitrification deep-bed filter is equipped with liquid level gauge 17 and distributing channel, and distributing channel surrounding is simultaneously provided with
Weir plate.
Clear water reserviors 3 and cesspool 4 are set to the water outlet side of denitrification deep-bed filter 2, and catch basin 16 is connected by going out water regulating valve
Logical clear water reserviors 3；Outlet of sewer positioned at 2 top of denitrification deep-bed filter goes out water regulating valve 12 by sewage and connects cesspool 4.Filter
The sewage gone out flows into cesspool 4, and the clear water filtered out flows into clear water reserviors 3.
Carbon source mixing pit 1 is set to the influent side of denitrification deep-bed filter 2 and for the carbon for being mixed into carbon source into sewage
Source mixing pit 1 is equipped with blender in carbon source mixing pit 1；Carbon source mixing pit 1 connects denitrification by wastewater influent control valve 9
Deep-bed filter 2；The sewage of mixed carbon source in carbon source mixing pit 1 flows under the influence of gravity into the water distribution of denitrification deep-bed filter 2
In canal, and go out to overflow uniformly to flow into denitrification deep-bed filter 2 from the weir plate of distributing channel.
Return-flow system includes that reflux water pump 7, return line regulating valve 13 and respective line, one end of return-flow system are communicated to
On the inlet pipeline of the water inlet of carbon source mixing pit 1, on the outlet pipeline for the water outlet that the other end is connected to clear water reserviors 3,
Clear water in clear water reserviors 3 is introduced into carbon source mixing pit 1 by reflux water pump 7, and the total nitrogen in dilute sewage.
Backwashing system includes back purge system and backwash wind turbine 5, and back purge system includes backwash water inlet control valve
11, water inlet pipe and backwash pump 6 are backwashed, backwash pump 6 and backwash water inlet control valve 11 are connected on backwash water inlet
Guan Shang, the one end for backwashing water inlet pipe is connected to clear water reserviors 3, the other end is connected to the catch basin 16 of denitrification deep-bed filter 2；Instead
Clear water in clear water reserviors 3 is injected into the bottom of denitrification deep-bed filter 2 by flush water pump 6.Backwash wind turbine 5 by backwash into
Tracheae is connected to 2 bottom of denitrification deep-bed filter.It is logical to denitrification deep-bed filter 2 respectively to backwash wind turbine 5 and backwash pump 6
Enter gas and clear water, the filtering direction contrary for being passed through direction and denitrification deep-bed filter 2 of gas and clear water.
It includes surmounting pipeline and to surmount pipeline regulating valve 14 to surmount system, surmounts pipeline regulating valve 14 and is connected on and surmounts pipeline
On one end be connected to 1 water inlet of carbon source mixing pit, the other end is connected on the outlet pipeline of clear water reserviors 3.Opening surmounts pipe
Road regulating valve 14, sewage can be mixed directly by surmounting pipeline with the clear water in outlet pipeline.
It is provided with nitrate nitrogen analyzer at carbon source mixing pit 1, is provided at outlet pipeline and is analyzed with effluent nitrate-nitrogen
Instrument.PLC control system is electrically connected with two nitrate nitrogen analyzers respectively, while controlling each regulating valve, water according to setting program
Pump, wind turbine etc..Two nitrate nitrogen analyzers are respectively intake NO3-N analyzers and water outlet NO3-N analyzers.
The water pump 7 that flows back can be immersible pump.
Between carbon source mixing pit 1 and clear water reserviors 3 can side by side multiple denitrification deep-bed filters 2, each denitrification deep-bed filter 2
Return-flow system and backwashing system is respectively configured.
Embodiment 2
The filtering process of mechanism in embodiment 1 is as follows：
Carbon source mixture length：
Sewage, which passes through, enters carbon source mixing pit 1, and carbon source is mixed into carbon source mixing pit 1, and blender stirs carbon source mixing pit
1, after sewage and carbon source are sufficiently mixed, under the effect of gravity, mixed sewage flows into the water distribution on 2 top of denitrification deep-bed filter
It in slot or distributing channel, and is overflowed from water distributing trough or the weir plate of distributing channel surrounding, and the uniform cloth into denitrification deep-bed filter 2
Water；Carbon source dosage is the content according to the NO3-N of water inlet NO3-N analyzers monitoring and the feedback for being discharged NO3-N analyzers
What data determined.
The filtering of denitrification deep-bed filter 2 and denitrification process：
Sewage converges after sequentially passing through the quartzy sand filter blanket, supporting layer, air water Distribution Layer of denitrification deep-bed filter 2 from up to down
Enter the catch basin 16 of filter tank bottom；Suspended matter in sewage can be trapped in quartzy sand filter blanket, while be attached to quartzy sand filtration
Denitrifying bacteria on layer carries out denitrification denitrogenation reaction using the carbon source in water, nitrate nitrogen, nitrite nitrogen, completes to hang in sewage
Float matter and total nitrogen removal.
Surmount system flow：
PLC control system control surmounts pipeline regulating valve 14, surmounts water to adjust, to before meeting discharge standard
It puts, reduces the inflow of denitrification deep-bed filter 2, to save carbon source, the adjusting for surmounting water is according to NO3-N points of water outlet
The nitrate nitrogen of analyzer detection requires to regulate and control.
Effluent recycling process：
PLC control system utilizes backflow water yield tune by water pump 7 and the adjusting backflow water yield of return line regulating valve 13 of flowing back
Control water inlet nitrate or total nitrogen concentration are mainly adjusted backflow water yield according to water inlet NO3-N analyzers testing result.
Exiting water process：
PLC control system controls Graceful water regulating valve 10 according to the test position of liquid level gauge 17, the water outlet of clear water reserviors 3 with
Surmount the outlet of system, mixing water outlet；NO3-N analyzers, PLC control system are provided on outlet conduit upon mixing
Surmount water, and the nitrate nitrogen content of indirect control final outflow water according to by nitrate nitrogen content adjusting；2 bottom of denitrification deep-bed filter
Portion is connected with clear water reserviors 3, and clear water is inputted clear water reserviors 3 by liquid level static pressure.
Drive nitrogen process：
Closing surmounts pipeline regulating valve 14, wastewater influent control valve 9, reflux water pump 7, return line regulating valve 13 and clear water
Go out water regulating valve 10, open backwash inlet regulating valve and backwash pump 6, backwashes 2-3 minutes, closing backwash pump 6,
Backwash water inlet modulation valve；It completes to drive nitrogen process.It reopens and surmounts pipeline regulating valve 14, wastewater influent control valve 9, recirculation water
Pump 7, return line regulating valve 13 and Graceful water regulating valve 10.
It is exactly to discharge the gas accumulated in denitrification deep-bed filter 2 by individual clear water back flush to drive nitrogen process,
Ensure that filter speed, whole process are automatically performed under PLC system control.
Backwash process：
Closing surmounts pipeline regulating valve 14, wastewater influent control valve 9, reflux water pump 7, return line regulating valve 13, clear water
Go out water regulating valve 10；Sewage outlet water control valve, backwash air intake control valve 15, backwash wind turbine 5 are opened, gas rushes 3-5min, makes
Filtering layer loosens；Then, backwash inlet regulating valve and backwash pump 6 are opened, air water is mixed to rush 12-15min；Finally, it closes anti-
Wind turbine 5, backwash air intake control valve 15 are rinsed, after carrying out independent water rinsing 5min, closes backwash pump 65, backwash water inlet
Regulating valve, sewage outlet water control valve complete backwash process.It reopens and surmounts pipeline regulating valve 14, wastewater influent control valve
9, flow back water pump 7, return line regulating valve 13, Graceful water regulating valve 10.Whole process is automatic complete under PLC system control
At.
Following parameter can be used：This system water inlet NO3-N concentration 50mg/l, water outlet a concentration of 15mg/l of NO3-N, denitrification
Filter tank water inlet NO3-N concentration 30mg/l, are discharged a concentration of 10mg/l of NO3-N, surmount 12.5% that water is system water inlet, reflux
Flow is the 58% of denitrification filter pool clear water water yield, system nitrogen removal rate 70%；The quartzy sand filter blanket of denitrification deep-bed filter 2
Height 1.83m, grain size 2-3mm, support layer thickness 0.38mm-38mm；Denitrification deep-bed filter 2 drives nitrogen time interval 2h；Recoil
It washes as period 12h, air purge 4min, air water joint is mixed to rush 12min, individually washes 6min.Under the parameter, 5% or more carbon source is saved.
Embodiment 3
On the basis of the structure of embodiment 1, return-flow system can be only set, be not provided with surmounting system.
Following parameter can be used：System water inlet NO3-N concentration 45mg/l, water outlet a concentration of 8mg/l of NO3-N, denitrification filter
Pond water inlet NO3-N concentration 25mg/l, water outlet NO3-N concentration 8mg/l, then it is 0 to surmount water, and regurgitant volume is denitrification filter pool clear water
The 80% of water yield, system nitrogen removal rate 82.2%；2 quartz sand filter height 2.44m of denitrification deep-bed filter, grain size 2-
3mm, support layer thickness 0.38mm-38mm；Denitrification deep-bed filter 2 drives nitrogen time interval 2h；Backwash is period 12h, air purge
5min, air water joint is mixed to rush 12min, individually washes 5min.
Embodiment 4：
On the basis of embodiment 1, when nitrate nitrogen content of intaking is relatively low, closing volume system, opening surmounts system.
Following parameter can be used：System water inlet NO3-N concentration 30mg/l, water outlet NO3-N concentration 15mg/l, denitrification filter pool
NO3-N concentration of intaking 30mg/l, water outlet NO3-N concentration 10mg/l surmount 25% that water is system water inlet, regurgitant volume 0, work
Skill nitrogen removal efficiency 50%；2 quartz sand filter height 1.83m of denitrification deep-bed filter, grain size 2-3mm, support layer thickness 38mm；Instead
It nitrifies deep-bed filter 2 and drives nitrogen time interval 2h；Backwash is period 12h, air purge 3min, and air water joint is mixed to rush 15min, independent water
Wash 2min.
Above-described embodiment does not limit the embodiments just for the sake of clearly illustrating done citing.For
For those skilled in the art, other different forms of changes or modifications may be made based on the above description.
There is no necessity and possibility to exhaust all the enbodiments.And obvious changes or variations extended from this are still
In the scope of protection of the utility model.
Claims (6)
1. a kind of sewage denitrification processing system, which is characterized in that including denitrification deep-bed filter (2), return-flow system, surmount and be
System, carbon source mixing pit (1) and backwashing system；Denitrification deep-bed filter (2) is followed successively by quartzy sand filter blanket, supporting layer from top to bottom
Gentle water Distribution Layer；Backwashing system is connected to the air water Distribution Layer and is passed through gas or/and clear water to air water Distribution Layer；Reflux system
The water outlet side of system connection denitrification deep-bed filter (2) and influent side and the dirt that the clear water of the water outlet side is introduced to the influent side
In water, with the total nitrogen in dilute sewage；Surmount the inlet pipeline and denitrification deep-bed filter of system connectivity carbon source mixing pit (1)
(2) sewage is simultaneously introduced into before mixed carbon source in the clear water of the water outlet side by water outlet side；Carbon source mixing pit (1) is used for dirt
Carbon source is mixed into water, carbon source mixing pit (1) is set to the influent side of denitrification deep-bed filter (2), and return-flow system is connected to carbon source
In mixing pit (1) or the inlet pipeline of carbon source mixing pit (1)；Backwashing system is used to be passed through gas to denitrification deep-bed filter (2)
Body or/and clear water, gas or/and clear water are passed through direction inversely in the filtering direction of denitrification deep-bed filter (2).
2. sewage denitrification processing system as described in claim 1, which is characterized in that be equipped with collection in the bottom of air water Distribution Layer
Sink (16), catch basin (16) are connected to the water outlet side of backwashing system and denitrification deep-bed filter (2) respectively.
3. sewage denitrification processing system as claimed in claim 2, which is characterized in that the backwashing system includes backwash
Device, the back purge system include backwash water inlet pipe and backwash pump (6), backwash pump (6) by backwash into
The clear water of denitrification deep-bed filter (2) water outlet side is injected the bottom of denitrification deep-bed filter (2) by water pipe.
4. sewage denitrification processing system as claimed in claim 3, which is characterized in that the backwashing system includes backwash
Wind turbine (5)；Backwash wind turbine (5) is connected to by backwashing air inlet pipe with the bottom of denitrification deep-bed filter (2).
5. sewage denitrification processing system as described in claim 1, which is characterized in that further include clear water reserviors (3) and cesspool
(4), the water outlet side of denitrification deep-bed filter (2) is respectively communicated with clear water reserviors (3) and cesspool (4), wherein the sewage filtered out flows into
Cesspool (4), the clear water filtered out flow into clear water reserviors (3)；Surmount the outlet pipeline of system connectivity clear water reserviors (3).
6. sewage denitrification processing system as claimed in claim 5, which is characterized in that be provided at carbon source mixing pit (1)
Blender and water inlet nitrate nitrogen analyzer, are provided with and effluent nitrate-nitrogen analyzer at outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721605311.6U CN208055012U (en) | 2017-11-27 | 2017-11-27 | A kind of sewage denitrification processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721605311.6U CN208055012U (en) | 2017-11-27 | 2017-11-27 | A kind of sewage denitrification processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208055012U true CN208055012U (en) | 2018-11-06 |
Family
ID=63996776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721605311.6U Active CN208055012U (en) | 2017-11-27 | 2017-11-27 | A kind of sewage denitrification processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208055012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717989A (en) * | 2019-03-22 | 2020-09-29 | 湖北瀚能环保工程有限公司 | Denitrification concentration and head loss weight calculation control gas variable period release system |
| CN112142197A (en) * | 2020-09-17 | 2020-12-29 | 安徽中环环保科技股份有限公司 | Autotrophic denitrification filter sewage treatment system |
-
2017
- 2017-11-27 CN CN201721605311.6U patent/CN208055012U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717989A (en) * | 2019-03-22 | 2020-09-29 | 湖北瀚能环保工程有限公司 | Denitrification concentration and head loss weight calculation control gas variable period release system |
| CN112142197A (en) * | 2020-09-17 | 2020-12-29 | 安徽中环环保科技股份有限公司 | Autotrophic denitrification filter sewage treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206720846U (en) | A kind of modified perseverance water level denitrification deep-bed filter | |
| CN207566980U (en) | A kind of upward flow denitrification deep-bed filter system | |
| CN107935174A (en) | A kind of sewage denitrification processing system | |
| CN208055012U (en) | A kind of sewage denitrification processing system | |
| CN207137521U (en) | A kind of sewage disposal device of precipitation and filtering integral | |
| CN204017466U (en) | A kind of efficient water purification V-type filter tank | |
| CN206762349U (en) | A kind of energy-saving sewage-treatment plant | |
| CN108635919A (en) | A kind of Aerated gas-water back-impacting washing method without backwash water pump and backwash pond | |
| CN111115990A (en) | Denitrification filter tank system | |
| CN109534622A (en) | A kind of source water treatment system and its processing method | |
| CN105461180A (en) | Water quality purification integrated device and method for eutrophic water | |
| CN206414820U (en) | Space-changeable type fiber bundle filter | |
| CN101732904A (en) | Filter device backwashing system | |
| CN108483794B (en) | Sewage treatment system | |
| CN102276052B (en) | Backwashing apparatus and method for aeration biofilter with lightweight filter material | |
| CN206184064U (en) | High -efficient steel fibre filtering pond | |
| CN211486826U (en) | Water purification and filtration system capable of reducing backwashing water consumption | |
| CN211896560U (en) | Denitrification filter tank system | |
| CN211497306U (en) | Deep bed denitrification filter | |
| CN209010334U (en) | A kind of multidirectional stream biofiltration device | |
| CN108083507A (en) | A kind of integrated form Water feeding treatment device and processing method | |
| CN204356134U (en) | A kind of upward flowing type BAF | |
| CN203494236U (en) | Novel high-efficiency active sand filtering system | |
| CN208327780U (en) | Inoranic membrane sludge condensation reaction tank | |
| CN208561942U (en) | A kind of Water feeding treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |