CN206512077U - A kind of combination filter tank that mark transformation is proposed for sewage plant - Google Patents
A kind of combination filter tank that mark transformation is proposed for sewage plant Download PDFInfo
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- CN206512077U CN206512077U CN201720200210.4U CN201720200210U CN206512077U CN 206512077 U CN206512077 U CN 206512077U CN 201720200210 U CN201720200210 U CN 201720200210U CN 206512077 U CN206512077 U CN 206512077U
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Abstract
A kind of combination filter tank that mark transformation is proposed for sewage plant, it is related to sewage disposal technology, including being sequentially communicated the DN biofilters of setting, combination lift pump room, CN biofilters and clear water reserviors by pipeline or connection channel, DN biofilters are with CN biofilters equipped with shared three-stage air water reverse flushing device, and CN is additionally provided with aerator in biofilter.This programme provides a kind of combination filter tank that mark transformation is proposed for sewage plant, combination denitrification and aeration system, is a kind of Sewage Biological Treatment efficient denitrification technology, and the sewage treatment plant's high standard that is particularly suitable for use in goes out the transformation of water extraction mark, with advantages below：It is not easily blocked, rinses that easy, filtering cloth head is small, pollutant carrying capacity is strong, the features such as treatment effeciency is high, effluent quality is good；On the one hand engineering construction investment is saved, the too high operation maintenance inconvenience of pond body is on the other hand avoided.
Description
Technical field
The utility model is related to sewage disposal technology, more particularly to a kind of combination filter tank that mark transformation is proposed for sewage plant.
Background technology
The problems such as some regional quality of water environment of current China are poor, Ecology is impaired seriously, environment hidden danger is more is very prominent,
Body eutrophication has jeopardized agricultural, fishery, tourist industry etc., and the safety of drinking water source is constituted a threat to, and water pollution has been restricted
The sustainable development of urban economy, and the living environment quality and health of people are affected, therefore, according to receiving water body environment
Requirement, various regions sewage is discharged into water body standard improve constantly, particularly have strict control standard to nitrogen and phosphorus content.
Anti-nitration reaction refers to nitrate nitrogen（NO3-N）With cultured water (NO2- N) in the presence of denitrifying bacterium, it is reduced
For the process of gaseous nitrogen.Main growth denitrifying bacteria in denitrification filter pool, denitrifying bacteria is a kind of heterotroph amphimicrobian
Bacterium, under conditions of aerobic, is breathed using oxygen, under anaerobic, with（NO3-N）For electron acceptor, with organic substrates
For electron donor, a part of nitrate-nitrogen reduction into nitrogen（N2）Discharge, while another part nitrate nitrogen is converted into micro-
Living matter needed for biology itself, to reach the purpose for removing ammonia nitrogen.
In the dephosphorization denitrogenation process of technical to built sewage treatment plant, run into commonplace also more difficult
The problem of problem is TN indexs, the existing process of sewage treatment plant is difficult to meet the requirement that TN proposes mark transformation, it is necessary to using reinforcing
Denitrogenation new technology.According to a large amount of Operational Data Analysis of existing sewage plant, as long as front end aerobic section is reasonable in design, normal operation,
COD、BOD5、NH3The indexs such as-N typically can stably reaching standard, therefore the selection of advanced treatment process need to be conceived to TN, TP, difficult degradation
COD processing, takes into account BOD5、SS、NH3- N removal.Single denitrification filter pool in sewage treatment plant carries mark transformation process not
Above index stable water outlet can be completely secured up to standard, therefore research relevant treatment technique is imperative.
Utility model content
The purpose of this utility model is to provide a kind of combination filter tank for proposing mark transformation for sewage plant, combined using two-stage
Biofilter（Denitrification+aeration）Technique, can filter denitrification filter pool and aeration and biological on the basis of sewage plant existing utility
Pond is organically combined, and realizes denitrification, sand filtration and except carbon function, it is ensured that COD, SS, NH of water outlet3- N, TN reach height
Standard Chinese effluent.
Above-mentioned purpose of the present utility model technical scheme is that：One kind carries mark for sewage plant and changed
The combination filter tank made, including the DN biofilters of setting, combination lift pump room, CN lifes are sequentially communicated by pipeline or connection channel
Thing filter tank and clear water reserviors, DN biofilters are with CN biofilters equipped with shared three-stage air water reverse flushing device, CN biological filters
Aerator is additionally provided with pond.
By using above-mentioned technical proposal, two-stage combination biofilter adds the group technology of aeration using denitrification.Combination
Denitrification filter pool in filter tank uses the denitrification filter pool with BAF form, is a kind of biomembrance process sewage
Handling process, the technique, which has, removes SS, the effect of denitrogenation, is characterized in integrating biological denitrificaion and retention suspended solid,
Denitrifying bacteria is attached on ceramsite concrete light-weight filtrate, is fully contacted with the nitrate of water inlet, and then removes total nitrogen, and its volume is born
Lotus, hydraulic load are big, and hydraulic detention time is short, and effluent quality is good, and operation energy consumption is low, economic operating cost.BAF is
A kind of Novel sewage bio membrane treatment, its series of processes has fabulous denitrogenation and organic matter degradation effect, its maximum
Feature is to use growth in a kind of new biofilter material, its surface opening hole to have microbial film, and sewage is flowed through from bottom to top
When surface covers with the filtrate of biomembrane, organic matter and nitrogen in sewage are degraded, while in filter material layer effectively catching sewage
Biomembrane that SS and aging come off simultaneously carries out separation of solid and liquid, and periodically filter tank is backwashed using the water outlet after processing, promotion
Filter material surface aging biomembrane comes off, and excludes the SS being trapped and aging comes off biomembrane, make the fresh bio film of high activity
Directly contacted with sewage, improve degradation rate and efficiency, make water outlet stably reaching standard.According to plant area's waterpower elevation present situation in anti-nitre
Change and combination lift pump room is set behind filter tank, built jointly with two-stage filter tank, on the one hand save engineering construction investment, on the other hand avoid pond
The too high operation maintenance inconvenience of body.Two-stage filter tank uses three-stage air-water backwashing mode, it can be ensured that backwash effect.
It is preferred that, three-stage back purge system includes independent gas backwash section, combined water and air backwash section and individually water is anti-
Purge zone, the air intensity of independent gas backwash section is 14L/ (s.m2), backwashing time is 3min, combined water and air backwash section
Air intensity be 14L/ (s.m2), water backwashing intensity about 6L/ (s.m2), backwashing time is 4min, and single water backwash washes section
Water backwashing intensity about 6L/ (s.m2), backwashing time is 5min.
By using above-mentioned technical proposal, on the premise of backwash effect is ensured, can with effectively save backwash water,
The producing water ratio of raising system.
It is preferred that, three-stage back purge system includes each at least two backwash blower fan, backwash pump and sky of quantity
Press, in addition to supporting air accumulator, cooling driers and filter.
By using above-mentioned technical proposal, three-stage back purge system both ensure that developing result, and energy consumption can be reduced again.
It is preferred that, aerator includes some Aeration fans.
By using above-mentioned technical proposal, Aeration fan has certain air quantity and pressure, is spread well by conveying equipment
Equipment forces air to be added in water body, and the aeration with certain air quantity makes to increase enough dissolved oxygens in water body, meets
The biological demand to oxygen of oxygen, makes gas fully diffusion and contact in water body, and prevent to hang in liquid with enough pressure
Float is sunk.
It is preferred that, DN biofilters are respectively provided with high 300mm cobble supporting layer with CN biofilters, and diameter is respectively adopted
Formed for Φ 8-16mm and Φ 16-32mm cobblestone laying, provided with ceramic grain filter layer above cobble supporting layer, ceramic grain filter layer
Formed using diameter of phi 3-5mm ceramic grain filter laying.
By using above-mentioned technical proposal, the effect of cobble supporting layer is first filtering, cobblestone filtrate is nontoxic, tasteless,
Nondiscoloration, quality is hard, the natural stone characteristic with resistance to compression, wear resistant corrosion resistant, is the preferred materials of filter tank bed course.Ceramic grain filter
With the features such as surface is hard, internal capillary is more, porosity is high, specific surface area is big, so that biological bacteria adhesive ability is strong, breeding
Hurry up, biofilm efficiency high, ammonia nitrogen excellent effect is removed under the conditions of low-temperature and low turbidity, the work period is long, unit filter run volume is big, bulk specific weight
Gently, intensity is big, so as to backwash, energy consumption is low, and the loss of flood peak is small, and retaining power is strong.
It is preferred that, DN biofilters include the eight mono- ponds of lattice DN, and the eight mono- ponds of lattice DN are arranged symmetrically in both sides, DN biofilters
Irrigation channel is entered by DN in the middle of irrigation channel in the middle of the DN irrigation channels that both sides are communicated with, the DN that centre is communicated with, DN
Water pipe is connected with per the mono- ponds of lattice DN, and the bottom of DN biofilters is also set provided with DN water distribution systems and using upward flow filtration mode
There are the DN water outlet channels with combining lift pump room connection.
By using above-mentioned technical proposal, DN biofilters use upward flow filter, and bottom water inlet, top water outlet has
It is not easily blocked, rinses that easy, filtering cloth head is small, pollutant carrying capacity is strong, the features such as treatment effeciency is high, effluent quality is good, can improve
Filtration flow-rate, increases filtrate pollutant carrying capacity, extends backwashing period.
It is preferred that, CN biofilters include the eight mono- ponds of lattice CN, and the eight mono- ponds of lattice CN are arranged symmetrically in both sides, CN biofilters
Intake in the middle of the CN irrigation channels that both sides are communicated with, CN irrigation channels connection combination lift pump room, the CN that centre is communicated with
Irrigation channel is connected by CN water inlet pipes with per the mono- ponds of lattice CN in the middle of channel, CN, and water system is matched somebody with somebody in the bottom of CN biofilters provided with CN
Unite and use upward flow filtration mode, be additionally provided with the CN water outlet channels connected with clear water reserviors.
By using above-mentioned technical proposal, CN biofilters use upward flow filter, and bottom water inlet, top water outlet has
It is not easily blocked, rinses that easy, filtering cloth head is small, pollutant carrying capacity is strong, the features such as treatment effeciency is high, effluent quality is good, can improve
Filtration flow-rate, increases filtrate pollutant carrying capacity, extends backwashing period.
To sum up, a kind of combination filter tank that mark transformation is proposed for sewage plant described in the utility model, combination denitrification and exposure
Gas technique, is a kind of Sewage Biological Treatment efficient denitrification technology, and the sewage treatment plant's high standard that is particularly suitable for use in goes out the transformation of water extraction mark,
With advantages below：
1. the form connected using Prepositive denitrification filter tank and BAF, is effectively ensured high standard effluent quality.
2. two-stage filter form uses upward flow filter, and with being not easily blocked, to rinse simplicity, filtering cloth head small,
Pollutant carrying capacity is strong, the features such as treatment effeciency is high, effluent quality is good.
3. intermediate lift pump room is set after denitrification filter pool according to plant area's waterpower elevation present situation, built jointly with two-stage filter tank,
On the one hand engineering construction investment is saved, the too high operation maintenance inconvenience of pond body is on the other hand avoided.
4. two-stage filter tank uses three-stage air-water backwashing mode, on the premise of backwash effect is ensured, Ke Yiyou
Effect saves backwash water, improves the producing water ratio of system.
Brief description of the drawings
Fig. 1 is the integrated artistic structure chart of sewage disposal after transformation.
Reference：1st, between grid and inlet pumping station；2nd, aerated grit chamber；3rd, anaerobic pond；4th, anoxic pond and backflow pump house；
5th, anoxic zone and aerobic zone；6th, final deposition pool；7th, intermediate lift pump room；8th, efficient sedimentation tank；9th, active sand filter；10th, contact disappears
Malicious pond；11st, Treated sewage reusing pump house；12nd, sludge dewatering computer room；13rd, mud storage pool；14th, sludge pipeline；15th, sewer line；16th, film
Pond；17th, DN biofilters；18th, lift pump room is combined；19th, CN biofilters；20th, clear water reserviors；21st, draining buffer pool.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, existing sewage plant main process is the active sand filters 9 of AAO+ efficient sedimentation tanks 8+, including pass through
Between the grid that production flow line is sequentially communicated and inlet pumping station 1, aerated grit chamber 2, preliminary sedimentation tank, anaerobic pond 3 and backflow pump house, oxidation
Ditch, final deposition pool 6, intermediate lift pump room 7, efficient sedimentation tank 8, active sand filter 9, disinfecting tank 10, Treated sewage reusing pump house 11,
Also include sludge dewatering computer room 12 and mud storage pool 13.
Now above-mentioned sewage plant is reconstructed, preliminary sedimentation tank is transform as anaerobic pond 3, anaerobic pond 3 transform anoxic pond as, is aoxidized
Ditch transform anoxic zone and aerobic zone 5, and the newly-built membrane cisterna 16 between active sand filter 9 and disinfecting tank 10 as.
Final deposition pool 6, anoxic zone after reconstruction are connected by sludge pipeline 14 with anaerobic pond 3 respectively with aerobic zone, anoxic pond.
Meanwhile, the newly-built combination filter tank that mark transformation is proposed for sewage plant in reconstruction, including pass through pipeline or connection channel
It is sequentially communicated DN biofilters 17, combination lift pump room 18, CN biofilters 19 and the clear water reserviors 20 of setting.
DN biofilters 17 are respectively provided with high 300mm cobble supporting layer with CN biofilters 19, and are respectively adopted a diameter of
Φ 8-16mm and Φ 16-32mm cobblestone laying are formed, and provided with ceramic grain filter layer above cobble supporting layer, ceramic grain filter layer is adopted
Formed with diameter of phi 3-5mm ceramic grain filter laying.
DN biofilters 17 are with CN biofilters 19 equipped with shared three-stage air water reverse flushing device, including 3 recoils
Blower fan is washed, 2 uses 1 are standby, wherein 2 frequency conversions；3 backwash pumps, 2 uses 1 are standby, wherein 2 frequency conversions；2
Platform air compressor machine, 1 use 1 is standby；Also include supporting air accumulator, cooling driers and filter.Three-stage back purge system bag
Include independent gas backwash section, combined water and air backwash section and single water backwash and wash section, the air intensity of independent gas backwash section is
14L/(s.m2), backwashing time is 3min, and the air intensity of combined water and air backwash section is 14L/ (s.m2), water backwashing is strong
Spend about 6L/ (s.m2), backwashing time is 4min, and single water backwash washes the water backwashing intensity about 6L/ (s.m of section2), backwash
Time is 5min.
Aerator, including 9 Aeration fans are additionally provided with CN biofilters 19,8 uses 1 are standby.
DN biofilters 17 include the eight mono- ponds of lattice DN, and the eight mono- ponds of lattice DN are arranged symmetrically in both sides, and the two of DN biofilters 17
Irrigation channel is intake by DN in the middle of irrigation channel in the middle of the DN irrigation channels that side is communicated with, the DN that centre is communicated with, DN
Pipe is connected with per the mono- ponds of lattice DN, and the bottom of DN biofilters 17 is also set provided with DN water distribution systems and using upward flow filtration mode
There are the DN water outlet channels with combining the connection of lift pump room 18.
CN biofilters 19 include the eight mono- ponds of lattice CN, and the eight mono- ponds of lattice CN are arranged symmetrically in both sides, and the two of CN biofilters 19
Intake in the middle of the CN irrigation channels that side is communicated with, CN irrigation channels connection combination lift pump room 18, the CN that centre is communicated with
Irrigation channel is connected by CN water inlet pipes with per the mono- ponds of lattice CN in the middle of channel, CN, and the bottom of CN biofilters 19 is provided with CN water distributions
System simultaneously uses upward flow filtration mode, is additionally provided with the CN water outlet channels connected with clear water reserviors 20.
Combining filter tank also includes newly-built draining buffer pool 21, connects dirty between CN biofilters 19 and draining buffer pool 21
Water pipeline 15, this sewer line 15 is also connected to DN biofilters 17, and the water side of draining buffer pool 21 passes through sewer line
15 are communicated to plant area's sewage inspection well, while connecting sludge dewatering computer room 12 through mud storage pool 13 by sludge pipeline 14.
Nitrification liquid in clear water reserviors 20 is back to denitrification filter pool front end by pipeline；The life of the water side of efficient sedimentation tank 8
Are produced from pipeline connection DN biofilters 17, the clear water reserviors 20 of last combined biofilter simultaneously connect active sand filter 9；Active sand filtration
The production flow line of the water side of pond 9 is divided into two-way, and membrane cisterna 16 is connected all the way, and another road connects disinfecting tank 10；Disinfecting tank
10 production flow line is divided into two-way, and Treated sewage reusing pump house 11, another road discharge are connected all the way.
On the basis of existing sewage treatment process, sewage enters combination biofilter after former efficient sedimentation tank 8, successively
Former active sand filter 9 is returned to behind DN biofilters 17, combination lift pump room 18 and CN biofilters 19, in DN biofilters
Anti-nitration reaction is carried out in 17 to denitrogenate, waste water nitrification is carried out in CN biofilters 19, while carrying out at BOD oxidations, sewage
Reason plant effluent is sterilized to reach reuse or discharge water body after standard.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Claims (7)
1. a kind of combination filter tank that mark transformation is proposed for sewage plant, it is characterised in that：Including by pipeline or connection channel successively
Connect the DN biofilters set（17）, combination lift pump room（18）, CN biofilters（19）And clear water reserviors（20）, DN biological filters
Pond（17）With CN biofilters（19）Equipped with shared three-stage air water reverse flushing device, CN biofilters（19）Inside it is additionally provided with exposure
Device of air.
2. a kind of combination filter tank that mark transformation is proposed for sewage plant according to claim 1, it is characterised in that：Described three sections
Formula back purge system includes independent gas backwash section, combined water and air backwash section and single water backwash and washes section, independent gas backwash
The air intensity of section is 14L/ (s.m2), backwashing time is 3min, and the air intensity of combined water and air backwash section is 14L/
(s.m2), water backwashing intensity about 6L/ (s.m2), backwashing time is 4min, and single water backwash washes the water backwashing intensity of section about
6L/(s.m2), backwashing time is 5min.
3. a kind of combination filter tank that mark transformation is proposed for sewage plant according to claim 2, it is characterised in that：Described three sections
Formula back purge system includes each at least two backwash blower fan, backwash pump and air compressor machine of quantity, in addition to supporting storage
Gas tank, cooling driers and filter.
4. a kind of combination filter tank that mark transformation is proposed for sewage plant according to claim 1, it is characterised in that：The aeration
Device includes some Aeration fans.
5. a kind of combination filter tank that mark transformation is proposed for sewage plant according to claim 1, it is characterised in that：The DN lifes
Thing filter tank（17）With CN biofilters（19）High 300mm cobble supporting layer is respectively provided with, and a diameter of Φ 8-16mm are respectively adopted
Cobblestone laying with Φ 16-32mm is formed, and provided with ceramic grain filter layer above cobble supporting layer, ceramic grain filter layer uses diameter of phi
3-5mm ceramic grain filter laying is formed.
6. a kind of combination filter tank that mark transformation is proposed for sewage plant according to claim 1, it is characterised in that：The DN lifes
Thing filter tank（17）Including the eight mono- ponds of lattice DN, the eight mono- ponds of lattice DN are arranged symmetrically in both sides, DN biofilters（17）Both sides provided with connect
Irrigation channel passes through DN water inlet pipes and every lattice in the middle of irrigation channel in the middle of logical DN irrigation channels, the DN that centre is communicated with, DN
The mono- pond connections of DN, DN biofilters（17）Bottom provided with DN water distribution systems and use upward flow filtration mode, be additionally provided with and group
Close lift pump room（18）The DN water outlet channels of connection.
7. a kind of combination filter tank that mark transformation is proposed for sewage plant according to claim 6, it is characterised in that：The CN lifes
Thing filter tank（19）Including the eight mono- ponds of lattice CN, the eight mono- ponds of lattice CN are arranged symmetrically in both sides, CN biofilters（19）Both sides provided with connect
Logical CN irrigation channels, CN irrigation channels connection combination lift pump room（18）, the CN centres irrigation channel that centre is communicated with, CN
Middle irrigation channel is connected by CN water inlet pipes with per the mono- ponds of lattice CN, CN biofilters（19）Bottom provided with CN water distribution systems simultaneously
Using upward flow filtration mode, it is additionally provided with and clear water reserviors（20）The CN water outlet channels of connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720200210.4U CN206512077U (en) | 2017-03-02 | 2017-03-02 | A kind of combination filter tank that mark transformation is proposed for sewage plant |
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| CN201720200210.4U CN206512077U (en) | 2017-03-02 | 2017-03-02 | A kind of combination filter tank that mark transformation is proposed for sewage plant |
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| CN206512077U true CN206512077U (en) | 2017-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927629A (en) * | 2017-03-02 | 2017-07-07 | 南京市市政设计研究院有限责任公司 | A kind of combination filter tank that mark transformation is proposed for Sewage Plant |
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2017
- 2017-03-02 CN CN201720200210.4U patent/CN206512077U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927629A (en) * | 2017-03-02 | 2017-07-07 | 南京市市政设计研究院有限责任公司 | A kind of combination filter tank that mark transformation is proposed for Sewage Plant |
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