CN109574223A - A kind of MBR water treatment system and its method producing water using siphon - Google Patents
A kind of MBR water treatment system and its method producing water using siphon Download PDFInfo
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- CN109574223A CN109574223A CN201811501269.2A CN201811501269A CN109574223A CN 109574223 A CN109574223 A CN 109574223A CN 201811501269 A CN201811501269 A CN 201811501269A CN 109574223 A CN109574223 A CN 109574223A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a kind of MBR water treatment systems that water is produced using siphon, including biological processing unit and submerged membrane processing unit, the biological processing unit includes anaerobic pond, anoxic pond and aerobic tank, the submerged membrane processing unit includes film case and one group of immersion membrane stack being installed in film case, the water inlet of immersion membrane stack passes through water inlet pipe respectively and connects water inlet manifold, water inlet manifold connects biological processing unit water outlet, it is characterized by: the bottom of the immersion membrane stack is equipped with siphon pipeline, siphon pipe road is respectively mounted siphon valve, siphon piping connection vacuum tube, vacuum valve is installed on vacuum tube, vacuum tube connects vacuum pump, the siphon pipeline of one group of immersion membrane stack is connected to exit branch, each exit branch connects total outlet pipe, installation produces penstock in total outlet pipe.The MBR water treatment system and processing method that water is produced using siphon of the invention, energy consumption needed for can effectively reduce MBR process operation greatly reduce treatment process operating cost.
Description
Technical field
The present invention relates to technical field of sewage, it is especially a kind of using siphon produce water MBR water treatment system and its
Method.
Background technique
China is poor one of the country of global per capita water resource.Demand with the economic development in China, to water resource
It is increasing, the in short supply of water resource is exacerbated, while sewage load also largely increases.Sewage treatment and its resource utilization are
The effective way of water resource anxiety is solved, therefore by improving sewage treating efficiency, it is very necessary for reducing cost of sewage disposal
's.
Biofilm reactor (MBR) technique is a kind of sewage treatment work for combining membrane separation technique with biological treatment
Skill, the technique are imitated using the sedimentation basin in efficient film filtering substitution conventional activated sludge process with high separation of solid and liquid
Fruit can keep higher microorganism total amount in reactor, so that biochemical treatment efficiency is improved, volumetric loading with higher,
And stable effluent quality.There is stronger superiority relative to traditional handicraft.
Although MBR technique is increasing in sewage treatment, its process operation expense is greatly improved compared to traditional handicraft,
Seriously hinder the application and popularization of MBR technique.As can reducing popularization and application of the MBR process operation processing cost to MBR technique
And the upgrading of sewage disposal technology plays an important role.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of MBR water process systems that water is produced using siphon
System and its method, energy consumption needed for MBR process operation is greatly reduced greatly reduce treatment process operating cost.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of MBR water treatment system producing water using siphon, including biological processing unit and submerged membrane processing unit, institute
Stating biological processing unit includes anaerobic pond, anoxic pond and aerobic tank, and the submerged membrane processing unit includes film case and is installed on
One group of immersion membrane stack in film case, the water inlet of immersion membrane stack connects water inlet manifold by water inlet pipe respectively, total to intake
Pipe connects biological processing unit water outlet, it is characterised in that: and the bottom water outlet of the immersion membrane stack is equipped with siphon pipeline,
Siphon pipe road is respectively mounted siphon valve；The top water outlet of immersion membrane stack connects vacuum tube, installs vacuum on vacuum tube
Valve, vacuum tube connect vacuum pump, and the siphon pipeline of immersion membrane stack is connected to exit branch, each total water outlet of exit branch connection
It manages, installation produces penstock in total outlet pipe.
Moreover, the immersion membrane stack uses rimless full runner plate film group device, rimless full runner plate film group device includes
Upper header, lower header, support tube and rimless full runner flat membrane component, upper header, lower header are by symmetrically supporting
Pipe is fixedly mounted, and the rimless full runner flat membrane component of several parallel arrangements is installed between upper header, lower header；The nothing
The full runner flat membrane component of frame includes film bag, porous media filler, upper end seal, lower end seal, and the film bag is by filtering
Diaphragm, which welds or is bonded and sealed at its side docking, to be formed bag-shaped, fills porous media filler inside film bag, film bag upper end with
Upper end seal is fixedly connected, and film bag lower end is fixedly connected with lower end seal, and upper end seal, lower end seal are provided with
Collection chamber, the upper/lower terminal portion of porous media filler are adhesively fixed on the edge of collection chamber inside upper and lower end sealing element respectively,
Form the runner by film bag inner surface through porous media filler to collection chamber；Upper end seal be provided be connected to collection chamber it is upper
Is produced from the mouth of a river, lower end seal is provided with the lower production mouth of a river being connected to collection chamber.
Moreover, the upper end seal of the rimless full runner flat membrane component is provided with, two be connected to collection chamber are upper to be produced
The mouth of a river, the lower end seal are provided under two be connected to collection chamber and produce the mouth of a river.
Moreover, the upper header is ring pipe, several upper header joints, collection on this are formed in upper header lower surface
Flow tube connector is connect one by one with upper each production mouth of a river set by the upper end seal of rimless full runner flat membrane component；The next part
Flow tube is ring pipe, is formed with several lower header connectors in lower header upper surface, the lower header connector and rimless full runner
The lower production mouth of a river set by the lower end seal of flat membrane component connects one by one.
Moreover, one end of the upper header is provided with header nozzle, upper afflux nozzle is upper with immersion membrane stack
The connection of portion's water outlet；One end of the lower header is provided with lower header nozzle, the bottom of lower header nozzle and immersion membrane stack
The connection of portion's water outlet.
Moreover, the filtration membrane of the film bag uses micro-filtration diaphragm or ultrafiltration diaphragm；The porous media filler is using more
Hole sponge, extruded fibers silk accumulation plate or micropore sintered plate porous media filler.
Moreover, the thickness of the mandruka of the porous media filler, micropore sintered plate is in 1-20mm, aperture 15-
35PPI。
Moreover, the bottom of the immersion membrane stack is equipped with aeration bubbling device, which passes through gas piping
Connect blower.
A kind of processing method for the MBR water treatment system producing water using siphon comprising following steps:
1) biological processing unit purified treatment: sewage initially enters biological processing unit, and gravity flow mode is passed through anaerobic pond, lacked
Oxygen pond and aerobic tank, majority of organic pollutants and nitrogen substance are removed in biological unit in sewage, obtain carrying work
The sewage of property sludge；
2) film process purification unit is handled: the sewage for carrying activated sludge enters in the film case of submerged membrane processing unit
Immersion membrane stack, carry out UF membrane purified treatment, obtain UF membrane produce water；
3) siphon produces water: opening vacuum pump, aspirates in vacuum tube, when vacuum pump outlet has water generation, vacuum valve is closed
It closing, vacuum pump is closed, and is opened and is produced penstock, and siphon valve is opened, and by liquid level difference, immersion membrane stack starts siphon and produces water, into
Row periodically produces water；
4) producing water terminates: at the end of producing water, siphon valve is closed, and vacuum valve is opened, and destroys siphon, film surface relaxation, warp
It crosses blower and aeration bubbling device carries out aeration purging, restore film surface cleaning rapidly.
Moreover, sludge concentration maintains 8000~10000mg/L or so in biological processing unit in step 1).
The advantages and benefits of the present invention are:
1, the MBR water treatment system of the invention that water is produced using siphon, is connect and is led to total outlet pipe by siphon pipeline
It crosses siphon valve to be controlled, the membrane stack is made to realize that siphon produces water, traditional MBR film suction operating cost is reduced with this, reduces MBR
The operating cost of technique.
2, the MBR water treatment system of the invention that water is produced using siphon, the bottom of immersion membrane stack are equipped with aeration purging dress
It sets, which connects blower by gas piping, carries out aeration purging by blower, keeps film surface cleaning, reduces
Film surface pollution.
3, the MBR water treatment system of the invention that water is produced using siphon, the bottom in film case is equipped with cushioning fender, in film case
Sludge collecting tank is arranged in bottom, and collecting tank is up-side down triangle, and the outlet of the collecting tank is connect with sludge collecting pipe, sludge collecting pipe
It is connected to total mud discharging pipe, realize sludge recycling and is utilized.
4, the MBR water treatment system of the invention that water is produced using siphon, immersion membrane stack use rimless full runner filter membrane
Group device, using rimless design, the flexible filled layer in inside, membrane separating effect is good；By several rimless full runner flat membranes
Part is vertically arranged installation, and upper header, lower header are fixedly mounted by symmetrical support tube, and stable structure is reliable, realizes maximum
Clean-up effect.
5, the MBR water treatment system of the invention that water is produced using siphon, immersion membrane stack use rimless full runner filter membrane
Group device, above, another end seal is the upper end seal of rimless full runner flat membrane component in lower section, holding membrane component
The upper header nozzle of vertical direction, upper header connects vacuum pump, the lower header nozzle of lower header by vacuum tube
Water producing pipe road is connected, when work, vacuum pump is opened, stops vacuum pump after taking the air in overhead vacuum pipe away, make in membrane component
It is hydraulically full, water producing pipe road is opened, under negative-pressure ward or siphonage, raw water penetrates film bag, enters through flow-guiding cloth porous
The production mouth of a river of lower seal collection chamber warp in medium filler, then from below flows into water producing pipe road；It is certain when accumulating in film bag
When the gas of amount, gas is converged in the collection chamber of end seal, can be again turned on vacuum pump, is stopped after taking upper air away
Vacuum pump；When film bag needs to clean, water producing pipe road is closed, from top, detergent line is pumped into medicament immersion or backwash membrane component,
After open lower section water producing pipe road discharge, complete UF membrane water-purifying process.
6, the MBR water treatment system of the invention that water is produced using siphon, immersion membrane stack use rimless full runner filter membrane
Group device, rimless full runner plate mould group device, which is used, is built-in with porous media filler in the film bag of rimless full runner plate mould element
Mode can greatly reduce internal flow resistance by its porous structure, improve the uniformity that pressure acts on film surface, make to take out
The more stepless actions of the negative pressure of suction on the surface of the film, rather than consume during flowing and generating gas, therefore can be with
Water is produced using the lesser siphon operation of elevation, so that production water consumption be effectively reduced.
7, the MBR water treatment system of the invention that water is produced using siphon, immersion membrane stack use rimless full runner filter membrane
Group device, the film bag of the rimless full runner plate mould element of rimless full runner plate mould group device are built-in with porous media filler, can
To support film surface under a certain pressure, loosen or tighten the film surface of film bag when pressure increases or reduces, the film of film bag can be made
Mask is flexible, makes partial sludge that sludge be desorbed from the film surface of film bag, relative to traditional plate and frame flat membrane component, has one
Fixed self-cleaning function.
8, the MBR water treatment system of the invention that water is produced using siphon, there is not formula membrane stack using rimless full runner filtration module
The film bag of device, the rimless full runner plate mould element of rimless full runner plate mould group device is built-in with porous media filler, can be with
It is slightly swung using water impact, makes partial sludge that sludge be desorbed from film surface, relative to traditional plate and frame flat membrane component,
With certain self-cleaning function.
9, the MBR water treatment system of the invention that water is produced using siphon, there is not formula membrane stack using rimless full runner filtration module
The upper and lower end sealing element of device, the rimless full runner plate mould element of rimless full runner plate mould group device is provided with collection chamber,
One end is connect with porous media filler, and one end is connect with the upper production mouth of a river or the lower production mouth of a river；Collection chamber is triangular in shape or trapezoidal, gathers around
There is constant slope, when being placed in top, converges discharge convenient for gas and be stored in membrane cavity without becoming silted up, when placed below wherein convenient for water
Collect downwards, there is water distribution and press, drag losses can be reduced.
10, the MBR water treatment system of the invention that water is produced using siphon, there is not formula membrane stack using rimless full runner filtration module
Device, the rimless full runner plate mould element of rimless full runner plate mould group device, film bag and the upper end for producing water flow-guiding cloth are equal
It welds or is adhesively fixed with upper end seal and connect, film bag and the lower end for producing water flow-guiding cloth are welded or bonded with lower end seal
It is fixedly connected, encapsulating mode can be used and achieve a fixed connection, centre can bear the backwash of lower pressure without Hard link mechanism
Operation；Porous media filler and upper and lower end are sealed that sealing is cheap, are the 1/4 of conventional plastic whole plate flat membrane component frame
To 1/10.
11, the MBR water treatment system of the invention that water is produced using siphon, film case hangs on aerobic tank outer wall, to save film
Pond occupied area makes full use of biochemistry pool space structure, old water factory mention mark transformation in, can not influence raw water plant operation with
And in the case that structure (building) builds object influence, construction is completed, complete the technology upgrading to water factory.
12, the MBR water treatment system and processing method of the invention that water is produced using siphon can effectively reduce MBR technique fortune
Energy consumption needed for row greatly reduces treatment process operating cost.
Detailed description of the invention
Fig. 1 is the flow chart of the MBR water treatment system of the invention that water is produced using siphon；
Fig. 2 is the flow chart of membrane stack of the invention；
Fig. 3 is the structural schematic diagram (multiple rows of) of rimless full runner filtration module device of the invention；
Fig. 4 is the schematic diagram of rimless full runner filtration module device of the invention；
Fig. 5 is the structural schematic diagram of rimless full runner plate mould element of the invention；
Fig. 6 is the structural schematic diagram (cross-section) of rimless full runner plate mould element of the invention；
Fig. 7 is the structural schematic diagram of the cross section of rimless full runner plate mould element of the invention.
Detailed description of the invention
1- anaerobic pond, 2- agitating device, 3- anoxic pond, 4- aerobic tank, 5- aerator, 6- vacuum valve, 7- vacuum pump,
8- immersion membrane stack, 9- produce penstock, 10- blower, 11- sludge and return dredge pump, 12- film case, 13- aeration bubbling device, 14- siphon
Pipeline, 15- siphon valve, 16- vacuum tube, the total vacuum tube of 17-, 18- sludge collecting tank, the total mud discharging pipe of 19-, 20- sludge
Collecting pipe, 21- water inlet pipe, 22- cushioning fender, 23- water inlet manifold, 24- film bag, 25- produce water flow-guiding cloth, 26- porous media
The mouth of a river, 29- collection chamber are produced on the upper end seal of filler, 27-, 28-, are produced the mouth of a river under 30- under end seal, 31-, are connected on 32-
Pipe, 33- lower connector, the upper header of 34-, the upper header nozzle of 35-, the upper header joint of 36-, 37- support tube, 38- next part
The rimless full runner flat membrane component of flow tube nozzle, 39- lower header, 40- lower header connector, 41- support tube, 42-.
Specific embodiment
Below by specific embodiment, the invention will be further described, and it is not limit that following embodiment, which is descriptive,
Qualitatively, this does not limit the scope of protection of the present invention.
A kind of MBR water treatment system producing water using siphon, as shown in Figure 1, 2, including biological processing unit and immersion
Film process unit, biological processing unit include anaerobic pond 1, anoxic pond 3 and aerobic tank 4, settable in anaerobic pond 1 and anoxic pond 3
Agitating device 2.Submerged membrane processing unit includes film case 12 and one group of immersion membrane stack 8 being installed in film case 12, immersion
Membrane stack 8 uses rimless full runner filtration module device.The water inlet of rimless full runner filtration module device passes through water inlet pipe 21 respectively
Water inlet manifold 23 is connected, water inlet manifold 23 connects biological processing unit water outlet.
This produces the innovation of the MBR water treatment system of water using siphon are as follows:
The bottom of immersion membrane stack 8 is equipped with siphon pipeline 14, is respectively mounted siphon valve 15 on the siphon pipeline 14；Submergence
The top of formula membrane stack 8 is provided with vacuum tube 16, installs vacuum valve 6, the vacuum tube 16 of one group of immersion membrane stack 8 on vacuum tube 16
It is connected to total vacuum tube 17, total vacuum tube 17 connects vacuum pump 7, and the siphon pipeline 14 of one group of immersion membrane stack 8 is connected to water outlet
Branch pipe, each exit branch connect total outlet pipe, and installation produces penstock 9 in total outlet pipe.Film case 12 hangs on 4 outer wall of aerobic tank.
The bottom of immersion membrane stack 8 is equipped with aeration bubbling device 13, which is connected by gas piping
Blower 10.4 bottom of aerobic tank is provided with aerator 5, and the aerator 5 is also by piping connection blower 10.
Bottom in film case 12 is equipped with cushioning fender 22, sludge collecting tank 18 is arranged in 12 bottom of film case, collecting tank is to fall
The outlet of triangle, the collecting tank is connect with sludge collecting pipe 20, and sludge collecting pipe 20 is connected to total mud discharging pipe 19, total dirty
Mud delivery pipe 19 connects sludge and returns dredge pump 11, and sludge returns dredge pump 11 and sludge pump is back to biological processing unit.
The immersion membrane stack of this MBR water treatment system for producing water using siphon uses rimless full runner plate film group device.Such as
Shown in Fig. 3, Fig. 4, rimless full runner plate film group device includes upper header 34, lower header 39, support tube 41 and rimless full stream
Road flat membrane component 42, upper header 34, lower header 39 are fixedly mounted by symmetrical support tube 41, in upper header, next part
The rimless full runner flat membrane component 42 of several parallel arrangements is installed between flow tube.According to use demand, it is parallel that several groups are installed
The rimless full runner flat membrane component of arrangement, makes full use of place, while realizing high-efficient purification.
Rimless full runner flat membrane component 42, as shown in Fig. 5,6,7, including film bag 24, production water flow-guiding cloth 25, porous media
Filler 26, upper end seal 27, lower end seal 30.Film bag 24 is welded or is bonded and sealed in its side docking by filtration membrane
Formed it is bag-shaped, two surfaces inside film bag 24 be lined with produce water flow-guiding cloth 25, produce water flow-guiding cloth 25 between fill porous Jie
Matter filler 26.Film bag 24 is fixedly connected with upper end seal 27 with the upper end for producing water flow-guiding cloth 25, film bag 24 and production water water conservancy diversion
The lower end of cloth 25 is fixedly connected with lower end seal 30, film bag 24 and produce water flow-guiding cloth 25 upper end with upper end seal 27
Connection is welded or is adhesively fixed, film bag 24 and the lower end for producing water flow-guiding cloth 25 are welded with lower end seal 30 or the company of being adhesively fixed
It connects.
Upper end seal 27, lower end seal 30 are provided with collection chamber 29, and upper end seal 27 is provided with and collection chamber
Two of 29 connections are upper to produce the mouth of a river 28.Lower end seal 30 is provided with the production mouth of a river 31 under two be connected to collection chamber 29.Collect
Chamber 29 is triangular in shape or trapezoidal, possesses constant slope, when being placed in top, converges discharge convenient for gas and is stored in membrane cavity without becoming silted up
It is interior, collect downwards wherein when placed below convenient for water, plays the role of water distribution and press, drag losses can be reduced.
The upper/lower terminal portion of porous media filler 26 is adhesively fixed on 30 inside collection chamber 29 of upper and lower end sealing element respectively
Edge, formed from 24 inner surface of film bag through produce water flow-guiding cloth 25 again through porous media filler 26 to the runner of collection chamber 29；On
End seal 27, lower end seal 30 are provided with the lower production mouth of a river 31 being connected to collection chamber 29.
Upper header 34 is ring pipe, is formed with several upper header joints 36, header on this in upper header lower surface
Each upper production mouth of a river 28 set by the upper end seal 27 of connector and rimless full runner flat membrane component 42 passes through upper connector 32
It connects one by one.Lower header 39 is ring pipe, is formed with several lower headers of lower header connector 40 in 39 upper surface of lower header
The lower production mouth of a river 31 set by the lower end seal 30 of pipe fitting 40 and rimless full runner flat membrane component 42 passes through lower connector
33 connect one by one.
One end of upper header 34 is provided with header nozzle 35, and one end of lower header 39 is provided with lower header pipe
Mouth 38.The upper header nozzle 35 connection vacuum tube of upper header 34 and detergent line, vacuum tube connect vacuum pump, lower header
39 lower header nozzle 38 connects water producing pipe road or siphon pipeline, and water producing pipe road connects vacuum pump.
The filtration membrane of film bag 24 uses micro-filtration diaphragm or ultrafiltration diaphragm.It produces water flow-guiding cloth 25 and uses the close grid of plastics.It is more
Hole medium filler 26 is high using mandruka, extruded fibers silk accumulation plate (french drain, blind plate etc.), micropore sintered plate isoperm
Porous media.The thickness of two class porous media filler 3 of mandruka and micropore sintered plate is in 1-20mm, aperture 15-35PPI.
Rimless full runner plate mould group device working principle are as follows:
Several rimless full runner flat membrane components are vertically arranged installation, upper header, lower header are by symmetrically propping up
Stay tube is fixedly mounted, and stable structure is reliable, realizes maximum clean-up effect.Rimless full runner plate mould group device is placed in raw water, is protected
Holding membrane component is vertical direction, wherein upper end seal 27 is above, another end seal is in lower section, the upper collection of upper header 34
Flow tube nozzle 35 connects vacuum tube and detergent line, and vacuum tube connects vacuum pump, and the lower header nozzle 38 of lower header 39 connects
Water lines of practicing midwifery or siphon pipeline, water producing pipe road connect vacuum pump.
When work, vacuum pump is opened, stops vacuum pump after taking the air in overhead vacuum pipe away, made in membrane component full of liquid
Body opens water producing pipe road, and under negative-pressure ward or siphonage, raw water penetrates film bag 24, enters porous media through flow-guiding cloth
The production mouth of a river that lower seal collection chamber 29 in filler 26, then from below passes through flows into water producing pipe road.
When accumulating a certain amount of gas in film bag 24, gas is converged in the collection chamber 29 of end seal 27, can be again
Secondary unlatching vacuum pump, stops vacuum pump after taking upper air away；When film bag 24 needs to clean, water producing pipe road is closed, from top
Detergent line be pumped into medicament impregnate or backwash membrane component, after open lower section water producing pipe road discharge, complete UF membrane water purification work
Skill.
A kind of processing method of the MBR water treatment system of claim 1 utilization siphon production water comprising following steps:
1) biological processing unit purified treatment: sewage initially enters biological processing unit, gravity flow mode by anaerobic pond 1,
Anoxic pond 3 and aerobic tank 4, majority of organic pollutants and nitrogen substance are removed in biological unit in sewage, are carried
The sewage of active sludge；Sludge concentration maintains 8000~10000mg/L or so in biological processing unit.
2) film process purification unit is handled: the processing of film process purification unit: the sewage for carrying activated sludge enters submergence
Immersion membrane stack 8 in the film case 12 of formula film process unit carries out UF membrane purified treatment, obtains UF membrane and produces water.
3) siphon produces water: vacuum pump 7 is opened, is aspirated in vacuum tube 16, when there is water generation in the outlet of vacuum pump 7, and vacuum valve
Door 6 is closed, and vacuum pump 7 is closed, and is opened and is produced penstock 9, and siphon valve 15 is opened, and by liquid level difference, immersion membrane stack 8 starts rainbow
It inhales and produces water, carry out periodically producing water.
4) producing water terminates: at the end of producing water, siphon valve 15 is closed, and vacuum valve 6 is opened, destruction siphon, film surface relaxation,
Aeration purging is carried out by blower 10 and aeration bubbling device 13, restores film surface cleaning rapidly.
Liquid level difference be membrane cisterna (pond body where film group device) liquid level and effluent pipe mouth difference in height (if it is enter another
Pond body --- producing pond is then the liquid level difference that pond is produced with this).According to the different types of immersed microfiltration of use or surpass
Film group device is filtered, usually realizes the liquid level difference for producing water at 1 meter to 10 meters.Immersed flat panel membrane group device representative value is at 2 meters to 4 meters, leaching
Do not have formula doughnut film group device representative value at 3 meters to 6 meters, according to different filtering waters, different membrane component form, fenestra precision,
The practical optimal running values such as structure and material are also different.
Realizing that siphon produces water or says is gravity miscarriage water, it is desirable that has difference in height, liquid level difference, to 10 mitrons, to the greatest extent may be used at 1 meter
Air can be drained, has discontinuous air column to make insufficient pressure that flux (water yield) be caused to decline to avoid the inside.
Though the present invention discloses embodiment and attached drawing, it will be appreciated by those skilled in the art that: do not departing from this hair
In bright and spirit and scope of the appended claims, various substitutions, changes and modifications be all it is possible, therefore, model of the invention
It encloses and is not limited to the embodiment and attached drawing disclosure of that.
Claims (10)
1. a kind of MBR water treatment system for producing water using siphon, including biological processing unit and submerged membrane processing unit, described
Biological processing unit includes anaerobic pond, anoxic pond and aerobic tank, and the submerged membrane processing unit includes film case and is installed on film
One group of immersion membrane stack in case, the water inlet of immersion membrane stack connect water inlet manifold, water inlet manifold by water inlet pipe respectively
Connect biological processing unit water outlet, it is characterised in that: the bottom water outlet of the immersion membrane stack is equipped with siphon pipeline, should
Siphon pipe road is respectively mounted siphon valve；The top water outlet of immersion membrane stack connects vacuum tube, installs vacuum valve on vacuum tube
Door, vacuum tube connect vacuum pump, and the siphon pipeline of immersion membrane stack is connected to exit branch, each total water outlet of exit branch connection
It manages, installation produces penstock in total outlet pipe.
2. the MBR water treatment system according to claim 1 for producing water using siphon, it is characterised in that: the submerged membrane
Heap use rimless full runner plate film group device, rimless full runner plate film group device include upper header, lower header, support tube and
Rimless full runner flat membrane component, upper header, lower header are fixedly mounted by symmetrical support tube, in upper header, next part
The rimless full runner flat membrane component of several parallel arrangements is installed between flow tube；The rimless full runner flat membrane component includes film
Bag, porous media filler, upper end seal, lower end seal, the film bag by filtration membrane its side docking weld or
Being bonded and sealed, it is bag-shaped to be formed, and porous media filler is filled inside film bag, film bag upper end is fixedly connected with upper end seal, under film bag
End is fixedly connected with lower end seal, and upper end seal, lower end seal are provided with collection chamber, porous media filler it is upper,
Lower both ends are adhesively fixed on the edge of collection chamber inside upper and lower end sealing element respectively, are formed by film bag inner surface through porous Jie
Matter filler to collection chamber runner；Upper end seal is provided with the upper production mouth of a river being connected to collection chamber, and lower end seal is provided with
The lower production mouth of a river being connected to collection chamber.
3. the MBR water treatment system of water is produced using siphon according to claim 2, it is characterised in that: the rimless full runner
The upper end seal of flat membrane component be provided be connected to collection chamber two it is upper produce the mouth of a river, the lower end seal be provided with
Is produced from the mouth of a river under two of collection chamber connection.
4. the MBR water treatment system of water is produced using siphon according to claim 2, it is characterised in that: the upper header is
Ring pipe is formed with several upper header joints in upper header lower surface, header joint and rimless full runner plate membrane on this
Upper each production mouth of a river set by the upper end seal of element connects one by one；The lower header is ring pipe, in lower header
Surface is formed with several lower header connectors, set by the lower end seal of the lower header connector and rimless full runner flat membrane component
The lower production mouth of a river set connects one by one.
5. the MBR water treatment system of water is produced using siphon according to claim 2, it is characterised in that: the upper header
One end is provided with header nozzle, and upper afflux nozzle is connect with the top water outlet of immersion membrane stack；The lower header
One end is provided with lower header nozzle, and lower header nozzle is connect with the bottom water outlet of immersion membrane stack.
6. the MBR water treatment system of water is produced using siphon according to claim 2, it is characterised in that: the filtering of the film bag
Diaphragm uses micro-filtration diaphragm or ultrafiltration diaphragm；The porous media filler accumulates plate or micro- using mandruka, extruded fibers silk
Hole sintered plate porous media filler.
7. the MBR water treatment system of water is produced using siphon according to claim 2, it is characterised in that the porous media filler
Mandruka, micropore sintered plate thickness in 1-20mm, aperture 15-35PPI.
8. the MBR water treatment system according to claim 1 for producing water using siphon, it is characterised in that: the submerged membrane
The bottom of heap is equipped with aeration bubbling device, which connects blower by gas piping.
9. a kind of any one of claim 1-8 produces the processing method of the MBR water treatment system of water using siphon, feature exists
In: include the following steps:
1) biological processing unit purified treatment: sewage initially enters biological processing unit, and gravity flow mode passes through anaerobic pond, anoxic pond
And aerobic tank, majority of organic pollutants and nitrogen substance are removed in biological unit in sewage, obtain carrying active dirt
The sewage of mud；
2) film process purification unit is handled: the sewage for carrying activated sludge enters leaching in the film case of submerged membrane processing unit
Do not have formula membrane stack, carry out UF membrane purified treatment, obtains UF membrane and produce water；
3) siphon produces water: opening vacuum pump, aspirates in vacuum tube, when vacuum pump outlet has water generation, vacuum valve is closed, very
Sky pump is closed, and is opened and is produced penstock, and siphon valve is opened, and by liquid level difference, immersion membrane stack starts siphon and produces water, carries out the period
Property produce water；
4) producing water terminates: at the end of producing water, siphon valve is closed, and vacuum valve is opened, and destroys siphon, film surface relaxation, by wind
Machine and aeration bubbling device carry out aeration purging, restore film surface cleaning rapidly.
10. claim 1 produces the processing method of the MBR water treatment system of water, feature using siphon according to claim 1
Be: sludge concentration maintains 8000~10000mg/L or so in biological processing unit in step 1).
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