CN109133333A - A kind of membrane cisterna rolls the energy-saving MBR technique of aeration - Google Patents
A kind of membrane cisterna rolls the energy-saving MBR technique of aeration Download PDFInfo
- Publication number
- CN109133333A CN109133333A CN201810900594.XA CN201810900594A CN109133333A CN 109133333 A CN109133333 A CN 109133333A CN 201810900594 A CN201810900594 A CN 201810900594A CN 109133333 A CN109133333 A CN 109133333A
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- China
- Prior art keywords
- membrane cisterna
- membrane
- aeration
- energy
- rolls
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Classifications
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses the energy-saving MBR techniques that a kind of membrane cisterna rolls aeration, the described technique includes sewage after the processing of front end biochemistry pool, it enters in several membrane cisternas, utilize the efficient retention of MBR film, cooperation is acted synergistically with the activated sludge biochemical of high concentration, further biochemical treatment is carried out to sewage, wherein, several described membrane cisternas are discontinuously to open or close state in sewage disposal process, and it can be according to the variation of practical inflow, the quantity of the membrane cisterna (i.e. membrane module) of intelligently dynamic adjustment operation；This technique significantly reduce sewage disposal process in energy consumption, while also avoid membrane cisterna for a long time it is out of service, in the membrane cisterna that may cause sludge siltation and membrane module blocking.
Description
Technical field
The present invention relates to sewage treatment fields, and in particular to a kind of membrane cisterna rolls the energy-saving MBR technique of aeration.
Technical background
MBR (Membrane Bio-Reactor, membrane bioreactor) technology is a kind of novel water treatment technology.It will
Traditional activated sludge process is combined with membrane separation technique, by the secondary settling tank in the action substitution traditional handicraft of the latter, is realized
Mud-water separation, while also instead of the advanced treatment process after secondary settling tank.
Compared with conventional process mode, MBR technique is with effluent quality is excellent, occupied area is small, capacity of resisting impact load
By force, the advantages such as excess sludge production is few, volumetric loading is high.Usually city have stable political situation industrial wastewater pollution processing in, using membrane cisterna
To place MBR membrane module.
But the problem that MBR technique is relatively high there is also operation energy consumption.In actual motion, no matter how inflow becomes
Change, conventional MBR technique can generally keep the operation of entire membrane cisterna, and with high-intensitive aeration continuous erosion film surface, because such as
Fruit has membrane cisterna out of service and is aerated, then sludgd deposition dirty can block up film, influences the normal use of membrane module in the future.
Wherein, the aeration energy consumption needed for film is cleaned accounts for about 80% or so of MBR system total energy consumption.Instantly, MBR technique is reduced
The main method of aeration energy consumption has: optimizing the design (such as adjustment diaphragm spacing) of membrane module a) to improve the utilization rate of aeration；
B) change the form (such as intermittent aerating) of aeration to save energy consumption；C) more efficient air blast and aerator are selected.
However, there are still following problems for the above method:
(1) energy consumption that optimization membrane module designs can reduce is limited, while the anti-pollution that may reduce film group blocks up performance；It is excellent
The energy consumption that change aerator can reduce is limited, while the cost put into can also dramatically increase；
(2) the frequent opening and closing of air blower or control valve is needed using intermittent aerating, this for equipment stable operation and
Service life has undesirable influence.
Summary of the invention
In view of the above technical problems, the energy-saving MBR technique that a kind of membrane cisterna rolls aeration is inventor provided, more than solution
Technical problem, the technique include sewage after the processing of front end biochemistry pool, enter in several membrane cisternas, utilize MBR film
Efficiently retention, cooperation are acted synergistically with the activated sludge biochemical of high concentration, carry out further biochemical treatment to sewage, wherein
Several described membrane cisternas are discontinuously to open or close state in sewage disposal process, and can be according to the change of practical inflow
Change, the quantity of the membrane cisterna (i.e. membrane module) of intelligently dynamic adjustment operation.
Wherein, sewage is output and input in the membrane cisterna, can pass through membrane cisterna water-in and water-out gate or connecting pipe valve control
System.
Whole sewage treatment capacities of several above-mentioned membrane cisternas can satisfy daily sewage treatment top period demand.
To guarantee the reliability of sewage disposal system and the requirement of energy-saving run, the preferred 2-30 of several membrane cisternas is a.
In the energy-saving MBR technique that above-mentioned membrane cisterna rolls aeration, it is preferable that include several film groups in the membrane cisterna
Part.
In the energy-saving MBR technique that above-mentioned membrane cisterna rolls aeration, it is preferable that the membrane cisterna is individually construction, or with
Biochemistry pool is built jointly and (membrane module is put into aerobic biochemical pool).
In the energy-saving MBR technique that above-mentioned membrane cisterna rolls aeration, it is preferable that the biochemistry pool is more than one life
Change pond, the opening and closing of each biochemistry pool are related to wastewater influent amount.
In the energy-saving MBR technique that above-mentioned membrane cisterna rolls aeration, it is preferable that the operation quantity of several membrane cisternas
It is made adjustment according to the variation of influent stream sewage quantity.
In actual sewage treatment process, daily and each period in one day, the flow of inlet water of sewage are all not
In steady state value, such as 1 year, general summer water is greater than winter；In one day, general night to early morning is smaller, and daytime is then
It is larger.
If sewage quantity is reduced, is run simultaneously without all membrane cisternas, but can correspondingly close 1,2 or several films
Pond, stopping are aerated and aspirate to it.Under the premise of guaranteeing normal water outlet, operation energy consumption is greatly reduced.
Wherein, the shut-in time of each membrane cisterna is not more than 12 hours, and membrane cisterna cannot be in shape out of service for a long time
State, to avoid a large amount of depositions of sludge in membrane cisterna.
In the energy-saving MBR technique that above-mentioned membrane cisterna rolls aeration, it is preferable that each membrane cisterna terminates in closed-down period, weight
Before new starting membrane module operation, control membrane module aerating system is persistently aerated 20-50 minutes.
Wherein, every 0.5-12 hours, adjustment (i.e. rolling-operation) need to be switched over to operation and the membrane cisterna closed, to protect
The maximum time that single membrane cisterna is closed is demonstrate,proved to be no more than 12 hours.
Preferably, the interval time of the rolling-operation carries out program setting, length and different process in a software form
The association situation of parameter is shown in Table 1:
1 rolling time interval of table and different technical parameters contingency table
Preferably, each membrane cisterna needs to install autocontrol valve (motor-driven valve or pneumatic operated valve), is cleaned with opening and closing the film of membrane cisterna
Aerating pipelines, to regulate and control the overall air quantity demand of film scouring.
While membrane cisterna is closed, the air output of air blower (film, which is cleaned, to be used) must be also adjusted.This needs frequency conversion control
The driving motor of air blower processed.
Consider for operational safety angle, regulation needed for this technique need to be realized by automated system, forbid grasping manually
Make；And all membrane cisternas need to be numbered, it is ensured that can accurately identify and position.
The utility model has the advantages that due to the adoption of the above technical scheme, the present invention obtains following technical effect,
(1) under the premise of slightly increasing input cost, operation energy consumption is greatly lowered, while not influencing the anti-pollution of film group
Stifled performance；
(2) sludgd deposition is prevented, the stable operation of membranous system is maintained, ensure that the service life of film.
Detailed description of the invention
Fig. 1 is the embodiment schematic diagram for the energy-saving MBR technique that a kind of membrane cisterna of the invention rolls aeration.
Fig. 2 is that the membrane cisterna part operation of the embodiment for the energy-saving MBR technique that a kind of membrane cisterna of the invention rolls aeration is set
Standby and pipeline schematic diagram.
--- --- --- biochemistry pool 4 --- membrane cisterna 5 --- membrane cisterna of biochemistry pool 3 of pretreatment system 2 in figure: 1
6 --- --- --- mixed liquor reflux 9 --- mixed liquor reflux 10-13 --- membrane cisterna inlet gate 14- of membrane cisterna 8 of membrane cisterna 7
17 --- membrane cisterna water outlet --- air blower 19 --- autocontrol valve 20-21 --- MBR membrane modules of gate 18
Specific embodiment
Embodiment 1
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating that the present invention is further explained.
Embodiment 1: certain municipal sewage plant, day output 5000m3/ d, peak processing capacity 300m3/ h, the factory one day
Interior sewage quantity is shown in Table 2 with the situation of change at moment.
Table 2 changes into factory's sewage quantity moment and corresponding operation combination table
Referring to Fig.1, in the present embodiment, the technical process of sewage plant carries out in accordance with the following steps:
Step a: sewage is pre-processed by the physical chemistry of pretreatment system 1, is input in biochemistry pool 2 and biochemistry pool 3.
Step b: sewage carries out nitrogen, phosphorus and organic cod by the biochemical action of active sludge microorganism in biochemistry pool
Or the removal of BOD.
Step c: the water outlet of biochemistry pool 2 and biochemistry pool 3 is input in membrane cisterna 4, membrane cisterna 5, membrane cisterna 6 and membrane cisterna 7.
Sewage outputs and inputs respectively through membrane cisterna inlet gate in the membrane cisterna 4, membrane cisterna 5, membrane cisterna 6 and membrane cisterna 7
(10-13) and membrane cisterna are discharged gate (14-17) control.
Step d: in membrane cisterna, the solid-liquid separation function of MBR film and biochemical processing are combined, sewage was carried out
Filter realizes mud-water separation, and retains sludge microbe, dramatically increases the activated sludge concentration in pond, while passing through diaphragm
Filtration ensure that preferable effluent quality.
Active sludge microorganism concentration in the biochemistry pool 2 and biochemistry pool 3, by from the membrane cisterna 4, membrane cisterna 5, membrane cisterna
6 and the mixed liquor reflux 8 and mixed liquor reflux of membrane cisterna 79 supplemented, adjusted and stablized.
Step e: by membrane cisterna treated cross drainage be input to clear water reserviors, the cleaning that both can be used for MBR membrane module is standby
With can also directly dispatch from the factory outlet or reuse.
Referring to table 2, in the present embodiment, in sewage plant one day, the flow of inlet water of sewage is simultaneously non-constant, but as the moment exists
Variation.From 0 up to 10 when, water is gradually increased to maximum hydraulic loading 300m3/ h is then gradually decrease to minimum again
100m3/ h, and so on.
The factory is to design membrane cisterna according to peak flow situation and individually build.But in one day actual moving process, water inlet
It is low that flow has height to have, because all maintaining all membrane cisternas without whole day while running.If flow of inlet water is smaller, can correspondingly close
Several membrane cisternas are closed, stopping is aerated and aspirates to it.Under the premise of guaranteeing normal water outlet, operation energy consumption is greatly reduced.
In the present embodiment, in sewage plant different periods, according to the variation of flow of inlet water, the membrane cisterna combined running situation of selection
Referring to table 2.
Wherein, membrane cisterna cannot be in state out of service for a long time, sink to avoid a large amount of of activated sludge in membrane cisterna
Product.In the present embodiment, every 3 hours, just operation and the membrane cisterna closed are adjusted.The membrane cisterna of closing is run in restarting
Before, it is persistently aerated 30 minutes.
See Fig. 2, in the present embodiment, each membrane cisterna has installed autocontrol valve 19；While membrane cisterna is closed, air blower
The air output of 18 (films clean with) is adjusted also by frequency control driving motor.
In the case where original every sewage disposal device function and constant Wastewater Treatment Parameters (such as the processing of biochemistry pool
Time, the classification of membrane module and processing time in membrane cisterna), above-mentioned automated sewage treatment process can reduce original energy consumption
20% or more.
Regulation process in the present embodiment is realized by automated system.
The present invention is not limited to the above embodiment, and in other embodiments, membrane cisterna quantity can be more；Or membrane cisterna is not independent
Construction, but build jointly with biochemistry pool and membrane module is put into aerobic biochemical pool.
The equipment of above-mentioned biochemistry pool facility and membrane cisterna is the prior art, therefore is not required to it is however emphasized that specific specification and user
Method.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (10)
1. the energy-saving MBR technique that a kind of membrane cisterna rolls aeration, which is characterized in that the technique includes sewage by front end biochemistry
It after the processing of pond, enters in several membrane cisternas, using the efficient retention of MBR film, cooperation is assisted with the activated sludge biochemical of high concentration
Same-action carries out further biochemical treatment to sewage, wherein several described membrane cisternas are discontinuously to open in sewage disposal process
It opens or closed state, and can be according to the variation of actual sewage inflow, the quantity of the membrane cisterna of intelligently dynamic adjustment operation.
2. the energy-saving MBR technique that membrane cisterna according to claim 1 rolls aeration, which is characterized in that wrapped in the membrane cisterna
Containing several membrane modules.
3. the energy-saving MBR technique that membrane cisterna according to claim 1 rolls aeration, which is characterized in that the membrane cisterna is single
Solely construction, or built jointly with biochemistry pool.
4. the energy-saving MBR technique that membrane cisterna according to claim 1 rolls aeration, which is characterized in that the biochemistry pool is
The opening and closing of more than one biochemistry pool, each biochemistry pool are related to wastewater influent amount.
5. the energy-saving MBR technique that membrane cisterna according to claim 1 rolls aeration, which is characterized in that several described films
The operation quantity in pond is made adjustment according to the variation of influent stream sewage quantity.
6. the energy-saving MBR technique that membrane cisterna according to claim 1 rolls aeration, which is characterized in that the pass of each membrane cisterna
The time is closed no more than 12 hours.
7. membrane cisterna according to claim 6 rolls in the energy-saving MBR technique of aeration, which is characterized in that each membrane cisterna exists
Closed-down period terminates, and before restarting membrane module operation, control membrane module aerating system is persistently aerated 20-50 minutes.
8. the energy-saving MBR technique that membrane cisterna according to claim 6 rolls aeration, which is characterized in that small every 0.5-12
When, adjustment need to be switched over to operation and the membrane cisterna closed.
9. the energy-saving MBR technique that membrane cisterna according to claim 1 rolls aeration, which is characterized in that each membrane cisterna installation
Autocontrol valve cleans aerating pipelines, the overall air quantity demand that regulation film is cleaned to open and close the film of membrane cisterna.
10. membrane cisterna described in -9 any claims rolls the energy-saving MBR technique of aeration according to claim 1, feature exists
In control of the technique by automation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810900594.XA CN109133333A (en) | 2018-08-09 | 2018-08-09 | A kind of membrane cisterna rolls the energy-saving MBR technique of aeration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810900594.XA CN109133333A (en) | 2018-08-09 | 2018-08-09 | A kind of membrane cisterna rolls the energy-saving MBR technique of aeration |
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| CN109133333A true CN109133333A (en) | 2019-01-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573974A (en) * | 2020-05-15 | 2020-08-25 | 浙江开创环保科技股份有限公司 | Self-adaptive distributed sewage treatment device and treatment process |
| CN112456731A (en) * | 2020-11-13 | 2021-03-09 | 苏州弘毅环境科技有限公司 | Sewage treatment control method and system based on MBR process |
| CN113786718A (en) * | 2021-09-28 | 2021-12-14 | 吉林海普科技发展有限公司 | Water paint spraying VOC biodegradation purification system |
| CN114804548A (en) * | 2022-06-06 | 2022-07-29 | 河南省鹏达羽绒制品有限公司 | Sewage treatment process capable of stably running under conditions of large water amount and small water amount severe fluctuation |
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| CN101376554A (en) * | 2008-10-08 | 2009-03-04 | 闫长军 | Dynamic control method and apparatus for sewage disposal |
| CN201932952U (en) * | 2011-02-15 | 2011-08-17 | 天津天一爱拓科技有限公司 | Membrane bio-reactor (MBR) device capable of intermittently eroding aerated gas |
| CN204588944U (en) * | 2015-04-10 | 2015-08-26 | 北京万邦达环保技术股份有限公司 | A kind of waste disposal plant |
| CN206285724U (en) * | 2016-12-20 | 2017-06-30 | 北京桑德环境工程有限公司 | A kind of film cleans aeration energy-saving control system |
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2018
- 2018-08-09 CN CN201810900594.XA patent/CN109133333A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376554A (en) * | 2008-10-08 | 2009-03-04 | 闫长军 | Dynamic control method and apparatus for sewage disposal |
| CN201932952U (en) * | 2011-02-15 | 2011-08-17 | 天津天一爱拓科技有限公司 | Membrane bio-reactor (MBR) device capable of intermittently eroding aerated gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573974A (en) * | 2020-05-15 | 2020-08-25 | 浙江开创环保科技股份有限公司 | Self-adaptive distributed sewage treatment device and treatment process |
| CN112456731A (en) * | 2020-11-13 | 2021-03-09 | 苏州弘毅环境科技有限公司 | Sewage treatment control method and system based on MBR process |
| CN112456731B (en) * | 2020-11-13 | 2021-08-13 | 苏州弘毅环境科技有限公司 | Sewage treatment control method and system based on MBR process |
| CN113786718A (en) * | 2021-09-28 | 2021-12-14 | 吉林海普科技发展有限公司 | Water paint spraying VOC biodegradation purification system |
| CN114804548A (en) * | 2022-06-06 | 2022-07-29 | 河南省鹏达羽绒制品有限公司 | Sewage treatment process capable of stably running under conditions of large water amount and small water amount severe fluctuation |
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