CN107089725A - A kind of forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment - Google Patents
A kind of forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment Download PDFInfo
- Publication number
- CN107089725A CN107089725A CN201710300058.1A CN201710300058A CN107089725A CN 107089725 A CN107089725 A CN 107089725A CN 201710300058 A CN201710300058 A CN 201710300058A CN 107089725 A CN107089725 A CN 107089725A
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- China
- Prior art keywords
- osmosis membrane
- forward osmosis
- magnetic
- driving liquid
- wastewater treatment
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/48—Devices for applying magnetic or electric fields
Abstract
The invention discloses a kind of forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment, including magnetic bio reaction module and forward osmosis membrane separation module, wherein, the magnetic bio reaction module includes bioreactor and the aerator and magnetic bio-carrier located at bioreactor bottom, the forward osmosis membrane separation module includes driving liquid storage tank, drive liquid intake pump, forward osmosis membrane component, salinity supplements tank and driving liquid goes out water pot, the forward osmosis membrane component is in the bioreactor, the driving liquid storage tank, driving liquid intake pump and forward osmosis membrane component connect to form circulation by pipeline, the salinity supplement tank and driving liquid go out the water pot connection driving liquid storage tank.The present invention uses forward osmosis membrane, at the same add magnetic bio-carrier, with improve producing water water quality, reduce fouling membrane, extend film service life, further reduce sludge yield and it is environment-friendly the features such as.
Description
Technical field
Given birth to the present invention relates to water pollution processing equipment, more particularly to a kind of forward osmosis membrane magnetic anaerobism for wastewater treatment
Thing reactor.
Background technology
The treatment for reuse of sanitary sewage and industrial wastewater is hot issue all the time, and this both solves pollution problem,
Water resource fully can effectively be utilized again simultaneously, with certain economic benefit, while being anticipated to built environment friendly society
Justice is great.
Anaerobic membrane bioreactor (Anaerobic Membrane Bio-Reactor, abbreviation AnMBR) is a kind of anaerobism
The water technology that biotechnology and efficient membrane separation technique are combined, it mainly uses the film being immersed in anaerobic organism pond
Component realizes anaerobe and larger molecular organicses in separation of solid and liquid, throttling pond.The technology, which has, keeps high microorganism dense
Spend, improve reactor organic loading, reduce sewage treatment facility floor space, reduce sludge yield, some difficult degradations is divided greatly
The advantages of sub- organic matter is at utmost degraded, shows good development prospect and market potential.
Although AnMBR technologies are asked with the incomparable advantage of conventional sewage biochemical treatment there is also more formidable
Topic.It is primarily due in biofilter that aerobic, anaerobism alternate environment is not present, it is difficult to grow polyP bacteria, to ensure effluent quality, needs
To be combined with other reinforced phosphor-removing techniques.Secondly AnMBR has the features such as sludge yield is few, but sludge flco is scattered, actual
Sludge blockage film occurs in, the problems such as causing fouling membrane etc..Fouling membrane causes water flux decay very fast, membrane lifetime contracting
Subtract, investment and operating cost increase.Existing AnMBR these defects and problem limit AnMBR application, hinder
AnMBR Technique Popularizing.At present, the research of AnMBR technologies will focus on：(1) solution of membrane pollution problem；(2) new membrane material
Research and development of material etc..
The content of the invention
Goal of the invention：The present invention is directed to drawbacks described above present in prior art there is provided a kind of for wastewater treatment
Forward osmosis membrane magnetic anaerobic biological reactor (AnMBR), the AnMBR uses forward osmosis membrane, while magnetic bio-carrier is added, tool
It is improved producing water water quality, the service life for reducing fouling membrane, extending film, further reduces sludge yield and the spy such as environment-friendly
Point.
Technical scheme：Forward osmosis membrane magnetic anaerobic biological reactor of the present invention for wastewater treatment includes magnetic
Biological respinse module and forward osmosis membrane separation module, wherein, the magnetic bio reaction module includes bioreactor and set
Aerator and magnetic bio-carrier in bioreactor bottom, the forward osmosis membrane separation module include driving liquid and deposited
Storage tank, driving liquid intake pump, forward osmosis membrane component, salinity supplement tank and driving liquid go out water pot, and the forward osmosis membrane component is located at
In the bioreactor, the driving liquid storage tank, driving liquid intake pump and forward osmosis membrane component connect to be formed by pipeline
Circulation, the salinity supplement tank and driving liquid go out the water pot connection driving liquid storage tank.
Further, the reactor can also include magnetic material and sludge separation module, the magnetic material and dirt
Mud separation module includes magnetic drum separator, magnetic reclaimer and sludge treatment device, and the magnetic drum separator is connected by pipeline
The bottom of the bioreactor, the magnetic reclaimer and sludge treatment device connect the magnetic drum separator respectively, described
Magnetic reclaimer also connects the bioreactor by pipeline.Magnetic material is used for magnetic material and dirt with sludge separation module
Mud is separated, and reclaims magnet and sewage treatment.
Further, it is additionally provided with spoil disposal valve at the pipeline between the magnetic drum separator and bioreactor.Convenient control
When system carries out magnetic material separates with sludge.
Further, the forward osmosis membrane component includes forward osmosis membrane and is connected to the driving liquid of forward osmosis membrane entrance to enter
Water pipe and the driving liquid water producing pipe for being connected to forward osmosis membrane outlet.
Further, the magnetic bio reaction module also includes gas collector and film force (forcing) pump, the gas
Collection device entrance is connected to the top of bioreactor, outlet connection film force (forcing) pump connection aerator.It may be said that making portion
Divide gas to return aerator by film force (forcing) pump, realize recycling for gas.
Further, air valve is provided with the pipeline between the film force (forcing) pump and aerator.
Further, it is provided with inlet valve at the pipeline between the driving liquid intake pump and forward osmosis membrane component.
Further, the forward osmosis membrane separation module also includes flowmeter, and the flowmeter is located at inlet valve and just
At pipeline between permeable membrane element.
Further, the forward osmosis membrane is cellulose acetate film or polyamide composite film；The form of film used is Flat Membrane
Or hollow-fibre membrane.Forward osmosis membrane can be included section for I-shaped membrane support and stick to the one of membrane support both sides respectively
Arrange doughnut cellulose acetate film.
Further, the magnetic bio-carrier is specially the combination of ferroso-ferric oxide and polyacrylamide, or magnetic and
The combination for the modified polypropene being magnetized, or porous mineral float stone and magnet combination.
The present invention combines magnetic bio-carrier and the characteristic of forward osmosis membrane invents a kind of positive infiltration for wastewater treatment
Film magnetic anaerobic biological reactor.On the one hand, existing immersion bioreactor is replaced using new forward osmosis membrane separation system
System, is changed to permeable pressure head driving by traditional pressure-driven, can further improve reduction fouling membrane.On the other hand, in anaerobism
Magnetic bio-carrier is added in biofilm reactor, the generation of sludge flco in anaerobic environment can be further reduced, while can be with
Micro organism quantity in raising system, so that the contaminant removal capacity of consolidation system.Magnetic material is set with sludge piece-rate system
Put, not only efficiently separate the sludge and magnetic bio-carrier during spoil disposal, and magnetic bio-carrier is carried out to reclaim profit
With improving the utilization rate of magnetic bio-carrier.Therefore, invention achieves by forward osmosis membrane and magnetic bio-carrier come strong
Change the ability that anaerobic membrane bioreactor handles hardly degraded organic substance, improve effluent quality, while poly- using magnetic bio-carrier
Collect the sludge flco in anaerobic environment, so that the degree to mitigate fouling membrane.
Beneficial effect：Compared with prior art, its remarkable advantage is the present invention：
(1) forward osmosis membrane, magnetic bio-carrier are combined with AnMBR, the life of forward osmosis membrane magnetic anaerobism is proposed first
Thing reactor.
(2) it is that a kind of can produce clean water and unique technology of low energy consumption or zero energy consumption using positive process of osmosis.At this
During, water is transmitted by permoselective membrane from high water penetration intermediate pressure section to low water penetration intermediate pressure section, is without impressed pressure
It can be achieved, separating effect is obvious and anti-fouling performance is good.
(3) low-intensity magnetic field formed in the reactor using magnetic bio-carrier, can more efficiently remove COD and TP,
The sludge flco in anaerobic environment can be assembled, there is facilitation to the minimizing of sludge, while certain magnetic field intensity is also
Microbial activity can be improved.
(4) using magnetic material and sludge piece-rate system, recycling is carried out to the magnetisable material contained in sludge.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
A kind of forward osmosis membrane magnetic anaerobic biological reactor is present embodiments provided, is reacted referring to Fig. 1, including magnetic bio
Device module, forward osmosis membrane separation module and magnetic material and sludge separation module.Magnetic bio reaction module includes：Biological respinse
Device 1, magnetic bio-carrier 2 and aerator 3, magnetic bio-carrier 2 and aerator 3 are laid in the inner bottom part of bioreactor 1.
Magnetic bio-carrier 2 can be in fixed reactor anaerobe, form floc particle, and decelerating membrane pollution speed.It is biological anti-
The external gas collector 4 in top of device 1 is answered, portion gas returns aerator 3 by film force (forcing) pump 5 and air valve 6, realized
Gas is recycled.Forward osmosis membrane separation module includes driving liquid storage tank 7, driving liquid intake pump 8, inlet valve 9, flow
Meter 10, forward osmosis membrane component, salinity supplement tank 19 and driving liquid go out water pot 11, and forward osmosis membrane component is located at the biological respinse
In device 1, driving liquid storage tank 7, driving liquid intake pump 8, inlet valve 9, flowmeter 10, forward osmosis membrane component are connected by pipeline
Driving fluid circulation is formed, driving fluid circulation constantly provides the driving liquid of suitable concentration into forward osmosis membrane component,
Driving liquid refers to the inorganic salt solution of hyperosmosis, the general sodium chloride solution from suitable concentration.Salinity supplement tank 19 with
And driving liquid goes out water pot 11 and connects the driving liquid storage tank, when the liquid level in driving liquid storage tank 1 is higher than certain altitude, driving
Liquid flows into driving liquid and goes out water pot 11；When the driving liquid concentration in driving liquid storage tank is not enough, salinity supplement tank 19 is mended to it
Give.Forward osmosis membrane component is made up of driving liquid water inlet pipe 12, forward osmosis membrane 13 and driving liquid water producing pipe 14, and forward osmosis membrane 13 is tool
There is the pellicle for cutting salt action.The also external spoil disposal valve 15 in the bottom of bioreactor 1, connection magnetic material and sludge splitting die
Block.Magnetic material includes magnetic drum separator 16, magnetic reclaimer 17 and sludge treatment device 18 with sludge separation module.It is raw
The excess sludge that thing reactor 1 is produced is discharged into magnetic drum separator 16, by the magnetic material separated through magnetic reclaimer 17
Progress is recycled in bioreactor 1, and the excess sludge separated is discharged into sludge treatment device 18.
The present invention the course of work be：By taking domestic sewage from campus as an example, its water quality is COD：170~220mg/L, NH4+-
N：20~30mg/L, TP：1.5~2mg/L.Sewage enters in bioreactor 1, the environment provided in magnetic bio-carrier 10
Under, flowed into by water inlet pipe 12 in forward osmosis membrane 13, then flowed out by water producing pipe 14.It our experiments show that, in the present embodiment, to pollution
The clearance of material is higher, and water outlet COD is stable not to be detected in 0~5mg/L, NH4+-N in 10~15mg/L or so, TP.Water outlet water
It is of fine quality good, meet national standard《Urban sewage reutilization urban reclaimed water water quality (GB/T 18920-2002)》It is required that.Magnetic
Bio-carrier 2 has good aggtegation to the sludge flco produced in anaerobic biological reactor, because it strengthens excess sludge
Sludge reduction onsite function so that suspended sludge amount can reduce nearly half.
Above disclosed is only a kind of preferred embodiment of the invention, it is impossible to the right model of the present invention is limited with this
Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (10)
1. a kind of forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment, it is characterised in that：It is anti-including magnetic bio
Module and forward osmosis membrane separation module are answered, wherein, the magnetic bio reaction module includes bioreactor and located at biology
The aerator and magnetic bio-carrier of reactor bottom, the forward osmosis membrane separation module include driving liquid storage tank, water inlet
Pump, forward osmosis membrane component, salinity supplement tank and driving liquid go out water pot, and the forward osmosis membrane component is located at the bioreactor
Interior, the driving liquid storage tank, intake pump and forward osmosis membrane component connect to form circulation by pipeline, the salinity supplement tank with
Driving liquid goes out the water pot connection driving liquid storage tank.
2. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 1, it is characterised in that：Also include
Magnetic material and sludge separation module, the magnetic material and sludge separation module include magnetic drum separator, magnetic reclaimer and
Sludge treatment device, the magnetic drum separator connects the bottom of the bioreactor by pipeline, the magnetic reclaimer and
Sludge treatment device connects the magnetic drum separator respectively, and the magnetic reclaimer also connects the biological respinse by pipeline
Device.
3. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 2, it is characterised in that：The magnetic
Spoil disposal valve is additionally provided with pipeline between drum separator and bioreactor.
4. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 1, it is characterised in that：It is described just
Permeable membrane element includes forward osmosis membrane and is connected to the driving liquid water inlet pipe of forward osmosis membrane entrance and is connected to forward osmosis membrane
The driving liquid water producing pipe of mouth.
5. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 1, it is characterised in that：The magnetic
Property biological respinse module also include gas collector and film force (forcing) pump, the gas collector entrance is connected to biological anti-
Answer the top of device, outlet connection film force (forcing) pump connection aerator.
6. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 5, it is characterised in that：It is described thin
Air valve is provided with pipeline between film force (forcing) pump and aerator.
7. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 1, it is characterised in that：It is described to drive
Inlet valve is provided with pipeline between hydrodynamic intake pump and forward osmosis membrane component.
8. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 7, it is characterised in that：It is described just
Permeable membrane separation module also includes flowmeter, and the flowmeter is at the pipeline between inlet valve and forward osmosis membrane component.
9. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 1, it is characterised in that：It is described just
Permeable membrane is cellulose acetate film or polyamide composite film；The form of film used is Flat Membrane or hollow-fibre membrane.
10. the forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment according to power 1, it is characterised in that：It is described
Magnetic bio-carrier is specially the combination of ferroso-ferric oxide and polyacrylamide, or magnetic and the modified polypropene being magnetized group
Close, or porous mineral float stone and magnet combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710300058.1A CN107089725A (en) | 2017-04-28 | 2017-04-28 | A kind of forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment |
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| CN201710300058.1A CN107089725A (en) | 2017-04-28 | 2017-04-28 | A kind of forward osmosis membrane magnetic anaerobic biological reactor for wastewater treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651420A (en) * | 2021-08-16 | 2021-11-16 | 北控水务(中国)投资有限公司 | Anaerobic self-driven membrane reactor suitable for high COD wastewater treatment and regeneration |
| WO2023019806A1 (en) * | 2021-08-16 | 2023-02-23 | 北控水务(中国)投资有限公司 | Anaerobic self-driven membrane reactor suitable for high cod wastewater treatment and regeneration |
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| CN101397168A (en) * | 2008-11-05 | 2009-04-01 | 江苏大学 | Method for decelerating membrane pollution by adding magnetic ferrite powder |
| CN101786768A (en) * | 2010-03-09 | 2010-07-28 | 天津膜天膜工程技术有限公司 | Forward osmosis membrane bioreactor |
| CN102786188A (en) * | 2012-08-29 | 2012-11-21 | 哈尔滨工业大学 | Forward osmosis membrane bioreactor with magnetic nanoparticles serving as driving liquid |
| CN104016477A (en) * | 2014-05-13 | 2014-09-03 | 浙江师范大学 | Immersed anaerobic positive permeable membrane bioreactor |
| CN104649519A (en) * | 2015-02-10 | 2015-05-27 | 河海大学 | Sewage treatment device and method by combining bio-ferric process and anaerobic MBR method |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397168A (en) * | 2008-11-05 | 2009-04-01 | 江苏大学 | Method for decelerating membrane pollution by adding magnetic ferrite powder |
| CN101786768A (en) * | 2010-03-09 | 2010-07-28 | 天津膜天膜工程技术有限公司 | Forward osmosis membrane bioreactor |
| CN102786188A (en) * | 2012-08-29 | 2012-11-21 | 哈尔滨工业大学 | Forward osmosis membrane bioreactor with magnetic nanoparticles serving as driving liquid |
| CN104016477A (en) * | 2014-05-13 | 2014-09-03 | 浙江师范大学 | Immersed anaerobic positive permeable membrane bioreactor |
| CN104649519A (en) * | 2015-02-10 | 2015-05-27 | 河海大学 | Sewage treatment device and method by combining bio-ferric process and anaerobic MBR method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651420A (en) * | 2021-08-16 | 2021-11-16 | 北控水务(中国)投资有限公司 | Anaerobic self-driven membrane reactor suitable for high COD wastewater treatment and regeneration |
| WO2023019806A1 (en) * | 2021-08-16 | 2023-02-23 | 北控水务(中国)投资有限公司 | Anaerobic self-driven membrane reactor suitable for high cod wastewater treatment and regeneration |
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Application publication date: 20170825 |
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