CN104355401A - Integral composite membrane bioreactor device - Google Patents
Integral composite membrane bioreactor device Download PDFInfo
- Publication number
- CN104355401A CN104355401A CN201410576469.XA CN201410576469A CN104355401A CN 104355401 A CN104355401 A CN 104355401A CN 201410576469 A CN201410576469 A CN 201410576469A CN 104355401 A CN104355401 A CN 104355401A
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- CN
- China
- Prior art keywords
- membrane
- fillers
- filler
- biological culture
- biological inoculum
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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
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1226—Particular type of activated sludge processes comprising an absorbent material suspended in the mixed liquor
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/004—Apparatus and plants for the biological treatment of water, waste water or sewage comprising a selector reactor for promoting floc-forming or other bacteria
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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
- C02F2305/00—Use of specific compounds during water treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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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
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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)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to the technical field of wastewater treatment, in particular to an integral composite membrane bioreactor device. The integral composite membrane bioreactor device comprises a membrane assembly, wherein an enclosing net is arranged on the periphery of the membrane assembly; a plurality of biological culture fillers are arranged between the membrane assembly and the enclosing net; the biological culture fillers are elastic small balls; the small balls are full of a large amount of microporous structures from the surfaces to the interiors; the microporous structures are densely distributed to form a network structure; the diameters of the biological culture fillers are larger than those of meshes of the enclosing net. The biological culture fillers are enclosed on the periphery of the membrane assembly, and a filler pool and a filler pool aerating device are not required to be arranged alone, so that the floor area is saved and the aerating efficiency is improved; relatively fixed positions of the biological culture fillers are ensured, so that high-efficiency microbes can be fixed better and are not damaged by mechanical forces of other parts, or influence on running of other devices of a system can be avoided; the biological culture fillers directly contact membrane filaments, so that pollution to the membrane can be relieved.
Description
Technical field
The present invention relates to technical field of waste water processing, particularly relate to a kind of monoblock type hybrid mbr device.
Background technology
Polymer (biological inoculum) filler, is limited in the finite spaces such as the small grid of gel or microcapsule by microorganism, matrix can be allowed to infiltrate and product diffuses out simultaneously, and affect little on microorganism active, granule strength is high.An average bead enriched microorganism reaches 100,000, significantly can improve microorganism concn.Under this structural state, protozoon, metazoan equal-volume is excessive can not enter, and is blocked in outside, only has really useful to drainage sunk well bacterium in the surface of gel and inner breeding, could reach the high concentration of useful bacterium, high gatheringization.Keep stable, directed acclimated microorganism flora, be conducive to specific water treatment.
Hybrid biosystem (membrane bioreactor) technology is a kind of form of submerged MBRs.By adding filler in MBR, improving the concentration of effective microbe, strengthening its activity, strengthen the degradation capability to hardly degraded organic substance, improve degradation rate, and improve the removal usefulness of original biological treatment system to hardly degraded organic substance, and membrane pollution problem be also play good slow down effect.
The design of current hybrid biosystem device is all preposition filler region in MBR pond, the pond reducing part MBR pond holds, decrease the usage quantity of membrane module, but it is the same with MBR, packing area also needs higher aeration, the power consumption that aeration rate brings accounts for more than 70% of entire system energy consumption, and adding overall floor space increases, and strongly limit the popularization of hybrid biosystem.
Summary of the invention
There is for prior art the defect that hybrid biosystem floor space is large, aeration energy consumption is high, film easily pollutes, the invention provides the monoblock type hybrid mbr device that a kind of floor space is little, aeration energy consumption is low, degradation capability is strong, film contamination resistance is strong.
For achieving the above object, the present invention adopts following technical scheme:
A kind of monoblock type hybrid mbr device, comprise membrane module, described membrane module surrounding encloses net and encloses, arrange some biological inoculum fillers between membrane module and net enclose, described biological inoculum filler is elastic pellet, and bead is covered with a large amount of microvoid structure from surface to inside, microvoid structure gathers and forms network structure, the hardness of described biological inoculum filler is less than shore hardness C30 degree, and the diameter of biological inoculum filler is greater than net purse seine eye, and the diameter of microvoid structure is 10um-20um.Above-mentioned monoblock type hybrid mbr device is placed in membrane cisterna, aeration bottom membrane cisterna.Such structure does not need to set up filler pond and filler pond aerating apparatus, saves occupation of land, improves aeration efficiency; Biological inoculum filler is wrapped in membrane module by purse seine, and filler can not enter other regions or flow away with water, better secures high-effective microorganism, by the damage of the mechanical force of other parts or can not impact the operation of other devices of system; Biological inoculum filler directly contacts with film silk, hits by elastic collision the gel coat structure that shearing force effectively changes the initial stage, extends cake layer formation time, can decelerating membrane pollution.
As preferably, the diameter of described biological inoculum filler is 3-5mm, and proportion is 1.01-1.10, and hardness is less than shore hardness C30 degree, and the diameter of microvoid structure is 10um-20um.The diameter of filler bead can reach the effect of good decomposing organic matter, can not be gone out again by net purse seine ophthalmorrhea, and this specific gravity range is conducive to biological inoculum filler bead and keeps suspended state, and durometer level ensures to cause damage to film silk.
As preferably, before described biological inoculum filler adds, bacterium source has been used to carry out flora domestication.Keep stable, directed acclimated microorganism flora, be conducive to specific water treatment.
As preferably, the membrane element of described membrane module is flat sheet membrane, hollow-fibre membrane, tubular membrane.
As preferably, described purse seine is PVC, PP, non-woven fabrics.
A kind of monoblock type hybrid mbr device of the present invention, by biological inoculum filler being enclosed in the surrounding of membrane module, not needing to set up filler pond and filler pond aerating apparatus, saves occupation of land, improve aeration efficiency; Biological inoculum filler is wrapped in membrane module by purse seine, and filler can not enter other regions or flow away with water, better secures high-effective microorganism, by the damage of the mechanical force of other parts or can not impact the operation of other devices of system; Biological inoculum filler directly contacts with film silk, hits by elastic collision the gel coat structure that shearing force effectively changes the initial stage, extends cake layer formation time, can decelerating membrane pollution.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of embodiment of the present invention biological inoculum filler.
Embodiment
Below in conjunction with Fig. 1-Fig. 2, the present invention is described further with embodiment.
Embodiment 1
A kind of monoblock type hybrid mbr device, as shown in Figure 1, a kind of monoblock type hybrid mbr device, comprise membrane module 1, membrane module 1 comprises some membrane elements and header, and it is inner that membrane element is located at membrane module 1 at each interval, membrane element is hollow-fibre membrane, and material is PVDF.Described membrane module 1 surrounding encloses net and encloses 2, and nonwoven cloth material selected by purse seine 2.Membrane module 1 and net arrange some biological inoculum fillers 3 between enclosing 2, described biological inoculum filler 3 is elastic pellet, as shown in Figure 2, bead is covered with a large amount of microvoid structure 4 from surface to inside, microvoid structure 4 gathers and forms network structure, the hardness of described biological inoculum filler 3 selects shore hardness C20 degree, and the diameter of biological inoculum filler 3 is greater than net and encloses 2 meshes, and the diameter of microvoid structure 4 is 15um.The diameter of described biological inoculum filler 3 is 4mm, and proportion is 1.05.Bacterium source has been used to carry out flora domestication before biological inoculum filler 3 adds.Non-woven fabrics selected by purse seine 2.
Above-mentioned monoblock type hybrid mbr device is placed in membrane cisterna, aeration bottom membrane cisterna, biological inoculum filler 3 is suspended between membrane module 1 and purse seine 2 after membrane cisterna water inlet, and the water outlet on each membrane element is all communicated with header by pipeline, and the outlet of header is connected with product water pump.
Operational process: waste water squeezes into membrane cisterna through intake pump, enter in membrane module 1 after mixing with the active sludge in membrane cisterna, aerator is by aeration tube air feed, mixed solution mud and biological inoculum filler 3 are in fluidized state in membrane module 1, the collision of continuous effective is carried out to membrane element and washes away, the header multiparity water pump suction water outlet of membrane module 1, swabbing pressure is-1 ~-50kPa, and permeant flux is at 1 ~ 50LMH; Filler dosage is active sludge volume 1% ~ 20%, produces water pump intermittent operation, and suction 8 ~ 15min, stops taking out 2 ~ 5min; Aerator, controls gas-water ratio at 15:1 ~ 35:1; When permeant flux is reduced to 80% of design flux, need to clean membrane module 1.Design temperature is 15 DEG C ~ 40 DEG C.
Described waste water uses the aerated grit chamber water outlet of certain urban wastewater treatment firm municipal wastewater processing item, this treatment plant's treatment capacity 5000 m
3/ d, the COD of waste water
crbe 200 ~ 400 mg/L, ammonia nitrogen is 30 ~ 80 mg/L, TN(total nitrogen content) be 32 ~ 130 mg/L, TP(total phosphorous) be 2 ~ 5 mg/L.Through above-mentioned operational process, water outlet CODCr mean value 17.4 mg/L after process, ammonia nitrogen mean value 4.5 mg/L, TN mean value 11.5 mg/L, TP mean value 0.41 mg/L, one-level A standard that water outlet reaches " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002).Because the cleaning interval lengthens the minimizing with membrane element replacement charge, running cost reduces 30% relative to similar technique.
Embodiment 2
A kind of structure of monoblock type hybrid mbr device and operation scheme are as embodiment 1, described waste water uses certain petrochemical wastewater processing item, water-quality constituents is complicated, containing a large amount of halohydrocarbon, long chain alkane, the Persistent organic pollutants matter such as aromatic hydrocarbon, through above-mentioned operational process, after process, water outlet detects through GC-MS, the content of long chain alkane significantly declines, benzene series class simultaneously, ester class and aldoketones material are almost all removed, water outlet COD, ammonia nitrogen, SS and oleaginousness index are all better than national sewage comprehensive emission standard primary standard (GB8978-1996).
Be only preferred embodiment of the present invention in sum, be not used for limiting practical range of the present invention, all equivalences done according to the content of the application's the scope of the claims change and modify, and all should be technology category of the present invention.
Claims (5)
1. a monoblock type hybrid mbr device, comprise membrane module (1), it is characterized in that: described membrane module (1) surrounding encloses net and encloses (2), membrane module (1) and net enclose between (2) and arrange some biological inoculum fillers (3), described biological inoculum filler (3) is elastic pellet, bead is covered with a large amount of microvoid structure (4) from surface to inside, and microvoid structure (4) gathers and forms network structure, and the diameter of biological inoculum filler (3) is greater than net and encloses (2) mesh.
2. a kind of monoblock type hybrid mbr device according to claim 1, it is characterized in that: the diameter of described biological inoculum filler (3) is 3-5mm, proportion is 1.01-1.10, and hardness is less than shore hardness C30 degree, and the diameter of microvoid structure (4) is 10um-20um.
3. a kind of monoblock type hybrid mbr device according to claim 1, is characterized in that: used bacterium source to carry out flora domestication before described biological inoculum filler (3) adds.
4. a kind of monoblock type hybrid mbr device according to claim 1, is characterized in that: the membrane element of described membrane module (1) is flat sheet membrane, hollow-fibre membrane, tubular membrane.
5. a kind of monoblock type hybrid mbr device according to claim 1, is characterized in that: described purse seine (2) uses PVC, PP, non-woven fabrics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410576469.XA CN104355401A (en) | 2014-10-27 | 2014-10-27 | Integral composite membrane bioreactor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410576469.XA CN104355401A (en) | 2014-10-27 | 2014-10-27 | Integral composite membrane bioreactor device |
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| Publication Number | Publication Date |
|---|---|
| CN104355401A true CN104355401A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410576469.XA Pending CN104355401A (en) | 2014-10-27 | 2014-10-27 | Integral composite membrane bioreactor device |
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| CN (1) | CN104355401A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773815A (en) * | 2015-03-23 | 2015-07-15 | 厦门大学 | Method utilizing active carbon to control MBR membrane pollution |
| CN106082433A (en) * | 2016-08-22 | 2016-11-09 | 上海亚威环保科技有限公司 | Biological solid-carrying type film biological unit reactor |
| CN107986433A (en) * | 2017-12-15 | 2018-05-04 | 山东建筑大学 | A kind of porous aggregate cladded type MBR devices and sewage water treatment method |
| CN115594363A (en) * | 2022-11-15 | 2023-01-13 | 湖州鼎泰软片膜科技有限公司（Cn） | Membrane group ware |
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| CN1948183A (en) * | 2006-10-30 | 2007-04-18 | 南昌大学 | Film aeration biosuspension reactor |
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| CN102553450A (en) * | 2012-02-08 | 2012-07-11 | 广州市环境保护工程设计院有限公司 | Method for preventing split membrane bio-reactor (MBR) flat membrane pollution |
| CN102557240A (en) * | 2012-01-18 | 2012-07-11 | 湘潭大学 | Electromagnetic aerobic membrane bio-reactor for treating wastewater |
| JP2013240794A (en) * | 2008-11-11 | 2013-12-05 | Kobelco Eco-Solutions Co Ltd | Membrane separation activated sludge treatment apparatus, and membrane separation activated sludge treatment method |
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2014
- 2014-10-27 CN CN201410576469.XA patent/CN104355401A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1948183A (en) * | 2006-10-30 | 2007-04-18 | 南昌大学 | Film aeration biosuspension reactor |
| CN101323484A (en) * | 2008-07-25 | 2008-12-17 | 山东大学 | Nesting type multidimensional membrane assembly dynamic membrane bioreactor |
| JP2013240794A (en) * | 2008-11-11 | 2013-12-05 | Kobelco Eco-Solutions Co Ltd | Membrane separation activated sludge treatment apparatus, and membrane separation activated sludge treatment method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773815A (en) * | 2015-03-23 | 2015-07-15 | 厦门大学 | Method utilizing active carbon to control MBR membrane pollution |
| CN106082433A (en) * | 2016-08-22 | 2016-11-09 | 上海亚威环保科技有限公司 | Biological solid-carrying type film biological unit reactor |
| CN107986433A (en) * | 2017-12-15 | 2018-05-04 | 山东建筑大学 | A kind of porous aggregate cladded type MBR devices and sewage water treatment method |
| CN115594363A (en) * | 2022-11-15 | 2023-01-13 | 湖州鼎泰软片膜科技有限公司（Cn） | Membrane group ware |
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Application publication date: 20150218 |