CN101874987A - Pipe type membrane element and submerged membrane bioreactor - Google Patents
Pipe type membrane element and submerged membrane bioreactor Download PDFInfo
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- CN101874987A CN101874987A CN2009100502539A CN200910050253A CN101874987A CN 101874987 A CN101874987 A CN 101874987A CN 2009100502539 A CN2009100502539 A CN 2009100502539A CN 200910050253 A CN200910050253 A CN 200910050253A CN 101874987 A CN101874987 A CN 101874987A
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Abstract
The invention discloses a pipe type membrane element and a submerged membrane bioreactor. The submerged membrane bioreactor comprises a reaction tank and a membrane element, wherein the membrane element is positioned in the reaction tank and comprises an inner cavity and a water-permeable cylindrical supporting layer; the outer surface of the supporting layer is wrapped with an organic filter membrane layer; the upper end of the inner cavity is closed, and the lower end of the inner cavity is provided with a water outlet; and the reaction tank is also internally provided with a water collecting disk connected with the water outlet of the membrane element. The invention is difficult to break and block and can effectively reduce the cost of the membrane element and decrease the times of chemical cleaning, thereby prolonging the service life of a membrane and reducing the operation cost.
Description
Technical field
The present invention relates to water and sewage treatment equipment, be specifically related to membrane bioreactor and membrane component thereof.
Background technology
Existing membrane bioreactor MBR technology mainly be utilize the aperture about 0.1 micron, the micro-filtration membrane element of the about 1mm of film silk internal diameter, adopt built-in immersion technology, come the reacted activated sludge mud mixture of separating bio, reach the purpose of purification of water quality.The immersion hollow-fiber membrane bioreactor because cost advantage is occupied most practical application engineering cases, is the main application form of membrane biological reactor process.But in practical engineering application, hollow-fibre membrane exists several tangible technological deficiencies: 1, filament fracture easily in the vigorous stirring process; 2, clean difficulty, generally need to take out biological reaction pool and clean specially; 3, because high-bulk-density, make between the filament very easily by sludge blockage in the reaction tank, wherein the obstruction of membrane component two terminal membrane silks and fluid sealant joint portion is modal sludge blockage.After the obstruction, membrane flux sharply descends, and goes out water unstable, causes the filament fracture easily, and improves and clean difficulty.It is one of major obstacle of MBR process engineering application that film stops up.
Summary of the invention
The technical problem that the present invention will solve provides the tubular membrane element of a kind of difficult obstruction and fracture.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of tubular membrane element, comprise inner chamber and tubular supporting layer that can be permeable, and the outer surface of supporting layer is coated with organic filter membranous layer, and the end of described inner chamber is provided with delivery port.
Preferably, described supporting layer is made of porous organic material.
Preferably, described organic filter membranous layer is made of micro-filtration membrane.
Preferably, described organic filter membranous layer is made of milipore filter.
Preferably, an end of described inner chamber is provided with delivery port, other end sealing.
Preferably, the diameter of described inner chamber is 4-12mm.
The invention has the beneficial effects as follows: owing to adopted tubular structure, compare with tunica fibrosa, the diameter of membrane component of the present invention can be done greatlyyer, and inside is provided with supporting layer, makes membrane component have excellent mechanical intensity, easy fracture not, long service life; The use that can be arranged in parallel can not piled up tied up in knots, therefore is difficult for stopping up yet, and cleaning is also than being easier to.
Another technical problem that the present invention will solve provides a kind of integral type film biological reactor of using above-mentioned tubular type membrane component.
This integral type film biological reactor comprises reaction tank and is positioned at the membrane component of reaction tank, described membrane component comprises inner chamber and tubular supporting layer that can be permeable, the outer surface of supporting layer is coated with organic filter membranous layer, the upper end closed of described inner chamber, the lower end of inner chamber is provided with delivery port, also is provided with water-collecting tray in the reaction tank and is connected with the delivery port of described membrane component.
Preferably, the below of described membrane component also is provided with aeration tube.
Advantage of the present invention is:
1, kept the original advantage of immersion fiber membrane biological reaction device substantially, as: assembly high-bulk-density, the excellent amount of effluent quality kept, occupation area of equipment is little, sludge volume is few, nitrated ability is strong, simple in structure etc.;
2, membrane component can rely on self intensity to stand in voluntarily in the water, has reduced support frame, has reduced cost;
3, membrane component is from the bottom water outlet, and top does not have the water outlet termination, has solved hollow fibre membrane component and in the end, top blocking problem has taken place easily;
4, because the stable of film water flow guaranteed in the solution of membrane component termination blockage problem;
5, because the solution of membrane component termination blockage problem can effectively reduce the number of times of membrane component Chemical cleaning, thereby prolong membrane lifetime, reduce operating cost;
6, the high strength that has of tubular membrane element itself can effectively reduce film silk fracture probability, thereby prolongs the service life of membrane component.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is the vertical profile structural representation of membrane component of the present invention.
Fig. 2 is the cross sectional representation of membrane component of the present invention.
Fig. 3, Fig. 4 are two kinds of embodiment of membrane component of the present invention.
Fig. 5 is the schematic diagram of integral type film biological reactor of the present invention.
Fig. 6 is the operation principle schematic diagram of integral type film biological reactor of the present invention.
Fig. 7 is the schematic diagram of water-collecting tray.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of tubular membrane element of the present invention comprises inner chamber 11 and supporting layer cylindraceous 12, and the outer surface of supporting layer 12 is coated with organic filter membranous layer 13.Wherein, organic filter membranous layer 13 can be the micro-filtration membrane of surface apertures in 0.1 micron level, also can be the milipore filter of surface apertures in 0.01 micron level, is formed by macromolecule material coating, and the material of membrane coat can be polyether sulfone, polysulfones, Kynoar etc.Supporting layer 12 can be permeable, allows water to enter inner chamber by organic filter membranous layer, and supporting layer 12 is made of the porous organic material of strengthening, such as adopting porous high-density polyester material.Because the existence of supporting layer, the tubular membrane element can have thicker diameter, can be designed as different internal diameters such as 4mm, 6mm, 8mm, 10mm or 12mm such as inner chamber 11, and the tubular membrane element can rely on the intensity of self to stand in the water voluntarily.The height of tubular membrane element can be designed as 200mm, 400mm, 600mm, 800mm, 1000mm, 1200mm and does not wait, to adapt to the different application occasion.
The end of inner chamber 11 is provided with delivery port 14, and delivery port 14 can be arranged on an end of inner chamber, other end sealing, and blind end can be provided with supporting layer and filter membrane (as Fig. 3), and a sealing cap 15 (as Fig. 4) also can be set.
As shown in Figure 5, above-mentioned tubular type membrane component can be applied in the integral type film biological reactor, and water-collecting tray 3 is fixed in the reaction tank 2, the upper end closed of tubular membrane element 1, and the delivery port of lower end is connected with water-collecting tray 3.Water-collecting tray 3 is casings of a relative closure, and as shown in Figure 7, its upper surface has hole 31, can be connected with the tubular membrane element, and its side is connected with suction pump by collector pipe.Tubular membrane element 1 relies on the intensity of self vertically to arrange, and is immersed in fully in the sewage of reaction tank.Consistent with traditional immersion hollow-fibre membrane filter type, under negative pressure state, filtering water sees through organic filter membranous layer and enters inner chamber, as shown in Figure 6, arrow is wherein represented the direction of current, is flowed to be drawn into collector pipe behind the water-collecting tray and to discharge, and activated sludge then is intercepted in the biochemical reaction tank.But among the present invention, tubular membrane element 1 is immersed in the water fully, and the upper end does not have the water outlet termination, can not resemble the problem that produces sludge blockage the hollow-fibre membrane in the suction end of upper end.The below of membrane component can be provided with aeration tube 4, by the bottom aeration, just can keep the routine on film surface and clean.
The top of every membrane component seals with sealing cap, enters sewage when preventing to aspirate, many membrane component component film assemblies, and the membrane component quantity that the membrane module of different model comprises does not wait to 1000 by 100.
Claims (8)
1. tubular membrane element is characterized in that: comprise inner chamber and tubular supporting layer that can be permeable, the outer surface of supporting layer is coated with organic filter membranous layer, and the end of described inner chamber is provided with delivery port.
2. tubular membrane element according to claim 1 is characterized in that: described supporting layer is made of porous organic material.
3. tubular membrane element according to claim 1 is characterized in that: described organic filter membranous layer is made of micro-filtration membrane.
4. tubular membrane element according to claim 1 is characterized in that: described organic filter membranous layer is made of milipore filter.
5. tubular membrane element according to claim 1 is characterized in that: an end of described inner chamber is provided with delivery port, other end sealing.
6. tubular membrane element according to claim 1 is characterized in that: the diameter of described inner chamber is 4-12mm.
7. integral type film biological reactor, comprise reaction tank and the membrane component that is positioned at reaction tank, it is characterized in that: described membrane component comprises inner chamber and tubular supporting layer that can be permeable, the outer surface of supporting layer is coated with organic filter membranous layer, the upper end closed of described inner chamber, the lower end of inner chamber is provided with delivery port, also is provided with water-collecting tray in the reaction tank and is connected with the delivery port of described membrane component.
8. integral type film biological reactor according to claim 7 is characterized in that: the below of described membrane component also is provided with aeration tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100502539A CN101874987A (en) | 2009-04-29 | 2009-04-29 | Pipe type membrane element and submerged membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100502539A CN101874987A (en) | 2009-04-29 | 2009-04-29 | Pipe type membrane element and submerged membrane bioreactor |
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| Publication Number | Publication Date |
|---|---|
| CN101874987A true CN101874987A (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100502539A Pending CN101874987A (en) | 2009-04-29 | 2009-04-29 | Pipe type membrane element and submerged membrane bioreactor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897896A (en) * | 2012-09-29 | 2013-01-30 | 北京碧水源膜科技有限公司 | Tubular membrane bioreactor |
| CN103482759A (en) * | 2013-09-27 | 2014-01-01 | 嘉戎科技(厦门)有限公司 | Novel immersed membrane bioreactor component |
| CN105174425A (en) * | 2015-08-11 | 2015-12-23 | 无锡桥阳机械制造有限公司 | Membrane bioreactor |
| CN108144450A (en) * | 2018-02-07 | 2018-06-12 | 天津碧水源膜材料有限公司 | Dynamic membrane tube, bioreactor and the method for realizing automatic replacement film base material net |
| CN112316735A (en) * | 2020-10-26 | 2021-02-05 | 武汉工程大学 | Microfiltration membrane pipe and backflushing aeration coupling type immersed tube MBR assembly |
-
2009
- 2009-04-29 CN CN2009100502539A patent/CN101874987A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897896A (en) * | 2012-09-29 | 2013-01-30 | 北京碧水源膜科技有限公司 | Tubular membrane bioreactor |
| CN102897896B (en) * | 2012-09-29 | 2014-02-26 | 北京碧水源膜科技有限公司 | Tubular membrane bioreactor |
| CN103482759A (en) * | 2013-09-27 | 2014-01-01 | 嘉戎科技(厦门)有限公司 | Novel immersed membrane bioreactor component |
| CN105174425A (en) * | 2015-08-11 | 2015-12-23 | 无锡桥阳机械制造有限公司 | Membrane bioreactor |
| CN108144450A (en) * | 2018-02-07 | 2018-06-12 | 天津碧水源膜材料有限公司 | Dynamic membrane tube, bioreactor and the method for realizing automatic replacement film base material net |
| CN112316735A (en) * | 2020-10-26 | 2021-02-05 | 武汉工程大学 | Microfiltration membrane pipe and backflushing aeration coupling type immersed tube MBR assembly |
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Application publication date: 20101103 |