CN203007092U - Photocatalysis-postpositioned internal-circulation anaerobic fluidized membrane bioreactor - Google Patents
Photocatalysis-postpositioned internal-circulation anaerobic fluidized membrane bioreactor Download PDFInfo
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- CN203007092U CN203007092U CN 201220738523 CN201220738523U CN203007092U CN 203007092 U CN203007092 U CN 203007092U CN 201220738523 CN201220738523 CN 201220738523 CN 201220738523 U CN201220738523 U CN 201220738523U CN 203007092 U CN203007092 U CN 203007092U
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Abstract
The utility model relates to a photocatalysis-postpositioned internal-circulation anaerobic fluidized membrane bioreactor. The membrane bioreactor comprises a reaction tube, an air stripping tube, a three-phase separator and a membrane component, wherein a water inlet pipe and a water outlet pipe are arranged at the bottom of the reaction tube; and the membrane component is of a cylindrical ceramic membrane loaded with titanium dioxide nanoparticles or a hollow fiber ultrafiltration membrane, of which the surface is provided with a titanium-dioxide lightweight particle mesh in a hanging manner. According to the photocatalysis-postpositioned internal-circulation anaerobic fluidized membrane bioreactor, an internal-circulation anaerobic treatment technology and a titanium dioxide photocatalytic technology are combined, and the advantages of an anaerobic membrane bioreactor and a photocatalytic reactor are combined, so that the quality of outlet water is obviously improved; and the membrane component is arranged at a supernatant portion of a three-phase separation zone and is not in direct contact with sludge, and nano titanium dioxide plays a photocatalysis role, so that the membrane pollution is greatly reduced, the service life of the membrane component is prolonged, and the human and material resources required for membrane replacement cycles are reduced.
Description
Technical field
The utility model relates to a kind of internal circulating anaerobic fluidization membrane bio-reactor of photochemical catalysis postposition, belongs to the technical field of wastewater treatment and reuse.
Background technology
Sewage and waste water is processed the biological processes that adopt more at present, and wherein, the anaerobe technology has a extensive future because of its characteristics with production capacity.Anaerobic membrane bioreactor is the combination of anaerobe technology and membrane separation technique, anaerobism floc sludge or granule sludge can be removed the organic pollutant of bio-degradable in sewage and waste water effectively, the membrane sepn effect can realize efficient solid-liquid separation, and further improves effluent quality.But anaerobic membrane bioreactor is to bio-refractory and the organic pollutant of bio-degradable (as azo-compound, polychlorobiphenyl etc.) effect is very not little.Therefore, simple anaerobic membrane biosystem method has certain limitation in the treatment and reuse field of used water difficult to degradate.
Existing the dispose of sewage technology of waste water of internal circulating anaerobic membrane-biotechnology that adopts: Chinese patent CN102502957 discloses the internal circulation anaerobic film bioreactor in a kind of single reaction district, this device is the improvement to the internal-circulation anaerobic reactor in existing single reaction district, by reactor body, water inlet pipe, rising pipe, fall stream pipe, upspout, sludge out pipe and biogas pipe and form, establish dividing plate in the reaction zone main body, the reaction zone main body is divided into up and down two portions, and the bottom is reaction zone; Top is divided into by set second partition and falls stream district and membrane module district.The prominent feature of this device is: introduced membrane separation technique on the basis of the internal-circulation anaerobic reactor in existing single reaction district, realized solid-liquid separation.The advantage of this device is: due to the setting of membrane module, the volume in membrane module district makes the cubic capacity of reactor reduce less than original settling region; Realize that by membrane module solid-liquid separation has replaced original three phase separation precipitate and separate, effectively overcome the problem that the internal-circulation anaerobic reactor in existing single reaction district runs mud, can obtain higher sludge concentration in this reactor, improve the sewage and waste water processing efficiency.But the structure of reactor that this patent provides is complicated, and design, manufacturing and operative technique require high; Internal recycle is by upspout and fall the stream duct ligation and close realization, because caliber is thinner, easily blocks, and obstruction circulates; And this patent is not done further processing with regard to difficult degradation and nondegradable waste water yet.
The dispose of sewage technology of waste water of existing employing photocatalytic method: Chinese patent CN201762164U discloses a kind of suspension activated carbon photocatalysed ozone water processing unit and has belonged to tripping device, is comprised of light-catalyzed reaction cylinder, ultraviolet source and separator.Light-catalyzed reaction cylinder lower end cover is provided with water-in and inlet mouth, is provided with the gas nose cone in the inboard of lower capping, establishes sparger on its mouth of pipe, and guide shell is installed on gas nose cone top with one heart, and guide shell is outside to be to link the light-catalyzed reaction cylinder with separator.Silica tube passes from the separator top, directly gos deep in guide shell, and scolds the light lamp tube retaining plate to fix by purple.The ultraviolet tube peace turns in silica tube, and wire stretches out the outside.The utility model suspension activated carbon photocatalysed ozone water processing unit, make granulated active carbon be in the suspended motion state by gas stripping, realize that in a device solid catalyst and ultraviolet cooperating catalysis ozone generate hydroxyl radical free radical (OH), reactor efficiency is high; The liquid circulation that upwelling and down-welling district density difference forms, strengthened the effect of mass transmitting between ozonize gas and liquid, fall simultaneously the liquid that flows the district and become the effect of carrying secretly of ozonize gas to dirty sports, increased ozonize gas residence time in reactor, greatly improved the utilization ratio of ozone.This patent utilization O3 catalytic oxidation principle is processed described sewage and waste water, and it is higher that it processes raw materials cost, and certain toxicity is arranged; Solid catalyst and ultraviolet cooperating O3 catalytic oxidation easily realize organic inorganicization of the bio-refractories such as aromatic hydrocarbons, azo, but for the easy mineralization of organic material DeGrain of biochemical degradation such as saturated chain hydro carbons, can not realize easily processing when biochemical degradation and bio-refractory organic pollutant in sewage and waste water.
The utility model content
For the deficiencies in the prior art, the utility model provides a kind of internal circulating anaerobic fluidization membrane bio-reactor of photochemical catalysis postposition.
Explanation of technical terms:
Ceramic membrane: being a kind of of solid film, is mainly Al
2O
3, ZrO
2, TiO
2And SiO
2Etc. the porous-film of inorganic materials preparation, its aperture is 2-50nm.Have chemical stability good, acidproof, alkaline-resisting, the organic solvent-resistant of energy, physical strength is large, but counterflush, anti-microbe ability is strong, and is high temperature resistant, and pore size distribution is narrow, the separation efficiency high.
The mechanism of optically catalytic TiO 2: TiO
2Belong to a kind of N-shaped semiconductor material, its energy gap is the 3.2ev(anatase octahedrite), when it was subject to light (UV-light) irradiation that wavelength is less than or equal to 387.5nm, the electronics of valence band will obtain the energy of photon and more front to conduction band, forms light induced electron (e
-); Correspondingly form photohole (h in valence band
+).If each TiO that is dispersed in solution
2The approximate photoelectrochemical cell of regarding small-sized short circuit as of particle, light induced electron and the hole of photovoltaic effect generation move to respectively TiO under the effect of electric field
2The position that the surface is different.TiO
2The light induced electron e on surface
-Easily caught by oxidizing substances such as oxygen in water, and hole h
+The oxidable TiO that is adsorbed in
2The organism on surface or first being adsorbed on TiO
2The OH on surface
-And H
2The O molecular oxygen changes into the OH free radical, and the oxidation capacity of OH free radical is the strongest in the oxygenant that exists in water body, and in the energy oxidizing water, organism and the inorganic pollutant of the overwhelming majority, be inorganic molecules, CO with its mineralising
2And H
2The innoxious substances such as O.
The basic chemical reaction process of optically catalytic TiO 2 is as follows:
TiO
2+hν→TiO
2+h
++e
- (1)
h
++e
-→heat or h ν (2)
h
++OH
-→·OH (3)
h
++H
2O→·OH+H
+ (4)
The OH+ organism → → CO
2+ H
2O (5)
TiO
2Photocatalysis to degrade organic matter is in fact a kind of free radical reaction.
The technical solution of the utility model is as follows:
A kind of internal circulating anaerobic fluidization membrane bio-reactor of photochemical catalysis postposition comprises reaction tube, air lift cylinder, triphase separator and membrane module, is provided with water inlet pipe and inlet pipe in the bottom of described reaction tube; At the inner shaft of reaction tube to being provided with biogas aeration plate, air lift cylinder and triphase separator from bottom to top; Be covered with triphase separator above described air lift cylinder, described triphase separator comprises guide shell and the umbrella pod that arranges from top to bottom, be provided with the water conservancy diversion edge of inside turnover at the outward flange of umbrella pod, the upper end of described guide shell is connected with outside escape pipe by the top cover of described reaction tube, and is connected with described biogas aeration plate by air pump; Be provided with membrane module in described reaction tube and on the position corresponding with described guide shell level, described membrane module is connected with the rising pipe of outside by the reaction tube sidewall; It is characterized in that, described membrane module is the cylinder-shaped ceramic film that load has titanium dioxide nanoparticle, or described membrane module is the hollow fiber ultrafiltration membrane that appearance is linked with titanium dioxide light granules net;
A sheathed hollow out support, be provided with ultraviolet source on described hollow out support outside described membrane module;
The titanium dioxide light granules net that hangs on the surface of described hollow fiber ultrafiltration membrane comprises the netting twine that longitude and latitude is arranged, and is linked with the titanium dioxide light granules on described netting twine.The utility model with described membrane module, titanium dioxide granule and ultraviolet source integrated setting at the top of described reactor clear water zone, directly do not contact with anaerobic sludge, described light-catalyzed reaction program is rearmounted, when sewage is discharged, by photochemical catalysis, the hard-degraded substance of remnants in sewage is carried out photocatalytic degradation, not only greatly reduce film and pollute but also can efficiently remove the material of difficult degradation in sewage.
Preferred according to the utility model, the diameter range of described titanium dioxide light granules: 2-4mm.
Preferred according to the utility model, described netting twine is the outside surface that net bag-shaped is set in described hollow fiber ultrafiltration membrane.
Preferred according to the utility model, the specified aperture of described hollow fiber ultrafiltration membrane is 0.01 micron.
Preferred according to the utility model, when described membrane module is load when the cylinder-shaped ceramic film of titanium dioxide nanoparticle is arranged, the weight of described titanium dioxide nanoparticle is according to the cumulative volume load of disposing of sewage: 1 liter of sewage load 3-5g titanium dioxide nanoparticle of every processing; When described membrane module is appearance when being linked with the hollow fiber ultrafiltration membrane of titanium dioxide light granules net, the cumulative volume of described titanium dioxide light granules is the 1/5-1/4 of hollow fiber ultrafiltration membrane cumulative volume.The advantage of design is herein, and when guaranteeing to dispose of sewage, it is optimum that its photocatalysis effect reaches.
Preferred according to the utility model, the specified aperture of described cylinder-shaped ceramic film is the 2-50 nanometer.
Preferred according to the utility model, the quantity of described ultraviolet source is four, is separately positioned on described hollow out support, and the power of described single ultraviolet source is 20-60W.
Preferred according to the utility model, described reaction tube comprises from top to bottom the tubular disengaging zone that arranges and tubular lifting district, the internal diameter of described tubular disengaging zone is greater than the internal diameter in described tubular lifting district, is provided with inclination sedimentation edge between described tubular disengaging zone and tubular lifting district.The internal diameter in described tubular lifting district is less than the purpose of the internal diameter of tubular disengaging zone, described current rise to the tubular disengaging zone along the air lift cylinder of less internal diameter, its internal diameter increases and makes that flow rate of water flow is slow to fall, be that throw out in described waste water current is settled down to the bottom of reaction tube along tubular lifting district, accelerate effect of settling.
Preferred according to the utility model, the level attitude on described inclination sedimentation edge is lower than the level attitude on described water conservancy diversion edge.
Preferred according to the utility model, the volumetric loading of the internal circulating anaerobic fluidization membrane bio-reactor of described photochemical catalysis postposition is 6-20g (COD)/Ld.
The utility model has the advantage of:
The utility model is combined described optically catalytic TiO 2 technology with membrane Bio-reactor Technology, labile organic compound in waste water is first through the anaerobe effect, be converted into biogas, hardly degraded organic substance and microbial metabolites are removed through follow-up optically catalytic TiO 2 effect.Not biodegradable material in can also processing waste water smoothly by continuous backflow catalysis in the biodegradable material of the utility model in effectively removing waste water.Utilize reactor described in the utility model that waste water is processed: wherein the clearance of biodegradable material is more than 90%, the transformation efficiency of described not biodegradable material is 90-95%, clearance is more than 90%, waste water after treatment can be directly as in the water reuse.The utility model multiple sewage disposal technology that has been coupled has been realized the efficient processing of used water difficult to degradate, has reached the purpose of waste water recycling, is a kind of efficient, practical sewage and waste water treatment and reuse technique.
The utility model combines improved internal circulating anaerobic fluidization membrane bio-reactor with the optically catalytic TiO 2 technology, both overcome the problem that existing internal circulation anaerobic film bioreactor easily blocks, also simplified structure of reactor, and realized simultaneously the processing of easy biochemical degradation and bio-refractory organic pollutant, the introducing of optically catalytic TiO 2 has also reduced the cost of catalyzed oxidation, has reduced reaction toxicity.
Description of drawings
Fig. 1 is the structural representation of reactor described in the utility model;
Fig. 2 is the structural representation of membrane module described in the utility model embodiment 1;
Fig. 3 is the structural representation of membrane module described in the utility model embodiment 2;
In Fig. 1: 1. reaction tube; 1-1. tubular disengaging zone; 1-2. tubular lifting district; 1-3. inclination sedimentation; 2. triphase separator; 2-1. guide shell; 2-2. umbrella pod; 2-3. water conservancy diversion edge; 3. air lift cylinder; 4. water inlet pipe; 5. membrane module; 6. rising pipe; 7. constant flow pump; 8. escape pipe; 9. biogas bubble, 10. titanium dioxide light granules; 11. ultraviolet source; 12. biogas aeration plate; 13. gas meter; 14. inlet pipe; 15, fill out mud material mouth; 16, blowdown pug mouth.
In Fig. 2, Fig. 3,5-1, ceramic membrane; 5-2, hollow out support; 5-3, hollow fiber ultrafiltration membrane; 5-4, titanium dioxide light granules net; The netting twine that 5-5, longitude and latitude are arranged.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further, but is not limited to this.The volumetric loading of the internal circulating anaerobic fluidization membrane bio-reactor of the postposition of photochemical catalysis described in following examples is 6-20g (COD)/Ld.
Embodiment 1,
As shown in Fig. 1-2.
A kind of internal circulating anaerobic fluidization membrane bio-reactor of photochemical catalysis postposition comprises reaction tube 1, air lift cylinder 3, triphase separator 2 and membrane module 5, is provided with water inlet pipe 4 and inlet pipe 14 in the bottom of described reaction tube 1; At the inner shaft of reaction tube 1 to being provided with biogas aeration plate 12, air lift cylinder 3 and triphase separator 2 from bottom to top; Be covered with triphase separator 2 above described air lift cylinder 3, described triphase separator 2 comprises guide shell 2-1 and the umbrella pod 2-2 that arranges from top to bottom, outward flange at umbrella pod 2-2 is provided with the water conservancy diversion of inside turnover along 2-3, the upper end of described guide shell 2-1 is connected with outside escape pipe 8 by the top cover of described reaction tube 1, and is connected with described biogas aeration plate 12 by air pump; Be provided with membrane module 5 in described reaction tube 1 and on the position corresponding with described guide shell 2-1 level, described membrane module 5 is connected with the rising pipe 6 of outside by reaction tube 1 sidewall; Described membrane module 5 has the cylinder-shaped ceramic film 5-1 of titanium dioxide nanoparticle for load; At the outer sheathed hollow out support 5-2 of described membrane module 5, be provided with ultraviolet source 11 on described hollow out support 5-2; The weight of described titanium dioxide nanoparticle is according to the cumulative volume load of disposing of sewage: 1 liter of sewage load 3-5g titanium dioxide nanoparticle of every processing; The specified aperture of described cylinder-shaped ceramic film 5-1 is the 2-50 nanometer.The quantity of described ultraviolet source 11 is four, is separately positioned on described hollow out support 5-2, and the power of described single ultraviolet source 11 is 20-60W.
Described reaction tube 1 comprises tubular disengaging zone 1-1 and the tubular lifting district 1-2 that from top to bottom arranges, the internal diameter of described tubular disengaging zone 1-1 is provided with the inclination sedimentation along 1-3 greater than the internal diameter of described tubular lifting district 1-2 between described tubular disengaging zone 1-1 and tubular lifting district 1-2.Described inclination sedimentation along the level attitude of 1-3 lower than the level attitude of described water conservancy diversion along 2-3.
Wherein, the preparation method of described load nano-titanium dioxide particulate ceramic film comprises that step is as follows:
A. under vigorous stirring, the butyl (tetra) titanate that is 25-50mL with volume is added drop-wise in the dehydrated alcohol that volume is 80-100mL, stirs through 10-30min, obtains the homogeneous transparent solution A;
B. the 1.0%-2.5% citric acid solution with massfraction concentration slowly adds in solution A, and vigorous stirring 30-60min gets solution B;
C. be that the 0.2%-1.0% liquor alumini chloridi slowly is added drop-wise in solution B with deionized water and massfraction concentration, vigorous stirring 40-60min makes and mixes aluminium nano TiO 2 colloidal solution;
D. according to prior art, with α-Al
2O
3Be aggregate, add pore former, binding agent sinters carrier into after extrusion molding;
E. take out after immersing described carrier in the colloidal solution of mixing aluminium, then being placed in relative humidity is 65%, and temperature is under the condition of 18～25 ℃ dry 12-20 hour;
F. the carrier after step e processes was placed in resistance furnace 2 hours, closes electric furnace, described carrier is made the ceramic membrane of load nano-titanium dioxide particle with the stove naturally cooling; Wherein furnace temperature is 400-600 ℃.
A kind of method of work of utilizing as reactor for treatment sewage as described in embodiment 1 or embodiment 2 comprises that step is as follows:
(1) 1 add anaerobic activated sludge by filling out mud material mouth 15 in the reaction tube, add anaerobic sludge volume account for 1/6-1/5 of whole reaction tube 1 volume; At the outer sheathed hollow out support 5-2 of membrane module 5, open the ultraviolet source 11 on the hollow out support;
(2) open water-in 4, to the interior injection sewage of reaction tube 1; Open biogas aeration plate 12, to the interior injection biogas of reaction tube 1;
(3) sewage rises to triphase separator 2 along air lift cylinder 3: biogas is discharged along triphase separator 2, escape pipe 8; Throw out in sewage is along the space sedimentation of ring air lift cylinder 3, and with described active sludge generation anaerobe reaction;
(5) clear liquid in sewage partly is detained on the top of reaction tube 1, and the sewage clear liquid filters by membrane module 5 and under titanium dioxide, light-catalysed effect, discharges along rising pipe 6 at last;
(6) continue to be back to the bottom of air lift cylinder 3, repeating step (3) along the dirty sewage in space of ring air lift cylinder 3.
As shown in Fig. 1,3.
The internal circulating anaerobic fluidization membrane bio-reactor of photochemical catalysis postposition as described in Example 1, its difference be, described membrane module 5 is linked with the hollow fiber ultrafiltration membrane 5-3 of titanium dioxide light granules net 5-4 for appearance; Described titanium dioxide light granules net 5-4 comprises the netting twine 5-5 that longitude and latitude is arranged, and is linked with titanium dioxide light granules 10 on described netting twine 5-5.The diameter range of described titanium dioxide light granules 5-4: 2-4mm.
Described netting twine 5-5 is the outside surface that net bag-shaped is set in described hollow fiber ultrafiltration membrane 5-3.The specified aperture of described hollow fiber ultrafiltration membrane 5-3 is 0.01 micron.The cumulative volume of described titanium dioxide light granules is 1/5 of hollow fiber ultrafiltration membrane cumulative volume.
Wherein, the preparation method of described titanium dioxide light granules comprises that step is as follows:
(1) during use magnetic force thermostatic mixer adds dehydrated alcohol successively with analytically pure butyl (tetra) titanate, analytically pure glacial acetic acid under 25 ℃, stir 15 ~ 20min, obtain the yellow solution of homogeneous transparent; The volume parts of described butyl (tetra) titanate, glacial acetic acid and dehydrated alcohol is respectively:
Butyl (tetra) titanate: 5 parts;
Glacial acetic acid: 1 part;
Dehydrated alcohol: 15 parts;
(2) continue to stir, add the salpeter solution of the yellow solution volume percent 1-2% that obtains in step (1), the concentration of described salpeter solution is 65-68wt%; Add the ethanolic soln that accounts for the yellow solution volume percent 25-27% that obtains in step (1), the concentration of described ethanolic soln is 90-95wt%, continues to stir 1-1.5h, obtains TiO 2 sol;
(3) gac is immersed in the TiO 2 sol of step (2) preparation, fully dipping, dry 2-3h after then lifting out under 105 ℃ in baking oven, is plated film once; Repeating step is (3) 2 times again, is plated film three times;
(4) activated carbon granule with plated film three times is placed in quartz tube furnace; pass into nitrogen as protection gas; calcining at constant temperature 4-5h under 500-600 ℃ of condition; make the titanium dioxide firm attachment on gac; namely get the titanium dioxide light granules, the tap density of described titanium dioxide light granules is that 0.3-0.5kg/L, specific surface are 1500-2000m
2/ g, particle size range 2-4mm, water-intake rate are 300-450%.
Claims (9)
1. the internal circulating anaerobic fluidization membrane bio-reactor of a photochemical catalysis postposition, comprise reaction tube, air lift cylinder, triphase separator and membrane module, is provided with water inlet pipe and inlet pipe in the bottom of described reaction tube; At the inner shaft of reaction tube to being provided with biogas aeration plate, air lift cylinder and triphase separator from bottom to top; Be covered with triphase separator above described air lift cylinder, described triphase separator comprises guide shell and the umbrella pod that arranges from top to bottom, be provided with the water conservancy diversion edge of inside turnover at the outward flange of umbrella pod, the upper end of described guide shell is connected with outside escape pipe by the top cover of described reaction tube, and is connected with described biogas aeration plate by air pump; Be provided with membrane module in described reaction tube and on the position corresponding with described guide shell level, described membrane module is connected with the rising pipe of outside by the reaction tube sidewall; It is characterized in that, described membrane module is the cylinder-shaped ceramic film that load has titanium dioxide nanoparticle, or described membrane module is the hollow fiber ultrafiltration membrane that appearance is linked with titanium dioxide light granules net; A sheathed hollow out support, be provided with ultraviolet source on described hollow out support outside described membrane module; The titanium dioxide light granules net that hangs on the surface of described hollow fiber ultrafiltration membrane comprises the netting twine that longitude and latitude is arranged, and is linked with the titanium dioxide light granules on described netting twine.
2. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 1, is characterized in that the diameter range of described titanium dioxide light granules: 2-4mm.
3. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 1, is characterized in that, described netting twine is the outside surface that net bag-shaped is set in described hollow fiber ultrafiltration membrane.
4. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 1, is characterized in that, the specified aperture of described hollow fiber ultrafiltration membrane is 0.01 micron; The specified aperture of described cylinder-shaped ceramic film is the 2-50 nanometer.
5. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 1, it is characterized in that, when described membrane module is load when the cylinder-shaped ceramic film of titanium dioxide nanoparticle is arranged, the weight of described titanium dioxide nanoparticle is according to the cumulative volume load of disposing of sewage: 1 liter of sewage load 3-5g titanium dioxide nanoparticle of every processing; When described membrane module is appearance when being linked with the hollow fiber ultrafiltration membrane of titanium dioxide light granules net, the cumulative volume of described titanium dioxide light granules is the 1/5-1/4 of hollow fiber ultrafiltration membrane cumulative volume.
6. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 1, it is characterized in that, the quantity of described ultraviolet source is four, is separately positioned on described hollow out support, and the power of described single ultraviolet source is 20-60W.
7. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 1, it is characterized in that, described reaction tube comprises from top to bottom the tubular disengaging zone that arranges and tubular lifting district, the internal diameter of described tubular disengaging zone is greater than the internal diameter in described tubular lifting district, is provided with inclination sedimentation edge between described tubular disengaging zone and tubular lifting district.
8. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 7, is characterized in that, the level attitude on described inclination sedimentation edge is lower than the level attitude on described water conservancy diversion edge.
9. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 1, is characterized in that, the volumetric loading of the internal circulating anaerobic fluidization membrane bio-reactor of described photochemical catalysis postposition is 6-20g (COD)/Ld.
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|---|---|---|---|
| CN 201220738523 CN203007092U (en) | 2012-12-28 | 2012-12-28 | Photocatalysis-postpositioned internal-circulation anaerobic fluidized membrane bioreactor |
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073150A (en) * | 2012-12-28 | 2013-05-01 | 山东大学 | Photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor and working method thereof |
| CN109704459A (en) * | 2018-12-10 | 2019-05-03 | 智造起源科技有限公司 | A kind of anaerobic membrane bioreactor |
-
2012
- 2012-12-28 CN CN 201220738523 patent/CN203007092U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073150A (en) * | 2012-12-28 | 2013-05-01 | 山东大学 | Photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor and working method thereof |
| CN103073150B (en) * | 2012-12-28 | 2014-06-11 | 山东大学 | Photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor and working method thereof |
| CN109704459A (en) * | 2018-12-10 | 2019-05-03 | 智造起源科技有限公司 | A kind of anaerobic membrane bioreactor |
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|---|---|---|---|
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20140611 |
|
| RGAV | Abandon patent right to avoid regrant |