CN103073150A - Photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor and working method thereof - Google Patents
Photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor and working method thereof Download PDFInfo
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Abstract
The invention relates to a photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor. The photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor comprises a reaction barrel, a gas stripping barrel, a three-phase separator and a membrane assembly, wherein a water inlet pipe and a gas inlet pipe are arranged at the bottom of the reaction barrel; and the membrane assembly is a cylindrical ceramic membrane loaded with nano-titanium dioxide particles, or the membrane assembly is a hollow fiber ultrafiltration membrane of which a light titanium dioxide particle mesh is hung on the outer surface. The invention further discloses a working method of the photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor. An internal-circulation anaerobic treatment technology and a titanium dioxide photocatalytic technology are combined, and advantages of an anaerobic membrane bioreactor and a photocatalytic bioreactor are combined, so that quality of outlet water is obviously improved; and the membrane assembly is arranged at a supernatant part of a three-phase separation zone and doses not directly contact sludge, and nano-titanium dioxide has a photocatalytic effect, so that membrane pollution is greatly reduced, the service life of the membrane assembly is prolonged, and manpower and material resources required in a membrane replacing cycle are reduced.
Description
Technical field
The present invention relates to a kind of internal circulating anaerobic fluidization membrane bio-reactor and method of work thereof of photochemical catalysis postposition, belong 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 the 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 (such 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 falling by set second partition flows district and membrane module district.The prominent feature of this device is: membrane separation technique has been introduced on the basis at the internal-circulation anaerobic reactor that has the single reaction district now, realizes solid-liquid separation.The advantage of this device is: because the setting of membrane module, the volume in membrane module district is less than original settling region, so that the cubic capacity of reactor reduces; Realize that by membrane module solid-liquid separation has replaced original three phase separation precipitate and separate, effectively overcome the problem of the internal-circulation anaerobic reactor race mud in existing single reaction district, in this reactor, can obtain higher sludge concentration, 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, blocks easily, 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 for the light-catalyzed reaction cylinder, links with separator.Silica tube passes from the separator top, directly gos deep in the 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.Suspension activated carbon photocatalysed ozone water processing unit of the present invention makes granulated active carbon be in the suspended motion state by gas stripping, realizes that in a device solid catalyst and ultraviolet cooperating catalysis ozone generate hydroxyl radical free radical (OH), and 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, the liquid that falls simultaneously stream district becomes the effect of carrying secretly of ozonize gas to dirty sports, has increased ozonize gas residence time in reactor, has 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 realize organic inorganicization of the bio-refractories such as aromatic hydrocarbons, azo easily, 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 the sewage and waste water.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of internal circulating anaerobic fluidization membrane bio-reactor of photochemical catalysis postposition.
The present invention also discloses a kind of method of work of utilizing above-mentioned reactor for treatment sewage.
Explanation of technical terms:
Ceramic membrane: being a kind of of solid film, mainly is Al
2O
3, Zr0
2, Ti0
2And Si0
2Etc. the porous-film of inorganic materials preparation, its aperture is 2-50nm.It is good to have chemical stability, acidproof, alkaline-resisting, the organic solvent-resistant of energy, and 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
-); Then correspondingly form photohole (h in the valence band
+).If each TiO that is dispersed in the solution
2The approximate photoelectrochemical cell of regarding small-sized short circuit as of particle, then TiO is moved to respectively in light induced electron and the hole of photovoltaic effect generation 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 then
2The organism on surface or elder generation are 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 the water body, and organism and the inorganic pollutant of the overwhelming majority are inorganic molecules, CO with its mineralising in the energy oxidizing water
2And H
2The innoxious substances such as O.
The basic chemical reaction process of optically catalytic TiO 2 is as follows:
TiO
2+h ν→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.
Technical scheme of the present invention 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; Above described air lift cylinder, be covered with triphase separator, 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; In described reaction tube and the position corresponding with described guide shell level be provided with membrane module, described membrane module links to each other 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 is provided with ultraviolet source at 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 at described netting twine.The present invention 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 treating that sewage is discharged, by photochemical catalysis the hard-degraded substance of remnants in the sewage is carried out photocatalytic degradation, not only greatly reduce film and pollute but also can efficiently remove the material of difficult degradation in the sewage.
Preferred according to the present invention, the diameter range of described titanium dioxide light granules: 2-4mm.
Preferred according to the present invention, described netting twine is the outside surface that net bag-shaped is set in described hollow fiber ultrafiltration membrane.
Preferred according to the present invention, the specified aperture of described hollow fiber ultrafiltration membrane is 0.01 micron.
Preferred according to the present invention, 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 of every processing 3-5g titanium dioxide nanoparticle; 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 present invention, the specified aperture of described cylinder-shaped ceramic film is the 2-50 nanometer.
Preferred according to the present invention, the quantity of described ultraviolet source is four, is separately positioned on the described hollow out support, and the power of described single ultraviolet source is 20-60W.
Preferred according to the present invention, described reaction tube comprises tubular disengaging zone and the tubular lifting district that from top to bottom arranges, the internal diameter of described tubular disengaging zone is provided with inclination sedimentation edge greater than the internal diameter in described tubular lifting district between described tubular disengaging zone and the 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 so that flow rate of water flow is slow falls, be throw out in the described waste water current is settled down to reaction tube along tubular lifting district bottom, accelerate effect of settling.
Preferred according to the present invention, the level attitude on described inclination sedimentation edge is lower than the level attitude on described water conservancy diversion edge.
Preferred according to the present invention, the volumetric loading of the internal circulating anaerobic fluidization membrane bio-reactor of described photochemical catalysis postposition is 6-20g (COD)/Ld.
A kind of method of work of utilizing above-mentioned reactor for treatment sewage comprises that step is as follows:
(1) in reaction tube, add anaerobic activated sludge by filling out mud material mouth, add anaerobic sludge volume account for 1/6-1/5 of whole reaction tube volume; Sheathed hollow out support outside membrane module is opened the ultraviolet source on the hollow out support;
(2) open water-in, in reaction tube, inject sewage; Open the biogas aeration plate, in reaction tube, inject biogas;
(3) sewage rises to triphase separator along the air lift cylinder: biogas is discharged along triphase separator, escape pipe; Throw out in the sewage is along the space sedimentation of ring air lift cylinder, and with described active sludge generation anaerobe reaction;
(5) clear liquid in the sewage partly is detained on the top of reaction tube, and the sewage clear liquid filters by membrane module and under titanium dioxide, light-catalysed effect, discharges along rising pipe at last;
(6) the dirty sewage in space of edge ring air lift cylinder continues to be back to the bottom of air lift cylinder, repeating step (3).
The invention has the advantages that:
The present invention is combined described optically catalytic TiO 2 technology with membrane Bio-reactor Technology, labile organic compound in the 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.The present invention can also process not biodegradable material in the waste water smoothly by continuous backflow catalysis in the biodegradable material of effectively removing in the waste water.Utilize reactor of the present invention 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 present invention's 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 present invention 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 of the present invention;
Fig. 2 is the structural representation of membrane module described in the embodiment of the invention 1;
Fig. 3 is the structural representation of membrane module described in the embodiment of the invention 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
The present invention will be further described below in conjunction with drawings and Examples, but be 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,
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; Above described air lift cylinder 3, be covered with triphase separator 2, 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; In described reaction tube 1 and the position corresponding with described guide shell 2-1 level be provided with membrane module 5, described membrane module 5 links to each other 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 described membrane module 5 outer sheathed hollow out support 5-2, be provided with ultraviolet source 11 at 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 of every processing 3-5g titanium dioxide nanoparticle; 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 the 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 the tubular lifting district 1-2.Described inclination sedimentation is lower than described water conservancy diversion along the level attitude of 2-3 along the level attitude of 1-3.
Wherein, the preparation method of described load nano-titanium dioxide particulate ceramic film comprises that step is as follows:
A. under vigorous stirring, be that the butyl (tetra) titanate of 25-50mL is added drop-wise in the dehydrated alcohol that volume is 80-100mL with volume, stir through 10-30min, obtain the homogeneous transparent solution A;
B. the 1.0%-2.5% citric acid solution with massfraction concentration slowly adds in the 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 the 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 the extrusion molding;
E. take out after immersing described carrier in the colloidal solution of mixing aluminium, then placing relative humidity is 65%, and temperature is under 18～25 ℃ the condition dry 12-20 hour;
F. the carrier after step e processes was placed resistance furnace 2 hours, close 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 ℃.
Embodiment 2,
Shown in Fig. 1,3.
The internal circulating anaerobic fluidization membrane bio-reactor of as described in Example 1 photochemical catalysis postposition, its difference are that 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 at 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) uses the magnetic force thermostatic mixer under 25 ℃, analytically pure butyl (tetra) titanate, analytically pure glacial acetic acid to be added in the dehydrated alcohol successively, 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 the 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 the 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, abundant dipping, after then lifting out in baking oven in 105 ℃ of lower oven dry 2-3h, be plated film once; Repeating step is (3) 2 times again, is plated film three times;
(4) activated carbon granule with plated film three times places 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%.
Embodiment 3,
A kind of method of work of utilizing such as reactor for treatment sewage as described in embodiment 1 or the 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 membrane module 5 outer sheathed hollow out support 5-2, open the ultraviolet source 11 on the hollow out support;
(2) open water-in 4, to reaction tube 1 interior injection sewage; Open biogas aeration plate 12, to reaction tube 1 interior injection biogas;
(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 the sewage is along the space sedimentation of ring air lift cylinder 3, and with described active sludge generation anaerobe reaction;
(4) clear liquid in the 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;
(5) the dirty sewage in space of edge ring air lift cylinder 3 continues to be back to the bottom of air lift cylinder 3, repeating step (3).
Claims (10)
1. the internal circulating anaerobic fluidization membrane bio-reactor of a 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; Above described air lift cylinder, be covered with triphase separator, 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; In described reaction tube and the position corresponding with described guide shell level be provided with membrane module, described membrane module links to each other 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 is provided with ultraviolet source at 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 at 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 of every processing 3-5g titanium dioxide nanoparticle; 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 the 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 tubular disengaging zone and the tubular lifting district that from top to bottom arranges, the internal diameter of described tubular disengaging zone is provided with inclination sedimentation edge greater than the internal diameter in described tubular lifting district between described tubular disengaging zone and the tubular lifting district.
8. the internal circulating anaerobic fluidization membrane bio-reactor of a kind of photochemical catalysis postposition according to claim 1 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.
10. one kind is utilized the as claimed in claim 1 method of work of reactor for treatment sewage, it is characterized in that it is as follows that the method comprising the steps of:
(1) in reaction tube, add anaerobic activated sludge by filling out mud material mouth, add anaerobic sludge volume account for 1/6-1/5 of whole reaction tube volume; Sheathed hollow out support outside membrane module is opened the ultraviolet source on the hollow out support;
(2) open water-in, in reaction tube, inject sewage; Open the biogas aeration plate, in reaction tube, inject biogas;
(3) sewage rises to triphase separator along the air lift cylinder: biogas is discharged along triphase separator, escape pipe; Throw out in the sewage is along the space sedimentation of ring air lift cylinder, and with described active sludge generation anaerobe reaction;
(4) clear liquid in the sewage partly is detained on the top of reaction tube, and the sewage clear liquid filters by membrane module and under titanium dioxide, light-catalysed effect, discharges along rising pipe at last;
(5) the dirty sewage in space of edge ring air lift cylinder continues to be back to the bottom of air lift cylinder, repeating step (3).
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| CN104556369A (en) * | 2015-01-05 | 2015-04-29 | 清华大学 | Sewage treatment system |
| CN106044934A (en) * | 2016-07-04 | 2016-10-26 | 柳州若思纳米材料科技有限公司 | Method and device for degrading high-ammonia-nitrogen wastewater by using titanium dioxide photocatalyst |
| CN106915861A (en) * | 2015-12-24 | 2017-07-04 | 中国科学院过程工程研究所 | A kind of coal chemical industrial waste water biological treatment system and its processing method based on sludge ozone catalysis oxidation |
| CN106966556A (en) * | 2017-05-24 | 2017-07-21 | 广西碧清源环保科技有限公司 | The technique that a kind of film process UC-51762 produces waste water |
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| CN103922468B (en) * | 2014-03-17 | 2015-06-10 | 大连民族学院 | Low-energy consumption aeration-free domestic sewage recycling apparatus |
| CN103922468A (en) * | 2014-03-17 | 2014-07-16 | 大连民族学院 | Low-energy consumption aeration-free domestic sewage recycling apparatus |
| CN104445838A (en) * | 2014-12-26 | 2015-03-25 | 北京伊普国际水务有限公司 | Sewage treatment system for small towns |
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| CN106915861A (en) * | 2015-12-24 | 2017-07-04 | 中国科学院过程工程研究所 | A kind of coal chemical industrial waste water biological treatment system and its processing method based on sludge ozone catalysis oxidation |
| CN106915861B (en) * | 2015-12-24 | 2021-03-30 | 中国科学院过程工程研究所 | Coal chemical industry wastewater biological treatment system based on sludge ozone catalytic oxidation and treatment method thereof |
| CN106044934B (en) * | 2016-07-04 | 2019-01-22 | 柳州若思纳米材料科技有限公司 | The method and apparatus of photocatalyst of titanium dioxide degradation high ammonia-nitrogen wastewater |
| CN106044934A (en) * | 2016-07-04 | 2016-10-26 | 柳州若思纳米材料科技有限公司 | Method and device for degrading high-ammonia-nitrogen wastewater by using titanium dioxide photocatalyst |
| CN106966556A (en) * | 2017-05-24 | 2017-07-21 | 广西碧清源环保科技有限公司 | The technique that a kind of film process UC-51762 produces waste water |
| CN108928918A (en) * | 2018-08-27 | 2018-12-04 | 中国环境科学研究院 | The method that interior circulation is folded to upflow type anaerobic biological treatment device and its handles waste water |
| CN111875164A (en) * | 2020-07-27 | 2020-11-03 | 四川春语环保科技有限公司 | Photoelectricity-membrane bioreactor-ultrafiltration allies oneself with system of handling waste water waste liquid |
| CN114455700A (en) * | 2022-01-20 | 2022-05-10 | 扬州大学 | Anaerobic reactor baffled water outlet device |
| CN114455700B (en) * | 2022-01-20 | 2023-12-08 | 扬州大学 | Anaerobic reactor baffling water outlet device |
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