CN108059312A - Huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device - Google Patents
Huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device Download PDFInfo
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- CN108059312A CN108059312A CN201711327834.3A CN201711327834A CN108059312A CN 108059312 A CN108059312 A CN 108059312A CN 201711327834 A CN201711327834 A CN 201711327834A CN 108059312 A CN108059312 A CN 108059312A
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/004—Sludge detoxification
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of huge reservoir marine sediments original position adsorption filtration biodegradation prosthetic devices, it, which is tied, includes stay hook, connecting rope, shackle, lead wire net reaction monomers, external reinforcing bar, wherein lead wire net reaction monomers have several, it is connected with shackle at the bottom, external reinforcing bar is connected to connecting rope on the stay hook of reservoir bottom sides.Advantage：The pollutant in huge reservoir deposit can be effectively removed；Realize the in-situ immobilization to reservoir sediments；Realize the in-situ immobilization of reservoir base sludge.Device operation can recycle after a certain period of time, gel ball therein, resin and the equal reusable edible of biologic packing material ball；In addition, not consumed energy in the device operational process, simple in structure, and it is easy to operation, it is easy to maintenance.
Description
Technical field
The present invention relates to a kind of huge reservoir marine sediments " absorption-filtering-biodegradation " prosthetic device in situ,
Belong to dystrophication deposit process field.
Background technology
Substantial amounts of pollutant can deposit in deposit in river and lake storehouse.With the variation of water body environment, in sludge
Nitrogen phosphorus, heavy metal and organic pollution cause secondary pollution to water body release, and serious threat is brought to water ecological environment.At present,
In sludge treatment field, both technologies generally are handled using original position and dystopy to the disposal of sludge.In-situ treatment technology is
Covering in situ is carried out to the sludge in lake or reservoir bottom, utilizes the pollution in the method absorption sludge of physics, chemistry or biology
Object is purified sludge, and water quality is clarified；Dystopy treatment technology is directed to the sludge for having excavated or having aspirated disembarkation, carries out nothing
Evilization processing, realizes recycling.Since dystopy method of disposal is great in constructing amount, investment is high, and larger to sediment disturbance, easily triggers
Secondary pollution, and cost of disposal bottom in situ, effect is more notable, therefore to the processing of Large River and lake storehouse deposit, uses
The method disposed in situ has greater advantage.
At present, the research for the technology and method disposed in situ in relation to fluviolacustrine deposit object is more, but there is also more defects.Example
Such as, Publication No. CN106673384A discloses a kind of heavy metal pollution of water body deposit covering restorative procedure in situ.This method
For the coating for setting three kinds of materials different on river drift, according to the depth of water body and water velocity selection combination, tie
Physics, chemistry, biological prosthetic means are closed, eliminates or drop bottom sediment pollutes.But absorption of this method to sediment pollution object
Efficiency is the bottom of compared with, and the preparation of cerium modified zeolite is more complicated, and whole implementation is got up comparatively laborious, does not also account for subsequent material
Expect recycling problem.CN106554141A discloses a kind of method of marine sediments in-situ immobilization.This method is first to heavy
Metal-chelator is added in product object, then adds flocculant, organic matter degradation material, composite non-metal mineral, calcite successively.Most
End form can handle multiple pollutant into calcite coating, versatile, the method be by the water surface directly to deposition
Object feeds intake stirring, but adds metal-chelator and secondary pollution is caused to deposit, and mainly for muddy ground and seabeach
Surface, without reference to the reparation to Deep-water Sediment.It is former that CN102557221A discloses a kind of eutrophic water deposit phosphorus
The preparation method and application of position passivator.The passivator is with sodium bentonite and modifier alum by certain mass than uniformly mixed
It closes, Direct Uniform is sprayed at water surface, and passivator passes through the nothing in suction-operated quick adsorption water body in infall process
Machine phosphorus and suspended matter, final settlement form masking layer in deposit surface, can reach the purpose of in-situ control sediment phosphorus release,
Overlying water phosphorus content is reduced, inhibits body eutrophication.But this method is to have obstructed pollutant in deposit to water
Body discharges, and there is no thoroughly clearing the pollution off, changes with water body environment, the pollutant in deposit can be also discharged into water body.
Due to the construction of a large amount of hydraulic engineerings in China at this stage, numerous huge reservoirs, such as Three Gorges Reservoir are formd, it is small
Unrestrained bottom reservoir etc..Drainage area involved by these reservoirs is big, and since soil erosion is more serious so that these deep water
Organic macromolecule material, heavy metal contaminants and nitrogen and phosphorus pollution substance in reservoir sediments is more.When in reservoir sediments
Pollutant release, generate secondary pollution when, the water quality of reservoir area will be produced bigger effect, also threaten reservoir area water environment safety with
And the water safety of reservoir area nearby residents.It is but also rarely found currently for the technology of huge reservoir deposit in-situ immobilization.
The content of the invention
The present invention proposes a kind of huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device, mesh
Be intended to for current huge reservoir marine sediments in-situ treatment technology lack present situation, have principle it is simple, adsorption efficiency
Height, it is environmental-friendly, it is easy for construction, consume energy bottom the features such as.Device is covered on huge reservoir bed mud, and the pollutant in bed mud is upward
During release, pass through physical absorption of the gel ball to the macromolecular organic pollution in deposit；The large porous strong acid of Zero-valent Iron load
Filtering of the property cation exchange resin to the heavy metal in deposit；And biodegradation of the biologic packing material ball to nitrogen and phosphorus pollutants
Effect, reaches the catharsis to marine sediments.
The technical solution of the present invention：Dress is repaired in the absorption-filtering-biodegradation of huge reservoir marine sediments original position
It puts, structure is to include stay hook 1, connecting rope 2, shackle 3, lead wire net reaction monomers 4, external reinforcing bar, and wherein lead wire net reacts
Monomer 4 has several, is connected with shackle 3 at the bottom, external reinforcing bar 12 is connected to the fixation of reservoir bottom sides with connecting rope 2
On hook 1.
Advantages of the present invention：
（1）By gel ball physical absorption, the chemical reaction of resin-carried Zero-valent Iron and heavy metal, the filtration of resin,
And the degradation of microorganism, the pollutant in deposit can be effectively removed, improves the processing effect to marine sediments
Rate；
（2）Gel ball has abundant gap, improves the suction-operated to larger molecular organics；
（3）The voidage of resin is also higher, there is certain suction-operated to pollutant, while in the anaerobism of huge reservoir bottom
Zero-valent Iron reacts with heavy metal in environment, and heavy metal is made to form precipitation and is accumulated in resin duct, is improved to heavy metal
Removal rate；
（4）Biologic packing material ball has larger specific surface area, and a large amount of microorganisms of attachment can be to nitrogen and phosphorus pollution substance in deposit
Rapidly and efficiently degradation；
（5）The anaerobic environment of huge reservoir bottom provides good condition for the microbial growth on biological filling ball,
Improve the removal rate to nitrogen phosphorus；
（6）Low, easy to use, the function-stable of device operation energy consumption, management are simple.After device uses a period of time, to it
It is recycled, highly acid macroreticular resin, biologic packing material ball is all reusable by respective handling, does not generate secondary pollution.
Description of the drawings
Fig. 1 is the horizontal layout signal of huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device
Figure.
Fig. 2 is the reaction monomers section view of huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device
Figure.
Fig. 3 is the reaction monomers section of huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device
Figure.
Fig. 4 is biologic packing material ball.
Fig. 5 is the galvanized wire of the reaction monomers of huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device
Net circuit theory schematic diagram.
1 in figure it is stay hook, 2 be connecting rope, 3 be shackle, 4 be lead wire net reaction monomers, 5 is gel ball adsorption layer, 6
Be resin filter layer, 7 be biodegradable layer, 8 be gel ball, 9 be Zero-valent Iron load macropore strong acid cation exchanger resin,
10 it is biologic packing material ball, 11 be non-woven fabrics, 12 be reinforcing bar, 13 is lead wire net.
Specific embodiment
As shown in Figure 1, huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device, structure include
Stay hook 1, connecting rope 2, shackle 3, lead wire net reaction monomers 4, external reinforcing bar, wherein lead wire net reaction monomers 4 have several,
It is connected with shackle 3 at the bottom, external reinforcing bar 12 is connected to connecting rope 2 on the stay hook 1 of reservoir bottom sides.
As shown in Figure 2,3, gel ball adsorption layer 5, resin filter layer 6 are followed successively by lead wire net reaction monomers 4 from the bottom up
With biodegradable layer 7, gel ball adsorption layer 5 and resin filter layer 6 are wrapped up respectively with non-woven fabrics 11, convenient for device after use
Convenient disassembly, and recovery processing of classifying.
The gel ball adsorption layer 5 wraps up all gel balls 8 by non-woven fabrics 11 and is formed, and positioned at 4 lowest level of monomer, accounts for
According to the volume of monomer 1/3rd.The radius of single gel ball 8 is 8mm or so, has abundant gap structure, can be adsorbed big
Measure organic macromolecule pollutant.
The resin filter layer 6 is equally the macropore strong acid cation friendship that all Zero-valent Iron absorption are wrapped up by non-woven fabrics 11
The formation of resin 9 is changed, positioned at 4 interlayer of monomer.The grain size of the macropore strong acid cation exchanger resin 9 of single Zero-valent Iron absorption
For 0.63mm-1.25mm；Zero-valent Iron on macropore strong acid cation exchanger resin 9 occurs to chemically react and formed with heavy metal
Precipitation is gathered in 9 duct of macropore strong acid cation exchanger resin.
The thickness of resin filter layer 6 can be determined according to the heavy metal pollution degree of the reservoir sediments of required reparation, work as water
When storehouse Heavy Metal In Sediments content is higher, the thickness of resin filter layer 6 can be suitably thickened.
The biodegradable layer 7 is that the biologic packing material ball 10 of biofilm is placed in 4 inside top layer of monomer to be formed
, the radius of single biologic packing material ball 10 is 10cm, and the quantity of biologic packing material ball 10 can be according to the reservoir sediments of required reparation
Eutrophic extent determine, multilayer can be put.
The grain size of the gel ball 8 is 8mm or so, and manufacturing process is：By polyvinyl alcohol and sodium alginate in 95-100Co
It is dissolved by heating in water-bath, adds in active carbon powder according to certain weight ratio after being completely dissolved, and be uniformly mixed；When being cooled to room temperature
Afterwards, 1%CaCl is instilled2- saturation boric acid mixed liquor, and constantly mix slowly for 24 hours, it is then cleaned 3-4 times, is coagulated with distilled water
Gel ball 8 is finally transferred in prosthetic device and uses by glueballs 8.Wherein polyvinyl alcohol：Sodium alginate：The weight ratio of activated carbon
For：50：2：5.
The grain size of the macropore strong acid cation exchanger resin 9 of Zero-valent Iron absorption is 0.63mm-1.25mm, manufacturing process
For：By macropore strong acid cation exchanger resin and the FeCl of 2mol/L3Aqueous solution mixes, and shakes 4h at room temperature, filters out, with steaming
Distilled water is washed, then the NaBH that the mass fraction prepared with anaerobic water is 3%4The washed resin of solution reduction 15 minutes, filters out,
Monomer 4 is packed into use.
As shown in Figure 4, a diameter of 10cm of biologic packing material ball 10, the biofilm process of biologic packing material ball 10 are：
1）Using the activated sludge in anaerobic digester in neighbouring water factory as seed sludge, in room temperature, oxygen concentration 0.1mg/L
Environment in, by activated sludge and homemade Anaerobic culturel liquid with 1：3 volume ratio mixing, adds in biologic packing material ball, stands
For 24 hours, part supernatant in container is taken out, equivalent amount of active sludge is added, then stands for 24 hours；
2）The waste water in reservoir is flowed slowly into, hydraulic detention time 36h detects Inlet and outlet water COD dailyCrValue, and observe micro- life
Object growing state, works as CODCrValue removal rate reaches higher level, and can represent that biologic packing material ball 10 is hung after stable operation one week
Film success.
Biologic packing material ball 10 can be taken out at this time, be placed on upper strata in lead wire net reaction monomers 4 and use.Wherein homemade anaerobism
Culture solution is the synthetic wastewater manually prepared, and each nutriment mass ratio of addition is controlled at m (COD)：m(N)：m(p)=200-
300：5：1.
As shown in Figure 5, the frame of lead wire net reaction monomers be using 10 reinforcing bars 12 of Φ as skeleton, using lead wire net 13 as
Six faces of lead wire net reaction monomers 4, surface are arranged to openable, can facilitate filler in periodic replacement case, lead wire net 13
Aperture is 10mm.For easy for installation, the different reservoir bottom configurations of adaptation, the size of 4 frame of lead wire net reaction monomers can be according to reality
Border situation is adjusted.
When the present invention repairs huge reservoir marine sediments in the original location, first, when the pollutant in deposit discharges upwards,
Gel ball adsorption layer 5 is first passed through, adsorbs soluble organic macromolecule pollutant（Including organic matters such as benzene class, phenols）, gel ball
Adsorption layer 5 has good permeability, and inside has abundant pore structure, and pollutant is made to be easily accessible ball interior,
And it is gathered in ball interior.
Secondly, when the pollutant that some gel balls not to be adsorbed adsorb continues up release, resin filter layer 6 is to a huge sum of money
Belong to and noxious material is filtered, the sulfonic acid group on the macropore strong acid cation exchanger resin 9 of Zero-valent Iron load will be to dirt
It contaminates object particularly heavy metal and generates electrostatic attraction, be allowed to be enriched in resin duct, then heavy metal contaminants and be supported on tree
Zero-valent Iron on fat 4 chemically reacts, and is reduced heavy metal, and forms precipitation and accumulate in resin duct.It is born on resin
The Zero-valent Iron of load is more, also faster to the adsorption rate of heavy metal, and efficiency is higher.The macropore strong acid sun that can be loaded by Zero-valent Iron
The heavy metal ion that ion exchange resin 9 adsorbs has chromium, lead etc..Zero-valent Iron can also be used its reproducibility and be reacted with chlorocarbon, real
Existing dechlorination.
Finally not by resin filtering some nitrogenous, phosphorus when nutriment discharge further up when, biodegradable layer 7
In biologic packing material ball 10 on the anaerobic bacteria that loads will degrade to nitrogenous, phosphorus compound, achieve the effect that denitrogenation dephosphorizing.
Effect of the pollutant Jing Guo lead wire net reaction monomers 4 is largely removed, and reaches purification deposit and clear
The purpose of clear water matter.When the device is run 3 months or so in reservoir bottom, the clean effect of device substantially weakens, and at this time may be used
Whole device is salvaged dismounting.Resin 9 is desorbed, and loads Zero-valent Iron again；Gel ball 8 is cleaned,
Gel ball 8 can recycle 6 times；Biologic packing material ball 10 is cleaned, and biofilm again, by these materials Jing Guo after-treatment
Fibril net reaction monomers 4 are reloaded, it is reusable.
Claims (10)
1. huge reservoir marine sediments original position absorption-filtering-biodegradation prosthetic device, it is characterized in that including stay hook, connecting
Splicing, shackle, lead wire net reaction monomers, external reinforcing bar, wherein lead wire net reaction monomers have several, are connected with shackle at the bottom
It connects, external reinforcing bar is connected to connecting rope on the stay hook of reservoir bottom sides.
2. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position according to claim 1,
It is characterized in being followed successively by gel ball adsorption layer, resin filter layer and biodegradable layer in the lead wire net reaction monomers from the bottom up,
Wherein gel ball adsorption layer and resin filter layer convenient for the convenient disassembly of device after use, and divide respectively with non-woven wraps
Class is recycled；
The gel ball adsorption layer is formed by all gel balls of non-woven wraps, positioned at monomer lowest level, occupies monomer three
/ mono- volume, the radius of single gel ball is 8mm, has abundant gap structure, can adsorb a large amount of organic macromolecules
Pollutant.
3. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position according to claim 2,
It is equally to exchange tree by the macropore strong acid cation of all Zero-valent Iron absorption of non-woven wraps to be characterized in the resin filter layer
What fat was formed, positioned at monomer interlayer, the grain size of the macropore strong acid cation exchanger resin of single Zero-valent Iron absorption is
0.63mm-1.25mm；It is heavy that Zero-valent Iron on macropore strong acid cation exchanger resin occurs to chemically react and formed with heavy metal
Shallow lake is gathered in macropore strong acid cation exchanger resin duct.
4. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position according to claim 3,
It is characterized in that the thickness of the resin filter layer is determined according to the heavy metal pollution degree of the reservoir sediments of required reparation, works as reservoir
When Heavy Metal In Sediments content is higher, the thickness of resin filter layer is thickened.
5. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position according to claim 2,
It is that the biologic packing material spherical pendulum of biofilm is placed on top layer inside monomer to be formed to be characterized in the biodegradable layer, single
The radius of biologic packing material ball is 10cm, and the quantity of biologic packing material ball can be according to the eutrophication journey of the reservoir sediments of required reparation
Degree determines, puts multilayer.
6. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position according to claim 2,
It is characterized in the grain size of the gel ball for 8mm, manufacturing process is：Polyvinyl alcohol and sodium alginate are added in 95-100 DEG C of water-bath
Heat of solution adds in active carbon powder according to certain weight ratio after being completely dissolved, and is uniformly mixed；After room temperature is cooled to, instill
1% CaCl2- saturation boric acid mixed liquor, and constantly mix slowly for 24 hours, it is then cleaned 3-4 times with distilled water, obtains gel ball, most
Gel ball is transferred in prosthetic device afterwards and is used, wherein polyvinyl alcohol：Sodium alginate：The weight ratio of activated carbon is 50：2：5.
7. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position according to claim 3,
The grain size for being characterized in the macropore strong acid cation exchanger resin of Zero-valent Iron absorption is 0.63mm-1.25mm, manufacturing process
For：By macropore strong acid cation exchanger resin and the FeCl of 2mol/L3Aqueous solution mixes, and shakes 4h at room temperature, filters out, with steaming
Distilled water is washed, then the NaBH that the mass fraction prepared with anaerobic water is 3%4The washed resin of solution reduction 15 minutes, filters out,
Lead wire net reaction monomers are packed into use.
8. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position according to claim 5,
It is characterized in a diameter of 10cm of the biologic packing material ball, the biofilm process of biologic packing material ball is：
1）Using the activated sludge in anaerobic digester in neighbouring water factory as seed sludge, in room temperature, oxygen concentration 0.1mg/L
Environment in, by activated sludge and homemade Anaerobic culturel liquid with 1：3 volume ratio mixing, adds in biologic packing material ball, stands
For 24 hours, part supernatant in container is taken out, equivalent amount of active sludge is added, then stands for 24 hours；
2）The waste water in reservoir is flowed slowly into, hydraulic detention time 36h detects Inlet and outlet water COD dailyCrValue, and observe micro- life
Object growing state, works as CODCrValue removal rate reaches higher level, and can represent biologic packing material ball biofilm after stable operation one week
Success；
Biologic packing material ball can be taken out at this time, be placed on upper strata in lead wire net reaction monomers and use, wherein homemade Anaerobic culturel liquid
For the synthetic wastewater manually prepared, each nutriment mass ratio of addition is controlled at m (COD)：m(N)：m(p)=200-300：5：
1。
9. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position according to claim 1,
The frame for being characterized in the lead wire net reaction monomers is using 10 reinforcing bars of Φ as skeleton, using lead wire net as lead wire net reaction monomers
Six faces, surface is arranged to openable, facilitates filler in periodic replacement case, the aperture of lead wire net is 10mm, for installation
Conveniently, different reservoir bottom configurations are adapted to, the size of lead wire net reaction monomers frame can be adjusted according to actual conditions.
10. absorption-filtering-biodegradation prosthetic device in huge reservoir marine sediments original position as described in claim 1 is utilized,
In reservoir bottom during in-situ immobilization：
（1）When pollutant in deposit discharges upwards, gel ball adsorption layer is first passed through, it is dirty to adsorb soluble organic macromolecule
Contaminating object includes the organic matters such as benzene class, phenols, and gel ball adsorption layer has good permeability, and internal with abundant hole
Structure makes pollutant be easily accessible ball interior, and is gathered in ball interior；
（2）When the pollutant that some gel balls not to be adsorbed adsorb continues up release, resin filter layer is to heavy metal and has
Noxious material is filtered, and the sulfonic acid group on the macropore strong acid cation exchanger resin of Zero-valent Iron load will be special to pollutant
Be heavy metal generate electrostatic attraction, be allowed to be enriched in resin duct, then heavy metal contaminants and be supported on resin zero
Valency iron chemically reacts, and is reduced heavy metal, and forms precipitation and accumulate in resin duct；The Zero-valent Iron loaded on resin
More, also faster to the adsorption rate of heavy metal, efficiency is higher.The macropore strong acid cation that can be loaded by Zero-valent Iron exchanges tree
The heavy metal ion of fat absorption has chromium, lead, and Zero-valent Iron can also be used its reproducibility and be reacted with chlorocarbon, realize dechlorination；
（3）When not discharged further up by some nitrogenous, phosphorus nutriments that resin filters, the biology in biodegradable layer
The anaerobic bacteria loaded on filling ball will degrade to nitrogenous, phosphorus compound, achieve the effect that denitrogenation dephosphorizing；
（4）Effect of the pollutant Jing Guo lead wire net reaction monomers is largely removed, and reaches purification deposit and clarification
The purpose of water quality；When being run 3 months in reservoir bottom, clean effect substantially weakens, and at this time can salvage whole device
To remove；Macropore strong acid cation exchanger resin is desorbed, and loads Zero-valent Iron again；Gel ball is cleaned,
Gel ball recycles 6 times；Biologic packing material ball is cleaned, and biofilm again, these materials Jing Guo after-treatment are filled again
Enter fibril net reaction monomers, it is reusable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327834.3A CN108059312B (en) | 2017-12-13 | 2017-12-13 | In-situ adsorption-filtration-biodegradation repair device for polluted sediments in deep water reservoir |
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|---|---|---|---|
| CN201711327834.3A CN108059312B (en) | 2017-12-13 | 2017-12-13 | In-situ adsorption-filtration-biodegradation repair device for polluted sediments in deep water reservoir |
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| CN117964021A (en) * | 2024-03-29 | 2024-05-03 | 兴泰建设集团有限公司 | V-shaped filter tank for sewage treatment |
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| CN117964021B (en) * | 2024-03-29 | 2024-06-07 | 兴泰建设集团有限公司 | V-shaped filter tank for sewage treatment |
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