CN113845216A - Magnetic carrier coupling UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process - Google Patents
Magnetic carrier coupling UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process Download PDFInfo
- Publication number
- CN113845216A CN113845216A CN202111189424.3A CN202111189424A CN113845216A CN 113845216 A CN113845216 A CN 113845216A CN 202111189424 A CN202111189424 A CN 202111189424A CN 113845216 A CN113845216 A CN 113845216A
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- China
- Prior art keywords
- magnetic carrier
- uasb
- recovery tank
- sludge blanket
- anaerobic
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Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000010802 sludge Substances 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 title claims abstract description 8
- 238000010168 coupling process Methods 0.000 title claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 36
- 239000002351 wastewater Substances 0.000 claims abstract description 29
- 239000000969 carrier Substances 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical group O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Abstract
The invention belongs to the technical field of wastewater treatment, and particularly relates to a magnetic carrier coupling UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process, which comprises the following process steps: s1: preparing treatment equipment, wherein the treatment equipment comprises a UASB reactor and a recovery tank; s2: preparing a magnetic carrier, and putting the magnetic carrier into a UASB reactor; s4: conveying the wastewater positioned at the upper part of the UASB reactor to a recovery tank, and recovering the magnetic carriers in the wastewater; s5: conveying the recovered magnetic carrier to a UASB reactor; the magnetic carrier can be adsorbed by the arc-shaped magnetic sheet after entering the recovery tank, and wastewater from the conveying pipe collides with the blades to realize rotation of the recovery tank.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a magnetic carrier coupling UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process.
Background
The UASB reactor was one of the earliest anaerobic reactors developed and most commonly used, and was successfully developed in the 70's of the 20 th century by professor Lettinga et al, Wageningen university, the Netherlands. Up to now, globally installed UASB reactors have exceeded 3000 seats. The UASB reactor has the working process that raw water enters the bottom of the UASB reactor through a water pump, upwards passes through a suspended sludge layer, a three-phase separator and an overflow weir in sequence, contacts anaerobic sludge in the suspended sludge layer, flows upwards with generated biogas and carried sludge after complex biochemical reaction, is separated by the three-phase separator, gas is collected and discharged in a gas chamber, and discharged water is discharged through overflow of the overflow weir.
In the existing wastewater treatment process, a magnetic carrier is not adopted for catalysis, and a method for realizing the recycling of the magnetic carrier is not provided;
in order to solve the problems, the application provides a magnetic carrier coupling UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a magnetic carrier coupled UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process, which improves the methanogenesis efficiency by improving the stability and interspecies transfer of granular sludge.
(II) technical scheme
In order to solve the problems, the invention provides a magnetic carrier coupling UASB (upflow anaerobic sludge blanket) reinforced anaerobic methanogenesis process, which comprises the following process steps:
s1: preparing treatment equipment, wherein the treatment equipment comprises a UASB reactor and a recovery tank;
s2: preparing a magnetic carrier, and putting the magnetic carrier into a UASB reactor;
s3: introducing wastewater, and allowing the wastewater to enter a UASB reactor to efficiently produce methane through the strengthening action of a magnetic carrier;
s4: conveying the wastewater positioned at the upper part of the UASB reactor to a recovery tank, and recovering the magnetic carriers in the wastewater;
s5: and conveying the recovered magnetic carrier to a UASB reactor.
Preferably, the interior bottom of UASB reactor is provided with the water-locator, the bottom of water-locator is connected with the feed liquor pipe, UASB reactor's inner wall upper portion is fixed with the annular plate, the top of annular plate is fixed with the funnel of giving vent to anger.
Preferably, the magnetic carrier flows out of the UASB reactor and into the recovery tank by gravity.
Preferably, the top of the annular plate is provided with a first pump body, and the output end of the first pump body is connected with a delivery pipe.
Preferably, the recovery tank is installed in the rotation of the interior upper portion of recovery tank, the both ends of recovery tank are provided with the connecting cylinder, be provided with the blade on the outer wall of connecting cylinder, the conveyer pipe is kept away from the one end of first pump body and is extended to the below of blade.
Preferably, be provided with the ring channel on the outer wall of connecting cylinder, install arc filter screen and arc magnetism piece in the ring channel, arc filter screen and arc magnetism piece form cylindric structure.
Preferably, the side center department of recycling bin rotates and is connected with the drain pipe, the one end of drain pipe extends to in the recycling bin, and the other end extends to the outside of recovery jar.
Preferably, a second pump body is arranged at the inner bottom of the recovery tank, and the output end of the second pump body is connected with a circulating pipe; and a scraper is fixed on the inner wall of the recovery tank and is in contact with the outer wall of the arc-shaped magnetic sheet.
Preferably, the lower ends of the liquid inlet pipe and the circulating pipe are connected to a tee, and the tee is also connected with a waste water inlet pipe.
Preferably, the magnetic carrier is a ferroferric oxide nano magnetic carrier.
The technical scheme of the invention has the following beneficial technical effects:
the magnetic carrier can be adsorbed by the arc-shaped magnetic sheet after entering the recovery tank, and wastewater from the conveying pipe collides with the blades to realize rotation of the recovery tank.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic diagram of the structure of a UASB reactor in the present invention;
FIG. 3 is a schematic view of the construction of the recovery tank of the present invention;
fig. 4 is a partial cross-sectional view of a recovery tank of the present invention.
In the figure: 1. a UASB reactor; 2. a recovery tank; 3. a delivery pipe; 4. an air outlet funnel; 5. a liquid inlet pipe; 6. a tee joint; 7. a waste water inlet pipe; 8. a circulation pipe; 9. a drain pipe; 10. a second pump body; 11. an annular plate; 12. a first pump body; 13. a water distributor; 14. a recycling bin; 15. a connecting cylinder; 16. a blade; 17. an arc-shaped filter screen; 18. an arc-shaped magnetic sheet; 19. a scraper.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the magnetic carrier-coupled UASB enhanced anaerobic methanogenesis process provided by the present invention comprises the following process steps:
s1: preparing treatment equipment, wherein the treatment equipment comprises a UASB reactor 1 and a recovery tank 2;
s2: preparing a magnetic carrier, and putting the magnetic carrier into a UASB reactor 1;
s3: introducing wastewater, wherein the wastewater enters the UASB reactor 1, and efficiently producing methane through the strengthening effect of the magnetic carrier;
s4: conveying the wastewater positioned at the upper part of the UASB reactor 1 to a recovery tank 2, and recovering magnetic carriers in the wastewater;
s5: the recovered magnetic carrier is transferred to the UASB reactor 1.
In this embodiment, it should be noted that a water distributor 13 is arranged at the inner bottom of the UASB reactor 1, a liquid inlet pipe 5 is connected to the bottom of the water distributor 13, an annular plate 11 is fixed on the upper portion of the inner wall of the UASB reactor 1, an air outlet funnel 4 is fixed on the top of the annular plate 11, and waste water can be uniformly sprayed out through the water distributor 13, so that better catalytic reaction of waste water can be realized.
In this embodiment, it should be noted that the magnetic carrier flows out of the UASB reactor 1 and enters the recovery tank 2 by gravity, and alternatively, a first pump 12 is disposed on the top of the annular plate 11, and the output end of the first pump 12 is connected to the delivery pipe 3.
In this embodiment, it should be noted that the recovery tank 2 is rotatably mounted with the recovery barrel 14 at the upper portion, the connection cylinders 15 are disposed at two ends of the recovery barrel 14, the blades 16 are disposed on the outer wall of the connection cylinders 15, and one end of the delivery pipe 3, which is far away from the first pump body 12, extends to a position below the blades 16.
In this embodiment, it should be noted that an annular groove is formed in the outer wall of the connecting cylinder 15, an arc-shaped filter screen 17 and an arc-shaped magnetic sheet 18 are installed in the annular groove, and the arc-shaped filter screen 17 and the arc-shaped magnetic sheet 18 form a cylindrical structure.
In this embodiment, it should be noted that the drain pipe 9 is rotatably connected to the center of the side surface of the recycling bin 14, one end of the drain pipe 9 extends into the recycling bin 14, and the other end extends to the outside of the recycling bin 2.
In this embodiment, it should be noted that a second pump body 10 is disposed at the inner bottom of the recovery tank 2, and the output end of the second pump body 10 is connected to the circulation pipe 8; retrieve and be fixed with scraper blade 19 on jar 2's the inner wall, scraper blade 19 contacts with the outer wall of arc magnetic sheet 18, and when recycling bin 1 rotated, scraper blade 19 can strike off the magnetic carrier, and when the magnetic carrier was scraped arc filter screen 17, owing to not had adsorption, the magnetic carrier can drop to the below of retrieving jar 2, realizes recycling through the second pump body 10.
In this embodiment, it should be noted that the lower ends of the liquid inlet pipe 5 and the circulating pipe 8 are both connected to the tee 6, and the tee 6 is also connected to a waste water inlet pipe 7.
In this embodiment, it should be noted that the magnetic carrier is a ferroferric oxide nano magnetic carrier.
The working principle is as follows: preparing treatment equipment, wherein the treatment equipment comprises a UASB reactor 1 and a recovery tank 2;
preparing a magnetic carrier, and putting the magnetic carrier into a UASB reactor 1;
introducing wastewater, wherein the wastewater enters the UASB reactor 1, and efficiently producing methane through the strengthening effect of the magnetic carrier;
conveying the wastewater positioned at the upper part of the UASB reactor 1 to a recovery tank 2, and recovering magnetic carriers in the wastewater;
conveying the recovered magnetic carrier to a UASB reactor 1;
specifically, a water distributor 13 is arranged at the inner bottom of a UASB (upflow anaerobic sludge blanket) reactor 1, a liquid inlet pipe 5 is connected to the bottom of the water distributor 13, an annular plate 11 is fixed to the upper part of the inner wall of the UASB reactor 1, an air outlet funnel 4 is fixed to the top of the annular plate 11, wastewater can be uniformly sprayed out through the water distributor 13, and then better catalytic reaction of the wastewater can be realized, an annular groove is arranged on the outer wall of a connecting cylinder 15, an arc-shaped filter screen 17 and an arc-shaped magnetic sheet 18 are installed in the annular groove, the arc-shaped filter screen 17 and the arc-shaped magnetic sheet 18 form a cylindrical structure, a second pump body 10 is arranged at the inner bottom of a recovery tank 2, and the output end of the second pump body 10 is connected with a circulating pipe 8; retrieve and be fixed with scraper blade 19 on jar 2's the inner wall, scraper blade 19 contacts with the outer wall of arc magnetic sheet 18, magnetic carrier gets into and retrieves jar 2 back, can be adsorbed by arc magnetic sheet 18, and the waste water that conveyer pipe 3 came out collides blade 16, realize recycling bin 14's rotation, when recycling bin 1 rotated, scraper blade 19 can strike off magnetic carrier, when magnetic carrier was scraped arc filter screen 17 on, owing to not had adsorption, magnetic carrier can drop to the below of retrieving jar 2, realize recycling through the second pump body 10.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention.
Claims (10)
1. A magnetic carrier coupling UASB (upflow anaerobic sludge blanket) reinforced anaerobic methanogenesis process is characterized by comprising the following process steps:
s1: preparing a treatment device, wherein the treatment device comprises a UASB reactor (1) and a recovery tank (2);
s2: preparing a magnetic carrier, and putting the magnetic carrier into a UASB reactor (1);
s3: introducing wastewater, wherein the wastewater enters the UASB reactor (1) and efficiently produces methane through the strengthening effect of the magnetic carrier;
s4: conveying the wastewater positioned at the upper part of the UASB reactor (1) into a recovery tank (2) to recover magnetic carriers in the wastewater;
s5: the recovered magnetic carrier is conveyed to a UASB reactor (1).
2. The UASB (upflow anaerobic sludge blanket) reinforced anaerobic methanogenesis process with magnetic carrier coupling according to claim 1, wherein a water distributor (13) is arranged at the inner bottom of the UASB reactor (1), a liquid inlet pipe (5) is connected to the bottom of the water distributor (13), an annular plate (11) is fixed on the upper part of the inner wall of the UASB reactor (1), and a gas outlet funnel (4) is fixed at the top of the annular plate (11).
3. A magnetic carrier coupled UASB enhanced anaerobic methanogenesis process according to claim 1 wherein the magnetic carrier flows out of the UASB reactor (1) into the recovery tank (2) by gravity.
4. The UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process coupled with a magnetic carrier as claimed in claim 2, wherein the top of the annular plate (11) is provided with a first pump body (12), and the output end of the first pump body (12) is connected with a delivery pipe (3).
5. A magnetic carrier coupled UASB (UASB) enhanced anaerobic methanogenesis process according to claim 4, wherein the recovery tank (2) is rotatably installed at the inner upper part thereof with a recovery barrel (14), connecting barrels (15) are arranged at the two ends of the recovery barrel (14), blades (16) are arranged on the outer wall of the connecting barrels (15), and one end of the delivery pipe (3) far away from the first pump body (12) extends to the lower part of the blades (16).
6. A magnetic carrier coupled UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process according to claim 5, wherein the outer wall of the connecting cylinder (15) is provided with an annular groove, an arc-shaped filter screen (17) and an arc-shaped magnetic sheet (18) are installed in the annular groove, and the arc-shaped filter screen (17) and the arc-shaped magnetic sheet (18) form a cylindrical structure.
7. A UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process coupled with magnetic carrier as claimed in claim 5, wherein the side center of the recycling bin (14) is rotatably connected with a drain pipe (9), one end of the drain pipe (9) extends into the recycling bin (14), and the other end extends to the outside of the recycling tank (2).
8. The UASB (upflow anaerobic sludge blanket) reinforced anaerobic methanogenesis process coupled with magnetic carrier as claimed in claim 2, wherein the inner bottom of the recovery tank (2) is provided with a second pump body (10), and the output end of the second pump body (10) is connected with a circulating pipe (8); a scraper (19) is fixed on the inner wall of the recovery tank (2), and the scraper (19) is in contact with the outer wall of the arc-shaped magnetic sheet (18).
9. The UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process coupled with magnetic carrier as claimed in claim 8, wherein the lower ends of the liquid inlet pipe (5) and the circulating pipe (8) are both connected with a tee joint (6), and the tee joint (6) is further connected with a waste water inlet pipe (7).
10. The UASB (upflow anaerobic sludge blanket) reinforced anaerobic methanogenesis process coupled with a magnetic carrier as claimed in claim 1, wherein the magnetic carrier is a ferroferric oxide nano magnetic carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111189424.3A CN113845216A (en) | 2021-10-12 | 2021-10-12 | Magnetic carrier coupling UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111189424.3A CN113845216A (en) | 2021-10-12 | 2021-10-12 | Magnetic carrier coupling UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process |
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| Publication Number | Publication Date |
|---|---|
| CN113845216A true CN113845216A (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111189424.3A Pending CN113845216A (en) | 2021-10-12 | 2021-10-12 | Magnetic carrier coupling UASB (upflow anaerobic sludge blanket) enhanced anaerobic methanogenesis process |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201552056U (en) * | 2009-11-04 | 2010-08-18 | 宁波广博纳米材料有限公司 | Magnetic powder collecting equipment |
| CN105543282A (en) * | 2015-12-22 | 2016-05-04 | 湘潭大学 | A method of increasing an anaerobic biological hydrogen production yield from organic waste water or waste |
-
2021
- 2021-10-12 CN CN202111189424.3A patent/CN113845216A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201552056U (en) * | 2009-11-04 | 2010-08-18 | 宁波广博纳米材料有限公司 | Magnetic powder collecting equipment |
| CN105543282A (en) * | 2015-12-22 | 2016-05-04 | 湘潭大学 | A method of increasing an anaerobic biological hydrogen production yield from organic waste water or waste |
Non-Patent Citations (1)
| Title |
|---|
| 贺佐明: "磁UASB-MBR工艺处理印染废水实验研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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Application publication date: 20211228 |