CN114644432B - Membrane method high-pressure permeation type garbage leachate treatment device - Google Patents
Membrane method high-pressure permeation type garbage leachate treatment device Download PDFInfo
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- CN114644432B CN114644432B CN202210327240.7A CN202210327240A CN114644432B CN 114644432 B CN114644432 B CN 114644432B CN 202210327240 A CN202210327240 A CN 202210327240A CN 114644432 B CN114644432 B CN 114644432B
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- partition plate
- tank
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- 239000012528 membrane Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000005192 partition Methods 0.000 claims abstract description 33
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- 238000005273 aeration Methods 0.000 claims abstract description 8
- 239000010865 sewage Substances 0.000 claims description 27
- 238000001179 sorption measurement Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 238000001223 reverse osmosis Methods 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 29
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004904 shortening Methods 0.000 abstract description 4
- 239000000149 chemical water pollutant Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
Abstract
The invention discloses a membrane method high-pressure permeation type garbage percolate treatment device, which comprises a sedimentation tank, a biological anaerobic tank, an aeration tank, a pretreatment filter, a high-pressure water pump and a high-pressure permeation type filter tank which are connected in sequence; the high-pressure permeation type filter tank comprises a tank body, wherein an upper partition plate is arranged on the upper portion in the tank body, a group of annular uniformly distributed conical pressurizing holes are formed in the upper partition plate, a hollow structure upper cylindrical permeation membrane group is arranged below the conical pressurizing holes, a middle partition plate is arranged below the upper cylindrical permeation membrane group, a central water permeable hole and an annular water permeable groove are formed in the middle partition plate, the central water permeable hole and the annular water permeable groove are formed in the inner side and the outer side of the upper cylindrical permeation membrane group, a central permeation membrane group is arranged below the central water permeable hole, an annular permeation membrane group is arranged below the annular water permeable groove, and a lower partition plate is arranged below the central permeation membrane group and the annular permeation membrane group. The invention has the characteristics of effectively improving the filtering effect and shortening the filtering time.
Description
Technical Field
The invention relates to landfill leachate treatment equipment, in particular to a membrane method high-pressure permeation type landfill leachate treatment device.
Background
The generation reasons of the landfill leachate in the refuse incineration power plant are mainly two, namely, the water leaked from the garbage in the stacking process; secondly, the garbage needs to be pushed by a garbage pushing mechanism before being sent into the incinerator, and percolate flows out in the process. Since landfill leachate is a liquid containing high concentration of organic or inorganic components, it cannot be directly discharged and needs to be filtered. At present, the treatment of landfill leachate mainly comprises the following processes: firstly, carrying out sedimentation treatment in a sedimentation tank to remove most of impurities and sludge; then the clarified percolate is introduced into an anaerobic tank for anaerobic reaction; then carrying out aerobic reaction by an aeration tank; and finally, the whole filtration is completed after the secondary sedimentation tank and the activated carbon adsorption filtration. However, the conventional filtering mode has a general filtering effect, and the required filtering time is long and the efficiency is low. Therefore, the conventional technique has problems of general filtering effect and long filtering time.
Disclosure of Invention
The invention aims to provide a membrane method high-pressure permeation type garbage leachate treatment device. The invention has the characteristics of effectively improving the filtering effect and shortening the filtering time.
The technical scheme of the invention is as follows: a membrane method high-pressure permeation type garbage leachate treatment device comprises a sedimentation tank, a biological anaerobic tank, an aeration tank, a pretreatment filter, a high-pressure water pump and a high-pressure permeation type filter tank which are connected in sequence; the high-pressure permeation type filter tank comprises a tank body, wherein an upper partition plate is arranged on the upper portion in the tank body, a group of annular uniformly distributed conical pressurizing holes are formed in the upper partition plate, a hollow structure upper cylindrical permeation membrane group is arranged below the conical pressurizing holes, a middle partition plate is arranged below the upper cylindrical permeation membrane group, a central water permeable hole and an annular water permeable groove are formed in the middle partition plate, the central water permeable hole and the annular water permeable groove are formed in the inner side and the outer side of the upper cylindrical permeation membrane group, a central permeation membrane group is arranged below the central water permeable hole, an annular permeation membrane group is arranged below the annular water permeable groove, and a lower partition plate is arranged below the central permeation membrane group and the annular permeation membrane group.
In the membrane method high-pressure permeation type garbage leachate treatment device, the cross sections of the central water permeable hole and the annular water permeable groove are of trapezoid structures with large upper parts and small lower parts.
In the membrane method high-pressure osmosis type garbage leachate treatment device, the cylindrical osmosis membrane group and the central osmosis membrane group both comprise cylindrical membrane shells, and reverse osmosis membranes are arranged on the cylindrical wall surfaces of the cylindrical membrane shells; the annular permeable membrane group comprises an annular shell, and annular reverse osmosis membranes are arranged on the inner side and the outer side of the annular shell.
In the membrane method high-pressure permeation type garbage leachate treatment device, the lower partition plate is provided with the permeable channels positioned between the central permeation membrane group and the annular permeation membrane group and positioned at the outer side of the annular permeation membrane group.
In the membrane method high-pressure permeation type garbage leachate treatment device, the annular water permeable tank and the water permeable channels are respectively provided with a connecting rod.
In the membrane method high-pressure permeation type garbage leachate treatment device, a middle sewage outlet corresponding to the upper cylindrical permeation membrane group is arranged below the middle partition plate, and a lower sewage outlet corresponding to the central permeation membrane group and the annular permeation membrane group respectively is arranged below the lower partition plate; the middle sewage outlet and the lower sewage outlet are connected with a sewage pool outside the pool body through pipelines; electromagnetic valves are arranged on the middle sewage outlet and the lower sewage outlet; the side wall surface of the tank body is also provided with a plurality of back flushing ports, and the back flushing ports are connected with a cleaning pipe and a cleaning pump.
In the foregoing high-pressure permeable garbage leachate treatment device by using a membrane method, the pretreatment filter comprises an adsorption box body, wherein a plurality of inclined active carbon adsorption layers distributed up and down are arranged in the adsorption box body, a liquid inlet is formed in the upper end of the adsorption box body, and a liquid outlet is formed in the lower end of the adsorption box body.
Compared with the prior art, the invention consists of a sedimentation tank, a biological anaerobic tank, an aeration tank, a pretreatment filter, a high-pressure water pump and a high-pressure permeation type filter tank, and the pretreatment filter and the high-pressure permeation type filter tank are utilized to replace the traditional secondary sedimentation tank, thereby not only effectively improving the filtering effect, but also greatly shortening the time required by filtering. Specifically, the invention completes the graded filtration of the landfill leachate through the mutual coordination among the upper cylindrical permeable membrane group, the central permeable membrane group and the annular permeable membrane group which are arranged in the high-pressure permeable filter tank, can effectively improve the filtration effect, can also improve the filtration efficiency and shorten the time required by filtration; meanwhile, the conical pressurizing holes are formed in the upper partition plate, and the cross sections of the central water permeable hole and the annular water permeable groove are of trapezoid structures with large upper parts and small lower parts, so that the filtering water pressure can be increased, and the filtering efficiency is improved. In summary, the invention has the characteristics of effectively improving the filtering effect and shortening the filtering time.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a structural view of a high pressure osmosis filtration tank;
fig. 3 is a structural view of the preprocessing filter.
The marks in the drawings are: 1-sedimentation tank, 2-biological anaerobic tank, 3-aeration tank, 4-pretreatment filter, 5-high pressure water pump, 6-high pressure permeation type filter tank, 7-connecting rod, 8-middle drain, 9-lower drain, 10-back flushing port, 601-tank body, 602-upper partition plate, 603-conical pressurizing hole, 604-upper cylindrical permeable membrane group, 605-middle partition plate, 606-central permeable hole, 607-annular permeable tank, 608-central permeable membrane group, 609-annular permeable membrane group, 610-lower partition plate, 611-permeable channel, 401-adsorption box body, 402-inclined active carbon adsorption layer, 403-liquid inlet and 404-liquid outlet.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. The membrane method high-pressure permeation type garbage percolate treatment device is shown in fig. 1 to 3, and comprises a sedimentation tank 1, a biological anaerobic tank 2, an aeration tank 3, a pretreatment filter 4, a high-pressure water pump 5 and a high-pressure permeation type filter tank 6 which are sequentially connected; the high-pressure permeation type filter tank 6 comprises a tank body 601, an upper partition plate 602 is arranged at the upper part in the tank body 601, a group of annular uniformly distributed conical pressurizing holes 603 are formed in the upper partition plate 602, a hollow-structure upper cylindrical permeation membrane group 604 is arranged below the conical pressurizing holes 603, a middle partition plate 605 is arranged below the upper cylindrical permeation membrane group 604, a central water permeable hole 606 and an annular water permeable groove 607 are formed in the middle partition plate 605, the central water permeable hole 606 is arranged below the central water permeable hole 606, an annular permeation membrane group 609 is arranged below the annular water permeable groove 607, and a lower partition plate 610 is arranged below the central permeation membrane group 608 and the annular permeation membrane group 609.
The cross sections of the central water permeable hole 606 and the annular water permeable groove 607 are trapezoid structures with large upper parts and small lower parts.
The cylindrical permeable membrane group 604 and the central permeable membrane group 608 comprise cylindrical membrane shells, and reverse osmosis membranes are arranged on the cylindrical wall surfaces of the cylindrical membrane shells; the annular permeable membrane group 609 comprises an annular shell, and annular reverse osmosis membranes are arranged on the inner side and the outer side of the annular shell.
The lower separator 610 is provided with a water permeable channel 611 between the central permeable membrane module 608 and the annular permeable membrane module 609 and outside the annular permeable membrane module 609.
The annular water permeable groove 607 and the water permeable channel 611 are respectively provided with a connecting rod 7.
A middle sewage outlet 8 corresponding to the upper cylindrical permeable membrane group 604 is arranged below the middle partition 605, and a lower sewage outlet 9 corresponding to the central permeable membrane group 608 and the annular permeable membrane group 609 is arranged below the lower partition 610; the middle sewage outlet 8 and the lower sewage outlet 9 are connected with a sewage pool outside the pool body 601 through pipelines; electromagnetic valves are arranged on the middle sewage drain outlet 8 and the lower sewage drain outlet 9; the side wall surface of the tank body 601 is also provided with a plurality of back flushing ports 10, and the back flushing ports 10 are connected with a cleaning pipe and a cleaning pump.
The pretreatment filter 4 comprises an adsorption box body 401, wherein a plurality of inclined active carbon adsorption layers 402 which are distributed up and down are arranged in the adsorption box body 401, a liquid inlet 403 is formed in the upper end of the adsorption box body 401, and a liquid outlet 404 is formed in the lower end of the adsorption box body 401.
The inclined arrangement of the inclined active carbon adsorption layer can increase the contact area and time between percolate and active carbon and improve the filtering effect.
The upper part of the tank body is provided with a water inlet, the lower part is provided with a water outlet, and both the water inlet and the water outlet are provided with valves.
The filtration process of the high-pressure permeation type filter tank is as follows: under the action of a high-pressure water pump, high-pressure percolate enters the upper part of the upper partition plate, flows into the upper cylindrical permeable membrane group from the conical pressurizing hole, flows out of the outer side of the upper cylindrical permeable membrane after being filtered by the reverse osmosis membrane, and flows into the lower central permeable membrane group and the annular permeable membrane group from the central permeable hole and the annular permeable tank of the middle partition plate for secondary membrane filtration; finally, the percolate after secondary filtration flows out from the water permeable channel and is discharged through a pipeline.
When the reverse osmosis membrane is required to be cleaned, the valves on the water inlet and the water outlet of the tank body are closed, then the electromagnetic valve and the cleaning pump are opened, cleaning liquid flows into the tank body from the back flushing port, the permeable membrane at each position is subjected to back flushing, and impurities adhered to the inner wall surface of the permeable membrane are discharged into the sewage disposal tank from the middle sewage disposal port and the lower sewage disposal port.
A hollow structure is arranged in the connecting rod, one end of the connecting rod is connected with the middle sewage outlet and the lower sewage outlet through pipelines respectively, and the other end of the connecting rod is connected with an external sewage pool through pipelines.
The connecting rod 7 is sleeved with a rotary sleeve, and the outer wall surface of the rotary sleeve is provided with stirring blades. Through the rotatable swivel sleeve of overcoat at the connecting rod to set up stirring vane on swivel sleeve, can change the flow direction of filtration liquid, make can fully alternate between the adjacent filtration liquid, improve the filter effect.
The garbage leachate treatment process comprises the following steps: delivering the landfill leachate into a sedimentation tank for sedimentation treatment to remove most of impurities and sludge, delivering the supernatant liquid at the upper layer into an anaerobic tank for anaerobic treatment, delivering the leachate after anaerobic treatment into an aeration tank for reaction, delivering the leachate into a pretreatment filter for filtration, adsorbing the impurities in the leachate by activated carbon on an inclined activated carbon adsorption layer, and delivering the leachate into a high-pressure permeation type filter tank under the action of a high-pressure pump for filtration of a reverse osmosis membrane; finally, the filtered percolate is discharged.
Claims (2)
1. A membrane method high-pressure permeation type garbage leachate treatment device is characterized in that: comprises a sedimentation tank (1), a biological anaerobic tank (2), an aeration tank (3), a pretreatment filter (4), a high-pressure water pump (5) and a high-pressure permeation type filter tank (6) which are connected in sequence; the high-pressure permeation type filter tank (6) comprises a tank body (601), wherein an upper partition plate (602) is arranged at the upper part in the tank body (601), a group of annular uniformly distributed conical pressurizing holes (603) are formed in the upper partition plate (602), an upper cylindrical permeation membrane group (604) with a hollow structure is arranged below the conical pressurizing holes (603), a middle partition plate (605) is arranged below the upper cylindrical permeation membrane group (604), a central water permeable hole (606) and an annular water permeable groove (607) which are positioned at the inner side and the outer side of the upper cylindrical permeation membrane group (604) are formed in the middle partition plate (605), a central permeation membrane group (608) is arranged below the central water permeable hole (606), an annular permeation membrane group (609) is arranged below the annular water permeable groove (607), and a lower partition plate (610) is arranged below the central permeation membrane group (608) and the annular permeation membrane group (609);
the cross sections of the central water permeable hole (606) and the annular water permeable groove (607) are of trapezoid structures with large upper part and small lower part;
the upper cylindrical permeable membrane group (604) and the central permeable membrane group (608) comprise cylindrical membrane shells, and reverse osmosis membranes are arranged on the cylindrical wall surfaces of the cylindrical membrane shells; the annular permeable membrane group (609) comprises an annular shell, and annular reverse osmosis membranes are arranged on the inner side and the outer side of the annular shell;
the lower separator (610) is provided with a water permeable channel (611) positioned between the central permeable membrane group (608) and the annular permeable membrane group (609) and positioned outside the annular permeable membrane group (609);
the annular water permeable groove (607) and the water permeable channel (611) are respectively provided with a connecting rod (7);
a middle sewage outlet (8) corresponding to the upper cylindrical permeable membrane group (604) is arranged below the middle partition plate (605), and a lower sewage outlet (9) corresponding to the central permeable membrane group (608) and the annular permeable membrane group (609) respectively is arranged below the lower partition plate (610); the middle sewage outlet (8) and the lower sewage outlet (9) are connected with a sewage pool positioned outside the pool body (601) through pipelines; electromagnetic valves are arranged on the middle sewage outlet (8) and the lower sewage outlet (9); a plurality of back flushing ports (10) are also arranged on the side wall surface of the tank body (601), and the back flushing ports (10) are connected with a cleaning pipe and a cleaning pump;
the connecting rod is sleeved with a rotary sleeve, and the outer wall surface of the rotary sleeve is provided with stirring blades.
2. The membrane method high-pressure osmosis type garbage leachate treatment device according to claim 1 is characterized in that: the pretreatment filter (4) comprises an adsorption box body (401), wherein a plurality of inclined active carbon adsorption layers (402) which are distributed up and down are arranged in the adsorption box body (401), a liquid inlet (403) is formed in the upper end of the adsorption box body (401), and a liquid outlet (404) is formed in the lower end of the adsorption box body (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327240.7A CN114644432B (en) | 2022-03-30 | 2022-03-30 | Membrane method high-pressure permeation type garbage leachate treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210327240.7A CN114644432B (en) | 2022-03-30 | 2022-03-30 | Membrane method high-pressure permeation type garbage leachate treatment device |
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| Publication Number | Publication Date |
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| CN114644432A CN114644432A (en) | 2022-06-21 |
| CN114644432B true CN114644432B (en) | 2023-12-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3049086U (en) * | 1997-11-21 | 1998-05-29 | 要子 三浦 | Water purification equipment |
| CN208136052U (en) * | 2018-03-30 | 2018-11-23 | 舟山旺能环保能源有限公司 | Embrane method high-pressure osmosis formula garbage leachate treatment device |
| CN216946652U (en) * | 2022-03-30 | 2022-07-12 | 丽水旺能环保能源有限公司 | Membrane method high-pressure permeation type garbage leachate treatment device |
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2022
- 2022-03-30 CN CN202210327240.7A patent/CN114644432B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3049086U (en) * | 1997-11-21 | 1998-05-29 | 要子 三浦 | Water purification equipment |
| CN208136052U (en) * | 2018-03-30 | 2018-11-23 | 舟山旺能环保能源有限公司 | Embrane method high-pressure osmosis formula garbage leachate treatment device |
| CN216946652U (en) * | 2022-03-30 | 2022-07-12 | 丽水旺能环保能源有限公司 | Membrane method high-pressure permeation type garbage leachate treatment device |
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| CN114644432A (en) | 2022-06-21 |
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