CN211419733U - Can realize aeration and back flush constructed wetland - Google Patents
Can realize aeration and back flush constructed wetland Download PDFInfo
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- CN211419733U CN211419733U CN201922346810.3U CN201922346810U CN211419733U CN 211419733 U CN211419733 U CN 211419733U CN 201922346810 U CN201922346810 U CN 201922346810U CN 211419733 U CN211419733 U CN 211419733U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses an artificial wetland capable of realizing aeration and backwashing, wherein a vertical flow wetland filter bed with multistage particle size grading filler comprises multistage particle size grading filler, a water distribution system positioned on a water distribution layer, a water collection system positioned on a water collection layer, an aeration backwashing device positioned at the lower part of the water collection system and wetland plants positioned at the top, and the sewage treatment efficiency of the artificial wetland is effectively improved by optimizing the measures of multistage particle size grading filler, water collection and distribution pipeline arrangement, preferable wetland plants and the like; when the content of pollutants such as organic matters, ammonia nitrogen and the like in the inlet water is high, an aeration pump is started to aerate the wetland system, so that the concentration of dissolved oxygen in the sewage is improved, and the purification of pollutants such as organic matters, ammonia nitrogen and the like is enhanced; when the wetland has the phenomena of unsmooth water flow and blockage, the aeration device and the high-pressure water pump are adopted to carry out air-water combined backwashing on the filter materials, so that the existing problems are solved.
Description
Technical Field
The utility model relates to an artificial wetland technical field, the concrete field is an artificial wetland that can realize aeration and back flush.
Background
The constructed wetland has the advantages of good effluent quality, strong adaptability to load change, convenient operation and maintenance, simple management, low investment and operation cost, obvious ecological environmental benefit, capability of beautifying the environment and the like, and is widely applied to the field of sewage treatment. At present, the artificial wetland system is generally divided into surface flow, horizontal flow subsurface flow and vertical subsurface flow, wherein the vertical subsurface flow artificial wetland is widely used due to the advantages of small occupied area, high treatment efficiency and the like. Research and application show that the content of dissolved oxygen in sewage has a great influence on the treatment effect of the vertical subsurface flow constructed wetland, particularly on the removal of organic matters and ammonia nitrogen. At present, the artificial wetland is not provided with an aeration device generally, the removal rate of organic matters and ammonia nitrogen is generally 10-50%, the treatment capacity is required to be further improved and is generally realized by increasing the area of the wetland, and the construction cost is greatly increased. Meanwhile, the artificial wetland filler is easy to block, and the popularization and the application of the artificial wetland filler are also greatly limited. The conventional method for solving the problem of constructed wetland blockage is to excavate and replace wetland fillers and replant wetland plants, so that the operation and management cost of the constructed wetland is increased, and the normal operation of the constructed wetland is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can realize aeration and back flush constructed wetland to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an artificial wetland capable of realizing aeration and backwashing comprises a water inlet area, a water outlet area, a vertical flow wetland filter bed with multistage grain size grading fillers in the middle, an aeration pump and a high-pressure water pump, wherein the vertical flow wetland filter bed with the multistage grain size grading fillers comprises multistage grain size grading fillers, a water distribution system positioned on a water distribution layer, a water collection system positioned on a water collection layer, an aeration backwashing device positioned at the lower part of the water collection system and wetland plants positioned at the top; the aeration pump and the high-pressure water pump can carry out aeration, oxygenation and back flushing operation on the wetland filter bed.
Preferably, the multistage grain size grading filler comprises a water distribution layer, a filler layer, a transition layer and a water collection layer, the water distribution layer is 150mm thick, gravels with the grain size of 10-15mm are adopted, the filler layer is 700mm thick, coarse sand and zeolite with the grain size of 2-6mm are adopted, the transition layer is 100mm thick, volcanic rocks with the grain size of 10-20mm are adopted, the water collection layer is 250mm thick, and gravels with the grain size of 25-40mm are adopted.
Preferably, the water distribution system comprises a water distribution main pipe and a water distribution branch pipe, wherein the water distribution main pipe is connected with a wetland water inlet pipe, a water inlet pipe control valve is fixedly mounted on the wetland water inlet pipe, the water distribution branch pipe and the water distribution main pipe are arranged in a non-character shape, two sides of the water distribution branch pipe are uniformly perforated at 45 degrees, the aperture is 25mm, and the orifice interval is 400-plus 600 mm.
Preferably, the water collecting system is composed of a water collecting main pipe and water collecting branch pipes, the water collecting main pipe is connected with a wetland water outlet pipe, a wetland water outlet pipe control valve is fixedly mounted on the wetland water outlet pipe, the water collecting branch pipes and the water distributing branch pipes are arranged at intervals and in a staggered mode, the water inlet aperture of the water collecting branch pipe is 25mm, and the hole opening distance is 500 mm.
Preferably, the aeration backwashing device consists of an aeration main pipe, an aeration branch pipe, an aeration head, a backwashing water inlet pipe and a backwashing water outlet pipe, the aeration branch pipes and the water collecting branch pipes are arranged at intervals and in a staggered way, the back flushing water outlet pipes are arranged above the wetland water outlet pipes and are evenly provided with three back flushing water outlet pipes, a back washing water outlet pipe control valve is fixedly arranged on the back washing water outlet pipe, the back washing water inlet pipe is arranged at the bottom of the vertical flow wetland filter bed of the multistage grain size grading filler, the backwashing water inlet pipe is characterized in that a backwashing water inlet pipe control valve is fixedly mounted on the backwashing water inlet pipe, one end of the backwashing water inlet pipe is connected with backwashing branch pipes through a three-way valve, one backwashing branch pipe is fixedly mounted with an aeration air inlet pipe control valve and is fixedly connected with an aeration pump, and the other backwashing branch pipe is fixedly mounted with a backwashing control valve and is fixedly connected with a high-pressure water pump.
Preferably, the wetland plant is preferably selected from reed, cattail, calamus, allium mongolicum and the like, and when the planting density of the reed is 20-30 buds/m 2; the planting density of the cattail is 20-25 plants/m 2; the planting density of the calamus is 20-40 buds/m 2; the planting density of the allium mongolicum regel is 40-50 plants/m 2.
Compared with the prior art, the beneficial effects of the utility model are that: the constructed wetland can realize aeration and back flushing, and the sewage treatment efficiency of the constructed wetland is effectively improved by optimizing the measures of vertical flow wetland filter bed filler grading of multistage particle size grading fillers, water distribution pipeline arrangement, wetland plant optimization and the like; when the content of pollutants such as organic matters, ammonia nitrogen and the like in the inlet water is high, an aeration pump is started to aerate the wetland system, so that the concentration of dissolved oxygen in the sewage is improved, and the purification of pollutants such as organic matters, ammonia nitrogen and the like is enhanced; when the wetland has the phenomena of unsmooth water flow and blockage, the aeration device and the high-pressure water pump are adopted to carry out air-water combined backwashing on the filter materials, so that the problem is solved.
Drawings
FIG. 1 is a schematic view of an arrangement of artificial wet ground wiring lines;
FIG. 2 is a layout diagram of the water collecting pipeline and the aeration backwashing pipeline of the artificial wetland;
fig. 3 is a cross-sectional view of the artificial wetland.
In the figure: 1-wetland water inlet pipe, 2-water inlet pipe control valve, 3-water distribution main pipe, 4-water distribution branch pipe, 5-backwashing water outlet pipe, 6-backwashing water outlet pipe control valve, 7-water collection main pipe, 8-water collection branch pipe, 9-aeration main pipe, 10-aeration branch pipe, 11-aeration head, 12-wetland water outlet pipe, 13-wetland water outlet pipe control valve, 14-aeration pump, 15-high pressure water pump, 16-backwashing water inlet pipe control valve, 17-aeration air inlet pipe control valve, 18-backwashing control valve, 19-wetland plant, 20-backwashing water inlet pipe and 21-backwashing branch pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an artificial wetland capable of realizing aeration and backwashing comprises a water inlet area, a water outlet area, a vertical flow wetland filter bed with multistage grain size grading fillers in the middle, an aeration pump 14 and a high-pressure water pump 15, wherein the vertical flow wetland filter bed with the multistage grain size grading fillers comprises multistage grain size grading fillers, a water distribution system positioned on a water distribution layer, a water collection system positioned on a water collection layer, an aeration backwashing device positioned at the lower part of the water collection system and wetland plants 19 positioned at the top; the aeration pump 14 and the high-pressure water pump 15 can perform aeration, oxygenation and back flushing operation on the wetland filter bed.
Specifically, the multistage grain size grading filler comprises a water distribution layer, a filler layer, a transition layer and a water collection layer, wherein the water distribution layer is 150mm thick, gravels with the grain size of 10-15mm are adopted, the filler layer is 700mm thick, coarse sand and zeolite with the grain size of 2-6mm are adopted, the transition layer is 100mm thick, volcanic rocks with the grain size of 10-20mm are adopted, the water collection layer is 250mm thick, and gravels with the grain size of 25-40mm are adopted.
Particularly, the water distribution system constitute by water distribution stem 3 and water distribution branch pipe 4, wherein water distribution stem 3 links to each other with wetland inlet tube 1, fixed mounting has inlet tube control valve 2 on the wetland inlet tube 1, water distribution branch pipe 4 is "not" word form with water distribution stem 3 and arranges, 4 two sides of water distribution branch pipe are 45 evenly to punch, and the aperture is 25mm, and the orifice interval is 400 and adds 600 mm.
Specifically, the water collecting system comprises a water collecting main pipe 7 and water collecting branch pipes 8, wherein the water collecting main pipe 7 is connected with a wetland water outlet pipe 12, a wetland water outlet pipe control valve 13 is fixedly mounted on the wetland water outlet pipe 12, the water collecting branch pipes 8 and the water distributing branch pipes 4 are arranged at intervals and in a staggered mode, the water inlet aperture of each water collecting branch pipe 8 is 25mm, and the orifice distance is 500 mm.
Specifically, the aeration backwashing device consists of an aeration main pipe 9, an aeration branch pipe 10, an aeration head 11, a backwashing water inlet pipe 20 and a backwashing water outlet pipe 5, the aeration branch pipes 10 and the water collecting branch pipes 8 are arranged in a spaced and staggered manner, the backwashing water outlet pipes 5 are arranged above the wetland water outlet pipe 12 and are evenly provided with three, a back washing water outlet pipe control valve 6 is fixedly arranged on the back washing water outlet pipe 5, the back washing water inlet pipe 20 is arranged at the bottom of the vertical flow wetland filter bed of the multistage grain size grading filler, a backwash water inlet pipe control valve 16 is fixedly installed on the backwash water inlet pipe 20, one end of the backwash water inlet pipe 20 is connected with backwash branch pipes 21 through a three-way valve, one backwash branch pipe 21 is fixedly provided with an aeration air inlet pipe control valve 17 and is fixedly connected with the aeration pump 14, and the other backwash branch pipe 21 is fixedly provided with a backwash control valve 18 and is fixedly connected with the high-pressure water pump 15.
Specifically, the wetland plant 19 is preferably selected from reed, cattail, calamus, allium mongolicum and the like, and when the planting density of the reed is 20-30 buds/m 2; the planting density of the cattail is 20-25 plants/m 2; the planting density of the calamus is 20-40 buds/m 2; the planting density of the allium mongolicum regel is 40-50 plants/m 2.
The working principle is as follows: firstly, a sewage treatment process; secondly, aeration and oxygenation processes; and thirdly, a backwashing process.
When sewage is treated, the wetland water inlet pipe control valve 2 and the wetland water outlet pipe control valve 13 are opened, the backwash water outlet pipe control valve 6, the backwash control valve 18, the backwash water inlet pipe control valve 16 and the aeration air inlet pipe control valve 17 are closed, sewage enters the wetland system from the wetland water inlet pipe 1, sequentially flows through the wetland filter bed from top to bottom through the water distribution main pipe 3 and the water distribution branch pipe 4, is collected by the water collection branch pipe 8 and the water collection main pipe 7, and is discharged out of the wetland system through the wetland water outlet pipe 12.
When aeration and oxygenation are carried out, the back flush control valve 18 and the aeration air inlet pipe control valve 17 are opened, the aeration pump 14 is started in the sewage treatment process, and aeration and oxygenation are carried out on the wetland.
During backwashing, the wetland water inlet pipe control valve 2, the wetland water outlet pipe control valve 13, the aeration air inlet pipe control valve 17 and the aeration pump 14 are closed, and the backwashing water outlet pipe control valve 6, the backwashing water inlet pipe control valve 16 and the high-pressure water pump 15 are opened for water backwashing; then, the high-pressure water pump 15 and the back-flushing water inlet pipe control valve 16 are closed, the aeration air inlet pipe control valve 17 and the aeration pump 14 are opened, and air back flushing is carried out; then, opening a high-pressure water pump 15 and a control valve 16 of a back-flushing water inlet pipe to perform air-water synchronous back flushing; and finally, closing the aeration air inlet pipe control valve, the air inlet pipe control valve 17 and the aeration pump 14, performing water backwashing, and finally finishing the backwashing process.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a constructed wetland that can realize aeration and back flush which characterized in that: the artificial wetland comprises a water inlet area, a water outlet area, a vertical flow wetland filter bed with multistage grain size grading fillers in the middle, an aeration pump (14) and a high-pressure water pump (15), wherein the vertical flow wetland filter bed with the multistage grain size grading fillers comprises multistage grain size grading fillers, a water distribution system positioned on a water distribution layer, a water collection system positioned on a water collection layer, an aeration backwashing device positioned at the lower part of the water collection system and wetland plants (19) positioned at the top;
the aeration pump (14) and the high-pressure water pump (15) can carry out aeration and oxygenation and back flushing operation on the wetland filter bed.
2. The constructed wetland capable of realizing aeration and backwashing according to claim 1, wherein: the multistage grain size grading filler comprises a water distribution layer, a filler layer, a transition layer and a water collection layer, wherein the water distribution layer is 150mm in thickness, gravels with the grain size of 10-15mm are adopted, the filler layer is 700mm in thickness, coarse sand and zeolite with the grain size of 2-6mm are adopted, the transition layer is 100mm in thickness, vesuvianite with the grain size of 10-20mm is adopted, the water collection layer is 250mm in thickness, and gravels with the grain size of 25-40mm are adopted.
3. The constructed wetland capable of realizing aeration and backwashing according to claim 1, wherein: the water distribution system constitute by water distribution main (3) and water distribution branch pipe (4), wherein water distribution main (3) link to each other with wetland inlet tube (1), fixed mounting has inlet tube control valve (2) on wetland inlet tube (1), water distribution branch pipe (4) are "non" word form with water distribution main (3) and arrange, water distribution branch pipe (4) both sides are 45 evenly to punch, and the aperture is 25mm, and the orifice interval is 400 sand-water 600 mm.
4. The constructed wetland capable of realizing aeration and backwashing according to claim 1, wherein: the water collecting system is composed of a water collecting main pipe (7) and water collecting branch pipes (8), the water collecting main pipe (7) is connected with a wetland water outlet pipe (12), the wetland water outlet pipe (12) is fixedly provided with a wetland water outlet pipe control valve (13), the water collecting branch pipes (8) and the water distributing branch pipes (4) are arranged at intervals and in a staggered mode, the water inlet aperture of the water collecting branch pipes (8) is 25mm, and the hole opening interval is 500 mm.
5. The constructed wetland capable of realizing aeration and backwashing according to claim 1, wherein: the aeration backwashing device consists of aeration main pipes (9), aeration branch pipes (10), aeration heads (11), backwashing water inlet pipes (20) and backwashing water outlet pipes (5), wherein the aeration branch pipes (10) and water collecting branch pipes (8) are arranged at intervals and in a staggered manner, the backwashing water outlet pipes (5) are arranged above wetland water outlet pipes (12) and are uniformly provided with three backwashing water outlet pipe control valves (6), the backwashing water outlet pipes (5) are fixedly provided with backwashing water outlet pipe control valves (6), the backwashing water inlet pipes (20) are arranged at the bottoms of vertical flow wetland filter beds of multistage grain size grading fillers, the backwashing water inlet pipes (20) are fixedly provided with backwashing water inlet pipe control valves (16), one end of the backwashing water inlet pipe (20) is connected with the backwashing branch pipes (21) through a three-way valve, one backwashing branch pipe (21) is fixedly provided with an aeration air inlet pipe control valve (17) and is fixedly connected with an aeration pump, a back washing control valve (18) is fixedly arranged on the other back washing branch pipe (21) and is fixedly connected with the high-pressure water pump (15).
6. The constructed wetland capable of realizing aeration and backwashing according to claim 1, wherein: the wetland plant (19) is preferably selected from reed, cattail, calamus, allium mongolicum and the like, and when the planting density of the reed is 20-30 buds/m 2; the planting density of the cattail is 20-25 plants/m 2; the planting density of the calamus is 20-40 buds/m 2; the planting density of the allium mongolicum regel is 40-50 plants/m 2.
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| CN201922346810.3U CN211419733U (en) | 2019-12-24 | 2019-12-24 | Can realize aeration and back flush constructed wetland |
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| CN201922346810.3U CN211419733U (en) | 2019-12-24 | 2019-12-24 | Can realize aeration and back flush constructed wetland |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110543A (en) * | 2020-09-22 | 2020-12-22 | 上海凯悦建设咨询监理有限公司 | Agricultural water ecological treatment structure and construction method thereof |
| CN112374689A (en) * | 2020-10-14 | 2021-02-19 | 吉林建筑大学 | Multiple-action water quality purification device |
| CN114835258A (en) * | 2022-04-14 | 2022-08-02 | 无锡市新都环保科技有限公司 | Renewable uninterrupted artificial wetland system |
| CN114920422A (en) * | 2022-05-17 | 2022-08-19 | 国网湖北省电力有限公司电力科学研究院 | Modularization biological filter |
-
2019
- 2019-12-24 CN CN201922346810.3U patent/CN211419733U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110543A (en) * | 2020-09-22 | 2020-12-22 | 上海凯悦建设咨询监理有限公司 | Agricultural water ecological treatment structure and construction method thereof |
| CN112374689A (en) * | 2020-10-14 | 2021-02-19 | 吉林建筑大学 | Multiple-action water quality purification device |
| CN114835258A (en) * | 2022-04-14 | 2022-08-02 | 无锡市新都环保科技有限公司 | Renewable uninterrupted artificial wetland system |
| CN114920422A (en) * | 2022-05-17 | 2022-08-19 | 国网湖北省电力有限公司电力科学研究院 | Modularization biological filter |
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