CN201648120U - Vertical flow-horizontal underflow combined artificial wetland - Google Patents
Vertical flow-horizontal underflow combined artificial wetland Download PDFInfo
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- CN201648120U CN201648120U CN2010201208875U CN201020120887U CN201648120U CN 201648120 U CN201648120 U CN 201648120U CN 2010201208875 U CN2010201208875 U CN 2010201208875U CN 201020120887 U CN201020120887 U CN 201020120887U CN 201648120 U CN201648120 U CN 201648120U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model discloses a vertical flow-horizontal underflow combined artificial wetland. A vertical flow wetland pool is arranged at the upper part, a horizontal underflow wetland pool is arranged at the lower part, and water processed by the vertical flow wetland pool flows to the horizontal underflow wetland pool by a backflow pool; a substrate added in the vertical flow wetland pool is a rough sand layer, a manual mixing layer and gravel areas sequentially from top to bottom, wherein the manual mixing layer is planted with shallow root system plants, the upper part of the vertical flow wetland pool is provided with a water distributing pipe, and the bottom thereof is provided with a sluice channel, the upper part of the sluice channel is provided with a water transmitting plate, and the lower part thereof is provided with a waterproof layer; two sides of the horizontal underflow wetland are provided with the gravel areas, and the middle thereof is provided with a substrate area which is provided with the rough sand layer, the manual mixing layer and the rough sand layer sequentially from top to bottom; a flow guiding baffle is arranged for dividing the substrate area into snakelike water flow channels; and the manual mixing layer is planted with the shallow root system plants, the bottom of the pool is provided with the sluice channel, the bottom of which is provided with the water flow layer, and the top of the sluice channel is provided with the water transmitting plate at a water outlet part of the gravel area. The vertical flow-horizontal underflow combined artificial wetland has high sewage purification efficiency and small occupied area.
Description
Technical field
The utility model relates to technical field of sewage, especially a kind of compound worker's wetland of vertical current-horizontal drowned flow that is used for sewage disposal.
Background technology
China's sewage purification and reuse rate is very low at present, is many-sided though cause the reason of this situation, and major cause still is the sewage purification and reuse technology, can't adapt to the requirement of the sewage resource marketization.Though the past, traditional bio-aeration pool technology can be removed the organism in the sewage effectively, lower to the removal ability of nitrogen phosphorus, effluent quality can not reach middle water reuse standard; Though the membrane Bio-reactor Technology effluent quality is higher, the investment working cost is higher, has limited this broad application, and other chemical physics treatment technologies also all exist investment working cost height, effluent quality instability and secondary pollution problems.Have high-level efficiency, low investment, low running expense, the low characteristics of keeping technology at the constructed wetland waste water treatment technology that is moving, in worldwide, receive concern more and more widely.Existing constructed wetland waste water treatment technology can be divided into surperficial streaming, vertical streaming and undercurrent type substantially.The surface current artificial wetland is primary artificial swamp, and similar with natural wetland, the depth of water is more shallow, and generally about 0.2-0.4 rice, waste water is from wetland surface current mistake.Such artificial swamp floor space is big, and hydraulic loading rate is little, and soil removability is limited, and the oxygen transmittability is limited, is subjected to weather effect very big, easily multiplies mosquitos and flies summer.Also there is the phenomenon of multiplying mosquitos and flies summer the wet artificially of vertical current for organic removal scarce capacity.Underflow type artificial wet land oxygen supply deficiency, nitrification is bad.People have proposed composite artificial wetland sewage treatment method in recent years, and this method is the advantage of surface current artificial wetland, horizontal drowned flow artificial wet land and vertical current constructed wetland comprehensively, have certain treatment effect.But it is low also to exist the unit surface wastewater purification efficiency, can not be good utilize the damming of matrix, filtration, adsorption, and easily stop up in the vertical current working process, problem such as horizontal drowned flow oxygen compensation rate is less than normal, and floor space is bigger.
The utility model content
The technical problems to be solved in the utility model provides a kind of unit surface wastewater purification efficiency height, the competent vertical current of system's oxygen supply amount-horizontal drowned flow combined artificial wetland.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of vertical current-horizontal drowned flow combined artificial wetland, its gordian technique is that the vertical-flow wetland pond is last, horizontal drowned flow wetland pond is following, and the water of handling through the vertical-flow wetland pond flows into horizontal drowned flow wetland pond by the backflow pool that is provided with; The matrix of adding in the vertical-flow wetland pond is followed successively by coarse sands layer, artificial mixolimnion, gravel district from top to bottom, the artificial mixolimnion shallow root system plant of having planted, top, vertical-flow wetland pond is provided with water distributor, is provided with dredging flow groove at the bottom of the pond, dredging flow groove top is porous disc, and the dredging flow groove bottom is a waterproof layer; Both sides, horizontal drowned flow wetland pond are the gravel district, the centre is the matrix district, the matrix district is followed successively by coarse sands layer, artificial mixolimnion, coarse sands layer from top to bottom, the diaphragm that is provided with is distinguished matrix and is slit into snakelike water stream channel, artificial mixolimnion kind is implanted with dark root system plant, the bottom, pond is provided with dredging flow groove, and the dredging flow groove bottom land is provided with waterproof layer, and dredging flow groove groove top is positioned at position, water outlet place gravel district and is provided with porous disc.
Be provided with sump pump in the above-mentioned backflow pool, sump pump is communicated with the gravel district in horizontal drowned flow wetland pond by transfer lime; Be provided with leak-off pipe between vertical-flow wetland pond and the backflow pool.
Preferably, the waterproof layer in above-mentioned vertical-flow wetland pond is the plastics material, presets the hole that the cane that can hold dark root system plant passes through on the waterproof layer, and the inboard, hole is filled with and prevents the sealer that leaks.
As further improvement, the bottom, matrix district in above-mentioned horizontal drowned flow wetland pond is provided with micropore aeration pipe, and micropore aeration pipe is connected with the underwater jet aeration machine, and the underwater jet aeration machine is arranged in the backflow pool.
Preferably, above-mentioned artificial mixolimnion is mixed by vermiculite, zeolite, cinder, and artificial mixolimnion thickness is at least 20cm, above loose below closely knit.
Preferably, the coarse sands layer grain diameter in above-mentioned vertical-flow wetland pond and horizontal drowned flow artificial wet land pond is 2-7mm, the gravel district gravel particle diameter of bottom, vertical-flow wetland pond is 4-8cm, gravel district one side in horizontal drowned flow artificial wet land pond is entry place, one side is water outlet place, entry place gravel district gravel particle diameter is 8-15mm, and water outlet place gravel district gravel particle diameter is 2-4cm.
Adopt the beneficial effect that technique scheme produced to be: integrated use of the present invention two kinds of artificial swamps, not only can efficiently remove the inorganic eutrophication element in the sewage, can also effectively divide desorption to organism in the sewage and heavy metal contaminants, multi-direction repeatedly the flowing of sewage purifies, the clarification time abundance, can better utilize effects such as the damming of matrix, filtration, absorption, improved purification efficiency, and vertical current is difficult for stopping up, owing to adopted the vertical composite structure of last following formula, effectively reduced floor space; Further improve and carry out little aeration by micropore aeration pipe to the oxygen supply of horizontal drowned flow pond by the underwater jet aeration machine, effective increase system oxygen level, improve the reaction purification efficiency of root system of plant and microorganism species, the efficient processing absorbs heavy metal contaminants, decomposing organic pollutant.Behind the sewage process current wetland pond, organic pollutant and heavy metal contaminants can reduce in a large number, and inorganic pollutant also can further reduce.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the synoptic diagram in horizontal drowned flow wetland pond.
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the synoptic diagram in vertical-flow wetland pond;
Fig. 5 is the synoptic diagram of the waterproof layer in vertical-flow wetland pond;
Fig. 6 is the structural representation of water distributor;
Fig. 7 is the structural representation of micropore aeration pipe;
Wherein, 1, terrace face; 2, water distributor; 3, shallow root system plant; 4, dark root system plant; 5, the artificial mixolimnion in vertical current constructed wetland pond; 6, the gravel bed in vertical current constructed wetland pond; 7, coarse sands layer; 8, the coarse sands layer in vertical current constructed wetland pond; 9, the dredging flow groove in vertical current constructed wetland pond; 10, water discharge pipe; 11, return line; 12, backflow pool; 13, sump pump; 14, water shoot; 15, underwater jet aeration machine; 16, micropore aeration pipe; 17, entry place gravel district; 18, artificial mixolimnion; 19, the waterproof layer in vertical current constructed wetland pond; 20, waterproof layer; 21, coarse sands layer; 22, diaphragm; 23, waterproof layer; 24, dredging flow groove; 25, vertical-flow wetland pond; 26, horizontal drowned flow wetland pond; 27, porous disc; 28, preset the hole, cave; 29, flexible plastic water tight packing; 30, water outlet place gravel district.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Referring to accompanying drawing 1, pending sewage is earlier through pre-treatment, preconditioning technique adopts prior art, can " vertical current-surface current combined artificial wetland be handled sanitary sewage method or publication number CN1887747A patent documents such as " artificial marsh sewage treating methods ", and the pre-processing device of sewage is the conventional equipment of water treatment field referring to publication number CN1597562A " system and method that the combinatorial artificial wetland of sewage is handled " or publication number CN1686868A.Pre-treatment reduces the scum silica frost that subsequent disposal produces so that filter the floating matter and the suspended substance of bulk, guarantees the normal operation of sewage disposal device, flows into vertical-flow wetland pond 25 by sump pump through water distributor 2 through pretreated sewage, by valve controlling flow speed.Sewage evenly flows into vertical-flow wetland pond 25, pass through coarse sands layer 8 vertically downward, artificial mixolimnion 5, gravel bed 6 and shallow root system enriching plant 4, sewage vertically permeates a part of heavy metal contaminants of absorption by matrix layer by layer, the nitrated ability emphasis that grows in root system of plant in the matrix and microorganism species is removed nitrogen Ammonia inorganics, sharply reduce through suspended particulate content in the sewage after the processing of vertical-flow wetland pond, the porous disc 27 that passes through sluicing groove 9 upper walls in vertical-flow wetland pond 25 at last imports in the vertical-flow wetland pond sluicing grooves 9, flows into backflow pools 12 through water discharge pipe 10.Be provided with sump pump 13, underwater jet aeration machine 15 in the backflow pool 12.Sewage is through after going into 25 processing of vertical-flow wetland pond, flow into backflow pool 12 through water discharge pipe 10, sewage in the backflow pool 12 feeds back go back to the horizontal drowned flow wetland pond 26 of 25 belows, vertical-flow wetland pond by sump pump 13 and return line 11, go into speed with valve controlling flow, horizontal drowned flow wetland pond is located at below the ground surface, helps Winter protection.Underwater jet aeration machine 15 is 26 oxygen supplys of horizontal drowned flow wetland pond by micropore aeration pipe 16.Sewage at first passes through entry place gravel district 17, then under the guiding of water guide dividing plate 22, in horizontal drowned flow wetland pond 26, carry out flowing of vertical and horizontal direction, can increase the evolution time, improve purification efficiency, enter water outlet place gravel district 30 again at tail end, the porous disc below gravel district 30 imports horizontal drowned flow wetland pond sluicing groove 24, discharged by water discharge pipe 14, the water of discharge can recycle.Behind the sewage process horizontal drowned flow wetland pond, organic pollutant and heavy metal contaminants can reduce in a large number, and inorganic pollutant also can further reduce.
Referring to accompanying drawing 2, accompanying drawing 3, both sides in the horizontal drowned flow wetland pond are the gravel district, wherein a side is entry place, and opposite side is water outlet place, and the zone that is surrounded by the water guide dividing plate is not filled up in water outlet place gravel district, and only filled the part gravel, the part gravel is added in water outlet place can effectively prevent the system obstruction, is convenient to water and better discharges, and 30 belows, water outlet place gravel district are provided with porous disc, water flows to dredging flow groove 24 from here, and dredging flow groove 24 tops are removed the porous disc position waterproof layer 23 is installed.Matrix is made up of coarse sands layer 7, artificial mixolimnion 18, coarse sands layer 21 from bottom to top, and artificial mixolimnion 18 is mixed by zeolite, vermiculite, cinder and forms.The diaphragm 22 that is provided with makes current form similar snakelike passage, can increase sewage treatment effect.The multiple enriching plant of dark root system plant 4 main configurations herein, as reed, Stenocalyx micheli, calamus, Scirpus tabernaemontani or the like, the integrated configuration enriching plant is by the removal purpose of all kinds of enriching plants for heavy metal contaminants in the powerful absorptive function realization sewage of heavy metal contaminants.In horizontal drowned flow wetland pond, can form plant---the micropopulation ecosystem, a large amount of superior microorganism groups can appear in matrix and root system, rely on microorganism species further decomposing organic pollutant and heavy metal contaminants.Be laid with matrix and micropore aeration pipe 16 in the horizontal drowned flow wetland pond, micropore aeration pipe 16 is mesh structural porous PVC breather line, carries out little aeration by micropore aeration pipe 16 to the oxygen supply of horizontal drowned flow layer by underwater jet aeration machine 15.The plant translocation that mainly relies on horizontal drowned flow wetland commonly used realizes vertical oxygen compensation, compensation rate is little, vertical fluid layer itself can increase the vertical infiltration capacity of oxygen in the utility model, utilize backflow pool and little aerating apparatus can more effectively increase system's oxygen level again, improve the reaction purification efficiency of root system of plant and microorganism species, the efficient processing absorbs heavy metal contaminants, decomposing organic pollutant.Behind the sewage process current wetland pond, organic pollutant and heavy metal contaminants can reduce in a large number, and inorganic pollutant also can further reduce.
Referring to accompanying drawing 4, the shallow root system plant 3 of having planted in the vertical-flow wetland pond 25, this plant has inrichment, the vertical-flow wetland pond is because of on the face of land, so the plant of selecting for use is based on the shallow root system plant, the inorganic pollutant processing power is strong, has landscape effect simultaneously concurrently, as Medulla Junci, water lily, Spiked Loosestrife, floral leaf Canna generalis Bailey etc.Sewage evenly flows into vertical-flow wetland pond 25 through water distributor 2, pass through coarse sands layer 8, artificial mixolimnion 5, gravel bed 6 vertically downward, sewage vertically permeates a part of heavy metal contaminants of absorption by matrix layer by layer, the nitrated ability emphasis that grows in root system of plant in the matrix and microorganism species is removed nitrogen Ammonia inorganics, sharply reduce through suspended particulate content in the sewage after the processing of vertical-flow wetland pond, porous disc 27 by vertical-flow wetland pond dredging flow groove 9 upper walls imports the sluicing groove at last, flows into backflow pool 12 through water discharge pipe 10.The dredging flow groove bottom is provided with waterproof layer 19, for the water that prevents from handling flows directly into horizontal drowned flow wetland pond, simultaneously in order to guarantee that plant grows normally, should lay flexible plastic water tight packing 29 between hole, cave 28 and plant haulm presetting, as plastic cement etc., not only prevent the circulation of sewage string pond, also can guarantee plant normal growth as far as possible, do not influence efficient.What porous disc directly contacted is the gravel of big particle diameter, is difficult for stopping up, and does not need special processing.
Referring to accompanying drawing 6, water distributor 2 is provided with water distribution and is responsible for 2-1 and water distribution branch pipe 2-2 for being similar to the water distributor of " king " font.Referring to accompanying drawing 7, micropore aeration pipe is preferably the porous PVC aeration tube, and its shape also is similar to " king " font.
Referring to accompanying drawing 5, the waterproof layer of vertical-flow wetland is rubber or plastics material through special processing.Presetting the hole passes through dark root system plant haulm.
The utility model not only can efficiently be removed the inorganic eutrophication element of sewage, can also carry out effectively fully absorption to organism in the sewage and heavy metal contaminants, and the unit surface wastewater purification efficiency improves.
To the above-mentioned explanation of disclosed embodiment, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. vertical current-horizontal drowned flow combined artificial wetland, it is characterized in that: vertical-flow wetland pond (25) are last, horizontal drowned flow wetland pond (26) is following, and the water of handling through vertical-flow wetland pond (25) flows into horizontal drowned flow wetland pond (26) by the backflow pool (12) that is provided with; The matrix of adding in the vertical-flow wetland pond (25) is followed successively by coarse sands layer (8), artificial mixolimnion (5), gravel district (6) from top to bottom, artificial mixolimnion (5) the shallow root system plant (3) of having planted, top, vertical-flow wetland pond (25) is provided with water distributor (2), be provided with dredging flow groove (9) at the bottom of the pond, dredging flow groove (9) top is porous disc (27), and dredging flow groove (9) bottom is waterproof layer (19); Both sides, horizontal drowned flow wetland pond are gravel district (17,30), the centre is the matrix district, the matrix district is followed successively by coarse sands layer (7), artificial mixolimnion (18), coarse sands layer (21) from top to bottom, the diaphragm (22) that is provided with is distinguished matrix and is slit into snakelike water stream channel, artificial mixolimnion (18) is planted and is implanted with dark root system plant (4), the bottom, pond is provided with dredging flow groove (23), and dredging flow groove (23) bottom land is provided with waterproof layer (23), and the water outlet position that dredging flow groove groove top is positioned at the gravel district is provided with porous disc.
2. vertical current according to claim 1-horizontal drowned flow combined artificial wetland is characterized in that: be provided with sump pump (13) in the described backflow pool (12), sump pump (13) is communicated with the gravel district (10) in horizontal drowned flow wetland pond (26) by transfer lime (11); Be provided with leak-off pipe (10) between vertical-flow wetland pond and the backflow pool.
3. vertical current according to claim 1-horizontal drowned flow combined artificial wetland, it is characterized in that: the waterproof layer (19) in described vertical-flow wetland pond (25) is the plastics material, preset the hole that the cane that can hold dark root system plant passes through on the waterproof layer (19), the inboard, hole is filled with and prevents the sealer that leaks.
4. vertical current according to claim 1-horizontal drowned flow combined artificial wetland, it is characterized in that: the bottom, matrix district in described horizontal drowned flow wetland pond (26) is provided with micropore aeration pipe (16), micropore aeration pipe (16) is connected with underwater jet aeration machine (15), and underwater jet aeration machine (15) is arranged in the backflow pool (12).
5. vertical current according to claim 1-horizontal drowned flow combined artificial wetland, it is characterized in that: the artificial mixolimnion (18) in described horizontal drowned flow wetland pond is mixed by vermiculite, zeolite, cinder, artificial mixolimnion (18) thickness is at least 20cm, above loose below closely knit.
6. vertical current according to claim 1-horizontal drowned flow combined artificial wetland, it is characterized in that: described vertical-flow wetland pond (25) is 2-7mm with the coarse sands layer grain diameter in horizontal drowned flow artificial wet land pond (26), the gravel district gravel particle diameter of bottom, vertical-flow wetland pond is 4-8cm, gravel district one side in described horizontal drowned flow artificial wet land pond is entry place gravel district (17), one side is water outlet place gravel district (30), entry place gravel district gravel particle diameter is 8-15mm, and water outlet place gravel district gravel particle diameter is 2-4cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201208875U CN201648120U (en) | 2010-03-02 | 2010-03-02 | Vertical flow-horizontal underflow combined artificial wetland |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201208875U CN201648120U (en) | 2010-03-02 | 2010-03-02 | Vertical flow-horizontal underflow combined artificial wetland |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633363A (en) * | 2012-03-12 | 2012-08-15 | 浙江省环境保护科学设计研究院 | Sewage treatment system with stacked artificial wetlands |
| CN102874933A (en) * | 2012-10-30 | 2013-01-16 | 周振民 | Composite biological vermiculite modular system for town sewage treatment |
| CN105776742A (en) * | 2016-03-24 | 2016-07-20 | 中国矿业大学 | Constructed wetland system for treating sewage |
| CN108911145A (en) * | 2018-09-06 | 2018-11-30 | 浙江大学 | Mixed flow constructed wetland-biofiltration compound sewage processing unit and its technique |
| CN109607801A (en) * | 2018-12-28 | 2019-04-12 | 武汉紫光能控科技有限公司 | A kind of composite artificial marsh sewage treatment system of denitrogenation dephosphorizing |
| CN112624348A (en) * | 2020-12-16 | 2021-04-09 | 长沙理工大学 | Solar micro-aeration vertical flow artificial wetland for treating dispersed domestic sewage |
-
2010
- 2010-03-02 CN CN2010201208875U patent/CN201648120U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633363A (en) * | 2012-03-12 | 2012-08-15 | 浙江省环境保护科学设计研究院 | Sewage treatment system with stacked artificial wetlands |
| CN102874933A (en) * | 2012-10-30 | 2013-01-16 | 周振民 | Composite biological vermiculite modular system for town sewage treatment |
| CN102874933B (en) * | 2012-10-30 | 2013-09-11 | 周振民 | Composite biological vermiculite modular system for town sewage treatment |
| CN105776742A (en) * | 2016-03-24 | 2016-07-20 | 中国矿业大学 | Constructed wetland system for treating sewage |
| CN105776742B (en) * | 2016-03-24 | 2018-08-14 | 中国矿业大学 | The artificial wet land system of treated sewage |
| CN108911145A (en) * | 2018-09-06 | 2018-11-30 | 浙江大学 | Mixed flow constructed wetland-biofiltration compound sewage processing unit and its technique |
| CN109607801A (en) * | 2018-12-28 | 2019-04-12 | 武汉紫光能控科技有限公司 | A kind of composite artificial marsh sewage treatment system of denitrogenation dephosphorizing |
| CN109607801B (en) * | 2018-12-28 | 2024-04-09 | 中煤紫光湖北环保科技有限公司 | Composite constructed wetland sewage treatment system for denitrification and dephosphorization |
| CN112624348A (en) * | 2020-12-16 | 2021-04-09 | 长沙理工大学 | Solar micro-aeration vertical flow artificial wetland for treating dispersed domestic sewage |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20150302 |
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