CN103626298B - Submerged vegetation and floatingleaved vegetation mixed type current wetland method for purifying water - Google Patents
Submerged vegetation and floatingleaved vegetation mixed type current wetland method for purifying water Download PDFInfo
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- CN103626298B CN103626298B CN201210306011.3A CN201210306011A CN103626298B CN 103626298 B CN103626298 B CN 103626298B CN 201210306011 A CN201210306011 A CN 201210306011A CN 103626298 B CN103626298 B CN 103626298B
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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
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Abstract
The invention discloses a kind of submerged vegetation and floatingleaved vegetation mixed type current wetland method for purifying water, the method utilizes coral sand, floatingleaved vegetation and submerged vegetation to build the ecological purification system of efficient stable, comprising: pump sump, chinampa growing area, under water turf growing area and coral sand treating pond etc.When purifying water, first sewage is introduced pump sump, tentatively filter with the screen cloth in pump sump; Alternately purification is carried out in the interlocking area entering chinampa growing area and turf growing area under water again; Finally enter the cleaned filter tank of coral sand, after coral sand filtration, purification, flow out through outlet sump.In the process, utilize aerating system oxygenation, with the decontamination effect improving of enhanced system to water quality.The method utilizes physics, biology, ecological synergy, eliminates water pollution by the ecological purification system of an efficient stable, has wastewater treatment efficiency and efficiency is high, stability is high, cost is low, be convenient to the advantages such as artificial regulatory.
Description
Technical field
The present invention relates to advanced treatment of wastewater, specifically relate to a kind of submerged vegetation and floatingleaved vegetation mixed type current wetland method for purifying water.
Background technology
Current wetland is as a kind for the treatment of technology of water pollution control, because its investment is less, energy consumption and working cost is low, running maintenance simple, to wastewater purifying efficiency better and sewage disposal and the feature such as environmental ecology construction combines can be made, utilize in the developed country such as America and Europe comparatively wide, be also particularly suitable at present that I crosses land resources and water resources extremely lacks, water pollutions is serious, wastewater treatment rate is lower national conditions.Its basic structure comprises a body, matrix and the basic structure such as hygrophilous vegetation, water inlet system, ultimate principle mainly utilize microorganism in system nitrated/denitrification, the absorption of matrix and hygrophyte (being mainly emergent in traditional current wetland) absorb the pollution substances such as the nitrogen phosphorus in water body such as removal such as the effect of grade.But, due to the defect in traditional current wetland configured, there is shortcomings: 1) hydraulic load is little in this water quality purification method; 2) easy anoxic, nitrated/denitrification environment is not enough; 3) bed body matrix easily blocks.The method that these reasons cause traditional current wetland to purify water is low to the pollutants removal rate such as nitrogen, phosphorus in sewage, and effects of purification quality is not good, system work-ing life short (general 2-5).
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of submerged vegetation and floatingleaved vegetation mixed type current wetland water quality evolvement method, which overcome and utilize in traditional wetland evolution water process that hydraulic load is little, removal efficiency of nitrogen and phosphorus is low, matrix easily blocks, shortcoming that system work-ing life is low, improve effects of purification quality and efficiency.
For solving the problems of the technologies described above, submerged vegetation of the present invention and floatingleaved vegetation mixed type current wetland water quality evolvement method, comprise the following steps:
1) sewage is introduced pump sump through influent weir and water inlet pipe, tentatively filter with the screen cloth in pump sump, dispose the rubbish in water;
2) sewage after preliminary filtration enters the interlocking area of chinampa growing area and turf growing area under water via bottom body of wall of boxing out, chinampa growing area and under water turf growing area carry out replacing and purify;
3) finally enter the cleaned filter tank of coral sand, after coral sand filtration, purification, the rising pipe through outlet sump flows out.
Submerged vegetation of the present invention and floatingleaved vegetation mixed type current wetland method for purifying water, utilize sedimentation, absorption/absorption, filtration, decomposition, ion-exchange, nitrification and denitrification effect, Nutrient Absorption, vital metabolic activity the synergy of physics, chemistry and the biological and ecological such as conversion to eliminate water pollution, not only increase wastewater treatment efficiency, effectively eliminate the pollutents such as the nitrogen phosphorus in sewage, and processing efficiency is higher, operate also more convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the subsurface flow wetland system of the embodiment of the present invention.
Fig. 2 is the cross-sectional view of the subsurface flow wetland system of the embodiment of the present invention.
Fig. 3 is the bottom undercurrent curtain wall structure schematic diagram of the subsurface flow wetland system of the embodiment of the present invention.
Fig. 4 is the water body spillwag chute curtain wall structure schematic diagram of the subsurface flow wetland system of the embodiment of the present invention.
Fig. 5 is the vertical section structure schematic diagram in the cleaned filter tank of coral sand of the subsurface flow wetland system of the embodiment of the present invention.
Embodiment
Understand more specifically for having technology contents of the present invention, feature and effect, now in conjunction with illustrated embodiment, details are as follows:
The submerged vegetation of the present embodiment and floatingleaved vegetation mixed type subsurface flow wetland system, overall length 100.6 meters, beam overall 24.84 meters, area is 2498.904m altogether
2(comprising building wall area), dark 1.3 meters.This mixed type subsurface flow wetland system is brick wall cement pit structure, and width of wall body unification is 28 centimetres, and it specifically forms structure and refers to shown in Fig. 1,2, comprising:
1. pump sump
Long 20.56 meters of pump sump, wide 5 meters (comprising surrounding width of wall body), dark 1.3 meters, primarily of influent weir, water inlet pipe, twice wide-meshed screen
twice fine screen mesh
with bottom box out water outlet cross wall (Fig. 3) and surrounding body of wall composition.
Whole pump sump is by 4 road screen clothes (mesh widths is 4.44 meters) even partition.Twice wide-meshed screen front, the 1st road scalping net height 1.3 meters, comprising bottom box out (bottom cement brick body advance expenditure, long, height is 20 centimetres; Long 30 centimetres of hole, high 20 centimetres), be convenient to water and flow out from bottom; 2nd road scalping net height 1 meter, bottom contacts with at the bottom of pond, and current can flow out from net top.Twice fine screen mesh is rear, and the 3rd road dusting cover net height 1.3 meters, comprises bottom advance expenditure and box out (advance expenditure and hole gauge lattice are with the 1st road wide-meshed screen), be convenient to water and flow out from bottom; 4th road dusting cover net height 0.8 meter, bottom contacts with at the bottom of pond, and water can flow out from top.Last is wide 5 meters, high 1.3 meters water outlet cross walls together, and the body of wall of water outlet cross wall wide is 28 centimetres, boxes out comprising bottom, long 30 centimetres of hole, and hole is high 20 centimetres, 20 centimetres, interval between Kong Yukong, is convenient to water and flows into floatingleaved plant growing area from bottom.
2. chinampa growing area
Chinampa growing area area is 830m
2, for planting floatingleaved plant, wherein, Ptilota plumosa accounts for 60%, and large algae accounts for 20%, and the red water chestnut in Taihu Lake accounts for 20%.Ptilota plumosa and large algae have high durability against pollution and purification efficiency, fast growth, the nutritive substance such as nitrogen, phosphorus in sewage can be absorbed fast, root system is longer, and (root system of Ptilota plumosa can reach more than 50 centimetres, the root system of large algae can reach more than 1 meter), the effect increasing area under water, promote the attachment of microorganism and growth, reach bio-film colonization can be played, promote the apposition growth of nitrated/denitrifying bacterium, strengthen the removal effect to nitrogen, phosphorus nutrition material in water.Simultaneously, Ptilota plumosa and large algae also have salvaging, advantage easy to maintenance, once because sewage nutritive substance is too high, biomass is larger, rapid artificially can skim part Ptilota plumosa and large algae and not affect the stability of the chinampa plantation ecosystem, therefore, the effect of removing nutritive substance can be played, can play again and safeguard subsurface flow wetland system, improve the effect of wet land system permeability and purification efficiency.Red water chestnut also has similar effect in Taihu Lake, and the red water chestnut fast growth in Taihu Lake, fishery products can be formed and remove wetland, reach the multipurposes such as production, purification, maintenance.
Chinampa growing area is divided into and is slit into 8 regions, comprises 7 areas identical
shape region and 1
(adjacent with pump sump, area 144.2m
2) shape region.Wherein, cross wall (Fig. 4, wide 5 meters) the bottom not advance expenditure that current flow into turf growing area under water from chinampa growing area is boxed out, and is solid wall, but reduces by 5 centimetres highly successively.From
(near pump sump) starts in shape region, the height entering the cross wall of turf growing area under water from chinampa growing area is followed successively by 1.25 meters, 1.20 meters, 1.15 meters, 1.10 meters, 1.05 meters, 1.00 meters, 0.95 meter and 0.90 meter with water (flow) direction, and current flow into turf growing area under water from cross wall top; And be 1.3 meters from cross wall (the wide 5 meters) height of the chinampa of turf growing area inflow under water growing area, bottom advance expenditure is boxed out (bottom cement brick body advance expenditure, long, height is 20 centimetres, the specification in hole is long 30 centimetres, wide 20 centimetres, between hole 20 centimetres, interval), be convenient to current from inflow chinampa, bottom growing area.
3. turf growing area under water
The area of turf growing area (algivorous insect+turf under water) 865m altogether under water
2, wherein, the four seasons, evergreen turf under water accounted for 50%, and improvement thorn eel grass skin accounts for 50%.This district be divided into 8 identical
shape region and 1
shape region.Wherein
row region is last near coral sand treating pond region, the cross wall of its current inflow direction is 1.3 meters, box out in bottom, the specification in hole is long 30 centimetres, and wide 20 centimetres, between hole 20 centimetres, interval, be convenient to water flow into from bottom, and the cross wall that current outflow enters coral sand district is 0.85 meter of solid wall, do not box out in bottom, and current flow into the cleaned filter tank of coral sand from cross wall top.
4. the cleaned filter tank of coral sand and outlet sump
This region is 60m altogether
2(not comprising wall area), be divided into the cleaned filter tank of coral sand and outlet sump two portions, the coral sand of the wherein inner raising 0.6 meter in the cleaned filter tank of coral sand.Current certainly
shape under water turf and algivorous insect district flows into the cleaned filter tank of coral sand through the cross wall top of high 0.85 meter.The body of wall that current flow out the cross wall in direction is high 1.3 meters, and bottom advance expenditure is boxed out, and the specification in hole is long 30 centimetres, and wide 20 centimetres, between hole 20 centimetres, interval, is convenient to water from inflow exhalant region, bottom.Water flows out from outlet sump through rising pipe after coral sand purification filtering.
5. underwater aeration device
Underwater aeration device is pvc aerated conduit, has 4 noiselessness air pumps, every platform 480w.Pvc pipeline is laid on bottom wetland with Fig. 1 water (flow) direction, plays aeration oxygen replenishing strengthening effects of purification quality.
The concrete methods of realizing that application said system purifies water is as follows:
First, sewage enters pump sump through influent weir and water inlet pipe, through the preliminary filtration of pump sump twice wide-meshed screen and twice fine screen mesh, disposes the rubbish such as the foreign material in water.Then body of wall of boxing out through bottom enters the interlocking area of chinampa growing area and turf growing area under water, water first flows into turf growing area under water from the cross wall top progressively reduced, chinampa growing area is flowed to again from turf growing area under water, like this, sewage after the alternately purification through chinampa growing area and turf growing area under water, finally through be highly the entity cross wall of 0.85m (namely
the cross wall that type pasture and water turf growing area is adjacent with coral sand filtration, purification pond) top enters the cleaned filter tank of coral sand, flows out through the rising pipe of outlet sump after coral sand filtration, purification.In the process, utilize 4 noiselessness aerator pump aeration oxygen replenishings of underwater aeration device, enhancing effects of purification quality can be assisted.
Claims (5)
1. submerged vegetation and a floatingleaved vegetation mixed type current wetland method for purifying water, is characterized in that, comprise the following steps:
1) sewage is introduced pump sump through influent weir and water inlet pipe, tentatively filter with the screen cloth in pump sump, dispose the rubbish in water;
2) sewage after preliminary filtration enters the interlocking area of chinampa growing area and turf growing area under water via bottom body of wall of boxing out, chinampa growing area and under water turf growing area carry out replacing and purify; Water first flows into turf growing area under water from the cross wall top progressively reduced, then flows to chinampa growing area from turf growing area under water; Chinampa growing area kind is implanted with Ptilota plumosa, large Piao and the red water chestnut in Taihu Lake;
3) finally enter the cleaned filter tank of coral sand, after coral sand filtration, purification, the rising pipe through outlet sump flows out.
2. submerged vegetation according to claim 1 and floatingleaved vegetation mixed type current wetland method for purifying water, is characterized in that, step 1) first filter with wide-meshed screen, then filter with fine screen mesh.
3. submerged vegetation according to claim 2 and floatingleaved vegetation mixed type current wetland method for purifying water, is characterized in that, the aperture of wide-meshed screen is 30mm, and the aperture of fine screen mesh is 10mm.
4. submerged vegetation according to claim 1 and floatingleaved vegetation mixed type current wetland method for purifying water, is characterized in that, turf growing area kind is implanted with the four seasons evergreen turf under water and improvement thorn eel grass skin under water.
5. submerged vegetation according to claim 1 and floatingleaved vegetation mixed type current wetland method for purifying water, is characterized in that, step 2) in also utilize the multiple stage noiselessness aerator pump aeration of underwater aeration device, auxiliaryly strengthen effects of purification quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306011.3A CN103626298B (en) | 2012-08-24 | 2012-08-24 | Submerged vegetation and floatingleaved vegetation mixed type current wetland method for purifying water |
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| CN201210306011.3A CN103626298B (en) | 2012-08-24 | 2012-08-24 | Submerged vegetation and floatingleaved vegetation mixed type current wetland method for purifying water |
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| CN103626298A CN103626298A (en) | 2014-03-12 |
| CN103626298B true CN103626298B (en) | 2015-12-02 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010068A (en) * | 2011-01-13 | 2011-04-13 | 郑州大学 | Double-layered composite artificial floating island |
| CN202116380U (en) * | 2011-06-08 | 2012-01-18 | 马鞍山市黄河水处理工程有限公司 | Plant floating island man-made wetland device capable of effectively removing organic nitrogen |
| CN102329001A (en) * | 2011-06-22 | 2012-01-25 | 上海太和水环境科技发展有限公司 | Modular waterweed planting method and waterweed culture module in underwater ecological restoration |
-
2012
- 2012-08-24 CN CN201210306011.3A patent/CN103626298B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010068A (en) * | 2011-01-13 | 2011-04-13 | 郑州大学 | Double-layered composite artificial floating island |
| CN202116380U (en) * | 2011-06-08 | 2012-01-18 | 马鞍山市黄河水处理工程有限公司 | Plant floating island man-made wetland device capable of effectively removing organic nitrogen |
| CN102329001A (en) * | 2011-06-22 | 2012-01-25 | 上海太和水环境科技发展有限公司 | Modular waterweed planting method and waterweed culture module in underwater ecological restoration |
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Inventor after: He Wenhui Inventor after: Liu Yuchao Inventor before: He Wenhui |
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Address after: 201501 room 1957, 38 lane, Cao Li Road, Fengjing town, Jinshan District, Shanghai, 1957 Patentee after: Shanghai Taihe water environment technology development Limited by Share Ltd Address before: 202162 Shanghai Chongming County Shanghai County Chongming County, Chen Jia town, 199 Road 4, 427 building (Shanghai Yu an economic district) Patentee before: Shanghai Taihe Water Ecological Technology Co., Ltd. |
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Address after: 201501 room 1957, 38 lane, Cao Li Road, Fengjing town, Jinshan District, Shanghai, 1957 Patentee after: Shanghai Taihe Water Technology Development Co.,Ltd. Address before: 201501 room 1957, 38 lane, Cao Li Road, Fengjing town, Jinshan District, Shanghai, 1957 Patentee before: SHANGHAI TAIHE WATER ENVIRONMENT TECHNOLOGY DEVELOPMENT Co.,Ltd. |