CN106495407A - A kind of combined artificial wetland process system for denitrogenation dephosphorizing - Google Patents
A kind of combined artificial wetland process system for denitrogenation dephosphorizing Download PDFInfo
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- CN106495407A CN106495407A CN201611093325.4A CN201611093325A CN106495407A CN 106495407 A CN106495407 A CN 106495407A CN 201611093325 A CN201611093325 A CN 201611093325A CN 106495407 A CN106495407 A CN 106495407A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 241000196324 Embryophyta Species 0.000 claims description 28
- 238000004659 sterilization and disinfection Methods 0.000 claims description 9
- 244000273256 Phragmites communis Species 0.000 claims description 7
- 235000014676 Phragmites communis Nutrition 0.000 claims description 7
- 230000001954 sterilising effect Effects 0.000 claims description 7
- 241000684239 Canna x generalis Species 0.000 claims description 6
- 244000025254 Cannabis sativa Species 0.000 claims description 5
- 241001633663 Iris pseudacorus Species 0.000 claims description 5
- 244000099162 Cyperus alternifolius Species 0.000 claims description 4
- 241000212850 Mugil cephalus Species 0.000 claims description 4
- 239000010865 sewage Substances 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 10
- 229910052698 phosphorus Inorganic materials 0.000 description 10
- 239000011574 phosphorus Substances 0.000 description 10
- 238000004065 wastewater treatment Methods 0.000 description 10
- 238000009954 braiding Methods 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 210000005056 cell body Anatomy 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- UZVHFVZFNXBMQJ-UHFFFAOYSA-N butalbital Chemical compound CC(C)CC1(CC=C)C(=O)NC(=O)NC1=O UZVHFVZFNXBMQJ-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 241000628997 Flos Species 0.000 description 3
- RAFZYSUICBQABU-HMMYKYKNSA-N Phytal Chemical compound CC(C)CCCC(C)CCCC(C)CCC\C(C)=C\C=O RAFZYSUICBQABU-HMMYKYKNSA-N 0.000 description 3
- RAFZYSUICBQABU-QYLFUYDXSA-N Phytal Natural products CC(C)CCC[C@@H](C)CCC[C@@H](C)CCC\C(C)=C/C=O RAFZYSUICBQABU-QYLFUYDXSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- RAFZYSUICBQABU-UHFFFAOYSA-N phytenal Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)=CC=O RAFZYSUICBQABU-UHFFFAOYSA-N 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 206010002660 Anoxia Diseases 0.000 description 2
- 241000976983 Anoxia Species 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 244000202566 Hydrocotyle vulgaris Species 0.000 description 2
- 235000015916 Hydrocotyle vulgaris Nutrition 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- 241000209490 Nymphaea Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000007953 anoxia Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
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- 238000006731 degradation reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- BDKZHNJTLHOSDW-UHFFFAOYSA-N [Na].CC(O)=O Chemical compound [Na].CC(O)=O BDKZHNJTLHOSDW-UHFFFAOYSA-N 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009615 deamination Effects 0.000 description 1
- 238000006481 deamination reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F3/02—Aerobic processes
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
- C02F3/325—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae as symbiotic combination of algae and bacteria
-
- 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 invention discloses a kind of combined artificial wetland process system for denitrogenation dephosphorizing, the multistage composite artificial swamp being serially connected including water inlet pipe, outlet pipe and between water inlet pipe and outlet pipe；Include that per one-level combined artificial wetland the artificial swamp positioned at the aerobe pool of upstream and positioned at downstream, each artificial swamp include several artificial swamp units；In the artificial swamp of first order combined artificial wetland, parallel with one another between each artificial wetland unit, and it is vertical subsurface flow wetland unit；In the artificial swamp of other combined artificial wetlands at different levels in addition to first order combined artificial wetland, artificial swamp includes the group of some artificial swamp unit compositions being serially connected, parallel with one another between each group；Artificial swamp unit in each group had both included horizontal drowned flow artificial wet land unit, included surface current artificial wetland's unit again.The combined artificial wetland process system has efficient denitrogenation dephosphorizing function, can be obviously improved water quality.
Description
Technical field
The present invention relates to a kind of combined artificial wetland process system for denitrogenation dephosphorizing, belongs to wastewater treatment
System.
Background technology
Artificial marsh sewage treatment system is a kind of Novel sewage treatment technology for growing up the eighties in 20th century, with biography
The sewage second-level biochemical process of system is compared, and artificial swamp has that purifying water effect is good, process equipment simple, to load variations adaptability
By force, engineering capital construction and operating cost is low, the notable and achievable waste water reclaiming of ecological environment benefit, be suitable for dispersion or non-point source is dirty
The features such as water process, control in town domestic sewage process, the preventing and treating of town domestic sewage advanced treating, lake pollution, micro- sewage body
The aspects such as reason are increasingly widely applied.
China's artificial swamp sewage treatment project generally adopts single Wetland Type at present.A large amount of engineering practices show,
Free water surface wetland floor space is big, hydraulic load is little, dirt-removing power is not so good as current wetland；Horizontal subsurface flow wetland control is relatively multiple
Miscellaneous, Nitrogen/Phosphorus Removal is not so good as vertical subsurface flow wetland；And vertical subsurface flow wetland is not so good as horizontal drowned flow to the removal effect of Organic substance
Wetland.Compound type constructed wetland system compared with the artificial swamp of single type has had the advantage of three types wetland concurrently, has had
Higher composite wastewater treatment effect.Therefore, the optimum organization of artificial swamp type is the key that its application must be solved
Technical barrier.
China is honest at present pushes into cities and towns construction of wastewater treatment plant and its carries mark retrofit work, efficient compound Manual moist
Ground has certain application prospect in terms of urban wastewater treatment firm advanced treatment of wastewater.At the same time, China is also in one
Individual unprecedented quickly new urbanization epoch and Ecological Civilization Construction critical period, efficient landscape-type composite artificial wetland is in sponge city
City（Or city）Construction in also have broad application prospects.
Content of the invention
Present invention solves the technical problem that being, artificial wetland process type of the prior art is single, combined artificial wetland
Nitrogen/Phosphorus Removal is bad, and the design of combined artificial wetland is unreasonable, there is provided a kind of combined artificial wetland of high-efficient denitrification and dephosphorization
Process system, the problems such as solve poor current artificial swamp landscape effect, low integrated treatment efficiency and unstable effluent quality, especially
Its achieve by《Urban wastewater treatment firm pollutant emission standard》（GB18918-2002）One-level B standard deep purification of tail water
Arrive one-level emission standard A.
The technical scheme is that, there is provided a kind of combined artificial wetland process system for denitrogenation dephosphorizing, including entering
Water pipe, outlet pipe and the multistage composite artificial swamp being serially connected between water inlet pipe and outlet pipe；Water (flow) direction is pressed, per
One-level combined artificial wetland includes the artificial swamp positioned at the aerobe pool of upstream and positioned at downstream, and each artificial swamp is equal
Including several artificial swamp units；Multiple downflow weirs are set in the aerobe pool.
Wherein, in the artificial swamp of first order combined artificial wetland, parallel with one another between each artificial wetland unit, and
For vertical subsurface flow wetland unit；
In the artificial swamp of other combined artificial wetlands at different levels wherein, in addition to first order combined artificial wetland, artificial swamp
Including the group of some artificial swamp unit compositions being serially connected, parallel with one another between each group；In each group
Artificial swamp unit both included horizontal drowned flow artificial wet land unit, again include surface current artificial wetland's unit.
In the present invention, by water (flow) direction, combined artificial wetlands at different levels are respectively designated as the first order, the second level, the third level
Deng combined artificial wetland；Correspondingly, the corresponding one-level aerobe pool and artificial swamp, the i.e. first order per one-level combined artificial wetland
Combined artificial wetland includes the first order aerobe pool and the first order artificial swamp positioned at upstream.
Preferably, the multistage composite artificial swamp is three-level.
Preferably, sterilization canal is set between the combined artificial wetland and outlet pipe.
Preferably, in the artificial swamp of afterbody combined artificial wetland, it is water near the artificial swamp unit of sterilization canal
Flat drowned flow artificial wet land unit.
Preferably, plant in the artificial swamp per one-level combined artificial wetland and be implanted with water plant.
Preferably, the water plant is Canna generalis Bailey, phragmites communiss, Herba Typhae, yellow flag, Rhizoma Acori Graminei, thaliadeabata, Herba Lythri Salicariae, wick
Grass, Caulis Zizaniae caduciflorae, cyperus alternifolius, Caulis Miscanthis floriduli, Mugil cephaluss grass in one or more.
The perisporium of the bottom on the aerobe pool and artificial swamp at different levels, bottom are equipped with impervious barrier, and it is anti-that perisporium is laid
Infiltration layer is two cloth, one film geomembrane anti-seepage layer, and the impervious barrier of bottom laying is by the geomembrane of two cloth, one film and positioned at antiseepage film
The coarse sand protective layer composition of upper and lower.
It is the fillers such as the rubble of 20-50mm, cobble to be provided with particle diameter in artificial swamp unit, near outlet canal about 5-15m's
In the range of artificial swamp unit be provided with particle diameter be 4-6mm crushed rock filler filtering area.
The aerobe pool is provided with heavy water, endures water, swims and floatingleaved plant, and submerged plant is Herba vallisneriae Spiralis, watermifoil etc.
Combination, emergent aquactic plant is the combination of Hydrocotyle vulgaris L., Herba Typhae, phragmites communiss, Caulis Zizaniae caduciflorae, Flos Nelumbinises etc., and floating plant is the group of Herba Eichhorniae, Herba Spirodelae etc.
Close, floatingleaved plant is the combination of Flos nymphaeae (Nymphaea teragona Georgi), Herba potamogetonis distincti etc..
In the artificial swamp unit of the artificial swamp at different levels, water plant is Canna generalis Bailey, phragmites communiss, Herba Typhae, yellow flag, Chang
Pu, thaliadeabata, Herba Lythri Salicariae, Medulla Junci, Caulis Zizaniae caduciflorae, cyperus alternifolius, Caulis Miscanthis floriduli, Mugil cephaluss grass etc. one or more.
The artificial swamp distributing channel at different levels is xoncrete structure open channel or closed conduit, the water in distributing channel by pipeline to
Artificial swamp water distribution, pipeline are provided with water distribution operation valve.
The artificial wetland effluent pipeline at different levels is water level adjustable Discharging bent-tube, and Discharging bent-tube is located in braiding channel,
Braiding channel is xoncrete structure open channel or closed conduit.
The artificial swamp at different levels is equipped with evacuated tube, emptying tube hub absolute altitude and artificial swamp bottom surface distance about 150-
200mm, evacuated tube are provided with emptying operation valve, and all evacuated tubes are connected with emptying main, every certain on emptying main
Distance is provided with emptying inspection shaft.
Compared with prior art, the beneficial effects of the present invention is：The present invention by the aerobe pool, vertical subsurface flow wetland,
Free water surface wetland and horizontal subsurface flow wetland carry out rational optimum organization, it is achieved that wastewater efficient is purified and town ecological landscape is built
If dual-use function.
Float in micropollutant water or urban wastewater treatment firm one-level B standard tail water is in the first order aerobe pool
Sedimentation and the phytobiocoenose system of structure the effective interception of float is filtered, reduce entrance first order vertical subsurface flow artificial
Suspension content in wetland unit, the risk for occurring blocking so as to greatly reduce vertical subsurface flow wetland.
The effluent weir drop of the oxygen-enriched function on the aerobe pools at different levels and its uniqueness is oxygen-enriched-i.e. downflow weir, it is ensured that at different levels
Artificial swamp unit run for many years after be not in complete anaerobism situation, it is achieved that artificial swamp units at different levels can be with long-acting steady
Fixed operation, so that play the environmental infrastructure function as sewage purification and landscaping.
The aerobe pools at different levels under aerobic condition, using water plant, animal, microorganism group into ecosystem many
Float, Organic substance and ammonia nitrogen in weight synergism removal water body, while absorb using water plant to go to denitrogenate phosphorus.
Surface current artificial wetland mainly forms aerobic environment condition by surface current and shallow-layer filler, in the work of microorganism
With the lower Organic substance and ammonia nitrogen removed by aerobic degradation in water body, while absorb using water plant to go to denitrogenate phosphorus.
Vertical subsurface flow wetland unit in water body from top to bottom（Or from bottom to top）In flow event, and horizontal drowned flow
Artificial swamp unit water body gravity flow plug-flow water distribution during, water body after aerobic, anoxia and anaerobic environment packing area, aquatic
Plant, microorganism, under the collaboration of filler, removal and denitrogenation that Organic substance is realized by physics, chemistry, biological multiple synergism
Phosphorus removal functional, while absorb using water plant to go to denitrogenate phosphorus.
Multi-stage aerobic biological pond and artificial swamp and surface current artificial wetland and horizontal drowned flow artificial wet land have unit
Close, construct the aerobic of multi-stage alternate change, anoxia and anaerobic environment condition portion, recycle the aquatic plant in varying environment area
The multiple synergism of thing, microorganism and filler, realizes that the filtration sedimentation of multistage suspension thing, organic matter degradation, nitrification/denitrification take off
The processes such as the absorption of nitrogen and phosphorus, release and absorption, especially enhance Nitrogen/Phosphorus Removal.
In afterbody artificial wet land system, in the nearest artificial swamp unit of distance sterilization canal, filling 4-6mm small particles are broken
Hardcore, as crushed rock filler filtering area, may further ensure that out that the key index such as aqueous suspension and nitrogen phosphorus is up to standard.
Urban wastewater treatment firm one-level B mark is carried out using the combined artificial wetland process system of high-efficient denitrification and dephosphorization of the present invention
Quasi- Tailwater Depth is processed, and long term monitoring result shows：In the case of the not carbon source such as extraneous acetic acid sodium, the combined artificial wetland system
System is to total nitrogen in one-level B standard tail water（TN）Clearance reach 20%-40%, total phosphorus（TP）Clearance reach 30%-50%.Always
It, urban wastewater treatment firm one-level B standard deep purification of tail water to one-level A economical, stable, effectively can be discharged mark by the present invention
Standard, both overcome the single shortcoming of wet land technique type, improve the low difficult problem of conventional composite wet land technique deamination phosphorus removing efficiency,
Urban wastewater treatment firm ecoscape is enhanced, breaching only Treatment of Industrial Water technology again could be used as urban wastewater treatment firm
Tail water puies forward the technical bottleneck of mark transformation.
Description of the drawings
Fig. 1 represents the three-level composite constructed wetland system that embodiment 1 is provided.Wherein：11 represent water inlet pipe, and 22 represent sterilization
Canal, 33 represent that outlet pipe, T represent the aerobe pool, and T-1 is the first order aerobe pool, and T-2 is the second level aerobe pool,
T-3 is the third level aerobe pool；I represents first order artificial swamp, and II represents second level artificial swamp, and III represents the third level
Artificial swamp；Correspondingly, I-1, I-2, I-3, I-4 represent four artificial wetland units in first order artificial swamp；II-1、II
- 2, II-3, II-4 represent four artificial wetland units in the artificial swamp of the second level；III-1, III-2, III-3, III-4 table
Show four artificial wetland units in third level artificial swamp.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of high-efficient denitrification and dephosphorization three-level combined artificial wetland process system of the invention, by water (flow) direction bag
Include be sequentially connected water inlet pipe 11, three-level combined artificial wetland, sterilization canal 22, outlet pipe 33, three-level combined artificial wetland（Or claim
Three-level subsystem）From the low arrangement of height, three-level subsystem includes the aerobe pool and artificial swamp.Aerobe pool bottom and
Artificial swamp perisporium, bottom are equipped with impervious barrier, and the impervious barrier of perisporium laying is two cloth, one film geomembrane anti-seepage layer, and bottom spreads
If coarse sand protective layer of the impervious barrier by two cloth, one film geomembrane and positioned at antiseepage film upper and lower constitute.Sewage（Or cities and towns
Sewage treatment plant's one-level B standard tail water）Initially enter the first order aerobe pool（T-1）[referred to as can give birth to below the aerobe pool
The thing pool], the water outlet of first order biological pond is collected and using distributing pipe line to the artificial of first order vertical subsurface flow using two distributing channels
Wetland（I-1, I-1, I-2, I-3 and I-4）Water distribution, collects first order vertical subsurface flow wetland using braiding channel（I）Water outlet is entered
Enter second level biological pond（T-2）, second level biological pond is collected using distributing channel（T-2）Water outlet simultaneously utilizes distributing pipe line to the second level
Horizontal drowned flow artificial wet land（II-1、II-2）Water distribution, collects second level horizontal drowned flow artificial wet land using braiding channel（II-1、II-
2）Water outlet to second level surface current artificial wetland（II-3、II-4）Water distribution, collects second level surface turning flow artificial using braiding channel
Wetland（II-3、II-4）Water outlet enters third level biological pond（T-3）, third level biological pond is collected using distributing channel（T-3）Water outlet
And using distributing pipe line to third level surface current artificial wetland（III-1、III-2）Water distribution, collects third level table using braiding channel
Surface current artificial swamp（III-1、III-2）Water outlet to third level horizontal drowned flow artificial wet land（III-3、III-4）Water distribution, finally
Three-level horizontal drowned flow artificial wet land（III-3、III-4）Water outlet is pooled to ultraviolet disinfection canal disinfection through braiding channel, its
Several downflow weirs are all provided with middle biological pond.
Using manually building aerobic biological pond or the natural biological pool suitably being repaired, build in the aerobe pool shallow
Pool, transition region and the region of profundal zone three.First order biological pond volume 3850m3, both sides phytal zone beam overall 7m, the depth of water≤
0.4m, both sides transition region beam overall 6m, depth of water 0.4-1.6m, middle profundal zone width 2-8m, depth of water 1.6-2m.Second level biological pond holds
Product 1750m3, both sides phytal zone beam overall 2m, the depth of water≤0.3m, both sides transition region beam overall 3m, depth of water 0.3-1.2m, middle profundal zone
Wide 2-8m, depth of water 1.2-1.5m.Third level biological pond volume 3200m3, both sides phytal zone beam overall 7m, the depth of water≤0.4m, both sides mistake
Cross area beam overall 6m, depth of water 0.4-1.6m, middle profundal zone width 2-10m, depth of water 1.6-2.0m.It is heavy to be configured with the aerobe pool
Water, very water, swim and floatingleaved plant.
Using the rectangle like cell body of brick mix structure, the length and width size of first order artificial swamp cell body is each about（68-81）m
×（43-57）M, area are each about 3300m2, ballast grain sizes about 20-50mm, depth be about 1.2m, and rubble bed volume is about
4000m3.The length and width size of second level artificial swamp cell body is each about（94-98）m×（44-57）M, area are each about 4250m2,
Ballast grain sizes about 30-40mm, second level horizontal drowned flow artificial wet land rubble depth are about 1.0m, rubble bed volume and are about
4250m3, second level free water surface wetland rubble depth about 0.6m, rubble bed volume are about 2600 m3.The first order, the second level are artificial
The each cell body of wetland is approximately equidistantly being divided into 4 little wetland lists with 200mm thickness brick mix structure bodies of wall on length direction
Unit.The length and width size of third level artificial swamp cell body is each about（68-86）m×（52-56）M, area are each about 4000m2, rubble
Particle diameter about 40-50mm, third level free water surface wetland rubble depth about 0.6m, rubble bed volume are about 2500 m3, three-level level dive
Stream wetland rubble depth is about 1.0m, rubble bed volume and is about 4000m3.The each cell body of third level artificial swamp is perpendicular to width
3 little wetland units are approximately equidistantly divided into 200mm thickness brick mix structure bodies of wall on direction.
Two cloth one film geomembrane anti-seepage layer is laid in the perisporium of the aerobe pool at different levels bottom and artificial swamp, bottom.Good
Oxygen biological pond kind is implanted with the emergent aquactic plants such as the submerged plants such as Herba vallisneriae Spiralis, watermifoil, Hydrocotyle vulgaris L., Herba Typhae, phragmites communiss, Caulis Zizaniae caduciflorae, Flos nymphaeae (Nymphaea teragona Georgi), eye
The floatingleaved plants such as dish.One-level artificial swamp kind is implanted with the plants such as yellow flag, Herba Typhae, phragmites communiss, Canna generalis Bailey, Caulis Miscanthis floriduli, and two grades artificial
Wetland kind is implanted with the plants such as yellow flag, Herba Typhae, cyperus alternifolius, Canna generalis Bailey, Medulla Junci, Caulis Zizaniae caduciflorae, and three-stage constructed wetland kind is implanted with power again
The plants such as flower, phragmites communiss, Rhizoma Acori Graminei, Herba Lythri Salicariae, Canna generalis Bailey, Mugil cephaluss grass, wherein vertical subsurface flow wetland plant growing density are not less than 9
Strain/m2, free water surface wetland and horizontal subsurface flow wetland plant growing density are not less than 6 plants/m2.
Central China city sewage treatment plant one-level B standard tail water is accessed the three-level composite type artificial wetland technique system
In system, after the wetland plant growth, domestication and biological Membrance cuiture through 3-6 month, advanced treatment of wastewater is carried out.Through 4 years
Many stable operation, to the water monitoring data of the three-level composite constructed wetland system Inlet and outlet water be in the recent period：Influent quality is about
COD 26.5mg/L, SS 16mg/L, TN 17.8mg/L, TP 0.7mg/L, effluent quality are about COD 15.9mg/L, SS
6mg/L、TN 12.5mg/L、TP 0.43mg/L.
Claims (6)
1. a kind of combined artificial wetland process system for denitrogenation dephosphorizing, it is characterised in that including water inlet pipe, outlet pipe and position
The multistage composite artificial swamp being serially connected between water inlet pipe and outlet pipe；Water (flow) direction is pressed, wet per one-level combined artificial
Ground includes that the artificial swamp positioned at the aerobe pool of upstream and positioned at downstream, each artificial swamp include several Manual moists
Ground unit；Multiple downflow weirs are set in the aerobe pool；
Wherein, in the artificial swamp of first order combined artificial wetland, parallel with one another between each artificial wetland unit, and be vertical
Straight drowned flow artificial wet land unit；
In the artificial swamp of other combined artificial wetlands at different levels wherein, in addition to first order combined artificial wetland, artificial swamp
Including the group of some artificial swamp unit compositions being serially connected, parallel with one another between each group；In each group
Artificial swamp unit both included horizontal drowned flow artificial wet land unit, again include surface current artificial wetland's unit.
2. combined artificial wetland process system as claimed in claim 1, it is characterised in that the multistage composite artificial swamp is
Three-level.
3. combined artificial wetland process system as claimed in claim 1, it is characterised in that the combined artificial wetland and water outlet
Sterilization canal is set between pipe.
4. combined artificial wetland process system as claimed in claim 1, it is characterised in that afterbody combined artificial wetland
In artificial swamp, it is horizontal drowned flow artificial wet land unit near the artificial swamp unit of sterilization canal.
5. combined artificial wetland process system as claimed in claim 1, it is characterised in that per the people of one-level combined artificial wetland
Plant in work wetland and be implanted with water plant.
6. combined artificial wetland process system as claimed in claim 5, it is characterised in that the water plant be Canna generalis Bailey,
One kind in phragmites communiss, Herba Typhae, yellow flag, Rhizoma Acori Graminei, thaliadeabata, Herba Lythri Salicariae, Medulla Junci, Caulis Zizaniae caduciflorae, cyperus alternifolius, Caulis Miscanthis floriduli, Mugil cephaluss grass
Or it is two or more.
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| CN107226593A (en) * | 2017-07-28 | 2017-10-03 | 广州华苑园林股份有限公司 | Water purification system and method for purifying water |
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| CN108726684A (en) * | 2018-06-04 | 2018-11-02 | 广州市净水有限公司 | A kind of the dirty water decontamination handles artificial wet land system |
| CN108911155A (en) * | 2018-07-17 | 2018-11-30 | 江苏省环境科学研究院 | A kind of hybrid constructed wetland system and its method for handling low-concentration heavy metal sewage |
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| CN109592791A (en) * | 2019-02-21 | 2019-04-09 | 中国环境科学研究院 | A kind of composite constructed wetland system and its operation method |
| CN110845084A (en) * | 2019-12-05 | 2020-02-28 | 湖南中彩生态环境科技有限公司 | Artificial wetland system applied to super-limit purification treatment of low-concentration polluted water body |
| CN116553737A (en) * | 2023-06-05 | 2023-08-08 | 悉地（苏州）勘察设计顾问有限公司 | Matrix type parallel arrangement subsurface wetland water flow control system |
| CN116553737B (en) * | 2023-06-05 | 2023-12-01 | 悉地（苏州）勘察设计顾问有限公司 | Matrix type parallel arrangement subsurface wetland water flow control system |
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Application publication date: 20170315 |