CN101041515A - Artificial marshland composite vegetation water treatment system - Google Patents
Artificial marshland composite vegetation water treatment system Download PDFInfo
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- CN101041515A CN101041515A CNA2007100644028A CN200710064402A CN101041515A CN 101041515 A CN101041515 A CN 101041515A CN A2007100644028 A CNA2007100644028 A CN A2007100644028A CN 200710064402 A CN200710064402 A CN 200710064402A CN 101041515 A CN101041515 A CN 101041515A
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- water
- wetland
- plant
- artificial swamp
- willow
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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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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a waste water purifying system of artificial marshland composite vegetation, which comprises the following steps: including water green onion, fragrant flag, water willow; interlineating fragrant flag line and water willow line in the water green onion line. This invention adopts low cost water green onion, fragrant flag, water willow and gravel base material to constitute hidden flow artificial marshland system, can either remove contaminant of water body effectively, or increase landscape of marshland distinctively.
Description
Technical field
The present invention relates to water treatment field, relate in particular to a kind of artificial marshland composite vegetation water treatment system.
Background technology
Artificial swamp is to go up the plantation wetland plant in certain matrix (filler), and organism and nitrogen, phosphor contaminant are had stronger degradation capability.Manually wetting is being the physics that utilizes matrix-microorganism-this complex ecosystem of plant, chemistry and biological triple coordinative roles, realizes efficient purification to waste water by filtration, precipitation, ion-exchange, plant absorbing and microbiological degradation.As far back as 20 beginnings of the century, just there are the precedent of utilizing cattail (Typha angustifolia) marsh to dispose of sewage in the Britain and the U.S..
The great majority research of at present relevant wetland plant is all carried out around draft, and cattail (Typha sp.), reed (Phragmites sp.), Scirpus tabernaemontani (Scirpus sp.), Canna generalis Bailey (Canna sp.), Herba Eichhorniae (Eichhorinacrassipes), sedge (Carex sp.), Rush (Juncus sp.), iris (Iris sp.) etc. are worldwide by extensive introducing culture.In China, calamus (Acorus calamus), Fischer grass (Scirpus sp.), reed canary grass (Phalaris sp.), cyperus malaccensis (Cyperus malaccensis), duckweed (Lemna minor), wild rice stem (Zezania latifalia) etc. also obtain broad research and application.And, the compound muskeg that the intermingle of different wetland floristics forms has more advantage than purebred vegetation at large, multiple class compound muskeg has higher wastewater purification efficiency than purebred vegetation, and parasite predation or fulminant disease are also had more stable resistibility.Purification data statistics single in the world to reed wetland and mixed planting finds that mixed planting system not only purification efficiency is higher, and effect is more stable.In China Kunming, the wild ripe plant of hornwort (Ceratophyllum demersum), water caltrop (Trapa japonica), Herba azollae imbricatae (Azolla imbricata), water peanut is moved into open-air concrete sump (3m * 3m * 1m, and by thinning maintenance vegetation coverage about 80%), the compound in twos group of four class plants is significantly improved than single kind to the purifying functions of N, P, illustrates that the different sorts intermingle can improve the whole purification efficiency of vegetation system to water body N, P.At U.S. Morgantown, Rush (J.effuses), oval black plastic manger (1.5m * 1m of the implanted 40L of Scirpus tabernaemontani and common cattail (T.latifolia), the thick beans shape gravel matrix of 45cm or 60cm is housed), the composite plant cover that three's single and compound intermingle test also proves three kinds is much higher than purebred vegetation to the purification efficiency of sanitary sewage.In addition, the dephosphorization efficiency by using (40～65%) and the stability of the vertical-flow wetland of intermingles such as reed-water tabernaemontanus bulrush (Schoenoplectus lacustris), wild rice stem-calamus, Fischer grass-sedge all are improved, and to the removal effect of algae toxin obviously (34.6～68.5%).
General wetland vascular plant (can abbreviate vascular plant as) can be by the differentiation current, slow down flow velocity fixes matrix, precipitation suspended substance, can be on stem and root system, the breeding of tiny organism adheres to the place for providing, can absorb C, N, P and trace element and enter tissue, and discharge organic carbon source so that provide energy for microbial metabolism from root, the litter of rotting, can be between atmosphere and settled layer exchanging gas and create the microenvironment of oxygen enrichment at the anoxic hypothallus, the aesthetic of landscape that can also increase wet land system is worth.Current artificial swamp turns to multiple goal to use from traditional single purification of water quality, the focus of its concern also increases to from pollutant removal to strengthen scientific research, improve species diversity and promote view amusement performance lays equal stress on, this with efficient water purification, to beautify the environment, strengthen species diversity, improve have a rest amusement and Popular Science Education of the public be to embody especially outstandingly in the multiobject urban wetland system.The muskeg system not only is directly connected to the wastewater purifying efficiency of artificial swamp, but also has the wet land system of lifting view, recover the wild fauna and flora habitat, strengthen that wetland is held back precipitation, the rain flood is regulated and stored and the underground water backfill, and view and admire, have a rest for the public provides and critical function such as Popular Science Education.
In actual application, although densely populated urban region is the most urgent to the demand of sewage purification technology, but the defective that the artificial swamp floor space is big has often restricted its application, to remove efficient and landscape effect in order improving, must to build by a plurality of landscape type wetland plant kind compound multiple goal urban wetlands.Municipal effluent has the characteristics of high hydraulic load, high nutrition load, the aquatic view of wetland that set up to be fit to the purification of municipal effluent, become concern the artificial swamp sewage purification technology can be in a short time, realize the core technology of large scale application and low cost, high-efficiency operation in the urban region.
Summary of the invention
At the defective in the above-mentioned field, the invention provides a kind of efficient water purification, artificial swamp composite plant cover sewage purification system that view is fine, the clean effect of this wet land system energy stable for extended periods of time, help enriching species diversity, the beautifying city view is viewed and admired have a rest place and Popular Science Education base for the public provides.
A kind of artificial swamp composite plant cover sewage purification system, it is characterized in that: described composite plant cover comprises Scirpus tabernaemontani, cattail and water willow, assorted in the ranks, the water willow row capable with cattail of Scirpus tabernaemontani.
Described line-spacing is 40-60cm, spacing in the rows 30-50cm.
It is described that to wet in matrix be chad matrix.
Described chad matrix particle diameter is 3-5cm.
Described artificial swamp type is a undercurrent type wetland.
The present invention is according to the high COD of municipal effluent, BOD, the characteristics of high N, high P, in the vegetation of artificial swamp, optimize Scirpus tabernaemontani, cattail and water willow and form composite plant cover, with the Scirpus tabernaemontani is the main every trade shape plantation of going forward side by side, assorted with cattail, water willow row between the Scirpus tabernaemontani row, concrete cropping pattern is ... the Scirpus tabernaemontani row ... cattail is capable ... the Scirpus tabernaemontani row ... the water willow row ... the Scirpus tabernaemontani row ...
Artificial swamp has stronger detergent power to organism, insoluble organism in the sewage is by the precipitation of wetland, filteration, may be retained down very soon and be utilized by microorganism, the dissolved organic matter in the sewage then can be by the removal that is decomposed of the biomembranous absorption of root system of plant, absorption and bio-metabolic process.Nitrogen in the sewage mainly is that processes such as the absorption of the volatilization of absorption, ammonia of nitrification and denitrification effect, plant by microorganism and matrix and filtration are removed.Nitrogen in the sewage exists with organonitrogen and two kinds of forms of inorganic nitrogen.Inorganic nitrogen can be by the plant absorbing in the artificial swamp, and synthesising plant protein is removed from wet land system by the harvesting form of plant at last.Organonitrogen mainly is to remove by the nitrification and denitrification effect, nitration reaction is mainly carried out under aerobic condition, denitrification is then carried out under the anaerobic condition, improve the clearance of organonitrogen, then need to keep the unobstructed of nitrated-denitrification approach, this key wherein is to improve the deliverability of oxygen.Phosphorus in the sewage mainly be by matrix absorption, complexing and with the precipitin reaction and the peat accumulation of calcium, aluminium, iron and soil particle, the absorption of plant, the removal of microorganisms effect removes.
The detergent power of plant is mainly relevant with the factors such as oxygen carrying capacity of the development degree of the biomass of plant, root system, root system in the artificial swamp, the different types of wetland plant of artificial swamp has certain difference to the removal of pollutent, therefore may determine wetland plant according to the difference of pollutant load, and the detergent power of composite plant cover is better than single vegetation.After the compound intermingle of different plants, at first different types of wetland plant has advantage for specific pollutant removal, and wetland plant also can promote mutual growth and breeding by discharging allelochemical, and then form and to stablize vigorous vegetational type, thereby improve the whole decontamination effect improving of vegetation system.Also have, the physiological metabolism of wetland plant is directly connected to microflora and the contaminant degradation effect thereof that depends on it.In general, multiple class compound muskeg can provide more effective distribution for root system, and for a greater variety of microfloras provide the habitat, thereby the composite cultivation system has big and persistent detergent power to sewage.In compound muskeg system, the root system of different sorts plant is except carrying O to root
2Outward, can also secrete organic compound such as a greater variety of sugar, alcohol, amino acid, VITAMIN, phosphatide (account for photosynthesis fixed carbon 10～40%), this may provide the machine carbon source for the abundant more denitrification mushroom of kind, thereby increase the nitrate removal rate, quicken the mineralising of organic pollutant.The present invention selects draft to combine with woody according to the characteristics of the high COD of municipal effluent, BOD, high N, high P, and the draft root system is abundant, and woody well developed root system, both learn from other's strong points to offset one's weaknesses, and mutually promote again, and its cleaning water is greatly improved than single vegetation.Each tool of above-mentioned three kind of plant purifies characteristic, and Scirpus tabernaemontani can efficiently be removed COD, the BOD pollutant that content is very high in the municipal effluent; Cattail not only can be removed N, P pollutant, and root exudates can effectively kill distinctive various bacteriums and pathogenic agent in the municipal effluent; The dark hat of water willow root is big, can improve the clearance of organonitrogen to the matrix delivering oxygen, beautifies wetland landscape simultaneously.The plant variety that the present invention adopts all has grow fast, the high characteristics of plant, builds the back artificial wet land system and can effectively suppress the weeds invasion, has reduced running cost.
Preferred line-spacing is 40-60cm, and spacing in the rows 30-50cm. is in this scope, and Root Distribution is even in the wetland, and purifying water effect is stable, reduces other species invasions simultaneously.What the present invention was primarily aimed at is municipal effluent, and the graininess pollutent is less in the municipal effluent, and high N, high P, and adopting particle diameter is that the chad matrix of 3-5cm is with effective removal TN, TP.The suitable chad of particle diameter both can keep enough permeabilities to improve the anoxic conditions of matrix, was convenient to root system and pricked deeply, was beneficial to the set growth of root system of plant again; The artificial swamp type is preferably undercurrent type wetland, and the current wetland purification efficiency is higher, and does not have peculiar smell, can not grow mosquitos and flies, and the type wetland more adapts to aquatic plants growth, and purifying water effect is obvious.
The present invention has following advantage:
1. cleaning water height.Even if also can reach COD in the autumn and winter season of Beijing area willow wetland removal efficient
Cr0.750g m
-2d
-1, TN0.032g m
-2d
-1, TP0.386g m
-2d
-1
2. construction cost is low.The chad matrix wide material sources of Scirpus tabernaemontani, cattail, water willow plant variety and the about 3-5cm of particle diameter that the present invention adopts, cheap, thereby can reduce the construction cost of artificial swamp effectively.
3. operational management is convenient.Plant variety vitality of the present invention is strong, and growth is rapid, and plant is tall and big, has advantage in the competition with weeds, can effectively suppress the weeds invasion, reduces the operational and administrative expenses of artificial swamp.
4. landscape effect is fine.Plant variety of the present invention belongs to the landscape type waterplant, thereby the compound muskeg of Scirpus tabernaemontani has undoubtedly and very highly have the aesthetic of landscape to be worth, and can effectively promote the surrounding enviroment quality.
The present invention adopts wide material sources, Scirpus tabernaemontani, cattail, water willow and chad matrix with low cost to build subsurface flow constructed wetland system, not only can effectively remove water pollutant, and can significantly strengthen wetland landscape.This wetland not only can be in the urban region efficient purifying domestic sewage, in vast Rural areas rainwash, trade effluent, mine wastewater etc. are also had good purification potentiality.
Embodiment
Below by embodiment the present invention is described in further detail.
Embodiment 1
Subsurface flow wetland system in 50m * 10m scale, adopt Scirpus tabernaemontani (Scirpus validus), cattail (Typhaangustata), the perennial subterraneous root of water willow (Lythrum salicaria) according to ... the Scirpus tabernaemontani row ... cattail is capable ... the Scirpus tabernaemontani row ... the water willow row ... the Scirpus tabernaemontani row ... the cropping pattern of (line-spacing 50cm) is built the subsurface constructed wetland sewage purification system on the chad matrix of the about 5cm of particle diameter, after building up 1 year, day the amount of disposing of sewage reach 50m
3d
-1Condition under, during 9.13-11.21 in 2005, it removes efficient can reach COD
Cr0.750gm
-2d
-1, TN0.032g m
-2d
-1, TP0.386g m
-2d
-1
Embodiment 2
Subsurface flow wetland system in 50m * 10m scale, adopt Scirpus tabernaemontani (Scirpus validus), cattail (Typhaangustata), the perennial subterraneous root of water willow (Lythrum salicaria) according to ... the Scirpus tabernaemontani row ... cattail is capable ... the Scirpus tabernaemontani row ... the water willow row ... the Scirpus tabernaemontani row ... the cropping pattern of (line-spacing 50cm) is built the subsurface constructed wetland sewage purification system on the chad matrix of the about 5cm of particle diameter, after building up 1 year, day the amount of disposing of sewage reach 50m
3d
-1Condition under, during 4.6-10.27 in 2006, it removes efficient can reach COD
Cr0.64gm
-2d
-1
Embodiment 3
Subsurface flow wetland system in 30m * 20m scale, adopt Scirpus tabernaemontani (Scirpus validus), cattail (Typhaangustata), the perennial subterraneous root of water willow (Lythrum salicaria) according to ... the Scirpus tabernaemontani row ... cattail is capable ... the Scirpus tabernaemontani row ... the water willow row ... the Scirpus tabernaemontani row ... the cropping pattern of (line-spacing 50cm) is built the subsurface constructed wetland sewage purification system on the chad matrix of the about 5cm of particle diameter, after building up 1 year, day the amount of disposing of sewage reach 30m
3d
-1Condition under, during the 9-11 month in 2005, it removes efficient can reach COD
Cr0.830g m
-2d
-1, TN0.046g m
-2d
-1, TP0.462g m
-2d
-1
Embodiment 4
Subsurface flow wetland system in 30m * 20m scale, adopt Scirpus tabernaemontani (Scirpus validus), cattail (Typhaangustata), the perennial subterraneous root of water willow (Lythrum salicaria) according to ... the Scirpus tabernaemontani row ... cattail is capable ... the Scirpus tabernaemontani row ... the water willow row ... the Scirpus tabernaemontani row ... the cropping pattern of (line-spacing 50cm) is built the subsurface constructed wetland sewage purification system on the chad matrix of the about 5cm of particle diameter, after building up 1 year, day the amount of disposing of sewage reach 60m
3d
-1Condition under, during the 4-11 month in 2006, it removes efficient can reach COD
Cr0.74g m
-2d
-1
Comparative Examples:
Reference examples 1: cattail is one of wetland plant the most commonly used in the world wide, under the condition of conditionally complete unanimities such as scale, matrix, Inlet and outlet water, wetland type, cattail (Typha angustata)-chad matrix current wetland is during 9.13-11.21 in 2005, and it removes efficient only is COD respectively
Cr0.615gm
-2d
-1, TN0.023g m
-2d
-1, TP0.338g m
-2d
-1
Claims (5)
1. artificial swamp composite plant cover sewage purification system, it is characterized in that: described composite plant cover comprises Scirpus tabernaemontani, cattail and water willow, assorted in the ranks, the water willow row capable with cattail of Scirpus tabernaemontani.
2. artificial swamp composite plant cover sewage purification system according to claim 1, described line-spacing is 40-60cm, spacing in the rows 30-50cm.
3. artificial swamp composite plant cover sewage purification system according to claim 1, described to wet in matrix be chad matrix.
4. artificial swamp composite plant cover sewage purification system according to claim 3, described chad matrix particle diameter is 3-5cm.
5. artificial swamp composite plant cover sewage purification system according to claim 1, described artificial swamp type are undercurrent type wetland.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100644028A CN100460344C (en) | 2007-03-14 | 2007-03-14 | Artificial marshland composite vegetation water treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100644028A CN100460344C (en) | 2007-03-14 | 2007-03-14 | Artificial marshland composite vegetation water treatment system |
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| CN101041515A true CN101041515A (en) | 2007-09-26 |
| CN100460344C CN100460344C (en) | 2009-02-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544425B (en) * | 2009-05-07 | 2011-02-09 | 长江水资源保护科学研究所 | Landscape-type recycled water treatment wetland system suitable for urban community |
| CN102219343A (en) * | 2011-03-15 | 2011-10-19 | 华中师范大学 | Method for removing toxic organic pollutants from sediment by using plant |
| CN102583755A (en) * | 2012-01-19 | 2012-07-18 | 靖德兵 | Method for removing heavy metals from water body by composite wetland vegetation |
| CN102838254A (en) * | 2012-08-23 | 2012-12-26 | 广东汇清环保技术有限公司 | Treatment process for acidic heavy metal wastewater |
| CN115650437A (en) * | 2022-09-29 | 2023-01-31 | 金川集团股份有限公司 | Method for treating acid waste water source of nonferrous metal mine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6277274B1 (en) * | 1999-04-16 | 2001-08-21 | Larry Steven Coffman | Method and apparatus for treating stormwater runoff |
| CN100336748C (en) * | 2003-04-01 | 2007-09-12 | 邱江平 | High density aquatic plant ditch sewage treatment system |
| CN1280211C (en) * | 2004-04-12 | 2006-10-18 | 中国科学院武汉植物园 | Method for constructing landscape ecosystem on ultrophication water body |
-
2007
- 2007-03-14 CN CNB2007100644028A patent/CN100460344C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544425B (en) * | 2009-05-07 | 2011-02-09 | 长江水资源保护科学研究所 | Landscape-type recycled water treatment wetland system suitable for urban community |
| CN102219343A (en) * | 2011-03-15 | 2011-10-19 | 华中师范大学 | Method for removing toxic organic pollutants from sediment by using plant |
| CN102583755A (en) * | 2012-01-19 | 2012-07-18 | 靖德兵 | Method for removing heavy metals from water body by composite wetland vegetation |
| CN102838254A (en) * | 2012-08-23 | 2012-12-26 | 广东汇清环保技术有限公司 | Treatment process for acidic heavy metal wastewater |
| CN115650437A (en) * | 2022-09-29 | 2023-01-31 | 金川集团股份有限公司 | Method for treating acid waste water source of nonferrous metal mine |
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| CN100460344C (en) | 2009-02-11 |
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