CN104445621A - Plant screening and configuring method for improving operation effect of subsurface flow type constructed wetland in winter - Google Patents
Plant screening and configuring method for improving operation effect of subsurface flow type constructed wetland in winter Download PDFInfo
- Publication number
- CN104445621A CN104445621A CN201410554829.6A CN201410554829A CN104445621A CN 104445621 A CN104445621 A CN 104445621A CN 201410554829 A CN201410554829 A CN 201410554829A CN 104445621 A CN104445621 A CN 104445621A
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- Prior art keywords
- plant
- screening
- xylophyta
- winter
- operation effect
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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
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
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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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- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention belongs to the technical field of biological environment protection, and in particular relates to a plant screening and configuring method for improving an operation effect of a subsurface flow type constructed wetland in winter. Ligneous plants and herbaceous plants are screened out under the comprehensive consideration of the characteristics such as stain resistance and purification ability, growth property, rhizosphere enzyme activity, landscape property of the plants, and the grown plants are periodically maintained and managed. According to the method, a good operation effect of the constructed wetlands in winter is guaranteed, the landscape property of four seasons in the overall year is maintained, the promotion and application bottleneck of the wetlands is effectively solved, and the application prospect is wide.
Description
Technical field
The invention belongs to ecological, environmental protective technical field, be specifically related to foliage filter screening and the configuration of underflow type artificial wet land.
Background technology
Underflow type artificial wet land hydraulic load and pollution load large, good to the contamination index such as COD, SS and heavy metal removal effect, if operational process management is proper, can also effectively prevent the breeding of flies and mosquitoes and the generation of stink, be therefore a kind of artificial wet land treating system that investigation and application is more in the world at present.
Plant plays a very important role in artificial swamp sewage purification.Except Absorbable organic halogens bed surface, raising filtration efficiency, heat-preserving anti-freezing, provide except the physical actions such as more adsorption site for microbial growth, root system of plant can directly adsorb and the organism in sedimentation sewage and the nutritive substance such as nitrogen, phosphorus, and root exudates can promote the growth of some nitrogen, phosphorus transform bacteria.Meanwhile, plant can by produced by photosynthesis about 90% oxygen delivery to root, thus improve the dissolved oxygen levels of wetland inside, and then indirectly improve purification efficiency.Most of artificial swamp in patented technology in summer and autumn, there is good operating performance, Pollutant Treatment is effective; But whenever winter, the overground part branch of plant is withered gradually, the problem such as cause the unstable and landscape effect of water treatment effect poor, therefore the range of application of artificial swamp and popularization are restricted.
Summary of the invention
The object of the invention is to screening can improve the floristics of underflow type artificial wet land steady running effect and reasonably configure, to solve a difficult problem for artificial wetland winter operation poor effect and view difference, for applying of Artificial Wetland Techniques provides technical guarantee.
Concrete technical scheme of the present invention is described below.
The invention provides a kind of foliage filter screening and the collocation method that improve underflow type artificial wet land winter operation effect, comprise the following steps:
(1) xylophyta and herbaceous plant is selected jointly to investigate object as underflow type artificial wet land plant species, by investigating the cold resistant property of xylophyta, herbal durability against pollution, cold resistant property and substrate enzyme activity, filter out the plant species for underflow type artificial wet land; Wherein: the plant meeting cold resistant property screening criteria need meet: can survive below 0 DEG C; The plant meeting durability against pollution screening criteria need meet: the removal ability of pollutent is greater than 60%; The plant meeting substrate enzyme screening active ingredients standard need meet: urase and phosphatase activity > 2.0 mg g
-1d
-1;
(2) be planted in wetland side slope position by screening the xylophyta obtained, herbaceous plant is planted in wetland, after plantation terminates, carries out interim maintenance and management to plant.
In the present invention, described xylophyta comprises Euonymus japonicus, color leaf purple willow and red maple; Described herbaceous plant comprises Siberian iris, yellow flag, again power flower, reed and cattail.
In the present invention, in step (2), describedly interim maintenance and management is carried out to plant comprise trimming and finishing, to remain necessarily tree-like, and cleaning weeds and administer plant pest etc.
Beneficial effect of the present invention is: be incorporated into by xylophyta in underflow type artificial wet land, because the growth phase of xylophyta is to slowly, biomass is little, root system is relatively poor to the adaptive faculty of sewage and vigorous than other type of the respiration of xylophyta root system, and oxygen content is relatively less in water body, wherein first is main, so the application in artificial swamp is also relatively less.But xylophyta is but incorporated in artificial swamp by the present invention, the plant screened has the growth characteristics of cold-resistant, resistant and the feature such as comprehensive substrate enzyme is active, expand the screening scope of plant, simple and convenient management of the present invention simultaneously, low and the Be very effective of running cost, has good application value and prospect.
Embodiment
The present invention, based on the foliage filter screening of artificial swamp, by plant reasonable disposition to ensure the normal operating performance of wetland, and keeps the view of wetland, has good development prospect.COD of sewage is realized through foliage filter screening of the present invention and reasonable disposition Absorbable organic halogens
cr, the principal pollutant such as TN and TP are down to national town sewage discharge one-level B standard, wetland landscape can not reduce with seasonal law simultaneously.
After Jiangsu Province builds up sewage work in small towns, process water outlet reaches the one-level B standard of town sewage discharge.Further purifying treatment is obtained for making the sewage after process, construct underflow type artificial wet land treatment system, profile is square (50m × 100m), the filler selected is light ceramic, filler upper strata is the pedosphere of 10-20cm thickness, for planting plants, have employed the foliage filter screening and compound method that the present invention relates to, specific as follows:
1, foliage filter screening
Utilize underflow type artificial wet land current at earth's surface matrix 10-20cm with the feature of current downflow, consider the feature screening such as resistant and detergent power, growth characteristics, substrate enzyme activity and view and obtain xylophyta and herbaceous plant kind, comprise Euonymus japonicus, color leaf purple willow, Siberian iris, yellow flag, again power flower etc.
2, the configuration of plant and plantation
According to the feature such as physiological property and view of plant, Euonymus japonicus is planted in the periphery of artificial swamp, plantation width is 50cm, plays the effect of enclosure, prevents wetland by artificial destruction; Color leaf purple willow plants the position in 3m inside Euonymus japonicus, and plantation spacing is 15m, and residual area plants Siberian iris, yellow flag and power flower etc. more successively, and plant spacing and be respectively 20cm, each plantation monomer is 2 strains.Planting time is in April, 2013, and each kind of plant all adopts the mode of transplanting to carry out.
3, the administering and maintaining of plant
Engage 2 local farmers, wetland plant is administered and maintained, mainly comprises and cut weeds and prune plant, specifically peripheral Euonymus japonicus trimmed in per March, ensure view, plant height after pruning, can be kept to be 80cm; Color leaf purple willow carries out branch in the winter time and prunes by force, ensure its good looking appearance and spring young leaves growth; Yellow flag, Siberian iris and again power flower prune in autumn end, ensure that the weather that temperature is lower in the winter time can not be injured by severe cold, the pollution substances such as the nitrogen phosphorus of plant-growth metabolic adsorption shifted out wet land system simultaneously.
After having planted in April, 2013, through bimestrial operation, vegetation growth state is good, and especially better, the wastewater treatment efficiency of underflow type artificial wet land is good, and water outlet reaches one-level A standard for Siberian iris, yellow flag, again power flower growing way.
In January, 2014 is by field observation plant situation and water quality interpretation of result, find that wetland plant still has and grow integrity preferably, simultaneously wetland effluent is still more stable, and the clearance such as TN, TP has had certain decline compared with summer and autumn, but still reaches one-level A standard.
Claims (3)
1. improve foliage filter screening and the collocation method of underflow type artificial wet land winter operation effect, comprise the following steps:
(1) xylophyta and herbaceous plant is selected jointly to investigate object as underflow type artificial wet land plant species, by investigating the cold resistant property of xylophyta, herbal durability against pollution, cold resistant property and substrate enzyme activity, filter out the plant species for underflow type artificial wet land; Wherein: described in; The plant meeting cold resistant property screening criteria need meet: can survive below 0 DEG C; The plant meeting durability against pollution screening criteria need meet: the removal ability of pollutent is greater than 60%; The plant meeting substrate enzyme screening active ingredients standard need meet: urase and phosphatase activity > 2.0 mg g
-1d
-1;
(2) be planted in wetland side slope position by screening the xylophyta obtained, herbaceous plant is planted in wetland, after plantation terminates, carries out interim maintenance and management to plant.
2. foliage filter screening according to claim 1 and collocation method, is characterized in that: described xylophyta comprises Euonymus japonicus, color leaf purple willow and red maple; Described herbaceous plant comprises Siberian iris, yellow flag, again power flower, reed and cattail.
3. foliage filter screening according to claim 1 and collocation method, is characterized in that: in step (2), describedly carries out interim maintenance and management to plant and comprises trimming and finishing, to remain necessarily tree-like, and cleaning weeds and administer plant pest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554829.6A CN104445621A (en) | 2014-10-20 | 2014-10-20 | Plant screening and configuring method for improving operation effect of subsurface flow type constructed wetland in winter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410554829.6A CN104445621A (en) | 2014-10-20 | 2014-10-20 | Plant screening and configuring method for improving operation effect of subsurface flow type constructed wetland in winter |
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| Publication Number | Publication Date |
|---|---|
| CN104445621A true CN104445621A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410554829.6A Pending CN104445621A (en) | 2014-10-20 | 2014-10-20 | Plant screening and configuring method for improving operation effect of subsurface flow type constructed wetland in winter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986861A (en) * | 2015-06-19 | 2015-10-21 | 南京信息工程大学 | Underflow type artificial wetland plant arrangement method used for purifying sewage of thermal power plant |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5863433A (en) * | 1996-12-02 | 1999-01-26 | Tennessee Valley Authority United States Corp. | Reciprocating subsurface-flow constructed wetlands for improving wastewater treatment |
| CN102060382A (en) * | 2009-11-16 | 2011-05-18 | 中南林业科技大学 | Method for screening and arranging artificial wetland winter plants for purifying domestic sewage in subtropical regions |
| CN102874931A (en) * | 2012-09-27 | 2013-01-16 | 中南林业科技大学 | Configuration method for undercurrent type artificial wetland woody plants in subtropical areas |
-
2014
- 2014-10-20 CN CN201410554829.6A patent/CN104445621A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5863433A (en) * | 1996-12-02 | 1999-01-26 | Tennessee Valley Authority United States Corp. | Reciprocating subsurface-flow constructed wetlands for improving wastewater treatment |
| CN102060382A (en) * | 2009-11-16 | 2011-05-18 | 中南林业科技大学 | Method for screening and arranging artificial wetland winter plants for purifying domestic sewage in subtropical regions |
| CN102874931A (en) * | 2012-09-27 | 2013-01-16 | 中南林业科技大学 | Configuration method for undercurrent type artificial wetland woody plants in subtropical areas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986861A (en) * | 2015-06-19 | 2015-10-21 | 南京信息工程大学 | Underflow type artificial wetland plant arrangement method used for purifying sewage of thermal power plant |
| CN104986861B (en) * | 2015-06-19 | 2017-04-12 | 南京信息工程大学 | Underflow type artificial wetland plant arrangement method used for purifying sewage of thermal power plant |
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Application publication date: 20150325 |