CN105366817A - Multi-stage filler constructed wetland construction method - Google Patents
Multi-stage filler constructed wetland construction method Download PDFInfo
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- CN105366817A CN105366817A CN201510828544.1A CN201510828544A CN105366817A CN 105366817 A CN105366817 A CN 105366817A CN 201510828544 A CN201510828544 A CN 201510828544A CN 105366817 A CN105366817 A CN 105366817A
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention belongs to the ecological and environmental protection field, and relates to a multi-stage filler constructed wetland construction method. According to a horizontal subsurface flow type multi-stage filler constructed wetland constructed by the method, step-by-step filled gravels, red brick fragments, steel slag, ceramsite and clay are used as wetland fillers, and staggered planted zizania aquatica, pontederia cordata, ryegrass and photiniaxfrasery are used as wetland plants, and through synthetic action of filler filtration adsorption, plant absorption and microbial decomposition, city sewage plant tail water is effectively deeply purified. The depth of the wetland and the length and width of a pool body can be set according to different tail water treatment amounts. The multi-stage filler constructed wetland construction method has the characteristics of less investment, low cost, stable treatment effect, convenient operation and management and the like.
Description
Technical field
The invention belongs to eco-environmental conditions protection field, be specifically related to a kind of multistage packing artificial wetland method of construction.
Background technology
At present, tail water is generally entered the creek near this factory nearby by China's municipal wastewater treatment plant, the creek subregion aquatic environment around Tail water reuse mouth is caused to be subject to havoc, even if such as discharge tail water to reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) I level A water quality standard, still far above " water environment quality standard " (GB3838-2002) V class water quality standard, i.e. the NH of " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A
3-N, COD, TN, TP emission standard are 5.0mg/L, 50mg/L, 15mg/L, 0.5mg/L, and the NH of " water environment quality standard " (GB3838-2002) V class water
3-N, COD, TN, TP standard are 2.0mg/L, 40mg/L, 2.0mg/L, 0.4mg/L.Consider that traditional undercurrent type wet land system purification efficiency is on the low side, and multistage wetland coupling can cause, and capital construction cost is high, floor space large, operational management difficulty is large.Therefore, the present invention builds a kind ofly to be had compared with high depth detergent power, management maintenance is simple, energy consumption is low multistage packing subsurface flow constructed wetland to tail water produced by municipal sewage treatment plant, and this is significant to solving this difficult problem of part surface water pollution caused by Tail water reuse.
Summary of the invention
The object of the invention is to solve the deficiency of the on the low side and multistage wetland coupling of traditional undercurrent type wet land system purification efficiency and a kind of multistage packing artificial wetland method of construction is provided.The multistage packing artificial wetland of horizontal drowned flow formula constructed by the present invention is using stage filling gravel, common brick fragment, slag, haydite and clay as wet land filler; And staggered plantation wild rice stem, mullet grass, rye grass and photinia glabra are as wetland plant, by the comprehensive action of filler Filtration Adsorption, plant absorption and microbial decomposition, deep purifying tail water produced by municipal sewage treatment plant effectively, has the features such as less investment, cost is low, treatment effect is stable, operational management is convenient.
The technical solution used in the present invention is:
A kind of can the multistage packing artificial wet land system of deep purifying tail water produced by municipal sewage treatment plant as Fig. 1, Fig. 2, shown in Fig. 3: the overall specification of multistage packing subsurface flow formula artificial swamp is long × wide × dark (L × B × H), be divided into 5 regions, the water collecting basin I that length is L1 is built successively along tail water water (flow) direction, length is the distributing trough II of L2, length is the wetland bed tagma III of L3, the clean water basin V of length to be the settling region VI of L4 and length be L5, its entirety is built by pseudo-ginseng wall brick and is formed, wherein distributing trough and settling region separate (wall is furnished with aperture) with two or four brick cloth waterwalls respectively.Sewage treatment plant tail water is after water pipe collecting is collected by regulated valve introducing water collecting basin, enter in distributing trough through overflow weir 1 overflow, carry out homogeneous through its rear end cloth waterwall 2 pairs of tail water more all to measure, enter and the wetland bed tagma associating physics, chemistry, the biological method that pull out airduct 3 are housed deep purifying process is carried out to tail water, its aftertreatment water from flow through water distribution wall homogeneous all measure come settling region precipitation remove large granular impurity, come together in clean water basin through overflow weir overflow again, the tail water after process is arranged outward by by-pass valve control.
Wetland bed tagma successively filling thickness be the particle diameter 40-50mm gravel of H1, the thickness particle diameter 20-40mm common brick fragment that is H2, the thickness particle diameter 8-10mm slag that is H3, thickness be H4 particle diameter 4-8mm haydite, add thickness as the clay seam (every layer separates with the gauze of grid 1mm × 1mm) of H5 builds wet land filler, bed bottom sloping 1%.Wetland bed collocation plantation wild rice stem, photinia glabra, mullet grass and rye grass, and be mounted with and pull out airduct.Artificial swamp selects the wild rice stem in vegetative period, mullet grass, rye grass and photinia glabra to transplant in the present invention, intake immediately after plant transplanting, make the water surface close to wetland topsoil, after 1 week, wetland plant starts restoration ecosystem, thus allows the environment transplanting plant adaptation artificial wet land system also grow and wetland bed biofilm.
Cardinal principle of the present invention is based on following two aspects:
The first, the present invention adopts gravel, common brick fragment, slag, haydite and soil as wet land filler, both be conducive to retaining, the pollutent adsorbed in tail water, be conducive to again forming microbial film in Wetland Substrate surface and hole thereof, microorganism panning tail water pollutant in microbial film is used for own growth breeding and metabolism, realizes the purification of tail water in wet land filler region.
It two is that the present invention's staggered plantation wild rice stem, mullet grass, rye grass and photinia glabra are as wetland plant, and integrated use plant absorption and rhizospheric microorganism metabolism, effectively purify tail water water quality.
The present invention has following advantage:
(1) of the present invention wetland bed in fill gravel, common brick fragment, slag, haydite, soil successively as wet land filler, improve traditional wetland packing layer combination, make it more adapt to the hydraulics of tail water.From water treatment efficiency, it is wetland bed than single-stage or secondary filler wetland that the present invention makes, and it increases to the ability of tail water produced by municipal sewage treatment plant deep purifying.And the mixing of common brick fragment is higher in wet land filler, and common brick fragment is cheaply easy to get, the discarded house brick in transforming as used Urban House Demolition.
(2) adopt interval alternate run mode, both effectively improved reoxygenation level, and had and effectively can avoid Wetland clogging.By building multistage packing artificial wet land system, deep purifying tail water produced by municipal sewage treatment plant, wherein COD effectively
cr20.50 ~ 26.10mg/L can be down to; TP can be down to 0.19 ~ 0.63mg/L; TN can be down to 0.74 ~ 8.10mg/L; NH
4 +-N can be down to 0.01 ~ 0.35mg/L, has the features such as less investment, cost is low, treatment effect is stable, operational management is convenient.
Accompanying drawing explanation
Fig. 1 is the plot plan of multistage packing artificial wet land system.
Wherein: I-water collecting basin; II-distributing trough; The wetland bed tagma of III-; IV-settling region; V-clean water basin; 1-wild rice stem; 2-photinia glabra; 3-mullet grass; 4-rye grass;
The length of the multistage packing artificial wet land system of L-; The width of the multistage packing artificial wet land system of B-.
Fig. 2 is the sectional view of multistage packing artificial wet land system.
Wherein: 1-overflow weir; 2-cloth waterwall (wall is furnished with spacing be the aperture of 300mm be the aperture of 20mm); 3-pulls out airduct;
The length of L1-water collecting basin I; The length of L2-distributing trough II; The length of the wetland bed tagma III of L3-; The length of L4-settling region IV; The length of L5-clean water basin V.
Fig. 3 is the inner Wetland Substrate section of structure of artificial swamp.
Wherein: the gravel bed thickness of H1-particle diameter 40 ~ 50mm; The common brick fragment layer thickness of H2-particle diameter 20 ~ 40mm; The Slag Layer thickness of H3-particle diameter 8 ~ 10mm; The haydite layer thickness of H4-particle diameter 4 ~ 8mm; H5-thickness of clay soil.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, Figure 2 and Figure 3, the overall specification of multistage packing subsurface flow formula artificial swamp is L × B × H, it is divided into 5 regions, build along tail water water (flow) direction water collecting basin I that length is L1 successively, clean water basin V that settling region IV that wetland bed tagma III that distributing trough II that length is L2, length are L3, length are L4 and length are L5, its entirety is built by pseudo-ginseng wall brick and is formed, wherein distributing trough and settling region respectively with two or four brick cloth waterwalls with separate (wall is furnished with spacing be the aperture of 300mm be the aperture of 20mm).Filling thickness is the particle diameter 40-50mm gravel of H1 successively, the clay seam (every layer separates with the gauze of grid 1mm × 1mm) of the thickness particle diameter 20-40mm common brick fragment that is H2, the thickness particle diameter 8-10mm slag that is H3, thickness to be the particle diameter 4-8mm haydite of H4 and thickness be H5 builds wet land filler, bed bottom sloping 1% in wetland bed tagma.Wetland bed collocation plantation wild rice stem, photinia glabra, mullet grass and rye grass, and be mounted with and pull out airduct 3.Sewage treatment plant tail water is after water pipe collecting is collected by regulated valve introducing water collecting basin, enter in distributing trough through overflow weir 1 overflow, carry out homogeneous through its rear end cloth waterwall 2 pairs of tail water more all to measure, enter wetland bed tagma associating physics, chemistry, biological method carry out deep purifying process to tail water, its aftertreatment water from flow through water distribution wall homogeneous all measure come settling region precipitation remove large granular impurity, come together in clean water basin through overflow weir overflow again, the tail water after process is arranged outward by by-pass valve control.
Artificial swamp selects wild rice stem, mullet grass, rye grass and photinia glabra to transplant, intake immediately after plant transplanting, make the water surface close to wetland topsoil, after 1 week, wetland plant starts restoration ecosystem, thus allows transplanting plant adapt to the environment of artificial wet land system and the biofilm of growth and wetland bed interior stromal surface.
Utilize the operation scheme of above-mentioned artificial wet land system process tail water as follows: after the startup of artificial swamp, monitor multistage packing artificial wet land system deep purifying sewage treatment plant tail water effect, concrete operations are: adopt operational mode to be that water inlet-emptying artificial wet land system of process 24h-carries out deep purifying to sewage treatment plant tail water.
4 embodiments are below provided to further illustrate the steady running situation of artificial swamp.Embodiment for illustration of content of the present invention, instead of limits content of the present invention.
Embodiment 1
As shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, process tailwater quantity 12m
3the overall specification of multistage packing subsurface flow formula artificial swamp of/d is L × B × H=15.96m × 3.74m × 2.00m, it is divided into 5 regions, build along tail water water (flow) direction water collecting basin I that length is L1=1.0m successively, clean water basin V that settling region IV that wetland bed tagma III that distributing trough II that length is L2=1.0m, length are L3=10m, length are L4=1.0m and length are L5=1.0m, its entirety is built by pseudo-ginseng wall brick and is formed, and wherein distributing trough and settling region are built cloth waterwall with two or four wall bricks respectively and separated (wall is furnished with spacing be the aperture of 300mm be the aperture of 20mm).Filling thickness is the particle diameter 40-50mm gravel of H1=26cm successively, the clay seam (every layer separates with the gauze of grid 1mm × 1mm) of the thickness particle diameter 20-40mm common brick fragment that is H2=52cm, the thickness particle diameter 8-10mm slag that is H3=39cm, thickness to be the particle diameter 4-8mm haydite of H4=32cm and thickness be H5=51cm builds wet land filler (wet land filler porosity is 30.15%), bed bottom sloping 1% in wetland bed tagma.Wet land system plantation wild rice stem, mullet grass, rye grass and photinia glabra, and airduct 3 is pulled out in installation.Sewage treatment plant tail water is after water pipe collecting is collected by regulated valve introducing water collecting basin, enter in distributing trough through overflow weir 1 overflow, carry out homogeneous through its rear end cloth waterwall 2 pairs of tail water more all to measure, enter wetland bed tagma associating physics, chemistry, biological method carry out deep purifying process to tail water, its aftertreatment water from flow through water distribution wall homogeneous all measure come settling region precipitation remove large granular impurity, come together in clean water basin through overflow weir overflow again, the tail water after process is arranged outward by by-pass valve control.
Embodiment 2
As shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, process tailwater quantity 21m
3the overall specification of multistage packing subsurface flow formula artificial swamp of/d is L × B × H=17.96m × 5.24m × 2.00m, it is divided into 5 regions, build along tail water water (flow) direction water collecting basin I that length is L1=1.0m successively, clean water basin V that settling region IV that wetland bed tagma III that distributing trough II that length is L2=1.0m, length are L3=12m, length are L4=1.0m and length are L5=1.0m, its entirety is built by pseudo-ginseng wall brick and is formed, and wherein distributing trough and settling region separate (wall is furnished with spacing be the aperture of 300mm be the aperture of 20mm) with two or four brick cloth waterwalls respectively.Filling thickness is the particle diameter 40-50mm gravel of H1=26cm successively, the clay seam (every layer separates with the gauze of grid 1mm × 1mm) of the thickness particle diameter 20-40mm common brick fragment that is H2=52cm, the thickness particle diameter 8-10mm slag that is H3=39cm, thickness to be the particle diameter 4-8mm haydite of H4=32cm and thickness be H5=51cm builds wet land filler (wet land filler porosity is 34.51%), bed bottom sloping 1% in wetland bed tagma.Wet land system plantation wild rice stem, mullet grass, rye grass and photinia glabra, and airduct 3 is pulled out in installation.Sewage treatment plant tail water is after water pipe collecting is collected by regulated valve introducing water collecting basin, enter in distributing trough through overflow weir 1 overflow, carry out homogeneous through its rear end cloth waterwall 2 pairs of tail water more all to measure, enter wetland bed tagma associating physics, chemistry, biological method carry out deep purifying process to tail water, its aftertreatment water from flow through water distribution wall homogeneous all measure come settling region precipitation remove large granular impurity, come together in clean water basin through overflow weir overflow again, the tail water after process is arranged outward by by-pass valve control.
Embodiment 3
As shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, process tailwater quantity 56m
3the overall specification of multistage packing subsurface flow formula artificial swamp of/d is L × B × H=26.96m × 4.74m × 2.00m, it is divided into 5 regions, build along tail water water (flow) direction water collecting basin I that length is L1=1.0m successively, clean water basin V that settling region IV that wetland bed tagma III that distributing trough II that length is L2=1.0m, length are L3=21m, length are L4=1.0m and length are L5=1.0m, its entirety is built by pseudo-ginseng wall brick and is formed, and wherein distributing trough and settling region separate (wall is furnished with spacing be the aperture of 300mm be the aperture of 20mm) with two or four brick cloth waterwalls respectively.Filling thickness is the particle diameter 40-50mm gravel of H1=26cm successively, the clay seam (every layer separates with the gauze of grid 1mm × 1mm) of the thickness particle diameter 20-40mm common brick fragment that is H2=52cm, the thickness particle diameter 8-10mm slag that is H3=39cm, thickness to be the particle diameter 4-8mm haydite of H4=32cm and thickness be H5=51cm builds wet land filler (wet land filler porosity is 33.46%), bed bottom sloping 1% in wetland bed tagma.Wet land system plantation wild rice stem, mullet grass, rye grass and photinia glabra, and airduct 3 is pulled out in installation.Sewage treatment plant tail water is after water pipe collecting is collected by regulated valve introducing water collecting basin, enter in distributing trough through overflow weir 1 overflow, carry out homogeneous through its rear end cloth waterwall 2 pairs of tail water more all to measure, enter wetland bed tagma associating physics, chemistry, biological method carry out deep purifying process to tail water, its aftertreatment water from flow through water distribution wall homogeneous all measure come settling region precipitation remove large granular impurity, come together in clean water basin through overflow weir overflow again, the tail water after process is arranged outward by by-pass valve control.
Embodiment 4
As shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, process tailwater quantity 84m
3the overall specification of multistage packing subsurface flow formula artificial swamp of/d is L × B × H=26.96m × 6.74m × 2.00m, it is divided into 5 regions, build along tail water water (flow) direction water collecting basin I that length is L1=1.0m successively, clean water basin V that settling region IV that wetland bed tagma III that distributing trough II that length is L2=1.0m, length are L3=21m, length are L4=1.0m and length are L5=1.0m, its entirety is built by pseudo-ginseng wall brick and is formed, and wherein distributing trough and settling region are built cloth waterwall with two or four wall bricks respectively and separated (wall is furnished with spacing be the aperture of 300mm be the aperture of 20mm).Filling thickness is the particle diameter 40-50mm gravel of H1=26cm successively, the clay seam (every layer separates with the gauze of grid 1mm × 1mm) of the thickness particle diameter 20-40mm common brick fragment that is H2=52cm, the thickness particle diameter 8-10mm slag that is H3=39cm, thickness to be the particle diameter 4-8mm haydite of H4=32cm and thickness be H5=51cm builds wet land filler (wet land filler porosity is 33.12%), bed bottom sloping 1% in wetland bed tagma.Wet land system plantation wild rice stem, mullet grass, rye grass and photinia glabra, and airduct 3 is pulled out in installation.Sewage treatment plant tail water is after water pipe collecting is collected by regulated valve introducing water collecting basin, enter in distributing trough through overflow weir 1 overflow, carry out homogeneous through its rear end cloth waterwall 2 pairs of tail water more all to measure, enter wetland bed tagma associating physics, chemistry, biological method carry out deep purifying process to tail water, its aftertreatment water from flow through water distribution wall homogeneous all measure come settling region precipitation remove large granular impurity, come together in clean water basin through overflow weir overflow again, the tail water after process is arranged outward by by-pass valve control.
Claims (1)
1. a multistage packing artificial wetland method of construction, comprises the construction of artificial swamp structure, thin portion, wetland bed tagma builds, pond body surrounding pool wall is built, it is characterized in that:
Described artificial swamp structure is built: overall specification is long × wide × dark (L × B × H), be divided into 5 regions, water collecting basin, distributing trough, wetland bed tagma, settling region and clean water basin are built successively along tail water water (flow) direction, its entirety is built by pseudo-ginseng wall brick and is formed, and wherein distributing trough and settling region separate (wall is furnished with aperture) with two or four brick cloth waterwalls respectively.Sewage treatment plant tail water is after water pipe collecting is collected by regulated valve introducing water collecting basin, enter in distributing trough through overflow weir overflow, carry out homogeneous through its rear end cloth waterwall to tail water more all to measure, enter and the wetland bed tagma associating physics, chemistry, the biological method that pull out airduct are housed deep purifying process is carried out to tail water, its aftertreatment water from flow through water distribution wall homogeneous all measure come settling region precipitation remove large granular impurity, come together in clean water basin through overflow weir overflow again, the tail water after process is arranged outward by by-pass valve control.
Thin portion, described wetland bed tagma builds: particle diameter 40-50mm gravel is filled in wetland bed tagma successively, particle diameter 20-40mm common brick fragment, particle diameter 8-10mm slag, particle diameter 4-8mm haydite, clay seam (every layer separates with the gauze of grid 1mm × 1mm) build wet land filler, bed bottom sloping 1%.Wetland bed collocation plantation wild rice stem, photinia glabra, mullet grass and rye grass, and be mounted with and pull out airduct.Artificial swamp selects the wild rice stem in vegetative period, mullet grass, rye grass and photinia glabra to transplant in the present invention, intake immediately after plant transplanting, make the water surface close to wetland topsoil, after 1 week, wetland plant starts restoration ecosystem, thus allows the environment transplanting plant adaptation artificial wet land system also grow and wetland bed biofilm.
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| CN201510828544.1A CN105366817A (en) | 2015-11-25 | 2015-11-25 | Multi-stage filler constructed wetland construction method |
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| CN201510828544.1A CN105366817A (en) | 2015-11-25 | 2015-11-25 | Multi-stage filler constructed wetland construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107777782A (en) * | 2017-11-13 | 2018-03-09 | 中国地质科学院水文地质环境地质研究所 | Contaminated land spring Water quality restoration conservation integral device |
| CN108658235A (en) * | 2017-12-11 | 2018-10-16 | 北京林业大学 | Drowned flow artificial wet land, its construction method and the sewage water denitrification handling method of sewage water denitrification processing |
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| US20070199893A1 (en) * | 2002-06-17 | 2007-08-30 | Worrell Water Technologies, Llc | Tidal Vertical Flow Wastewater Treatment System and Method |
| CN101293708A (en) * | 2007-04-25 | 2008-10-29 | 宝山钢铁股份有限公司 | Artificial wet land and uses thereof |
| CN101851023A (en) * | 2010-03-26 | 2010-10-06 | 北京神州瑞霖环保科技有限公司 | Underflow type constructed wetland system with coke powder-steel slag compound filler |
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2015
- 2015-11-25 CN CN201510828544.1A patent/CN105366817A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070199893A1 (en) * | 2002-06-17 | 2007-08-30 | Worrell Water Technologies, Llc | Tidal Vertical Flow Wastewater Treatment System and Method |
| CN101293708A (en) * | 2007-04-25 | 2008-10-29 | 宝山钢铁股份有限公司 | Artificial wet land and uses thereof |
| CN101851023A (en) * | 2010-03-26 | 2010-10-06 | 北京神州瑞霖环保科技有限公司 | Underflow type constructed wetland system with coke powder-steel slag compound filler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107777782A (en) * | 2017-11-13 | 2018-03-09 | 中国地质科学院水文地质环境地质研究所 | Contaminated land spring Water quality restoration conservation integral device |
| CN107777782B (en) * | 2017-11-13 | 2020-04-07 | 中国地质科学院水文地质环境地质研究所 | Water quality restoration and conservation integrated device for polluted surface spring |
| CN108658235A (en) * | 2017-12-11 | 2018-10-16 | 北京林业大学 | Drowned flow artificial wet land, its construction method and the sewage water denitrification handling method of sewage water denitrification processing |
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