CN104016542A - Ladder-type composite constructed-wetland apparatus for processing low-pollution water - Google Patents
Ladder-type composite constructed-wetland apparatus for processing low-pollution water Download PDFInfo
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- CN104016542A CN104016542A CN201410229651.8A CN201410229651A CN104016542A CN 104016542 A CN104016542 A CN 104016542A CN 201410229651 A CN201410229651 A CN 201410229651A CN 104016542 A CN104016542 A CN 104016542A
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- wetland
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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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- Treatment Of Biological Wastes In General (AREA)
Abstract
The invention belongs to the technical field of environment-engineering sewage processing, and concretely relates to a ladder-type composite constructed-wetland apparatus for processing low-pollution water. The apparatus comprises an elevated water-distribution tank, a first-grade vertical-flow constructed wetland, a second-grade composite vertical-flow constructed wetland, a third-grade subsurface-flow constructed wetland and an anaerobic water-collecting tank; the elevated water-distribution tank is a cavity with a sealed top end, the cavity is inside paved with a filler, and a water-collecting pipe net is arranged close to the bottom; ecological plants are grown surfaces layers of the first-grade vertical-flow constructed wetland, the second-grade composite vertical-flow constructed wetland and the third-grade subsurface-flow constructed wetland, matrix and fillers are used to pave in inner layers of the three kinds of constructed wetlands, and water-collecting pipe nets are arranged at bottom layers of the three kinds of constructed wetlands; and the anaerobic water-collecting tank is an underground facility, the top end is provided with a cover, and the inner layer is paved with a soft filler. The beneficial effects comprise that the apparatus is high in decontamination efficiency, low in occupied land area and construction cost, low in anaphase management cost and simple to operate, and is suitable for processing of rural domestic sewage and low-pollution water.
Description
Technical field
The invention belongs to environmental engineering technical field of sewage, be specifically related to a kind of staged combined artificial wetland device for low-pollution water processing.
Background technology
Domestic sewage in rural areas by using is the important component part of pollution of area source, it mainly contains organic metabolic waste, some animality, plant food residue and physiology excretion (urine, excrement) thing etc., also contains a large amount of non-pathogenic micro-organisms and can cause on a small quantity human infectious disease's pathogenic micro-organism.Due to the hysteresis of rural sewage treatment Facilities Construction, do not have in a large number treated sanitary sewage directly to enter irrigation canals and ditches, river, finally enter the receiving water bodies such as lake, aggravate the pollution of water surrounding.Economic base and the level of management present situation of considering rural area, the improvement of domestic sewage in rural areas by using can not be walked the technological line of big and medium-sized cities sewage disposal.Therefore, suit measures to local conditions to select the sewage treatment process of suitable, low investment, convenient management to seem especially important.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of staged combined artificial wetland device, its detersive efficiency is high, and floor space, construction cost are low, final-period management expense is low, simple to operate, is suitable for the processing of domestic sewage in rural areas by using, low-pollution water.
The invention provides a kind of staged combined artificial wetland device for low-pollution water processing, comprise high-order distributing trough, one-level vertical current constructed wetland, secondary composite vertical current artificial wetland, three grades of underflow type artificial wet lands and anaerobism water collecting basin; Described high-order distributing trough, one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands are crisscross arranged successively, and the height of locus successively decreases successively, form hierarchic structure; Described anaerobism water collecting basin is positioned at underground, and its top arranges power distribution cabinet, and inside arranges lift pump, and power distribution cabinet is transported to sewage high-order distributing trough from anaerobism water collecting basin by controlling lift pump; Wherein:
The cavity body that described high-order distributing trough is top seal, its top, bottom is equipped with collector pipe network, and top cover is provided with inspection port and shore pipe, and top cover below is provided with upflow tube; In its cavity, lay successively from top to bottom gravel bed, cobble and carry iron haydite;
Described one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of cavity configurations that underflow type artificial wet land is top end opening, described cavity top is provided with water distribution pipe network, and top, bottom is provided with collector pipe network; Water distribution pipe network in hierarchic structure in the cavity of lower rank is connected by connecting tube with the collector pipe network in the cavity of upper rank, and the collector pipe network in three grades of underflow type artificial wet land cavitys is connected with water shoot; In the cavity of described one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands, lay different fillers, wherein:
In the cavity of described one-level vertical current constructed wetland, lay successively from top to bottom gravel, cobble and soil filtration layer, on soil filtration layer, plant and have ecological vegetable;
In the cavity of described secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands, lay successively from top to bottom gravel, cobble, carry iron haydite, geotechnological layer of cloth and land percolation layer; On described land percolation layer, plant and have ecological vegetable.
In the present invention, described one-level vertical current constructed wetland upper end maintains an equal level mutually with high-order distributing trough bottom level; Secondary composite vertical current artificial wetland top is lower than the bottom of one-level vertical current constructed wetland; The middle part of the top of three grades of underflow type artificial wet lands and secondary composite vertical current artificial wetland maintains an equal level.
In the present invention, the header in described high-order distributing trough, one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands is positioned at 5～10cm place, top, bottom.
In the present invention, the land percolation layer of described one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands obtains containing organism and the fine sand of carbon rich by add rice husk and sawdust in local soil.
In the present invention, in described soil filtration layer, add earthworm.
In the present invention, in the cavity of described three grades of underflow type artificial wet lands, lowermost end is also equipped with the clay layer of 10～15cm, compacting, and bottom has the gradient of tendency water side 1% simultaneously.
In the present invention, the cavity body that described anaerobism water collecting basin is top seal, its top cover is provided with inspection port, is equipped with soft-filler in cavity.
In the present invention, between described high-order distributing trough, the water distribution pipe network of one-level vertical current constructed wetland, secondary composite vertical current artificial wetland, three grades of underflow type artificial wet lands, pass through to arrange collector pipe network, water distribution pipe network, and be connected by connecting tube, the operating method of stream falls in formation, can effectively reduce construction cost, prevent line clogging.
The invention has the advantages that:
1, adopt current vertical current through each filter material layer, interpolation earthworm prevents the mode of soil clogging, has effectively increased the contact area of water body and filter material layer, promotes the oxygen enrichment of sewage, is conducive to dirty water purification; In increasing water body and filtrate contact area, the surface load that has improved sewage treatment facility makes it to reach 1.5m
3(m
2d), effectively reduced ton water floor space.
2, utilized fully local soil, vegetation resources, has reduced construction cost and later stage operation cost.
3, utilize ecological method, adopt cobble, gravel, carries the ecomaterials such as iron haydite, non-secondary pollution, and good denitrogenation and dephosphorization effect, simple to operate, final-period management cost is low.
Brief description of the drawings
Fig. 1 is staged combined artificial wetland apparatus structure schematic diagram of the present invention.
The high-order distributing trough of number in the figure: 1-, 2-one-level vertical current constructed wetland, 3-secondary composite vertical current artificial wetland, 4 is three grades of underflow type artificial wet lands, 5 is anaerobism water collecting basin.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated.
A kind of staged combined artificial wetland device for low-pollution water processing providing in the present embodiment, its structure is as shown in Figure 1; It comprises high-order distributing trough 1, one-level vertical current constructed wetland 2, secondary composite vertical current artificial wetland 3, three grades of underflow type artificial wet lands 4 and anaerobism water collecting basins 5; High-order distributing trough 1, one-level vertical current constructed wetland 2, secondary composite vertical current artificial wetland 3 and three grades of underflow type artificial wet lands 4 are crisscross arranged successively, and the height of locus successively decreases successively, form hierarchic structure; Anaerobism water collecting basin 5 is positioned at underground, and its top arranges power distribution cabinet, and inside arranges lift pump, and power distribution cabinet is transported to sewage high-order distributing trough 1 from anaerobism water collecting basin 5 by controlling lift pump;
The cavity body that high-order distributing trough 1 is top seal, its top, bottom is equipped with collector pipe network, and top cover is provided with inspection port and shore pipe, and top cover below is provided with upflow tube; In its cavity, lay successively from top to bottom gravel bed, cobble and carry iron haydite; One-level vertical current constructed wetland 2, secondary composite vertical current artificial wetland 3 and three grades of cavity configurations that underflow type artificial wet land 3 is top end opening, its cavity top is provided with water distribution pipe network, and top, bottom is provided with collector pipe network; Water distribution pipe network in hierarchic structure in the cavity of lower rank is connected by connecting tube with the collector pipe network in the cavity of upper rank, and the collector pipe network in three grades of underflow type artificial wet land 3 cavitys is connected with water shoot.
In the present embodiment, the concrete technical parameter of the above-mentioned staged combined artificial wetland device of employing is as follows:
High-order distributing trough 1: size (internal diameter): 7m × 1m × 1m; Carry iron haydite: particle diameter is 2 ~ 4cm, and laying depth is 40cm; Cobble: particle diameter 4 ~ 6cm, laying depth is 20cm; Gravel: particle diameter 2 ~ 4cm, laying depth is 20cm.
One-level vertical current constructed wetland 2: size (internal diameter): 7m × 1m × 1.5m; Top layer plant: local common reed and calamus; Soil filtration layer thickness is 30cm; Cobble: particle diameter 4 ~ 6cm, laying depth is 20cm; Gravel: particle diameter 2 ~ 4cm, laying depth is 40cm.
Secondary composite vertical current artificial wetland 3: size (internal diameter): 7m × 1m × 2m; Top layer plant: local common reed and calamus; Soil filtration layer thickness is 35cm; Carry iron haydite: particle diameter is 2 ~ 4cm, and laying depth is 50cm; Cobble: particle diameter 4 ~ 6cm, laying depth is 15cm; Gravel: particle diameter 2 ~ 4cm, laying depth is 50cm; Between soil filtration layer and year iron haydite, lay the permeable geotextile of one deck.
Three grades of underflow type artificial wet lands 4: size (internal diameter): 7m × 2m × 2m; Top layer plant: local common reed and calamus; Soil filtration layer thickness is 25cm; Carry iron haydite: particle diameter is 2 ~ 4cm, and laying depth is 40cm; Cobble: particle diameter 4 ~ 6cm, laying depth is 10cm; Gravel: particle diameter 2 ~ 4cm, laying depth is 40cm; Between soil filtration layer and year iron haydite, lay the permeable geotextile of one deck.
Anaerobism water collecting basin 5: the water conservancy residence time is 24h; Size (internal diameter) 6.5m × 2m × 1m;
Plant area area 50m
2, apparatus surface load is about 1.5m
3/ (m
2d).
The present invention utilizes above-mentioned staged vertical flow constructed wetland device, can be used for processing the low-pollution water of 5 ~ 100 ton per days.Detailed process is as follows:
1, anaerobism water collecting basin 5 will be entered after the preliminary treatments such as grid by sewage network after sewage collecting; Lift pump in water collecting basin, inputs sewage in high-order distributing trough 1 operation of power distribution cabinet control lift pump by water pipe.
2, sewage arrives after high-order distributing trough 1, by three layers of filler, carries iron haydite, and cobble and gravel, after processing
Sewage enter one-level vertical current constructed wetland 2 by collector pipe network.
3, the sewage of collecting from the collector pipe network of high-order distributing trough 1 is by the water distributor of one-level vertical current constructed wetland 2
Net, vertical current is through the zone of vegetation and each filter material layer; Enter again the water distribution pipe network of secondary composite vertical current artificial wetland 3 by the collector pipe network of one-level vertical current constructed wetland 2 bottoms, sewage vertical current through the zone of vegetation, soil filtration layer, carry iron haydite, cobble and gravel bed.
4, sewage enters three grades of underflow type artificial wet lands 4 through the collector pipe network of secondary composite vertical current artificial wetland 3, and current are directly discharged through water shoot from the perforation header of three grades of underflow type artificial wet land 4 bottoms.
By above-mentioned steps, the water quality situation of the water inlet obtaining and water outlet is as follows:
Water inlet: COD=325.66mg/L, TP=5.536mg/L, TN=21.54mg/L, NH
4 +-N=17.116mg/L.
Water outlet: COD=20.01mg/L, TP=0.88mg/L, TN=5.48mg/L, NH
4 +-N=0.91mg/L.
Claims (7)
1. for a staged combined artificial wetland device for low-pollution water processing, it is characterized in that: comprise a high position
Distributing trough, one-level vertical current constructed wetland, secondary composite vertical current artificial wetland, three grades of underflow type artificial wet lands and anaerobism water collecting basin; Described high-order distributing trough, one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands are crisscross arranged successively, and the height of locus successively decreases successively, form hierarchic structure; Described anaerobism water collecting basin is positioned at underground, and its top arranges power distribution cabinet, and inside arranges lift pump, and power distribution cabinet is transported to sewage high-order distributing trough from anaerobism water collecting basin by controlling lift pump;
Wherein:
The cavity body that described high-order distributing trough is top seal, its top, bottom is equipped with collector pipe network, and top cover is provided with inspection port and shore pipe, and top cover below is provided with upflow tube; In its cavity, lay successively from top to bottom gravel bed, cobble and carry iron haydite;
Described one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands are the cavity configuration of top end opening, and described cavity top is provided with water distribution pipe network, and top, bottom is provided with collector pipe network; Water distribution pipe network in hierarchic structure in the cavity of lower rank is connected by connecting tube with the collector pipe network in the cavity of upper rank, and the collector pipe network in three grades of underflow type artificial wet land cavitys is connected with water shoot; In the cavity of described one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands, lay different fillers, wherein:
In the cavity of described one-level vertical current constructed wetland, lay successively from top to bottom gravel, cobble and soil filtration layer, on soil filtration layer, plant and have ecological vegetable;
In the cavity of described secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands, lay successively from top to bottom gravel, cobble, carry iron haydite, geotechnological layer of cloth and land percolation layer; On described land percolation layer, plant and have ecological vegetable.
2. staged combined artificial wetland device according to claim 1, is characterized in that: described one-level vertical current constructed wetland upper end maintains an equal level mutually with high-order distributing trough bottom level; Secondary composite vertical current artificial wetland top is lower than the bottom of one-level vertical current constructed wetland; The middle part of the top of three grades of underflow type artificial wet lands and secondary composite vertical current artificial wetland maintains an equal level.
3. staged combined artificial wetland device according to claim 1, is characterized in that: the header in described high-order distributing trough, one-level vertical current constructed wetland, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands is positioned at 5～10cm place, top, bottom.
4. staged combined artificial wetland device according to claim 1, is characterized in that: described one-level perpendicular flow artificial is wet
The land percolation layer of ground, secondary composite vertical current artificial wetland and three grades of underflow type artificial wet lands obtains containing organism and the fine sand of carbon rich by add rice husk and sawdust in local soil.
5. according to the staged combined artificial wetland device described in claim 1 or 4, it is characterized in that: in described soil filtration layer, add earthworm.
6. staged combined artificial wetland device according to claim 1, is characterized in that: in the cavity of described three grades of underflow type artificial wet lands, lowermost end is also equipped with the clay layer of 10～15cm, and bottom has the gradient of tendency water side 1% simultaneously.
7. staged combined artificial wetland device according to claim 1, is characterized in that: the cavity body that described anaerobism water collecting basin is top seal, its top cover is provided with inspection port, is equipped with soft-filler in cavity.
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| CN201410229651.8A CN104016542B (en) | 2014-05-28 | 2014-05-28 | A kind of staged combined artificial wetland device for low-pollution water process |
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| CN201410229651.8A CN104016542B (en) | 2014-05-28 | 2014-05-28 | A kind of staged combined artificial wetland device for low-pollution water process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104787897A (en) * | 2015-04-27 | 2015-07-22 | 河海大学 | Purification method of drained water of farmlands directly adjacent to rivers through shore wetlands |
| CN105236673A (en) * | 2015-10-12 | 2016-01-13 | 桂林市春晓环保科技有限公司 | Kitchen sewage treatment method |
| CN110330195A (en) * | 2019-08-21 | 2019-10-15 | 贵州工业职业技术学院 | A kind of drop wetland case treatment process of sewage |
| CN110589980A (en) * | 2019-10-15 | 2019-12-20 | 星景生态环保科技（苏州）有限公司 | Multistage ecological bank protection clean system |
| CN111648298A (en) * | 2020-04-16 | 2020-09-11 | 上海中汇水生态科技有限公司 | Ecological revetment for preventing water and soil loss |
| CN112723551A (en) * | 2020-12-30 | 2021-04-30 | 北京中冶设备研究设计总院有限公司 | Modular sewage treatment device and sewage treatment method based on artificial wetland |
| CN114314852A (en) * | 2021-12-31 | 2022-04-12 | 江苏环保产业股份有限公司 | Sewage treatment system based on constructed wetland |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787897A (en) * | 2015-04-27 | 2015-07-22 | 河海大学 | Purification method of drained water of farmlands directly adjacent to rivers through shore wetlands |
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| CN112723551A (en) * | 2020-12-30 | 2021-04-30 | 北京中冶设备研究设计总院有限公司 | Modular sewage treatment device and sewage treatment method based on artificial wetland |
| CN114314852A (en) * | 2021-12-31 | 2022-04-12 | 江苏环保产业股份有限公司 | Sewage treatment system based on constructed wetland |
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| CN104016542B (en) | 2015-10-07 |
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Inventor after: Zheng Zheng Inventor after: Huang Wei Inventor after: Luan Xiaonan Inventor after: Zhang Jibiao Inventor after: Li Jihua Inventor after: Zhang Liangjie Inventor after: Tian Yunfei Inventor before: Zheng Zheng Inventor before: Huang Wei Inventor before: Luan Xiaonan Inventor before: Zhang Jibiao Inventor before: Li Jihua Inventor before: Zhang Liangjie |
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Free format text: CORRECT: INVENTOR; FROM: ZHENG ZHENG HUANG WEI LUAN XIAONAN ZHANG JIBIAO LI JIHUA ZHANG LIANGJIE TO: ZHENG ZHENG HUANG WEI LUAN XIAONAN ZHANG JIBIAO LI JIHUA ZHANG LIANGJIE TIAN YUNFEI |
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Granted publication date: 20151007 Termination date: 20180528 |