CN110845016A - Artificial suspension wetland structure for rural river-entering sewage discharge outlet and sewage treatment method - Google Patents
Artificial suspension wetland structure for rural river-entering sewage discharge outlet and sewage treatment method Download PDFInfo
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- CN110845016A CN110845016A CN201911309946.5A CN201911309946A CN110845016A CN 110845016 A CN110845016 A CN 110845016A CN 201911309946 A CN201911309946 A CN 201911309946A CN 110845016 A CN110845016 A CN 110845016A
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- 239000010865 sewage Substances 0.000 title claims abstract description 37
- 238000011282 treatment Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000000725 suspension Substances 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000007667 floating Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000002689 soil Substances 0.000 claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000011369 optimal treatment Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 238000011049 filling Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 12
- 239000010410 layer Substances 0.000 description 7
- 239000002351 wastewater Substances 0.000 description 5
- 239000000178 monomer Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydroponics (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses an artificial suspended wetland structure for a rural river sewage discharge outlet and a sewage treatment method, wherein a plurality of floating unit bodies are spliced to form an artificial wetland, and the floating unit bodies are spliced into a whole through tooth buckles of a side wall and a bottom plate; the upper surface of the bottom plate of the floating unit body is provided with a cavity communicated with the atmosphere, soil is filled in the cavity, and a solid planting net is arranged on the surface layer; planting purified aquatic plants in the soil; the artificial wetland is provided with a sewage channel. The technical scheme of the invention has the advantages of flexible form, no land occupation, strong terrain adaptability, capability of being prefabricated in factories, no excavation and filling, simple and convenient construction, short construction period, adaptation to water level change, attractive appearance, good treatment effect and the like.
Description
Technical Field
The invention belongs to the technical field of hydraulic and hydroelectric engineering and ecological environment, and particularly relates to an artificial suspended wetland structure for a sewage discharge outlet of a rural river and a sewage treatment method.
Background
The rural domestic sewage is mainly from toilet flushing water, kitchen washing water, washing machine drainage, shower drainage and other drainage of peasants. Rural sewage mainly contains a large amount of organic matters and inorganic salts such as nitrogen, phosphorus and the like, and the current treatment measures are that domestic sewage firstly enters an anaerobic digestion tank (namely a septic tank), suspended matters in the sewage are settled to form sludge, and the sludge is naturally fermented for a certain time to degrade the organic matters. The upper clear water part is treated by the artificial wetland, and pollutants in water are removed or reduced by the dilution and degradation of multilevel organisms in the artificial water ecosystem, and finally discharged.
As a novel ecological sewage treatment technology, the artificial wetland has the advantages of low investment and operation cost, strong impact load resistance, stable treatment effect, good effluent quality, environment beautification, certain economic value of aquatic plants and the like.
In the prior art, the invention patent with the publication number of 109368933A applied by Shanghai landscaping construction Limited company discloses an adjustable artificial wetland system, 1) a pretreatment system, sewage passes through a grating to be regulated in a tank, and the grating can intercept larger particle suspended matters and floating matters in the water so as to ensure the normal operation of subsequent treatment facilities and reduce the organic load of the subsequent treatment facilities; 2) the biochemical treatment system, the equalizing basin goes out water and gets into biochemical technology, utilizes heterotrophic fungus to the degradation of organic matter, decomposes organic matter into water and carbon dioxide, and it is very high to get rid of organic matter efficiency, and the biochemical pond front end sets up the anoxic zone, with biochemical pond rear end mud backward flow to biochemical pond front end, divides into two equal systems with good oxygen system and moves side by side, can fine saving sewage treatment running cost.
The invention patent with the publication number of 109678248A applied by Shenzhen Shenke Garden shares Limited discloses a pretreatment method of high suspended matter wastewater, the pretreatment method comprises 3 constructed wetland monomers running in parallel, the monomers run in turn for 3.5 days and rest for 7 days, and the constructed wetland monomers comprise a bed body, a water inlet pipe, a water distribution pipe, a substrate, a water collection pipe, a water discharge pipe and wetland plants. The high suspended matter waste water is uniformly distributed on the wetland substrate through the water inlet pipe and the water distribution pipe, suspended matters in the waste water are intercepted, the pollutant load in the subsequent treatment process is fully reduced, the pretreated waste water is collected through the water collection pipe at the bottom of the substrate and enters a subsequent treatment facility, and the subsequent treatment facility can be an artificial wetland or a conventional biochemical treatment facility. The scheme expands the range of the pretreatment method, can effectively remove suspended solids in the high-suspended matter wastewater, and has the characteristics of reliable operation, low energy consumption, low maintenance cost and the like in the whole treatment process.
The utility model patent with the publication number of 208649068U applied by northeast university discloses a suspension type constructed wetland, which comprises a suspension air bag, wherein a pretreatment module and a depth treatment module are respectively arranged on the suspension air bag; the pretreatment module comprises an obliquely arranged water inlet pipe, the high end of the water inlet pipe is connected with a water inlet, a filter grid is arranged in the water inlet pipe, a precipitation tank is arranged below the water inlet pipe, one end of the precipitation tank is communicated with the low end of the water inlet pipe, the other end of the precipitation tank is communicated with an obliquely arranged medium layer, the bottom of the medium layer is a water-stop sheet, and aquatic plants are planted on the medium layer; the low end of the medium layer is connected with the advanced treatment module, and a chemical reaction layer, an adsorption layer and a water outlet pipe are sequentially arranged in the advanced treatment module. The suspension type constructed wetland that this scheme provided has increased the plant root microorganism kind, sets up the filtration grid simultaneously, avoids blockking up.
However, most of the existing artificial wetlands are built on bank slopes of river channels, and are built in a ladder or flat layer mode, the area of the wetland is related to the sewage discharge amount, a lot of rural river-entering sewage discharge ports are not built in enough fields, or the constructed wetland can be submerged and flushed in the flood season, the effect is poor, and the wetland needs to be excavated and filled, so that the cost is high. And a few suspension structures are inflexible and cannot adapt to local conditions. Thus, the prior art is still not ideal.
Disclosure of Invention
The invention aims to overcome a series of problems of insufficient field, easy submergence and washout, long construction period, high excavation and filling cost and the like caused by land occupation or river bank protection construction of the conventional constructed wetland, and provides an artificial suspension wetland structure which can be suspended on the water surface, has the advantages of flexible form, elegant appearance, simple and convenient construction, factory prefabrication, short construction period and the like, can achieve good purification effect by controlling the length of a sewage flow path, and can achieve the most reasonable sewage discharge effect by matching plant varieties of unit bodies due to the combination of the unit bodies. The water level change adaptability is strong, and the human environment can be beautified.
The technical scheme of the invention is as follows:
an artificial suspended wetland structure for rural river sewage outlets is characterized in that a plurality of floating unit bodies are spliced to form an artificial wetland, and the floating unit bodies are spliced into a whole through tooth buckles of side walls and a bottom plate; the upper surface of the bottom plate of the floating unit body is provided with a cavity communicated with the atmosphere, soil is filled in the cavity, and a solid planting net is arranged on the surface layer; planting and purifying aquatic plants in the soil; the artificial wetland is provided with a sewage channel.
Furthermore, a water stop strip is arranged between the tooth buckles.
Further, the floating unit body is made of materials including lightweight and pollution-free plastics.
Furthermore, the side walls and the bottom plate are internally provided with closed air chambers which are not communicated with each other.
Furthermore, fixing rings are arranged on the side faces and the top of the side wall.
Furthermore, the artificial wetland is spliced into various shapes by changing the curvature of the side walls of the floating unit bodies.
Furthermore, the sewage channel adopts a structure form of extending runoff in a winding form, a strip form or a vortex form.
Furthermore, the runoff path can be provided with aquatic plants with different purifying effects in a layered manner according to the sewage property, so that the optimal purifying effect is achieved.
Compared with the conventional bank slope constructed wetland: the technical scheme of the invention has the advantages of flexible form, no land occupation, strong terrain adaptability, factory prefabrication, no excavation and filling, simple and convenient construction, short construction period, adaptation to water level change, attractive appearance, good treatment effect, recycling and the like.
Drawings
FIG. 1 is a floor plan of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a sectional view taken along line B-B in fig. 2.
The labels in the figures are: 1-floating unit body I, 2-floating unit body II, 3-floating unit body III, 4-side wall, 5-fixing ring, 6-unit body side wall joint, 7-purifying aquatic plant, 8-water stop strip, 9-planting net, 10-bottom plate, 11-soil and 12-closed air chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the constructed wetland of the invention is formed by splicing a plurality of unit bodies, the structural form of connecting a first floating unit body 1, a second floating unit body 2 and a third floating unit body 3 is shown in fig. 2, and the sectional structures of different parts shown in fig. 3 and 4 can be clearly seen, wherein the unit bodies are spliced into a whole body by the tooth buckles of the side wall 4 and the bottom plate 10, and the tooth buckles are positioned at the connection parts 6 of the side walls of the unit bodies. And a water stop strip 8 is arranged between the tooth buckles to prevent sewage leakage. The unit body is made of light pollution-free plastic or other novel materials, and the side wall 4 and the bottom plate 10 are provided with the closed air chamber 12 and are not communicated with each other.
The side and the top of the side wall 4 are provided with fixing rings 5, and after the wetland is installed, fixing ropes penetrate into the fixing rings 5 and are finally integrally fixed on the shore to prevent drifting. The upper surface of the bottom plate 10 of the unit body is provided with a cavity communicated with the atmosphere for planting and purifying the aquatic plants 7, the unit body can be provided with a large cavity or a plurality of small cavities, soil 11, preferably organic soil, is placed in the large cavity or the small cavities, and a planting net 9 is arranged on the surface layer to prevent the plants from falling and the soil 11 from losing.
The constructed wetland can be spliced into various shapes by changing the curvature of the side walls 10 of the unit bodies, and can be designed according to the requirements of terrain or environment beautification, and only one form is shown in figure 1. The sewage channel is in a circuitous form, a strip-shaped form or a vortex form, the variety of the purified aquatic plants 7 in the unit bodies can be reasonably matched by prolonging the flow path, the combined purification of the plants finally achieves a better purification effect, the cost is low, and the installation is simple. No requirement for terrain.
In addition, the outlet of the river inlet can be provided with a corrugated expansion pipe connected with the wetland, and the corrugated expansion pipe can expand and contract along with the change of the water level, so that sewage can enter the wetland under the condition of the change of the water level.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a constructed suspension wetland structure for rural river drain, its characterized in that: the artificial wetland is formed by splicing a plurality of floating unit bodies, and the floating unit bodies are spliced into a whole through the tooth buckles of the side wall (4) and the bottom plate (10); the upper surface of a bottom plate (10) of the floating unit body is provided with a cavity communicated with the atmosphere, soil (11) is filled in the cavity, and a planting net (9) is arranged on the surface layer; purified aquatic plants (7) are planted in the soil (11); the artificial wetland is provided with a sewage channel.
2. The artificial suspended wetland structure for rural river sewage outlets according to claim 1, is characterized in that: and a water stop strip (8) is arranged between the tooth buckles.
3. The artificial suspended wetland structure for rural river sewage outlets according to claim 1, is characterized in that: the floating unit body is made of materials including lightweight non-polluting plastics.
4. The artificial suspended wetland structure for rural river sewage outlets according to claim 1, is characterized in that: and the side walls (4) and the bottom plate (10) are internally provided with closed air chambers which are not communicated with each other.
5. The artificial suspended wetland structure for rural river sewage outlets according to claim 1, is characterized in that: and fixing rings (5) are arranged on the side surfaces and the top of the side walls (4).
6. The artificial suspended wetland structure for rural river sewage outlets according to claim 1, is characterized in that: the artificial wetland is spliced into various shapes by changing the curvature of the side walls (4) of the floating unit bodies.
7. The artificial suspended wetland structure for rural river sewage outlets according to claim 1, is characterized in that: the sewage channel adopts a structure form of prolonging runoff, including a circuitous form, a strip form or a vortex form.
8. The artificial suspended wetland structure for rural river sewage outlets according to claim 1, is characterized in that: the water purification plant (7) can select different varieties of plants for layered purification according to different water quality requirements and runoff length so as to achieve the optimal treatment effect.
9. A sewage treatment method using the artificial suspended wetland structure of any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911309946.5A CN110845016A (en) | 2019-12-18 | 2019-12-18 | Artificial suspension wetland structure for rural river-entering sewage discharge outlet and sewage treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911309946.5A CN110845016A (en) | 2019-12-18 | 2019-12-18 | Artificial suspension wetland structure for rural river-entering sewage discharge outlet and sewage treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275898A (en) * | 2021-12-31 | 2022-04-05 | 广州市水之道生态环境修复有限公司 | Multifunctional water environment self-purification system |
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