CN211999046U

CN211999046U - Artificial suspension wetland structure for rural river-entering sewage draining outlet

Info

Publication number: CN211999046U
Application number: CN201922284022.6U
Authority: CN
Inventors: 曹磊芳; 李元奇
Original assignee: Guizhou Survey and Design Research Institute for Water Resources and Hydropower
Current assignee: Guizhou Survey and Design Research Institute for Water Resources and Hydropower
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-11-24
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses an artificial suspended wetland structure for rural river sewage outlets, which is formed by splicing a plurality of floating unit bodies, wherein the floating unit bodies are spliced into a whole by the tooth buckle occlusion 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 utility model have the form nimble, do not account for the ground, adaptation topography can the reinforce, but mill's prefabrication, do not have the excavation and fill, and the construction is simple and convenient, and construction period is short, adapts to the water level variation, and is pleasing to the eye, advantages such as treatment effect is good.

Description

Artificial suspension wetland structure for rural river-entering sewage draining outlet

Technical Field

The utility model belongs to the technical field of hydraulic and hydroelectric engineering and ecological environment, in particular to an artificial suspension wetland structure for rural river sewage outfall.

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, a utility model with publication number 109368933a, applied by shanghai landscaping construction limited company, discloses an adjustable artificial wetland system, 1) a pretreatment system, sewage is subjected to a regulating tank through a grid, and the grid can intercept larger suspended particles and floating objects in the water 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.

And the utility model with the publication number of 109678248A applied by Shenzhen Shenke Garden shares Limited discloses a pretreatment method of high suspended matter wastewater, which consists of 3 constructed wetland monomers running in parallel, wherein each monomer runs for 3.5 days and has a rest for 7 days, and each constructed wetland monomer consists of a bed body, a water inlet pipe, a water distribution pipe, a matrix, a water collection pipe, a drain 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.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an it is not enough to overcome present constructed wetland and occupy the place that land or river bank protection construction brought, easily be submerged and destroy, the construction period is long, a series of problems such as excavation and fill cost height, an artificial suspension wetland structure is provided, can suspend on the surface of water, the form is nimble, elegant appearance, the construction is simple and convenient, but the mill is prefabricated, construction period short grade advantage, can also make purifying effect good through control sewage stream flow path length, owing to be that the cell cube combination forms, through cell cube plant species collocation, reach the most reasonable blowdown effect. The water level change adaptability is strong, and the human environment can be beautified.

The technical scheme of the utility model 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 utility model have the form nimble, do not account for the ground, the adaptation topography ability reinforce, but mill's prefabrication, no excavation fill, the construction is simple and convenient, construction period is short, adapts to the water level variation, and is pleasing to the eye, and the treatment effect is good, advantages such as recoverable reuse.

Drawings

Fig. 1 is a plan view 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "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 meaning 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 utility model discloses a constructed wetland is constituteed by a plurality of cell cube amalgamations, has demonstrated in fig. 2 that float cell cube one 1, floats cell cube two 2, floats the structural style that cell cube three 3 carries out the connection, and the section structure that combines the different positions of fig. 3 and 4 show can clearly be seen, and the tooth through side wall 4 and bottom plate 10 between the cell cube is detained the interlock concatenation city wholly, and the tooth is detained the position at cell cube side wall junction 6. 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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

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.