CN212476451U - Reinforced ecological initial rainwater treatment system - Google Patents
Reinforced ecological initial rainwater treatment system Download PDFInfo
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- CN212476451U CN212476451U CN202020584887.4U CN202020584887U CN212476451U CN 212476451 U CN212476451 U CN 212476451U CN 202020584887 U CN202020584887 U CN 202020584887U CN 212476451 U CN212476451 U CN 212476451U
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Abstract
The utility model provides a reinforceed ecotype initial stage rainwater processing system, its characterized in that: the system comprises an efficient sedimentation tank unit and an artificial wetland unit, wherein the efficient sedimentation tank unit and the artificial wetland unit are sequentially arranged in the water flow direction to form a whole system. And high-performance fillers are filled in the matrix of the artificial wetland unit in a layering manner according to the particle size in the vertical direction. The first substrate layer of the artificial wetland unit is 200mm thickPlanting soil, the second substrate layer of the artificial wetland unit is 250mm thick
The water layer is distributed by the gravels, and the third substrate layer of the artificial wetland unit is 250mm thick
The thickness of the substrate layer four of the volcanic rock and the artificial wetland unit is 250mm
Ceramsite, wherein the fifth matrix layer of the artificial wetland unit is 250mm thick
Rubble water collection layer. A reinforceed ecological initial stage rainwater processing system, under the condition of low investment, low running cost, handle the initial stage rainwater to carry out ecological retrieval and utilization.
Description
Technical Field
The utility model belongs to ecological environmental protection field especially relates to an ecological initial stage rainwater processing system who strengthens.
Background
With the acceleration of the urbanization process, the urban hard underlying surface is rapidly increased. Rainfall flushes buildings, roads and the like to form rainwater runoff, which carries a large amount of pollutants and becomes one of main causes of urban water environment pollution. Especially, the pollution load of the initial rainwater is far higher than that of the middle and later rainwater, and the water ecological environment is greatly damaged if the initial rainwater is not treated. At present, the treatment method of initial rainwater mainly comprises the steps of building an initial rainwater storage tank, and discharging the initial rainwater after the rainwater enters an urban sewage treatment plant for treatment in a staggered mode. But this will undoubtedly increase the operation burden of the municipal sewage treatment plant and even break the stable operation condition of the municipal sewage treatment plant.
Disclosure of Invention
In view of the above, the present invention is directed to a reinforced ecological initial rainwater treatment system, which is used to treat the initial rainwater and perform ecological recycling under the conditions of low investment and low operation cost.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a system for treating initial rainwater of intensive ecotype which characterized in that: the system comprises a high-efficiency sedimentation tank unit and an artificial wetland unit, wherein the high-efficiency sedimentation tank unit and the artificial wetland unit are sequentially arranged in the water flow direction to form a whole system, the high-efficiency sedimentation tank unit is of a groove shape, the bottom end of one side of the high-efficiency sedimentation tank unit is provided with a water inlet, the top end of the other side of the high-efficiency sedimentation tank unit is provided with a water outlet, and a coagulant and a flocculant are arranged in the high-efficiency sedimentation tank unit; the water outlet is communicated with the top end of the artificial wetland unit through a water pipe; the artificial wetland unit is internally provided with a substrate, the substrate is filled with fillers in a layering manner according to the particle size from small to large, and the artificial wetland unit comprises a substrate layer I, a substrate layer II, a substrate layer III, a substrate layer IV and a substrate layer V from top to bottom; an interlayer is arranged between each two matrix layers; a water distribution trunk pipe is embedded in the second substrate layer, and a water collection trunk pipe is embedded at the bottom end of the fifth substrate layer.
Further, the first substrate layer is planting soil with the thickness of 200mm, and the second substrate layer is planting soil with the thickness of 250mm
The water distribution layer of the macadam is 250mm thick
Volcanic rock, the matrix layer four is 250mm thick
Ceramsite, wherein the five substrate layers are 250mm thick
Rubble water collection layer.
Further, the interlayer is non-woven fabric/geotextile.
Furthermore, an impermeable layer is laid between the retaining wall and the substrate of the artificial wetland unit.
Further, aquatic plants are planted in the first matrix layer.
Furthermore, the water distribution branch pipe is vertically connected with the water distribution main pipe, and the water distribution branch pipe extends around the water distribution main pipe in a shape like a Chinese character feng.
Furthermore, a water collecting branch pipe is vertically connected to the water collecting main pipe, and the water collecting branch pipe extends in a shape like a Chinese character feng around the water collecting main pipe.
Compared with the prior art, a reinforceed ecotype initial stage rainwater processing system have following advantage:
(1) a reinforceed ecological initial stage rainwater processing system, the impact of initial stage rainwater can effectively be alleviated to constructed wetland to high-efficient sedimentation tank unit, delays constructed wetland's jam, the throughput and the effect of improvement constructed wetland unit that can show. The advantages of the high-efficiency sedimentation tank unit and the artificial wetland unit in the reinforced ecological initial rainwater treatment system are complemented, and pollutants in a suspended state and a dissolved state are respectively removed.
(2) A reinforceed ecological initial stage rainwater processing system, constructed wetland unit's matrix is according to the particle diameter layering fill high performance filler, can high-efficiently get rid of organic pollutant, nitrogen and the phosphorus in the initial stage rainwater.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural view of an enhanced ecological initial rainwater treatment system according to an embodiment of the present invention;
fig. 2 is a schematic view of an artificial wetland structure provided by the embodiment of the utility model;
fig. 3 is a schematic view of a water distribution pipe distribution structure provided by the embodiment of the present invention.
Description of reference numerals:
1-high-efficiency sedimentation tank; 2-artificial wetland; 21-substrate layer one; 22-water distribution main pipe; 23-aquatic plants; 24-matrix layer two; 25-matrix layer three; 26-matrix layer four; 27-stromal layer five; 28-water collecting main pipe; 29-non-woven/geotextile; 210-barrier layer; 211-water distribution branch pipe.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
A reinforced ecological initial rainwater treatment system is shown in figures 1 to 3 and comprises a high-efficiency sedimentation tank unit 1 and an artificial wetland unit 2, wherein the high-efficiency sedimentation tank unit 1 and the artificial wetland unit 2 are sequentially arranged in the water flow direction to form a whole system, the high-efficiency sedimentation tank unit 1 is in a groove shape, the bottom end of one side of the high-efficiency sedimentation tank unit 1 is provided with a water inlet, the top end of the other side of the high-efficiency sedimentation tank unit 1 is provided with a water outlet, and a coagulant and a flocculant are arranged in the high-efficiency sedimentation tank unit 1; the water outlet is communicated with the top end of the artificial wetland unit 2 through a water pipe; the artificial wetland unit 2 is internally provided with a substrate, the substrate is filled with fillers in layers from small to large according to the particle size, and the artificial wetland unit 2 comprises a first substrate layer 21, a second substrate layer 24, a third substrate layer 25, a fourth substrate layer 26 and a fifth substrate layer 27 from top to bottom; an interlayer is arranged between each two matrix layers; the water distribution main pipe 22 is embedded in the second matrix layer 24, and the water collection main pipe 28 is embedded at the bottom end of the fifth matrix layer 27. The high-efficiency sedimentation tank unit 1 can effectively relieve the impact of initial rainwater on the artificial wetland, delay the blockage of the artificial wetland and remarkably improve the treatment capacity and effect of the artificial wetland unit 1. The advantages of the high-efficiency sedimentation tank unit 1 and the artificial wetland unit 2 in the reinforced ecological initial rainwater treatment system are complemented, and pollutants in a suspended state and a dissolved state are respectively removed.
Further, the first substrate layer 21 is planting soil with the thickness of 200mm, and the second substrate layer 24 is planting soil with the thickness of 250mm
The water distribution layer of the macadam is 250mm thick
Volcanic rock, the four 26 matrix layers are 250mm thick
Haydite, the five substrate layers 27 are 250mm thick
A gravel water-collecting layer; the volcanic rock of the third 25 matrix layer has good physical and chemical properties and is a high-quality artificial wetland filler. As a natural filler, the natural filler has the advantages of light weight, good chemical stability, proper strength, rough surface, developed pores and reasonable distribution, and is very suitable for the propagation and growth of microorganisms. Under an aerobic-anoxic-anaerobic microenvironment, the adsorption and assimilation of organic matters by microorganisms, the nitrification and denitrification of nitrogen and the adsorption and absorption of phosphorus are facilitated. Organic pollutants, nitrogen, phosphorus and the like can be effectively removed; the ceramsite of the matrix layer four 26 can be fired by various solid wastes such as fly ash, bottom mud, sludge, blast furnace slag, garbage and the like, and plays a role of treating wastes with processes of wastes against one another. As the ceramsite has large specific surface area and is rich in elements such as calcium, iron, aluminum and the like, the ceramsite can form insoluble sediment with phosphate in sewage, thereby being beneficial to deeply removing phosphorus(ii) a The five substrate layers 27 are gravels with larger grain diameters, and are provided with water collecting main pipes 28 and water collecting branch pipes vertically connected with the water collecting main pipes, so that the water can be collected quickly and uniformly.
Further, the interlayer is a non-woven fabric/geotextile 29.
Further, an impermeable layer 210 is laid between the retaining wall and the substrate of the artificial wetland unit 2.
Furthermore, the aquatic plants 23 are planted in the first substrate layer 21, the first substrate layer 21 is selected to plant the aquatic plants 23 which are developed in root system and strong in dirt-removing capability and are suitable for local climate growth, and the root system of the aquatic plants 23 plays a role in dredging blockage and oxygen delivery and is also a carrier for microorganism fixation.
Furthermore, the water distribution branch pipes 211 are vertically connected to the water distribution main pipe 22, and the water distribution branch pipes 211 extend around the water distribution main pipe 22 in a shape like a Chinese character feng, so that water distribution is uniform.
Furthermore, a water collecting branch pipe is vertically connected to the water collecting main pipe 28, the water collecting branch pipe extends in a shape like a Chinese character feng around the water collecting main pipe, and water is uniformly collected.
An enhanced ecological type initial rainwater treatment system is shown in figures 1 to 3 and comprises a high-efficiency sedimentation tank 1 and an artificial wetland 2, wherein initial rainwater flows through the high-efficiency sedimentation tank 1 and then flows through the artificial wetland 2. The artificial wetland adopts a downward flow vertical subsurface flow mode, and the initial rainwater sequentially flows through the second substrate layer 24, the third substrate layer 25, the fourth substrate layer 26 and the fifth substrate layer 27 from top to bottom.
Coagulant and flocculant are added into the high-efficiency sedimentation tank 1, so that suspended matters in initial rainwater are efficiently removed, and partial organic matters, phosphorus, heavy metals and the like are removed.
The second substrate layer 24 in the artificial wetland 2 is a water distribution layer, the initial rainwater is uniformly distributed through the water distribution main pipe 22 and the water distribution branch pipes 211 vertically connected with the main pipe, and the water distribution branch pipes 211 are distributed in a shape like a Chinese character feng around the water distribution main pipe 22.
Volcanic rock of the third 25 matrix layer in the artificial wetland 2 has good physical and chemical properties and is a high-quality artificial wetland filler. As a natural filler, the natural filler has the advantages of light weight, good chemical stability, proper strength, rough surface, developed pores and reasonable distribution, and is very suitable for the propagation and growth of microorganisms. Under an aerobic-anoxic-anaerobic microenvironment, the adsorption and assimilation of organic matters by microorganisms, the nitrification and denitrification of nitrogen and the adsorption and absorption of phosphorus are facilitated. Can effectively remove organic pollutants, nitrogen, phosphorus and the like.
The ceramsite of the fourth 26 matrix layers in the artificial wetland 2 can be fired by various solid wastes such as fly ash, bottom mud, sludge, blast furnace slag, garbage and the like, and plays a role of treating wastes with processes of wastes against one another. As the ceramsite has large specific surface area and is rich in elements such as calcium, iron, aluminum and the like, the ceramsite can form insoluble sediment with phosphate in sewage, and the ceramsite is favorable for deeply removing phosphorus.
The five substrate layers 27 in the artificial wetland 2 are gravels with larger grain diameters, and a water collecting main pipe 28 and a water collecting branch pipe vertically connected with the water collecting main pipe are arranged, so that the rapid and uniform water collection is facilitated.
The first 21 substrate layer in the artificial wetland 2 is selected from aquatic plants 23 which have developed planting root systems and strong dirt-removing power and are suitable for local climate growth.
The non-woven fabrics/geotextiles 29 are laid among different substrate layers in the artificial wetland 2, so that the construction is convenient, and the wetland substrate mixed layer in the later operation can be prevented.
The utility model discloses in an intensive ecotype initial stage rainwater processing system, the flow is simple, on the decontamination mechanism, divides the worker clear and definite, and the advantage is complementary, is a ecological initial stage rainwater treatment technology of being worth recommending.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a system for treating initial rainwater of intensive ecotype which characterized in that: the system comprises a high-efficiency sedimentation tank unit (1) and an artificial wetland unit (2), wherein the high-efficiency sedimentation tank unit (1) and the artificial wetland unit (2) are sequentially arranged in the water flow direction to form a whole system, the high-efficiency sedimentation tank unit (1) is of a groove shape, a water inlet is formed in the bottom end of one side of the high-efficiency sedimentation tank unit (1), a water outlet is formed in the top end of the other side of the high-efficiency sedimentation tank unit (1), and a coagulant and a flocculant are arranged in the high-efficiency sedimentation tank unit (1); the water outlet is communicated with the top end of the artificial wetland unit (2) through a water pipe; the artificial wetland unit (2) is internally provided with a substrate, the substrate is filled with fillers in a layering mode according to the particle size from small to large, and the artificial wetland unit (2) comprises a first substrate layer (21), a second substrate layer (24), a third substrate layer (25), a fourth substrate layer (26) and a fifth substrate layer (27) from top to bottom; an interlayer is arranged between each two matrix layers; a water distribution main pipe (22) is embedded in the second substrate layer (24), and a water collection main pipe (28) is embedded at the bottom end of the fifth substrate layer (27).
2. An enhanced ecotype initial rainwater treatment system according to claim 1, wherein: the first substrate layer (21) is planting soil with the thickness of 200mm, and the second substrate layer (24) is planting soil with the thickness of 250mm
The water layer is distributed by the crushed stones, and the third (25) matrix layer is 250mm thick
Volcanic rock, the matrix layer four (26) is 250mm thick
Ceramsite, wherein the five (27) substrate layers are 250mm thick
Rubble water collection layer.
3. An enhanced ecotype initial rainwater treatment system according to claim 2, wherein: the interlayer is a non-woven fabric/geotextile (29).
4. An enhanced ecotype initial rainwater treatment system according to claim 2, wherein: and an impermeable layer (210) is laid between the retaining wall and the substrate of the artificial wetland unit (2).
5. An enhanced ecotype initial rainwater treatment system according to claim 2, wherein: and planting aquatic plants (23) in the first matrix layer (21).
6. An enhanced ecotype initial rainwater treatment system according to claim 2, wherein: the water distribution branch pipes (211) are vertically connected with the water distribution main pipe (22), and the water distribution branch pipes (211) extend around the water distribution main pipe (22) in a shape like a Chinese character feng.
7. An enhanced ecotype initial rainwater treatment system according to claim 2, wherein: and a water collecting branch pipe is vertically connected to the water collecting main pipe (28), and the water collecting branch pipe extends around the water collecting main pipe in a shape like a Chinese character feng.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020584887.4U CN212476451U (en) | 2020-04-20 | 2020-04-20 | Reinforced ecological initial rainwater treatment system |
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| CN202020584887.4U CN212476451U (en) | 2020-04-20 | 2020-04-20 | Reinforced ecological initial rainwater treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057298A (en) * | 2021-08-27 | 2022-02-18 | 南京工业大学 | Simple constructed wetland system and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114057298A (en) * | 2021-08-27 | 2022-02-18 | 南京工业大学 | Simple constructed wetland system and construction method thereof |
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