CN212610141U - A wetland purifier for algae moisture tail water treatment - Google Patents
A wetland purifier for algae moisture tail water treatment Download PDFInfo
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- CN212610141U CN212610141U CN202021174230.7U CN202021174230U CN212610141U CN 212610141 U CN212610141 U CN 212610141U CN 202021174230 U CN202021174230 U CN 202021174230U CN 212610141 U CN212610141 U CN 212610141U
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Abstract
The utility model relates to a wetland purification device for algae-laden water separation tail water treatment, which comprises a regulating reservoir (1), a biological strengthening treatment pool (2), a multistage oxidation pond (3), a surface flow wetland system (4), a subsurface flow wetland system (5), a natural wetland system (6) and a water collecting pool (7) which are connected in sequence, wherein a group of filtering devices (8) are arranged between the regulating reservoir (1) and the biological strengthening treatment pool (2), and biological fillers and aeration discs are arranged in the biological strengthening treatment pool (2) and the multistage oxidation pond (3); a group of emergent aquatic plant belts (4 a) are arranged in the surface flow wetland system (4); an ecological filter dam (9) consisting of an ecological bag (9 a), a filter medium (9 b) and a wood pile retaining wall (9 c) is arranged in the subsurface flow wetland system (5). The utility model has the advantages that effective purification treatment algae-laden water separation tail water, make full use of abandonment soil resources beautifies natural landscape, green, energy-efficient.
Description
Technical Field
The utility model belongs to the technical field of ecological wetland sewage treatment technique and specifically relates to a wetland purifier for algae-laden water separation tail water treatment.
Background
At present, algae are broken by the algae water separation process, the concentration of organic matters, nitrogen, phosphorus and other pollutants in the generated tail water is obviously increased, and if the tail water is directly discharged without treatment, the peripheral environment and the water body of the Taihu lake are necessarily adversely affected. In order to meet the requirement of blue algae fishing, the capacity expansion treatment is carried out by partial algae-water separation stations, the content of pollutants in tail water exceeds the bearing range of the ecological wetland, in addition, more greenhouse vegetable and fruit, seedling planting and other facility agriculture and aquaculture are distributed along the line, non-point source pollutants such as chemical fertilizers, pesticides and the like finally enter the Taihu lake through lake-entering river flow, certain pollution load is added to the Taihu lake water, idle lands such as waste ponds along the line are not fully and effectively utilized, and resource waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to solve the current wetland clean system bearing capacity little, the limited problem of purifying effect, provides a wetland purifier for algae-laden water separation tail water treatment, not only can carry out effective purification treatment to algae-laden water separation tail water, but also can make full use of abandonment soil resource, green, energy-efficient.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a wetland purification device for algae-laden water separation tail water treatment comprises an adjusting tank, wherein the adjusting tank is connected with a biological strengthening treatment tank, a group of filtering devices are arranged at the front end of the biological strengthening treatment tank, and a group of first biological fillers and a group of first aeration discs are arranged in the biological strengthening treatment tank and are used for primary filtering and impurity adsorption;
the biological strengthening treatment tank is connected with a multi-stage oxidation pond, and a group of second biological fillers and a group of second aeration discs are arranged in the multi-stage oxidation pond and are used for further removing COD, ammonia nitrogen, total nitrogen and the like;
the multi-stage oxidation pond is connected with a surface flow wetland system, and a group of emergent aquatic plant belts are arranged in the surface flow wetland system so as to absorb, adsorb and convert nitrogen, phosphorus and the like through root systems of emergent aquatic plants;
the surface flow wetland system is connected with an undercurrent wetland system, the rear end of the undercurrent wetland system is provided with an ecological filter dam, the ecological filter dam comprises a group of ecological bags stacked up and down, each ecological bag is internally provided with a filter medium, and the outer side of each ecological bag is connected with a row of wood pile retaining walls for ensuring double filtration of water flow in the horizontal and vertical directions when the water flow passes through the ecological filter dam;
the subsurface flow wetland system is connected with a natural wetland system, and the natural wetland system is further connected with a collecting tank for collecting clear water after being filtered and purified layer by layer.
Furthermore, ecological floating beds are arranged on the biological strengthening treatment tank, the multistage oxidation pond and the natural wetland system to play the roles of purification and beauty.
Furthermore, a group of landscape islands are arranged in the surface flow wetland system, the subsurface flow wetland system and the natural wetland system to build a relatively high terrain and play roles in guiding and shunting water flow and beautifying landscape.
Further, the filtering device is a filtering dam or a filtering screen.
Further, the filter medium is composed of a porous filter material.
Furthermore, the ecological bag is made of organic polymer composite materials such as polypropylene and the like.
The ecological filter dam of the utility model is formed by stacking the ecological bags filled with porous filter materials instead of the traditional sealed concrete retaining wall or mortar blocks, the ecological bags are made of polypropylene and other high polymer materials, and have strong corrosion resistance, microbial decomposition resistance, ultraviolet resistance, easy plant growth and long service life; porous filtering materials are filled in the ecological bags, after the ecological bags are filled, the ecological bags are stacked in a staggered mode between every two layers and are tightly combined through special connecting buckle accessories, and meanwhile, a row of dense wood piles are arranged on the outer side of each ecological bag for reinforcement. The filtering dam constructed by the ecological bag not only plays a role of a retaining wall and forces water flow to generate a vertical flow direction, but also can enable partial water flow to be purified directly through the filtering and adsorbing action of the ecological bag due to the fact that the porous filtering material filled in the filtering dam has good water permeability and enters a subsequent processing unit.
In the technical scheme of the utility model, the algae-laden water is effectively purified and separated from the tail water through the combined action of the pre-strengthening treatment of the front end, the layer-by-layer filtration of the middle part and various novel filtering dams, so that the tail water reaches the standard and is discharged; the ecological bag is made of 100% polypropylene filament non-woven geotextile, has the advantages of high strength, ultraviolet resistance and good ageing resistance, has long service life, is not degraded, nontoxic, harmless, pollution-free, recyclable and good water permeability, has the characteristics of reverse filtration function and water and soil conservation, and can intercept tail water easily and suspended solids such as silt and the like; meanwhile, a plank road, a revetment landscape zone and the like can be added in the ecological system, waste land resources are fully utilized, the wetland is beautified, the environment is purified, and the ecological system is green, environment-friendly, efficient and energy-saving.
Drawings
FIG. 1 is a schematic structural view of the wetland purification device for algae-laden water separation tail water treatment of the present invention;
FIG. 2 is a schematic structural view of the ecological filtering dam of the present invention;
FIG. 3 is a flow chart of the wetland purification method for algae-laden water separation tail water treatment of the utility model.
Detailed Description
Example 1
In order to make the present invention more clearly understood, the following description is made with reference to the accompanying drawings, and the embodiments described herein are only used for explaining the present invention and are not intended to limit the present invention.
Referring to fig. 1, a wetland purification device for algae-laden water separation tail water treatment is characterized in that:
the device comprises a regulating tank 1, wherein the regulating tank 1 is connected with a biological enhancement treatment tank 2, a group of filtering devices 8 are arranged at the front end of the biological enhancement treatment tank, and a group of first biological fillers 2a and a group of first aeration discs 2b are arranged in the biological enhancement treatment tank 2 and are used for primarily filtering and adsorbing impurities;
the biological strengthening treatment tank 2 is connected with a multi-stage oxidation pond 3, and a group of second biological fillers 3a and a group of second aeration discs 3b are arranged in the multi-stage oxidation pond 3 and are used for further removing COD, ammonia nitrogen, total nitrogen and the like;
the multistage oxidation pond 3 is connected with a surface flow wetland system 4, a group of emergent aquatic plant belts 4a are arranged in the surface flow wetland system 4, and the emergent aquatic plant belts 4a are distributed over the whole surface flow wetland system 4 so as to absorb, adsorb and convert nitrogen, phosphorus and the like through root systems of emergent aquatic plants;
referring to fig. 1 and 2, the surface flow wetland system 4 is connected with an underflow wetland system 5, and the rear end of the underflow wetland is provided with an ecological filter dam 9, the ecological filter dam 9 comprises a group of ecological bags 9a stacked up and down, each ecological bag 9a is internally provided with a filter medium 9b, the outer side of each ecological bag 9a is connected with a row of timber pile retaining walls 9c for supporting, and when the water flow passes through the ecological filter dam, the water flow is subjected to double filtration in the horizontal direction and the vertical direction;
the filter medium 9b is made of a porous filter material, and the ecological bag 9a is made of organic polymer composite materials such as polypropylene and the like;
the subsurface flow wetland system 5 is connected with a natural wetland system 6, and the natural wetland system 6 is further connected with a collecting tank 7 for collecting clear water after being filtered and purified layer by layer;
ecological floating beds 10 are arranged on the biological strengthening treatment tank 2, the multistage oxidation pond 3 and the natural wetland system 6 to play the roles of purification and beauty.
The multistage oxidation pond 3, the surface flow wetland system 4, the subsurface flow wetland system 5 and the natural wetland system 6 of the utility model are all provided with a plank road 12, and a revetment landscape zone 13 or a floating bed landscape zone 11 is arranged around each system;
a group of landscape islands 14 are arranged in the surface flow wetland system 4, the subsurface flow wetland system 5 and the natural wetland system 6 to build relatively high topography and play roles in guiding and shunting water flow and beautifying landscape.
The wetland purification method for algae-laden water separation tail water treatment by using the device comprises the following specific steps, and is characterized by comprising the following steps:
(1) the algae-laden water separation tail water firstly flows into the regulating tank 1 to regulate the fluctuation of the water quality and maintain the relatively uniform and stable water quality of the inlet water;
(2) the stabilized tail water is primarily filtered by a filtering device 8 and then enters a biological enhanced treatment tank 2, a first aeration disc 2b in the tank is fully aerated and acts together with efficient microorganisms on a first biological filler 2a to enhance and degrade organic matters and ammonia nitrogen contained in the sewage;
(3) the tail water after the strengthening treatment flows into a multi-stage oxidation pond 3, and a second aeration disc 3b and a second biological filler 3a in the pond purify the tail water again to further remove COD, ammonia nitrogen, total nitrogen and the like in the tail water;
(4) tail water after secondary purification flows into the surface flow wetland system 4, and emergent aquatic plant root systems and wetland soil microorganisms in the surface flow wetland system 4 absorb, adsorb and convert nitrogen, phosphorus and the like;
(5) then flows into the subsurface flow wetland system 5, and graded materials such as gravel, ceramsite, quartz sand are distributed in the subsurface flow wetland system, so that impurities in the tail water body are filtered, and oxygen is added to the water body;
(6) then the tail water passes through an ecological filter dam 9 at the tail end of the subsurface flow wetland system 5, the ecological filter dam 9 forces most of the water flow to be vertically filtered downwards, and a part of the water flow directly and transversely permeates an ecological bag 9a and is purified after being filtered and adsorbed by a filter medium 9 b;
(7) the treated tail water flows into a natural wetland system 6, floating leaves, submerged plants and a floating bed are arranged in the natural wetland system, the submerged plants mainly comprise hydrilla verticillata and tape grass, local aeration and deep purification are carried out, and the landscape function is also considered;
(8) and finally, the tail water after layer-by-layer filtration and purification flows into a water collecting tank 7 for recycling.
In the utility model, the ecological filter dam is formed by stacking the ecological bags filled with porous filter materials instead of the traditional sealed concrete retaining wall or mortar blocks, the ecological bags are made of polypropylene and other high polymer materials, and have strong corrosion resistance, microbial decomposition resistance, ultraviolet resistance, easy plant growth and long service life; porous filtering materials are filled in the ecological bags, after the ecological bags are filled, the ecological bags are stacked in a staggered mode between every two layers and are tightly combined through special connecting buckle accessories, and meanwhile, a row of dense wood piles are arranged on the outer side of each ecological bag for reinforcement. The filtering dam constructed by the ecological bag not only plays a role of a retaining wall and forces water flow to generate a vertical flow direction, but also can enable partial water flow to be purified directly through the filtering and adsorbing action of the ecological bag due to the fact that the porous filtering material filled in the filtering dam has good water permeability and enters a subsequent processing unit.
The algae-laden water separation tail water is effectively purified through the combined action of pre-strengthening treatment at the front end, layer-by-layer filtering at the middle part and various novel filtering dams, so that the algae-laden water separation tail water is discharged up to the standard, meanwhile, waste land resources are fully utilized, the wetland is beautified, the environment is purified, and the method is green, environment-friendly, efficient and energy-saving.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (6)
1. A wetland purifier for algae-laden water separation tail water treatment which characterized in that:
comprises a regulating tank (1), wherein the regulating tank (1) is connected with a biological strengthening treatment tank (2), the front end of the biological strengthening treatment tank is provided with a group of filtering devices (8), and a group of first biological fillers (2 a) and a group of first aeration discs (2 b) are arranged in the biological strengthening treatment tank (2);
the biological strengthening treatment tank (2) is connected with a multi-stage oxidation pond (3), and a group of second biological fillers (3 a) and a group of second aeration discs (3 b) are arranged in the multi-stage oxidation pond (3);
the multi-stage oxidation pond (3) is connected with a surface flow wetland system (4), and a group of emergent aquatic plant belts (4 a) are arranged in the surface flow wetland system (4);
the surface flow wetland system (4) is connected with an undercurrent wetland system (5), an ecological filter dam (9) is arranged in the undercurrent wetland system (5), the ecological filter dam (9) comprises a group of ecological bags (9 a) which are stacked up and down, a filter medium (9 b) is arranged in each ecological bag (9 a), and the outer side of each ecological bag (9 a) is connected with a row of wooden pile retaining walls (9 c);
the subsurface flow wetland system (5) is connected with a natural wetland system (6), and the natural wetland system (6) is connected with a water collecting tank (7).
2. The wetland purification device for algae-laden water separation tail water treatment according to claim 1, characterized in that:
the ecological bag (9 a) is made of an organic polymer composite material.
3. The wetland purification device for algae-laden water separation tail water treatment according to claim 1 or 2, characterized in that:
the filter medium (9 b) is made of a porous filter material.
4. The wetland purification device for algae-laden water separation tail water treatment according to claim 1 or 2, characterized in that:
ecological floating beds (10) are arranged on the biological strengthening treatment tank (2), the multi-stage oxidation pond (3) and the natural wetland system (6).
5. The wetland purification device for algae-laden water separation tail water treatment according to claim 1 or 2, characterized in that:
the filtering device (8) is a filtering dam or a filtering screen.
6. The wetland purification device for algae-laden water separation tail water treatment according to claim 1 or 2, characterized in that:
landscape islands (14) are respectively arranged in the surface flow wetland system (4), the subsurface flow wetland system (5) and the natural wetland system (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021174230.7U CN212610141U (en) | 2020-06-23 | 2020-06-23 | A wetland purifier for algae moisture tail water treatment |
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| CN202021174230.7U CN212610141U (en) | 2020-06-23 | 2020-06-23 | A wetland purifier for algae moisture tail water treatment |
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| CN212610141U true CN212610141U (en) | 2021-02-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762962A (en) * | 2020-06-23 | 2020-10-13 | 江苏三正华禹环境工程有限公司 | Wetland purification device and method for algae-laden water separation tail water treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762962A (en) * | 2020-06-23 | 2020-10-13 | 江苏三正华禹环境工程有限公司 | Wetland purification device and method for algae-laden water separation tail water treatment |
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