CN221254241U - Anti-blocking up-flow constructed wetland - Google Patents
Anti-blocking up-flow constructed wetland Download PDFInfo
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- CN221254241U CN221254241U CN202323278153.6U CN202323278153U CN221254241U CN 221254241 U CN221254241 U CN 221254241U CN 202323278153 U CN202323278153 U CN 202323278153U CN 221254241 U CN221254241 U CN 221254241U
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Abstract
The utility model relates to an anti-blocking up-flow type constructed wetland, which comprises a water distribution unit, an artificial wetland filtering unit, a water collecting unit, a filler dredging device and a photovoltaic power generation device, wherein the water distribution unit comprises a water distribution tank, a grid and a water distribution gate, the artificial wetland filtering unit comprises an artificial wetland anti-seepage main body, graded broken stones and shale porous bricks which are distributed in a crossed manner are arranged at the inner bottom of the artificial wetland anti-seepage main body, the graded broken stones and the shale porous bricks form a flow guide layer, a pebble supporting layer, a composite filler layer, a pebble layer, planting soil and wetland plants are sequentially arranged above the flow guide layer, the water collecting unit comprises a water collecting tank, a submerged fan and a gate, and the filler dredging device comprises a submerged sewage pump, a sewage well and a blow-down gate. The constructed wetland is washed and dredged for about 3 to 5 months, so that the operation efficiency of the constructed wetland is greatly improved, and the problem that the traditional constructed wetland filler is easy to block is effectively avoided.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to an anti-blocking up-flow constructed wetland.
Background
In sewage treatment, the constructed wetland is generally used as a post-treatment process and is mostly used for purifying tail water of a sewage treatment plant (station), so that pollutants in the tail water are further reduced. At present, the traditional constructed wetland is divided into two forms of vertical flow and horizontal flow according to the flow direction of water, the flow direction of the water body of the traditional vertical flow constructed wetland is mostly from top to bottom, the water body of the traditional vertical flow constructed wetland penetrates through the filler layer by relying on the self gravity of the water body, and sewage is purified under the multiple effects of microbial decomposition, filler adsorption filtration, wetland plant absorption and utilization and the like. The common problems of the traditional constructed wetland are as follows: the water quality of the inlet water is strictly required, when the water quality is poor, impurities and propagated microorganisms can cause the blockage of filler gaps, the blockage is difficult to dredge, and the attenuation of the treated water is fast; the pollutant removal load is low, so that the occupied area of the wetland is large, and the wetland is easy to be impacted by water in the treatment process.
Therefore, the anti-blocking up-flow constructed wetland is developed to become an optimal solution, the anti-blocking up-flow constructed wetland does not need to consider the hydraulic gradient and the aspect ratio, the occupied area is small, and the land utilization rate is high.
Disclosure of utility model
The utility model aims to solve the problems, and provides an anti-blocking up-flow constructed wetland, which solves the problem that the constructed wetland is easy to block and can improve the phenomena of low load of removing wetland pollutants, easy blocking of filling gaps, large occupied area and the like.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the anti-blocking up-flow constructed wetland comprises a water distribution unit, an artificial wetland filtering unit, a water collecting unit, a filler dredging device and a photovoltaic power generation device, wherein the water distribution unit comprises a water distribution tank, a grating and a water distribution gate, a water inlet is formed in the outer side wall of the water distribution tank and is connected with a tap water pipe, the grating is arranged at the bottom of one side of the water distribution tank, the right side of the top of the water distribution tank is provided with the water distribution gate, the bottom of one side of the water distribution tank is provided with a water outlet and is connected with the artificial wetland filtering unit, the artificial wetland filtering unit comprises an artificial wetland impermeable main body, graded broken stone and shale porous bricks which are distributed in a crossing manner are arranged at the inner bottom of the artificial wetland impermeable main body, a flow guide layer is formed by the graded broken stone and shale porous bricks, a pebble supporting layer, a crushed stone layer, a planting soil and wetland plant are sequentially arranged above the flow guide layer, an overflow port is formed in one side of the crushed stone layer, a water collecting unit is arranged on the right side of the artificial wetland impermeable main body, the water collecting unit comprises a pond, a sedimentation fan is arranged in the water collecting pond, a water inlet is arranged on the pipeline and is connected with a water collecting fan; the filler dredging device comprises a submersible sewage pump, a sewage well and an emptying gate, wherein a secondary pipeline II is arranged on the submersible sewage pump and connected with the sewage well, and the bottom of the constructed wetland seepage-proof main body is provided with a hole and connected with the emptying gate through a pipeline.
Further: the photovoltaic power generation device is connected with a submerged fan in the water collecting tank and a submersible sewage pump in the filler dredging device, and provides power.
Further: the laying gap of the shale porous bricks is 200mm, the thickness of the shale porous bricks is 300mm, and crushed stones with particle sizes of 50-80 mm are filled.
Further: the grid adopts an orifice plate grid with the aperture phi 10,
Further: the seepage prevention of the constructed wetland seepage prevention main body adopts C25 concrete with the thickness of 200mm,
Further: the composite filler layer is high-efficiency denitrification ceramsite and zeolite, the particle size is 5mm, the filling thickness is 500mm, and the porosity is 35%.
Further: the wind pressure of the submerged fan is 0.25MPa, the air quantity required by each 100m 2 constructed wetland is 5m 3/min, and the submerged fan is used for regional dredging.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, the water flow direction is changed, water flows into the wetland from bottom to top, the inlet water is filtered through the precipitation of shale porous bricks under the action of gravity, impurities are precipitated, and the wetland is provided with a plurality of fillers: the pebble supporting layer, the composite packing layer and the gravel layer are filled, the packing has a higher efficient adsorption and filtration effect, the microbial flora quantity is improved, the effect of removing organic matters through biochemical reaction is more obvious, meanwhile, the constructed wetland is provided with a water collecting unit and a packing dredging device, the functions of water flushing and air dredging are achieved, and the water collecting unit and the packing dredging device convert light energy into electric energy through a photovoltaic power generation device to provide power for the operation of the photovoltaic power generation device. The constructed wetland is washed and dredged for about 3 to 5 months, so that the operation efficiency of the constructed wetland is greatly improved, and the problem that the traditional constructed wetland filler is easy to block is effectively avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only for more clearly illustrating the embodiments of the present utility model or the technical solutions in the prior art, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged view of a portion of an accessory pipe according to the present utility model;
In the figure: the device comprises a 1-water distribution tank, a 2-grid, a 3-water distribution gate, a 4-constructed wetland seepage-proof main body, 5-graded broken stone, 6-shale porous bricks, a 7-pebble supporting layer, an 8-composite filler layer, a 9-rubble layer, 10-planting soil, 11-wetland plants, a 12-water collection tank, a 13-gate, a 14-submerged fan, a 15-drain well, a 16-submerged drain pump, a 17-emptying gate and an 18-photovoltaic power generation device.
Detailed Description
The utility model will be further described with reference to specific examples, which are intended to be illustrative only and not to be limiting of the utility model, in order to enable those skilled in the art to better understand the technical solutions of the utility model.
The anti-blocking up-flow constructed wetland shown in fig. 1 consists of a water distribution unit, a constructed wetland filtering unit, a water collecting unit, a filler dredging device and a photovoltaic power generation device, wherein the water distribution unit comprises a water distribution tank 1, a grid 2 and a water distribution gate 3; the artificial wetland filtering unit comprises an artificial wetland impermeable main body 4, graded broken stone 5 and shale porous bricks 6 which are distributed in a crossed manner are arranged at the inner bottom of the artificial wetland impermeable main body 4, the graded broken stone 5 and the shale porous bricks 6 form a flow guiding layer, and a pebble supporting layer 7, a composite packing layer 8, a gravel layer 9, planting soil 10 and wetland plants 11 are sequentially arranged above the flow guiding layer; the water collecting unit comprises a water collecting tank 12, a submerged fan 14 and a gate 13; the filler dredging device comprises a submersible sewage pump 16, a sewage well 15 and an emptying gate 17.
The water inlet is arranged on the outer side wall of the distribution tank 1 and is connected with a tap water pipe, a grid 2 is arranged at the bottom of one side of the distribution tank 1, which is close to the water inlet, the grid 2 adopts a pore plate grid with the aperture phi 10, a distribution gate 3 is arranged on the right side of the top of the distribution tank 1, a water outlet is arranged at the bottom of one side of the distribution tank 1 and is connected with an artificial wetland seepage-proof main body 4 of an artificial wetland filtering unit, pipe network inflow water enters the distribution tank and filters sundries in inflow water through the grid 2, and then enters the artificial wetland filtering unit through the distribution gate 3, the distribution gate 3 is used for blocking inflow water when adjusting wetland inflow water and filler backflushing, the constructed wetland seepage-proofing main body 4 mainly aims at preventing water from penetrating and losing, after water enters the constructed wetland seepage-proofing main body 4 and is further trapped, precipitated and adsorbed by the graded broken stone 5 and the shale porous bricks 6, and part of impurities and pollutants are mixed in the water, the water enters the pebble supporting layer 7 after being filled with a diversion layer formed by the graded broken stone 5 and the shale porous bricks 6, the pebble supporting layer 7 mainly aims at supporting the composite filler layer 8 and upper materials thereof, water flows into the composite filler layer 8 after passing through the pebble supporting layer 7, and the composite filler layer 8 consists of more than two fillers with larger surface areas: the high-efficiency denitrification ceramsite and zeolite consists of high-efficiency denitrification ceramsite and zeolite, water treated by the composite filler layer 8 reaches the discharge standard, enters the crushed stone layer 9 and is discharged from a measured overflow port, and planting soil 10 is arranged above the crushed stone layer 9 to provide growth matrixes and nutrition for wetland plants 11.
The thicknesses of the crushed stone layer 9 and the planting soil 10 are 200mm; the filling thickness of the composite filler layer 8 is 500mm, the particle size is 5mm, and the porosity is 35%; the thickness of the diversion layer and the pebble supporting layer 7 which are composed of graded broken stone 5 and shale perforated bricks 6 is 300mm.
The right side of the constructed wetland seepage-proofing main body 4 is provided with a water collecting unit, the water collecting unit comprises a water collecting tank 12, a submerged fan 14 is arranged in the water collecting tank 12, an auxiliary pipeline I is arranged on the submerged fan 14 and connected with an overflow port of the crushed stone layer 9, holes with the spacing of 100mm and phi 10 are uniformly arranged at the lower part of the auxiliary pipeline, and a gate 13 is arranged at a water inlet of the water collecting tank 12; the water outlet of the constructed wetland seepage-proofing main body 4 enters the water collecting tank, as the water inlet part of the water collecting tank 12 is provided with the gate 13, the hydraulic retention time in the constructed wetland seepage-proofing main body 4 can be controlled by adjusting the opening degree of the gate 13, the hydraulic retention time can be properly increased when the water quality of the inlet water is poor, the removal rate of organic matters is ensured, and the water level in the water collecting tank 12 reaches the overflow liquid level and then is discharged or recycled.
The filler dredging device comprises a submersible sewage pump 16, a sewage well 15 and an emptying gate 17, wherein a secondary pipeline II is arranged on the submersible sewage pump 16 and connected with the sewage well 15, and the bottom of the constructed wetland seepage-proof main body 4 is provided with a hole and connected with the emptying gate 17 through a pipeline.
The utility model is mainly realized by hydraulic flushing and dredging, when the wetland is blocked, a water distribution gate is closed, an emptying gate is opened, water flows downwards under the action of gravity to flush the pores of a composite filler layer and impurities filtered in a guide layer formed by graded broken stone and shale porous bricks, the flushed wastewater enters a sewage well of a filler dredging device through a pipeline at the inner bottom of an artificial wetland seepage-proof main body, when the liquid level in the sewage well reaches a certain height, a submerged fan is started to convey the wastewater to a water distribution tank for circulating treatment, after the hydraulic flushing is finished, the submerged fan is started to perform air dredging, an accessory pipeline of the submerged fan is arranged in the broken stone layer, the lower part of the accessory pipeline is uniformly provided with holes with the spacing of 100mm and phi 10, the high-flow-rate air passes through the holes to further purge the pores of the composite filler layer, so that the dredging effect is achieved, and the photovoltaic power generation device is a complete set of equipment and converts the light energy into electric energy and provides electric power for the submerged fan and a submersible pump.
According to the utility model, the water flow direction is changed, water flows into the wetland from bottom to top, the inlet water is filtered through the precipitation of shale porous bricks under the action of gravity, impurities are precipitated, and the wetland is provided with a plurality of fillers: the pebble supporting layer, the composite packing layer and the gravel layer are filled, the packing has a higher efficient adsorption and filtration effect, the microbial flora quantity is improved, the effect of removing organic matters through biochemical reaction is more obvious, meanwhile, the constructed wetland is provided with a water collecting unit and a packing dredging device, the functions of water flushing and air dredging are achieved, and the water collecting unit and the packing dredging device convert light energy into electric energy through a photovoltaic power generation device to provide power for the operation of the photovoltaic power generation device. The constructed wetland is washed and dredged for about 3 to 5 months, so that the operation efficiency of the constructed wetland is greatly improved, and the problem that the traditional constructed wetland filler is easy to block is effectively avoided.
The utility model is not described in detail in the prior art.
The foregoing is merely a preferred embodiment of the present utility model and is not limited to the description and embodiments. All such equivalent changes and modifications of the construction, feature and principle described in the claims should be made to the present utility model.
Claims (7)
1. The utility model provides a prevent blockking up-flow constructed wetland, includes water distribution unit, constructed wetland filter unit, water collecting unit, filler pull throughs, photovoltaic power generation device, its characterized in that: the water distribution unit comprises a water distribution tank (1), a grid (2) and a water distribution gate (3), a water inlet is formed in the outer side wall of the water distribution tank (1) and is connected with a tap water pipe, the grid (2) is arranged at the bottom of one side, close to the water inlet, of the water distribution tank (1), the water distribution gate (3) is arranged on the right side of the top of the water distribution tank (1), a water outlet is formed in the bottom of one side of the water distribution tank (1) and is connected with an artificial wetland filtering unit, the artificial wetland filtering unit comprises an artificial wetland impermeable main body (4), grading gravels (5) and shale porous bricks (6) which are distributed in a cross mode are arranged at the bottom of the artificial wetland impermeable main body (4), a diversion layer is formed by the grading gravels (5) and the shale porous bricks (6), a pebble supporting layer (7), a composite filler layer (8), a gravel layer (9), planting soil (10) and wetland plants (11) are sequentially arranged above the diversion layer, an overflow port is formed in one side of the gravel layer, a sedimentation unit is arranged on the right side of the artificial wetland impermeable main body (4), the sedimentation unit comprises a sedimentation unit, and a water collecting fan (12) is arranged in the water collecting tank (14), and a water collecting fan (14) is arranged in the water collecting tank (14); the filler dredging device comprises a submersible sewage pump (16), a sewage well (15) and an emptying gate (17), wherein a secondary pipeline II is arranged on the submersible sewage pump (16) and connected with the sewage well (15), and the bottom of the constructed wetland seepage-proof main body is provided with a hole and connected with the emptying gate (17) through a pipeline.
2. The anti-clogging upflow constructed wetland according to claim 1, wherein: the photovoltaic power generation device (18) is connected with a submerged fan (14) in the water collecting tank (12) and a submersible sewage pump (16) in the filler dredging device, and provides power.
3. The anti-clogging upflow constructed wetland according to claim 1, wherein: the laying gap of the shale porous bricks (6) is 200mm, the thickness of the shale porous bricks is 300mm, and crushed stones with the particle size of 50-80 mm are filled.
4. The anti-clogging upflow constructed wetland according to claim 1, wherein: the grid (2) adopts an orifice plate grid with the aperture phi 10.
5. The anti-clogging upflow constructed wetland according to claim 1, wherein: the seepage prevention of the constructed wetland seepage prevention main body (4) adopts C25 concrete with the thickness of 200 mm.
6. The anti-clogging upflow constructed wetland according to claim 1, wherein: the composite filler layer (8) is high-efficiency denitrification ceramsite and zeolite, the particle size is 5mm, the filling thickness is 500mm, and the porosity is 35%.
7. The anti-clogging upflow constructed wetland according to claim 1, wherein: the wind pressure of the submerged fan (14) is 0.25MPa, the required air quantity of each 100m 2 of constructed wetlands is 5m 3/min, and the dredging is carried out in different areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323278153.6U CN221254241U (en) | 2023-12-01 | 2023-12-01 | Anti-blocking up-flow constructed wetland |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323278153.6U CN221254241U (en) | 2023-12-01 | 2023-12-01 | Anti-blocking up-flow constructed wetland |
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| Publication Number | Publication Date |
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| CN221254241U true CN221254241U (en) | 2024-07-02 |
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| CN202323278153.6U Active CN221254241U (en) | 2023-12-01 | 2023-12-01 | Anti-blocking up-flow constructed wetland |
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| CN (1) | CN221254241U (en) |
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- 2023-12-01 CN CN202323278153.6U patent/CN221254241U/en active Active
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