CN210928951U - Plant planting device for contact oxidation between gravels - Google Patents
Plant planting device for contact oxidation between gravels Download PDFInfo
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- CN210928951U CN210928951U CN201921409326.4U CN201921409326U CN210928951U CN 210928951 U CN210928951 U CN 210928951U CN 201921409326 U CN201921409326 U CN 201921409326U CN 210928951 U CN210928951 U CN 210928951U
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Abstract
The utility model discloses a plant planting device that is used for contact oxidation between gravel, include: the planting module is of a hollow tubular structure, a plurality of groups of through holes are formed in the planting module, and each group of through holes are formed in the same vertical surface; planting soil is arranged in the planting module; the gravel bed module comprises a gravel bed body, a water inlet pipe and a water outlet pipe; the planting module is arranged on the gravel bed body, the gravel bed body sequentially comprises a first gravel layer and a second gravel layer from top to bottom, and the filler particle size of the first gravel layer is larger than that of the second gravel layer; the water inlet pipe is connected to the second gravel layer, and the water outlet pipe is connected to the first gravel layer; and the aeration module is arranged between the first gravel layer and the second gravel layer. In this way, the utility model discloses can absorb the plant, contact technologies such as oxidation and constructed wetland construction effectively combine between the gravel, improve the survival of plant in the gravel interconversion oxidation technology structure.
Description
Technical Field
The utility model relates to a plant species plants technical field, especially relates to a plant species plants device that is used for contact oxidation between gravel.
Background
The essence of the contact oxidation process between gravels is a man-made simulation and engineering strengthening technology for biofilm growing on the surface of gravels in a natural river bed. The river has a self-cleaning function. When river water flows through a shallow place, because the relative speed of the water flow is higher, a natural aeration phenomenon is generated, and the dissolved oxygen in the river water is increased; when the water flows through the deep water, suspended matters in the river water precipitate due to the slow flow speed; the natural gravels on the riverbed can adsorb and filter pollutants, and microorganisms attached and grown among the gravels can degrade the pollutants; when the flow of the rainfall river is increased, the abundant water can generate the functions of scouring and diluting to carry out the sludge among the gravels, so that the river can recover the original self-cleaning capacity again.
The large-scale engineering development of the gravel contact oxidation technology began in the 70's of the 20 th century, and since the treatment effect on sewage, particularly low-polluted water, was remarkable, the technology was applied in a large number of projects in countries and regions such as japan, korea, and taiwan in east asia since the 80's, and satisfactory water purification effect and environmental benefit were obtained. Some engineering examples in Taiwan areas of China show that the reduction effect of main pollutants among gravels with proper design, construction and operation is remarkable, for example, the average removal rates of BOD5, SS and NH4+ -N can reach 85%, 90% and 95% respectively. It has also been shown that the removal rate of COD in the intergranular purification is higher than 75% under normal water quality conditions.
However, the removal rate of TN and TP by the classical gravel process is low, wherein TN is total nitrogen and refers to the sum of nitrogen in all nitrogen-containing compounds in the water body; TP is total phosphorus, namely the total content of phosphorus in the water body. In order to enhance the removal efficiency of TN and TP by the gravel contact oxidation process, the combination of the gravel contact oxidation process and other sewage purification processes, such as soil filtration, artificial wetland and the like, is considered in relevant research. Wherein, the purification effect of the plants on TN, TP and even some heavy metal pollutants in the sewage by utilizing the biological enrichment is very suitable for the requirement of improving the contact oxidation process between gravels. Therefore, how to create an effective attachment space for plants in the gravel bed structure and improve the survival rate of plants in the gravel oxidation process structure also becomes one of the key points of the related research.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a plant planting device that is used for contact oxidation between the gravel, can absorb the plant, contact oxidation and constructed wetland construction etc. technique effectively combine between the gravel, improve the survival rate of plant in the oxidation technology structure between the gravel.
In order to achieve the above object, the technical solution of the present invention is:
a plant growing apparatus for contact oxidation in gravel comprising:
the planting module is of a hollow tubular structure, a plurality of groups of through holes are formed in the planting module, and each group of through holes are formed in the same vertical plane; planting soil is arranged in the planting module;
the gravel bed module comprises a gravel bed body, a water inlet pipe and a water outlet pipe; the planting module is arranged on the gravel bed body, the gravel bed body sequentially comprises a first gravel layer and a second gravel layer from top to bottom, the fillers of the first gravel layer and the second gravel layer are gravels, and the particle size of the fillers of the first gravel layer is larger than that of the fillers of the second gravel layer; the water inlet pipe is connected to the second gravel layer, and the water outlet pipe is connected to the first gravel layer; and
the aeration module is arranged between the first gravel layer and the second gravel layer, and aeration holes of the aeration module are arranged upwards in an opening mode.
Preferably, every group is perforated and is included first through-hole, second through-hole and third through-hole, first through-hole setting is in plant on the vertical axis of module, second through-hole and third through-hole with plant the vertical axis of module and set up as central axis symmetry.
Preferably, the included angles between the second through hole and the vertical axis of the planting module and between the third through hole and the vertical axis of the planting module are 120-150 degrees.
Preferably, the distance between perforations of each set is 15cm to 25 cm.
Preferably, the planting modules are uniformly arranged on the gravel bed body side by side, and the distance between every two adjacent planting modules is 30-50 cm.
Preferably, the aeration time of the aeration module is 4h, and the interval between two adjacent aeration times is 8 h.
Preferably, the aeration module comprises an aerator body and a membrane, the aerator body is of a hollow structure, the membrane is arranged on the outer side of the aerator body, and the aeration holes are formed in the membrane; the bottom of aerator body is equipped with the inlet end, the aerator body is provided with the recess in the circumferencial direction, the recess is located the aerator body is close to one side of inlet end, be provided with the end of giving vent to anger on the recess, the end of giving vent to anger pass through the branch pipe with the inlet end is connected.
Preferably, the membrane is connected to the aerator body through a clamp.
Preferably, the aeration module further comprises a protective cover, the protective cover covers the outer side of the membrane, and the protective cover is in a shape of a Chinese character 'mi'.
Preferably, the protection cover is integrally formed with the aerator body.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:
(1) the plant planting device for the contact oxidation between the gravels is provided, the technologies of plant absorption, contact oxidation between the gravels, constructed wetland construction and the like are effectively combined, the survival rate of plants in the process structure of the contact oxidation between the gravels is improved, the water quality purification effect is improved in a limited space to the maximum extent, the biological diversity protection is realized, and the feasibility of landscape construction is improved.
(2) The mode of loading planting soil in the multidirectional perforated planting module is used as a vegetation culture medium in the gravel contact oxidation process, compared with the mode of directly planting plants on a gravel bed, the mode effectively ensures nutrient acquisition and physical attachment stability at the initial stage of vegetation implantation, and improves the survival rate of the plants.
(3) A double-layer packing arrangement mode is adopted in the vertical water distribution direction, an upper-layer aerobic and lower-layer anaerobic environment is created, and the organic matter removal efficiency and the nitration reaction efficiency of the whole system are enhanced.
Drawings
Fig. 1 is a schematic view of a plant planting device for contact oxidation between gravels according to the present invention.
Fig. 2 is a schematic view of another direction of the plant planting device for contact oxidation in gravel.
Fig. 3 is a schematic diagram of a planting module in a plant planting device for contact oxidation between gravel according to the present invention.
FIG. 4 is a schematic view of an aeration module of the plant-growing apparatus for contact oxidation between gravels according to the present invention.
FIG. 5 is a bottom view of an aeration module of the plant-growing apparatus for contact oxidation between gravel according to the present invention.
Description of reference numerals: the device comprises a planting module 1, a gravel bed module 2, a gravel bed body 21, a first gravel layer 211, a second gravel layer 212, a water inlet pipe 22, a water outlet pipe 23, an aeration module 3, an aerator body 31, a membrane 32, a gas outlet end 33, a gas inlet end 34, a branch pipe 35 and a clamp 36.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the drawings, a plant growing apparatus for contact oxidation in gravel comprises: a planting module 1, a gravel bed module 2 and an aeration module 3. The planting module 1 is of a hollow tubular structure, and PVC can be selected for use as the material of the planting module 1. The pipe diameter of the PVC pipe is 20cm, and the length of the PVC pipe is 1 m.
The planting module 1 is provided with a plurality of groups of through holes, each group of through holes are arranged on the same vertical surface, and each group of through holes are multi-directional through holes. The distance between every group of perforation is 15 cm-25 cm, so a planting module 1 can be provided with a plurality of groups of perforations to strengthen the communication between the inside and the outside of the planting module 1. The perforations are arranged starting from 10cm from the end of the PVC pipe, and if the pipe is 20cm from the hole, a total of 5 groups of perforations are arranged at 10cm, 30cm, 50cm, 70cm and 90cm from the end of the pipe, respectively, in the case of a 100cm PVC pipe.
Each group of through holes comprises a first through hole, a second through hole and a third through hole, and the aperture of each through hole can be set to be 5 cm. The three-way perforation promptly, first through-hole setting is on the vertical axis of planting module 1, and second through-hole and third through-hole use with the vertical axis of planting module 1 set up as central axis symmetry. Multidirectional perforation for the planting soil in the PVC pipe can evenly draw moisture, utilizes the direction restraint that utilizes below perforated pipe simultaneously, makes plant roots can even downwardly extending as far as possible, thereby can more effectual absorption gravel bed body water pollutant in the middle of the hole, improves quality of water purifying effect.
The included angle between the second through hole and the third through hole and the vertical axis of the planting module 1 can be preferably set to be 120-150 degrees. For example, with 0 ° in the vertical direction, and increasing degrees clockwise, the three-hole orientations are 0 °, 150 °, and 210 °, respectively.
Planting soil is arranged in the planting module 1, and plants are planted on the planting soil. The device is arranged on the surface layer of a modular gravel bed structure, the planting module 1 is half buried into gravel on the surface layer, and two ends of the planting module are fixed on the outer wall of the gravel bed module 2. The plant is planted in the intraductal planting soil in the middle of, and the plant grows out from the perforation of planting module 1 top, and plant roots extends out from two holes of below and gets into in the middle of gravel bed module 2. The water in the gravel bed module 2 enters the planting soil through two holes below the planting module 1 for supplying the plants for growing.
The gravel bed module 2 may be provided as a small module, and the specific specification may be 1m 0.8 m. The gravel bed module 2 includes a gravel bed body 21, an inlet pipe 22, and an outlet pipe 23. The planting modules 1 are uniformly arranged on the gravel bed body 21 side by side, and the distance between every two adjacent planting modules 1 is 30-50 cm. Two PVC pipes are distributed on the surface layer of each gravel bed module 2, are arranged in parallel and are distributed at the positions which are 25cm and 75cm away from the outer wall of the same side of the gravel bed module 2.
The gravel bed body 21 includes a first gravel layer 211 and a second gravel layer 212 in this order from top to bottom, the filler of the first gravel layer 211 and the second gravel layer 212 is gravel, and the filler particle size of the first gravel layer 211 is larger than that of the second gravel layer 212. The gravel packing of the gravel bed body 21 is divided into an upper layer and a lower layer, the thickness of the first gravel layer 211 is 50cm, and the packing is gravel with the particle size of 10-20 cm; the second gravel layer 212 was 30cm thick and was packed with 5-10cm diameter gravel.
The water inlet pipe 22 is connected to the second gravel layer 212 and the water outlet pipe 23 is connected to the first gravel layer 211, i.e., the bottom of the gravel bed module 2 is filled with water and the upper part is filled with water.
The aeration module 3 is disposed between the first gravel layer 211 and the second gravel layer 212, and aeration holes of the aeration module 3 are opened upward. The aeration module 3 adopts an intermittent aeration mode to aerate and oxygenate the upper filler space of the gravel bed. The aeration time of the aeration module 3 is 4h, the aeration time interval of two adjacent times is 8h, namely the aeration-interval time is set to be 4h-8h, and two complete periods are taken every day.
The specific structure of the aeration module 3 is that the aeration module comprises an aerator body 31 and a membrane 32, the membrane 32 is arranged outside the aerator body 31, the membrane 32 is connected to the aerator body 31 through a clamp 36, and aeration holes are arranged on the membrane 32. The bottom of aerator body 31 is equipped with inlet end 34, and aerator body 31 is provided with the recess on the circumferencial direction, and the recess is located aerator body 31 and is close to one side of inlet end 34, is provided with the end 33 of giving vent to anger on the recess, and the end 33 of giving vent to anger is connected with inlet end 34 through branch pipe 35.
The aeration module 3 is of a vertical structure, and because the aerator body 31 is of a hollow structure, when the system is stopped, sludge cannot fall onto the surface of the membrane 32 and cannot block the aeration holes in the membrane 32, so that the service life of the whole aeration hole aeration device is prolonged; when the air blower is started again for air supply, the resistance is also reduced, the air supply pressure is reduced, and the energy conservation and the environmental protection are realized. The vertical structure increases the area of the whole membrane 32, and compared with the same condition, the number of aeration holes is greatly increased, and the oxygen transfer efficiency and the service area under the same unit area are greatly increased.
The aeration module 3 further comprises a protective cover, the protective cover covers the outer side of the membrane 32, and the protective cover is in a shape of a Chinese character 'mi'. The shield is integrally formed with the aerator body 31. When the air is blown into sewage, the membrane 32 can be effectively prevented from deforming and outwards bulging to cause the aeration hole to deform due to the gravity action of the protective cover, so that the membrane 32 is prevented from being torn or falling off due to the deformation of the aeration hole to a certain degree, the use requirement of a user is met, and meanwhile, the protective cover is in a shape like a Chinese character 'mi', and the structural stability of the anti-crack aeration hole aeration device can be improved.
The utility model discloses a three-dimensional perforation PVC pipe loads vegetation culture medium in the middle of the gravel contact oxidation technology as the mode of planting soil, and the contrast is direct plants the mode on the gravel bed, and the effectual nutrient substance who has guaranteed the vegetation initial stage of nidation acquires and the physical adhesion steadiness, has improved the plant survival rate. Meanwhile, the plant root system can extend downwards as much as possible by utilizing the direction constraint of the lower perforated pipe, so that water pollutants in the pores of the gravel bed body can be more effectively absorbed, and the water quality purification effect is improved.
The vertical water distribution direction adopts a double-layer filler arrangement mode, the lower layer adopts fine-grain-size fillers, and the pores among the gravels are small, so that a relatively anaerobic environment can be created, a section of environmental condition suitable for denitrification reaction exists after the sewage enters the whole process, and more effective nitrogen and phosphorus removal is realized. Coarse grain diameter fillers are arranged on the upper portion of the gravel bed, the porosity between the gravels is large, and meanwhile, a micropore aeration device is arranged below the coarse grain diameter filler layer for aeration and oxygenation, so that an aerobic environmental condition is created on the upper portion of the bed body, aerobic microorganisms can be attached and grown, and the organic matter removal efficiency and the nitration reaction efficiency of the whole system are further improved.
The aeration of the upper layer of the gravel bed is carried out for 4h-8h by micropore aeration, so that the circulation of anoxic-aerobic environmental conditions in the upper layer filler space is effectively formed, and the nitrogen and phosphorus removal effect of the whole system is enhanced.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (10)
1. A plant growing apparatus for contact oxidation in gravel, comprising:
the planting module is of a hollow tubular structure, a plurality of groups of through holes are formed in the planting module, and each group of through holes are formed in the same vertical plane; planting soil is arranged in the planting module;
the gravel bed module comprises a gravel bed body, a water inlet pipe and a water outlet pipe; the planting module is arranged on the gravel bed body, the gravel bed body sequentially comprises a first gravel layer and a second gravel layer from top to bottom, the fillers of the first gravel layer and the second gravel layer are gravels, and the particle size of the fillers of the first gravel layer is larger than that of the fillers of the second gravel layer; the water inlet pipe is connected to the second gravel layer, and the water outlet pipe is connected to the first gravel layer; and
the aeration module is arranged between the first gravel layer and the second gravel layer, and aeration holes of the aeration module are arranged upwards in an opening mode.
2. A plant growing apparatus for contact oxidation in gravel form according to claim 1, wherein: every group is perforated and is included first through-hole, second through-hole and third through-hole, first through-hole sets up plant on the vertical axis of module, second through-hole and third through-hole with plant the vertical axis of module and set up as central axis symmetry.
3. A plant growing apparatus for contact oxidation in gravel form according to claim 2, wherein: the included angle between the vertical axis of the planting module and the second through hole and the vertical axis of the third through hole are 120-150 degrees.
4. A plant growing apparatus for contact oxidation in gravel form according to claim 1, wherein: the distance between every two groups of perforations is 15 cm-25 cm.
5. A plant growing apparatus for contact oxidation in gravel form according to claim 1, wherein: the planting modules are uniformly arranged on the gravel bed body side by side, and the distance between every two adjacent planting modules is 30-50 cm.
6. A plant growing apparatus for contact oxidation in gravel form according to claim 1, wherein: the aeration time of the aeration module is 4h, and the interval between two adjacent aeration times is 8 h.
7. A plant growing apparatus for contact oxidation in gravel form according to claim 1, wherein: the aeration module comprises an aerator body and a membrane, the aerator body is of a hollow structure, the membrane is arranged on the outer side of the aerator body, and the aeration holes are formed in the membrane; the bottom of aerator body is equipped with the inlet end, the aerator body is provided with the recess in the circumferencial direction, the recess is located the aerator body is close to one side of inlet end, be provided with the end of giving vent to anger on the recess, the end of giving vent to anger pass through the branch pipe with the inlet end is connected.
8. A plant growing apparatus for contact oxidation in gravel form according to claim 7, wherein: the membrane is connected to the aerator body through a hoop.
9. A plant growing apparatus for contact oxidation in gravel form according to claim 7, wherein: the aeration module further comprises a protective cover, the protective cover covers the outer side of the membrane, and the protective cover is in a shape like a Chinese character 'mi'.
10. A plant growing apparatus for contact oxidation in gravel form according to claim 9, wherein: the protective cover and the aerator body are integrally formed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921409326.4U CN210928951U (en) | 2019-08-28 | 2019-08-28 | Plant planting device for contact oxidation between gravels |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921409326.4U CN210928951U (en) | 2019-08-28 | 2019-08-28 | Plant planting device for contact oxidation between gravels |
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| CN210928951U true CN210928951U (en) | 2020-07-07 |
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| CN201921409326.4U Active CN210928951U (en) | 2019-08-28 | 2019-08-28 | Plant planting device for contact oxidation between gravels |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651502A (en) * | 2021-09-08 | 2021-11-16 | 河北环境工程学院 | Natural water body integrated purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651502A (en) * | 2021-09-08 | 2021-11-16 | 河北环境工程学院 | Natural water body integrated purification system |
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