Vegetable planting pool and symbiotic planting and breeding system

Abstract

The utility model provides a vegetable planting pool and a symbiotic planting and breeding system, and relates to the technical field of fish and vegetable symbiotic comprehensive breeding, the bottom of the vegetable planting pool of the symbiotic planting and breeding system is provided with a water inlet and a water outlet, a hard curved-line net-shaped permeable pipe is laid at the bottom of the pool, one end of the hard curved-line net-shaped permeable pipe is communicated with the water inlet, and the other end of the hard curved-line net-shaped permeable pipe is communicated with the water outlet. The other end of the hard curved netted permeable pipe is closed; a porous filter layer is laid on the hard curved-line net-shaped water permeable pipe; a water body layer is arranged on the porous filter layer, and at least one vegetable planting floating plate is laid on the water body layer; the opening end of the water outlet pipe is higher than the filtering layer. The utility model provides a symbiotic planting and breeding system which can reduce equipment investment, reduce construction cost, improve particle impurity settling rate and prolong maintenance period.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated aquaculture of fish and vegetables, in particular to a vegetable planting pool and a symbiotic aquaculture and planting system. Background Technique

[0002] At present, there are many integrated aquaculture methods for fish and vegetable symbiosis. In particular, there is no unified fixed mode for the circulating water purification treatment method, and it is selected and set according to the production scale and the aquaculture ratio.

[0003] The following are the main popular modes: One is the floating bed cultivation and purification mode, that is, using bamboo floating rafts, foam floating boards or EPS material floating boards to make floating cultivation beds, on which different kinds of vegetables are planted, which has the characteristics of not easily blocking the water flow and low cost. The floating bed cultivation mode is mostly applied to pond fish farming, the separated aquaculture system in greenhouse facilities, and the tail water treatment of pig farms. Different varieties of vegetables can be planted according to the water and air temperature. For example, in spring or winter, houttuynia cordata, watercress or water celery can be selected for planting, and water spinach and mint are planted in summer. The floating raft material for planting plants is cheap and easy to operate, and can be made into different shapes and patterns, which is convenient for picking and can also be used for landscape viewing. The deep water cultivation mode is relatively easy to realize industrialization and factory production, but the nitrification treatment in the system is a technical problem that cannot be solved.

[0004] The second is the composite constructed wetland cultivation and treatment purification mode, which is further divided into surface flow constructed wetland, subsurface flow constructed wetland and vertical flow constructed wetland. The composite constructed wetland is often applied to urban domestic sewage treatment, facility aquaculture tail water treatment and other aspects. The constructed wetland substrate not only transports nutrients to the vegetables planted in the substrate, but also plays a dual role of mechanical filtration and biological filtration, combining fish farming and vegetable cultivation techniques organically. However, this mode is easy to block and has a greater difficulty in later maintenance.

[0005] The third is the nutrient solution or aeroponic three-dimensional cultivation and treatment purification mode. This mode mainly draws on the vegetable three-dimensional cultivation technology. The aquaculture water flows through the planting trough after nitrification treatment or through atomization to supply the nutrients in the water for plant growth. Due to the large investment and high requirements for supporting technologies and equipment, this mode is rarely used in the fish-dominated mode and is difficult to promote.

[0006] The above three modes have many problems in actual production, making it difficult to promote. For example, the above three traditional aquaponics water treatment and purification modes usually require facilities such as microfilters (or vertical flow sedimentation tanks, sedimentation ponds) and biochemical ponds to be set at the front end, which have problems such as occupying aquaculture area and increasing equipment costs. Especially in the case where the facility area is limited or there is a conflict in the ratio between the biochemical treatment area and the vegetable hydroponics area, there is easily a problem of insufficient decomposition and transformation ability of organic matter in the circulating water body; only setting facilities such as microfilters at the front end is prone to the problem of incomplete collection of particulate impurities; in the case of growing vegetables using artificial wetland substrates, the particulate matter accumulates and easily clogs the entire planting system after sedimentation, reducing the operation effect of the system or even causing it to collapse. Summary of the Invention

[0007] The utility model provides a vegetable planting pool and a symbiotic aquaculture system, which integrate physical sedimentation, mechanical filtration, biochemical reaction and ecological absorption functions, can reduce equipment investment, lower construction costs, increase the sedimentation rate of particulate impurities, and extend the maintenance cycle.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] In the first aspect of the utility model, a vegetable planting pool is provided, which includes: an inlet and an outlet are provided at the bottom of the pool, a rigid corrugated mesh permeable pipe is laid at the bottom of the pool, one end of the rigid corrugated mesh permeable pipe is communicated with the inlet, and the other end of the rigid corrugated mesh permeable pipe is closed; a porous filter layer is laid on the rigid corrugated mesh permeable pipe; a water body layer is arranged above the porous filter layer, and at least one vegetable planting floating board is laid on the water body layer; the outlet is connected with an outlet pipe, and the open end of the outlet pipe is higher than the filter layer.

[0010] Further, the porous filter layer is a granular porous filter material layer, which plays a role in gradually filtering feces in the water body.

[0011] Further, the porous filter layer at least includes a first porous filter layer, a second porous filter layer and a third porous filter layer with gradually decreasing particle sizes from bottom to top.

[0012] Further, the outlet pipe includes an inner pipe and an outer pipe, the inner pipe and the outer pipe are separately arranged, the outer pipe is higher than the inner pipe, and the open end of the inner pipe is 10-15 cm higher than the filter layer; the outer pipe is a rigid corrugated mesh permeable pipe, and the inner pipe is a PP pipe.

[0013] Further, the bottom of the pool is inclined, and the inlet is lower than the outlet.

[0014] In the second aspect of the present utility model, a symbiotic planting and breeding system is provided, including: a breeding pond, a sewage collection pond, and the vegetable planting pond provided in the first aspect of the present utility model; the sewage collection pond is communicated with the vegetable planting pond, and the breeding pond is communicated with the vegetable planting pond.

[0015] Further, the water inlet is connected with a water inlet pipe, the water inlet pipe is connected with a three-way pipe fitting, and the other two ports of the three-way pipe fitting are respectively communicated with the breeding pond and the sewage collection pond. A valve one is arranged between the breeding pond and the three-way pipe fitting, and a valve two is arranged between the sewage collection pond and the three-way pipe fitting.

[0016] Further, the water outlet is connected with a return pipe, and the return pipe is communicated with the breeding pond.

[0017] Further, a water treatment device is included. One end of the water treatment device is communicated with the breeding pond, and the other end is communicated with the valve one.

[0018] Compared with the related art, the vegetable planting pond and the symbiotic planting and breeding system provided by the present utility model have the following advantages:

[0019] In the symbiotic planting and breeding system provided by the present utility model, by laying a porous filter layer in the vegetable planting pond, the surface of the filter material of the porous filter layer has many micropores and a large specific surface area, greatly increasing the biochemical treatment site, which is beneficial to the nitrification of microorganisms to convert nutrients such as residual baits and feces in the water body into nitrate nitrogen that can be absorbed and utilized by plants; the water inlet and the water outlet are arranged at the bottom of the pond, and the upper end of the water outlet pipe connected to the water outlet is arranged at a position higher than the porous filter layer. The aquaculture tail water enters the vegetable pond from the bottom water inlet and flows evenly upward above the breeding pond through the rigid corrugated mesh permeable pipe, reducing the accumulation of impurities such as residual baits and feces at the water inlet; the aquaculture tail water flows from bottom to top and is discharged through the upper water outlet pipe, which is beneficial to the sedimentation of particulate matter in the water body. In addition, the water inlet is arranged at the bottom of the pond and the water outlet pipe is higher than the porous filter layer, which is beneficial to backwashing to discharge excess impurities such as residual baits and feces, facilitating the backwashing and cleaning of the porous filter layer and the vegetable pond.

[0020] The symbiotic planting and breeding system provided by the present utility model uses the parallel purification method that combines floating bed cultivation and filter matrix in the vegetable breeding pond, which can not only solve the problems of insufficient nitrification area and circulation volume, reduce the investment in equipment such as the front-end biochemical pond, improve the sedimentation rate of particulate impurities, but also clean the vegetable planting pond by backwashing according to needs, avoiding the problem that the filter matrix is easily blocked.

[0021] In addition to the technical problems solved by the present utility model described above, the technical features constituting the technical solution, and the beneficial effects brought about by these technical features of the technical solution, other technical problems that can be solved by the vegetable planting pool and the symbiotic breeding system provided by the present utility model, other technical features included in the technical solution, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Longitudinal sectional view of the vegetable planting pool of this embodiment along the length direction;

[0024] Figure 2 Longitudinal sectional view of the vegetable planting pool of this embodiment along the width direction;

[0025] Figure 3 Structural schematic diagram of the symbiotic breeding system of this embodiment.

[0026] Description of the reference numerals in the drawings:

[0027] 10: Breeding pond; 20, Sewage collection pond; 30, Vegetable planting pool; 31, Water inlet; 32, Water outlet; 33, Rigid corrugated mesh permeable water pipe; 34, Porous filter layer; 35, Water body layer; 36, Vegetable planting floating board; 37, Water outlet pipe; 371, Inner pipe; 372, Outer pipe; 40, Three-way pipe fitting; 50, Water inlet pipe; 60, Valve 1; 70, Valve 2; 80, Return pipe; 90, Water treatment device; 100, Symbiotic breeding system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described in detail below in conjunction with the drawings and the specific implementation manner.

[0029] As Figures 1 to 3 shown, the symbiotic breeding system 100 provided by the present utility model includes a breeding pond 10, a sewage collection pond 20, and a vegetable planting pool 30. The breeding pond 10 is connected to the vegetable planting pool 30 through pipelines to realize the purification treatment of the breeding tail water of the breeding pond 10 through the vegetable planting pool 30. The sewage collection pond 20 is connected to the vegetable planting pool 30 through pipelines to realize the timely discharge of the residual bait feces exceeding the system treatment capacity of the vegetable planting pool 30.

[0030] The specific symbiotic aquaculture system 100 further includes a tee fitting 40. One end of the tee fitting 40 is connected to a water inlet pipe 50, and the water inlet pipe 50 is communicated with the vegetable planting pool 30. The other two ends of the tee fitting 40 are respectively communicated with the aquaculture pond 10 and the sewage collection pond 20. A first valve 60 is arranged between the aquaculture pond 10 and the tee fitting 40, and a second valve 70 is arranged between the sewage collection pond and the tee fitting 40. The aquaculture pond 10 is connected to the vegetable planting pool 30 through a return pipe 80. When the symbiotic aquaculture system is running daily, the first valve 60 is opened and the second valve 70 is closed. The aquaculture tail water in the aquaculture pond 10 is input into the vegetable planting pool 30 through the water inlet pipe 50 for purification treatment, and the purified water flows back to the aquaculture pond 10 through the return pipe 80 to realize the recycling of the aquaculture tail water and save aquaculture water. When impurities such as residual baits and feces in the vegetable planting pool 30 exceed the treatment capacity of the vegetable planting pool 30, or when the vegetable planting pool 30 needs to be backflushed and cleaned, or when it is necessary to discharge and replace the water in the aquaculture pond 30 according to the water quality requirements, the first valve 60 is closed and the second valve 70 is opened. The water in the vegetable planting pool 30 is discharged into the sewage collection pond 20 through the water inlet pipe 50 for subsequent treatment. For example, the water in the sewage collection pond 20 is used to irrigate the vegetable greenhouse or the residual baits and feces in the sewage collection pond 20 are collected and made into organic fertilizers after treatment, etc.

[0031] On the basis of the above embodiment, the symbiotic aquaculture system 100 further includes a water treatment device 90. One end of the water treatment device 90 is communicated with the aquaculture pond 10, and the other end is communicated with the first valve 60. Before the aquaculture tail water in the aquaculture pond 10 flows into the vegetable planting pool 30, it first flows through the water treatment device 90 for preliminary sedimentation and other pretreatment, and then flows into the vegetable planting pool 30 for further purification treatment. The symbiotic aquaculture system 100 is provided with the water treatment device 90 to pretreat the aquaculture tail water, which can reduce the purification pressure of the vegetable planting pool 30 and improve the purification efficiency.

[0032] In the symbiotic aquaculture system 100, the number and size of the aquaculture pond 10, the sewage collection pond 20, and the vegetable planting pool 30 can be adjusted and set according to the site scale, aquaculture carrying capacity and other conditions. The aquaculture pond 10 can be used to culture aquatic organisms, such as fish, shrimps, crabs, etc.; it can also be used for other aquaculture conditions that require treatment and recycling of aquaculture tail water.

[0033] As Figure 1 and Figure 2 shown, the bottom of the vegetable planting pool 30 is provided with a water inlet 31 and a water outlet 32. A rigid corrugated mesh permeable pipe 33 is laid on the bottom of the pool. The rigid corrugated mesh permeable pipe 33 covers the bottom of the pool in a "zigzag" or "return" shape. One end of the rigid corrugated mesh permeable pipe 33 is connected to the water inlet 31, and the other end is closed. The specific size of the vegetable planting pool 30 is 5m in length and 1m in width; the diameter of the rigid corrugated mesh permeable pipe 33 is 160mm.

[0034] A porous filter layer 34 is laid on the upper part of the rigid corrugated mesh permeable water pipe 33. In this embodiment, the porous filter layer 34 is a volcanic stone layer laid by granular volcanic stones. The volcanic stone layer 14 includes a first porous filter layer, a second porous filter layer, and a third porous filter layer with gradually decreasing particle sizes from bottom to top. The particle size of the volcanic stones in the first porous filter layer is 10 - 13 cm, the particle size of the volcanic stones in the second porous filter layer is 5 - 8 cm, and the particle size of the volcanic stones in the third porous filter layer is 1 - 3 cm. The height of each layer of the porous filter layer is not less than 20 cm. In other embodiments, the porous filter layer 34 can also be laid by filter materials such as biological ceramsite and zeolite with multiple pores.

[0035] The rigid corrugated mesh permeable water pipes are evenly laid at the bottom of the pond. One end of the rigid corrugated mesh permeable water pipe is connected to the water inlet, which can ensure that the water inlet is not blocked by volcanic stones when laying volcanic stones; the other end of the rigid corrugated mesh permeable water pipe is closed, and the aquaculture tail water will not directly flow out along the end of the rigid corrugated mesh permeable water pipe, which can ensure that the aquaculture tail water uniformly rises through the pores of the rigid corrugated mesh permeable water pipe and passes through the porous filter layer, avoiding excessive accumulation of impurities such as residual baits and feces in the surrounding area of the water inlet and improving the filtration and purification effect.

[0036] The surfaces of filter materials such as volcanic stones in the porous filter layer have many micropores and a large specific surface area, which greatly increases the biochemical treatment site and is conducive to the nitrification of microorganisms to convert nutrients such as residual baits and feces in the water body into nitrate nitrogen that can be absorbed and utilized by plants; in addition, the micropores on the surface of the filter materials in the porous filter layer and the gaps formed between the filter materials also facilitate the sedimentation of particulate impurities such as residual baits and feces in the water body. Laying the porous filter layer with different particle size gradients to form multiple filter layers for filtering impurities of different particle sizes, large particle impurities settle in the lower layer, and smaller particle impurities settle to the upper filter layer, further improving the sedimentation effect of particulate matter in the water body and also facilitating backwashing.

[0037] Above the porous filter layer 34 is a water body layer 35 formed by the injected aquaculture tail water submerging. One or more vegetable planting floating boards 36 are floatingly laid on the water body layer 35 as needed. A vertical water outlet pipe 37 is connected to the water outlet 32, and the upper opening of the water outlet pipe 37 is higher than the porous filter layer 34. With such a setting, the aquaculture tail water is injected from the water inlet 31 at the bottom of the pond, and after physical filtration and biological purification by the rigid corrugated mesh permeable water pipe 33 and the porous filter layer 34, a water body layer 35 is formed. The water in the water body layer 35 is then absorbed and purified by the vegetables planted in the vegetable planting floating board 36 and then discharged from the water outlet pipe 37, which can ensure the purification effect of the aquaculture tail water.

[0038] The water outlet pipe 37 further includes an inner pipe 371 and an outer pipe 372. The inner pipe 371 is a PP pipe, and the outer pipe 372 is a rigid corrugated mesh permeable water pipe. The upper end opening of the inner pipe 371 is 10-15 cm higher than the upper end of the porous filter layer 34, and the height of the outer pipe 372 is higher than that of the inner pipe 371. The inner pipe 371 and the outer pipe 372 are separately arranged and can be inserted and pulled out of the water outlet 32 independently. When the vegetable planting pool 30 is undergoing normal purification treatment, both the inner pipe 371 and the outer pipe 372 are inserted at the water outlet 32. In this way, it can be ensured that the aquaculture tail water is discharged after being fully purified by the multi-stage structure of the vegetable planting pool 30. The outer pipe 372 can play a supporting role to ensure that the laid volcanic stones will not collapse. Especially when the inner pipe 371 needs to be pulled out, the outer pipe 372 can intercept the volcanic stones to ensure that the volcanic stones will not collapse and block the water outlet.

[0039] On the basis of the above embodiments, the bottom of the vegetable planting pool 30 is inclined, the water inlet 31 is lower than the water outlet 32, and the height difference is 10 cm. The water inlet 31 is arranged at the low point, which can ensure that impurities such as residual bait and feces are fully discharged during the backwashing process.

[0040] The symbiotic planting and breeding system provided by the present utility model, by setting the water inlet and the water outlet at the bottom of the pool and setting the upper end of the water outlet pipe connected to the water outlet at a position higher than the porous filter layer, the aquaculture tail water enters the vegetable pool from the bottom water inlet and evenly flows upward into the aquaculture pool through the rigid corrugated mesh permeable water pipe, reducing the accumulation of impurities such as residual bait and feces at the water inlet; the aquaculture tail water flows from bottom to top and is discharged through the upper water outlet pipe, which is beneficial to the sedimentation of particulate matter in the water body. In addition, the water inlet is arranged at the bottom of the pool and the water outlet pipe is higher than the porous filter layer, which is beneficial to backwashing and discharging excess impurities such as residual bait and feces, facilitating the backwashing and cleaning of the porous filter layer and the vegetable pool.

[0041] A porous filter layer is laid in the vegetable planting pool. The surface of the filter material of the porous filter layer has many micropores and a large specific surface area, greatly increasing the biochemical treatment site, which is beneficial to the nitrification of microorganisms to convert nutrients such as residual bait and feces in the water body into nitrate nitrogen that can be absorbed and utilized by plants; by laying the porous filter layer with filter materials of different particle sizes in a gradient manner, a multi-layer filter layer is formed to filter impurities of different particle sizes, further improving the sedimentation effect of particulate matter in the water body and the backwashing effect. In addition, setting the porous filter layer in the vegetable planting pool reduces the need for additional equipment such as biochemical tanks and microfiltration machines, effectively utilizes the planting space, and reduces the equipment investment cost.

[0042] The aquaculture tail water is recycled to the aquaculture pool after being purified by the vegetable planting pool, realizing the recycling of the aquaculture tail water and saving aquaculture water.

[0043] The symbiotic planting and breeding system provided by the present utility model combines floating bed cultivation and filtering matrix through a parallel purification method using a vegetable cultivation pond. It can not only solve the problems of insufficient nitrification area and circulation volume, reduce the investment in equipment such as the front-end biochemical pond, and improve the sedimentation rate of particulate impurities, but also clean the vegetable planting pond by backwashing as needed to avoid the problem of easy blockage of the filtering matrix.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A vegetable planting pool, characterized in that, The bottom of the pool is provided with a water inlet and a water outlet. A rigid corrugated mesh permeable water pipe is laid on the bottom of the pool. One end of the rigid corrugated mesh permeable water pipe is communicated with the water inlet, and the other end of the rigid corrugated mesh permeable water pipe is closed. A porous filter layer is laid on the rigid corrugated mesh permeable water pipe. Above the porous filter layer is a water body layer, and at least one vegetable planting floating board is laid on the water body layer. The water outlet is connected with a water outlet pipe, and the opening end of the water outlet pipe is higher than the filter layer.

2. The vegetable planting pool according to claim 1, characterized in that, The porous filter layer is a granular porous filter material layer.

3. The vegetable planting pool according to claim 2, wherein, The porous filter layer at least includes a first porous filter layer, a second porous filter layer and a third porous filter layer with gradually decreasing particle sizes from bottom to top.

4. The vegetable planting pool according to claim 1, characterized in that, The water outlet pipe includes an inner pipe and an outer pipe. The inner pipe and the outer pipe are separately arranged. The outer pipe is higher than the inner pipe, and the opening end of the inner pipe is 10-15 cm higher than the filter layer. The outer pipe is a rigid corrugated mesh permeable water pipe, and the inner pipe is a PP pipe.

5. The vegetable planting pool according to claim 1, characterized in that, The bottom of the pool is inclined, and the water inlet is lower than the water outlet.

6. A symbiotic planting and breeding system, characterized in that, Including: A breeding pool, a sewage collection pool and the vegetable planting pool according to any one of claims 1-5; the sewage collection pool is communicated with the vegetable planting pool, and the breeding pool is communicated with the vegetable planting pool.

7. The symbiotic planting and breeding system according to claim 6, wherein, The water inlet is connected with a water inlet pipe, and the water inlet pipe is connected with a three-way pipe fitting. The other two ports of the three-way pipe fitting are respectively communicated with the breeding pool and the sewage collection pool. A valve one is arranged between the breeding pool and the three-way pipe fitting, and a valve two is arranged between the sewage collection pool and the three-way pipe fitting.

8. The symbiotic planting and breeding system according to claim 7, characterized in that The water outlet is connected with a return pipe, and the return pipe is communicated with the breeding pool.

9. The symbiotic planting and breeding system according to claim 8, wherein, It further includes a water treatment device. One end of the water treatment device is communicated with the breeding pool, and the other end is communicated with the valve one.

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