CN115925173A - Modular assembly type aquaculture tail water treatment system and method - Google Patents
Modular assembly type aquaculture tail water treatment system and method Download PDFInfo
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Abstract
The invention discloses a modularized assembly type aquaculture tail water treatment system and method, which are sequentially arranged from water inlet to water outlet: the system comprises a filter tank, a first filter dam, a regulating tank, a second filter dam, a biochemical tank, an isolation dam, a micro filter, an overflow and escape dam and an ecological tank; the dam body is prepared by stacking polypropylene (PP) plastic basket filling materials. The technical scheme of the invention aims at the characteristics of limited aquaculture land resources and large tail water discharge amount, is arranged on the basis of not changing the conditions of the existing aquaculture pond or nearby ditches, has the advantages of small occupied area, short construction period, low implementation cost, adaptation to local conditions and simple operation and maintenance, and designs the modular assembled aquaculture tail water treatment system and method with remarkable treatment effect and wide practicability.
Description
Technical Field
The invention relates to the technical field of aquaculture tail water treatment, in particular to a modular assembly type aquaculture tail water treatment system and method.
Background
Intensive industrial aquaculture is the main direction of the development of the current aquaculture, and when high-yield and high-efficiency aquaculture benefits are pursued, the concentrations of suspended matters, nitrogen-containing organic matters, phosphorus-containing organic matters and other pollutants are increased due to the large discharge of fish residual baits and excrement, so that the eutrophication of the water environment for containing tail water is more and more serious, and great pressure is caused to the ecological environment. With the coming of the relevant policies about the management of the culture tail water in various places, how to improve the purification efficiency of the culture tail water and improve the culture environment becomes a focus of the research on culture ecology and environment, and the ecological and high-efficiency treatment of the culture tail water is urgent. The method maintains good water environment, enables the aquaculture tail water to be recycled or discharged after reaching standards, and is an important guarantee for the sustainable development of the aquaculture industry.
At present, the main technical methods for treating the tail water of pond culture include methods of three ponds and two dams, ecological pond treatment, artificial wetland and the like, a large area of tail water treatment area needs to be planned and implemented in the methods, and a large amount of infrastructure construction needs to be carried out, so that a large amount of capital investment and a part of land resources are required to be invested for a culture base which is built and used for many years to reconstruct a tail water treatment system, and the difficulty of enterprises is undoubtedly increased.
Therefore, the problem to be solved by those skilled in the art is how to provide a tail water treatment system and method with good treatment effect, low cost and simple operation.
Disclosure of Invention
In view of the above, the invention provides a modular assembly type aquaculture tail water treatment system and method, and aims at the characteristics of limited aquaculture land resources and large tail water discharge amount, and the modular aquaculture tail water treatment system and method with remarkable treatment effect and wide practicability are designed. Through the current material in purchase market, it is quick effective, labour saving and time saving, movable assembly makes things convenient for later stage management.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a modularization assembled aquaculture tail water processing system, includes the processing pond, including intaking in the processing pond to the play water direction including setting gradually in: the system comprises a filter tank, a first filter dam, a regulating tank, a second filter dam, a biochemical tank, an isolation dam, a micro filter, an overflow and escape dam and an ecological tank;
the filtering tank is communicated with the water inlet, and the top end of the filtering tank is provided with a screen;
the filtering tank is communicated with the adjusting tank through water permeable holes arranged on a dam body of the filtering dam I;
a first floating raft is arranged on the water surface of the adjusting tank, and aquatic animals are cultured in the water body;
the dam body of the second filtering dam is made of a water-permeable material, filter materials are filled in the dam body, and a nano oxygen increasing pipe is arranged on the dam body;
a floating plate is arranged on the water surface of the biochemical pool, and aquatic organisms are cultured in the water body;
the bottom end of the isolation dam is provided with an isolation part, the top end of the isolation dam is provided with a filtering part, and the filtering part is filled with filter materials;
aquatic organisms are cultured in the microfiltration tank;
the overflow gas escape dam comprises a separation wall and a permeable wall from bottom to top, and the permeable wall is filled with filter materials;
a second floating raft is arranged on the water surface of the ecological pool, and aquatic organisms are cultured in the water body;
the ecological pool is communicated with the water outlet.
Preferably, one end of the screen is fixed on the wall of the treatment pool, the other end of the screen is fixed on the top end of the first filtering dam, the wall of the treatment pool is higher than the top end of the first filtering dam, a water collecting tank is arranged on the top end of the wall of the treatment pool, and a collecting tank is arranged on the top end of the first filtering dam.
Furthermore, the screen cloth is of an arc structure, the installation inclination angle is 45 degrees, the diameter of the mesh is 0.10mm, and the screen cloth is made of stainless steel.
Preferably, the second filtering dam, the isolation dam and the dam body of the overflow and escape dam are made of polypropylene net cages, and biological ceramsite is filled in the second filtering dam.
Furthermore, the bottom 3/4 of the isolation dam is provided with an isolation part, the top 1/4 of the isolation dam is provided with a filtering part, the isolation part is filled with zeolite materials with the diameter less than 10mm, and the filtering part is filled with biological filter materials.
Furthermore, 2/3 of the bottom of the overflow and escape dam is a separation wall, 1/3 of the top of the overflow and escape dam is a permeable wall, the separation wall is filled with zeolite materials with the diameter less than 10mm, and the permeable wall is filled with biological ceramsite.
Preferably, the second filter dam is provided with nano oxygen increasing tubes at the 1/4, 1/2 and 3/4 heights respectively.
Preferably, aquatic plants are planted at the top ends of the second filtering dam, the floating disc, the isolation dam, the first floating raft, the overflow and escape dam and the second floating raft; the water bodies in the adjusting tank, the biochemical tank and the ecological tank are used for freely culturing shellfish, snails and fishes; and hanging a cage in the water body of the microfiltration tank to culture the shellfish.
Preferably, the aquatic plants are one or more of watermifoil, cress, watercress, water spinach and pinus brachypodium, and the planting density accounts for 60-80% of the area of the water surface or the top surface of the dam body;
the shellfish is hyriopsis cumingii or freshwater mussel, the snails are river snails, and the fishes are silver carps and bighead carps; wherein the stocking density of silver carps is 1/m 3 The stocking specification is 300-500 g/tail, and the stocking density of bighead carp is 0.5 tail/m 3 The stocking specification is 300-500 g/tail; breeding snails and shellfish at the bottom of the water body with the breeding density of 5-8 snails/m 2 。
The invention also provides a method for treating aquaculture tail water by using the system in the technical scheme, which comprises the following steps:
(1) Water enters from a water inlet of the treatment tank, is treated by a screen and then falls into the filter tank, and enters the regulating tank through a permeable hole of a first filter dam in the filter tank;
(2) The water treated by the adjusting tank enters a biochemical tank after being subjected to oxygen increasing aeration treatment and filtration by a second filter dam;
(3) Overflowing and filtering the water treated in the biochemical pond through a filtering part at the top end of the isolation dam and then entering a micro-filter;
(4) The water treated by the micro-filter tank is filtered and overflowed by a permeable wall of an overflow escape dam, enters the ecological tank, is treated by the ecological tank and then is discharged from a water outlet at the top end of the ecological tank.
Compared with the prior art, the modularized aquaculture tail water treatment system and method disclosed by the invention have the following beneficial effects:
1) The technology has the advantages of high modularization and assembly, and is suitable for different breeding modes, different tail water treatment areas, different ecological purification ponds and different tail water flow rates;
2) The technology does not need to modify the foundation structure of the existing aquaculture pond or tail water treatment ecological pond, and is suitable for the existing aquaculture pond or tail water treatment pond, such as a soil pond, a cement pond or an impermeable membrane pond;
3) The technology has the advantages of small engineering quantity, good treatment effect, low later maintenance cost, small operation management difficulty and the like;
4) The technology has low implementation cost, and the area or biological community structure of each processing unit can be properly adjusted according to the change of the concentration of pollutants in tail water;
5) The system is provided with the oxygenation pipe in the second filtering dam, and the rest of the whole process is in no power cascade connection, depends on automatic infiltration of water flow, and is low in operation cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a top view of a modular assembly aquaculture tail water treatment system of the present invention;
FIG. 2 is a cross-sectional view of a modular assembly aquaculture tail water treatment system of the present invention;
FIG. 3 is a diagram of a curved screen configuration for a modular assembly aquaculture tail water treatment system of the present invention;
FIG. 4 is an assembly view of a second filter dam of the modular assembly aquaculture tail water treatment system of the present invention;
FIG. 5 is a structural diagram of a floating plate, a first floating raft and a second floating raft of the modular assembly type aquaculture tail water treatment system of the present invention;
FIG. 6 is a flow chart of the modular assembly aquaculture tail water treatment method of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in the attached figures 1-3, the modularized aquaculture tail water treatment system comprises a treatment tank 1, wherein the treatment tank 1 is internally provided with a water inlet and a water outlet in sequence: the system comprises a filter tank 2, a first filter dam 3, a regulating tank 4, a second filter dam 5, a biochemical tank 6, an isolation dam 7, a micro-filter 8, an overflow air escape dam 9 and an ecological tank 10;
the filtering tank 2 is communicated with the water inlet, the top end of the filtering tank 2 is provided with a screen 21, one end of the screen 21 is fixed on the tank wall of the processing tank 1, the other end of the screen 21 is fixed on the top end of the first filtering dam 3, the tank wall of the processing tank 1 is higher than the top end of the first filtering dam 3, so that the screen 21 forms an arc-shaped structure which inclines downwards, the top end of the tank wall of the processing tank 1 is provided with a water collecting tank 11, and the top end of the first filtering dam 3 is provided with a collecting tank 31;
the filtering tank 2 is communicated with the adjusting tank 4 through water permeable holes 32 arranged on a dam body of a filtering dam I3, wherein the pore diameter of the water permeable holes 32 is 10cm, and the hole-to-hole gap is 20cm;
a first buoyant raft 41 is arranged on the water surface of the adjusting tank 4, and aquatic organisms are cultured in the water body;
the dam body of the second filtering dam 5 is made of a permeable material, filter materials are filled in the dam body, and a nano oxygenation pipe 51 is arranged on the dam body;
a floating plate 61 is arranged on the water surface of the biochemical pool 6, and aquatic organisms are cultured in the water body;
the bottom end of the isolation dam 7 is provided with an isolation part 71, the top end is provided with a filtering part 72, and the filtering part 72 is filled with filter materials;
aquatic organisms are cultured in the micro filter 8;
the overflow escape dam 9 comprises a separation wall 91 and a permeable wall 92 from bottom to top, and the permeable wall 92 is filled with filter materials;
a floating raft II 101 is arranged on the water surface of the ecological pool 10, and aquatic organisms are cultured in the water body;
the ecological pool 10 is communicated with the water outlet.
In some specific modified technical schemes, the installation inclination angle of the screen 21 is 45 degrees, the diameter of the mesh is 0.10mm, and the screen is made of stainless steel.
In some specific improved technical schemes, the first filtering dam 3 is a concrete brick wall, and the width of the dam is 1m.
In some specific improved technical schemes, as shown in fig. 4, the dam body of the second filtering dam 5 is assembled by adopting a PP net cage, biological ceramsite is filled in the dam body, the isolation dam 7 and the dam body of the overflow and escape dam 9 are also assembled by adopting the PP net cage, the net cage is low in cost, convenient to disassemble and assemble, convenient to move and assemble and convenient to later-stage management, and if the tail water treatment technology is reformed in the future, a large amount of disassembly or transformation is not needed, and recovery or pond cleaning can be realized only by taking out the modularized box body.
In some specific improved technical schemes, nano oxygenation pipes are respectively arranged at the 1/4, 1/2 and 3/4 heights of the second filtering dam 5, so that aeration and oxygenation can be fully performed on water with different heights.
In some specific improved technical schemes, the isolation part 71 is 3/4 of the height of the bottom of the isolation dam 7, the isolation part 71 is filled with zeolite with the diameter less than 10mm in a net cage to achieve the isolation effect, the filtering part 72 is arranged at the top 1/4 of the isolation dam, and the filtering part 72 is made of biological ceramsite filled in the net cage.
In some specific improved technical schemes, 2/3 of the bottom of the overflow air escape dam 9 is a separation wall 91, the separation wall 91 is formed by filling zeolite with the diameter less than 10mm in a PP net cage to achieve the separation effect, 1/3 of the top is a permeable wall 92, and the permeable wall 92 is formed by filling biological ceramsite in the PP net cage.
In some specific improved technical schemes, aquatic plants are planted at the top ends of the second filtering dam 5, the floating plate 61, the isolation dam 7, the first floating raft 41, the overflow air escape dam 9 and the second floating raft 101, a certain amount of biological ceramsite is placed in a frame at the top of the three dams, and the biological ceramsite accounts for 1/3-1/2 of the volume of the frame and is used for planting the aquatic plants; shellfish, snail and fish are raised in bulk in the adjusting tank 4, the biochemical tank 6 and the ecological tank 10; the structure of a specific floating plate, a first floating raft and a second floating raft is shown in the attached drawing 5, PVC pipes are spliced to form a main pipe net frame, then grids are fixed in the net frame, aquatic plants are planted on the grids, and four corners of the main pipe net frame are fixed at corresponding corners of the treatment pool by using pull ropes.
In some specific improved technical schemes, the aquatic plants are one or more of watermifoil, cress, watercress and windmill grass, and the planting density accounts for 60-80% of the area of the water surface or the top surface of the dam body;
the shellfish is hyriopsis cumingii or freshwater mussel, the snails are river snails, and the fishes are silver carps and bighead carps; wherein the stocking density of silver carps is 1/m 3 The stocking specification is 300-500 g/tail, and the stocking density of bighead carp is 0.5 tail/m 3 The stocking specification is 300-500 g/tail; breeding snails and shellfish at the bottom of the water body with the breeding density of 5-8 snails/m 2 (ii) a The culture density of the suspension cage is 1 suspension/m 2 。
The method principle for processing the aquaculture tail water by adopting the system of the technical scheme comprises the following steps as shown in the attached figure 6:
(1) Water enters from a water inlet of the treatment tank, is treated by the screen 21 and then falls into the filter tank 2, suspended matters intercepted by the screen 21 enter the collecting tank 31 for subsequent cleaning, and the filtered water enters the adjusting tank 4 through the water permeable holes 32 of the first filtering dam 3 in the filter tank 2;
(2) The water treated by the adjusting tank 4 enters a biochemical tank 6 after being subjected to oxygen increasing aeration treatment and filtration by a second filter dam 5;
(3) The water treated in the biochemical pool 6 overflows and is filtered by a filtering part 72 at the top end of the isolation dam 7 and then enters the micro filter 8;
(4) The water treated by the micro-filter 8 is filtered and overflowed by a permeable wall 92 of an overflow air escape dam 9, enters the ecological pool 10, and finally overflows from a water outlet at the top end of the ecological pool 10 after being treated by the ecological pool 10.
The effect of the present invention is further illustrated by the following specific processing data, as shown in the following table:
the processing result shows that the modular processing system and the method have good processing effect.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a modularization assembled aquaculture tail water processing system, is including setting gradually by intaking to the play water direction: the system comprises a filter tank, a first filter dam, a regulating tank, a second filter dam, a biochemical tank, an isolation dam, a micro filter, an overflow and escape dam and an ecological tank;
the filtering tank is communicated with the water inlet, and the top end of the filtering tank is provided with a screen;
the filtering tank is communicated with the adjusting tank through water permeable holes formed in a dam body of the filtering dam I;
a first floating raft is arranged on the water surface of the adjusting tank, and aquatic animals are cultured in the water body;
the dam body of the second filtering dam is made of a permeable material, filter materials are filled in the dam body, and a nano oxygenation pipe is arranged on the dam body;
a floating plate is arranged on the water surface of the biochemical pool, and aquatic organisms are cultured in the water body;
the bottom end of the isolation dam is provided with an isolation part, the top end of the isolation dam is provided with a filtering part, and the filtering part is filled with filter materials;
aquatic organisms are cultured in the microfiltration tank;
the overflow gas escape dam comprises a separation wall and a permeable wall from bottom to top, and the permeable wall is filled with filter materials;
a second floating raft is arranged on the water surface of the ecological pool, and aquatic organisms are cultured in the water body;
the ecological pool is communicated with the water outlet.
2. The modular assembly type aquaculture tail water treatment system according to claim 1, wherein two ends of the screen are respectively fixed on the wall of the filtering tank and the top end of the first filtering dam, the wall of the filtering tank is higher than the top end of the first filtering dam, the top end of the wall of the filtering tank is provided with a water collecting tank, and the top end of the first filtering dam is provided with a collecting tank.
3. The modular fabricated aquaculture tail water treatment system of claim 2 wherein said screen is of arcuate configuration, having an installation inclination angle of 45 ° and a mesh diameter of 0.10mm, and is made of stainless steel.
4. The modular assembly type aquaculture tail water treatment system of claim 1, wherein the second filtering dam, the isolation dam and the overflow vent dam are made of polypropylene net cages, and biological ceramsite is filled in the second filtering dam.
5. The modular assembly type aquaculture tail water treatment system as claimed in claim 4, wherein the bottom 3/4 of the isolation dam is provided with an isolation part, the top 1/4 of the isolation dam is provided with a filtering part, the isolation part is filled with zeolite materials with the diameter of less than 10mm, and the filtering part is filled with biological filter materials.
6. The modular assembly type aquaculture tail water treatment system of claim 4, wherein the bottom 2/3 of the overflow and escape dam is a separation wall, the top 1/3 of the overflow and escape dam is a water permeable wall, the separation wall is filled with zeolite materials with the diameter of less than 10mm, and the water permeable wall is filled with biological ceramsite.
7. The modular assembly type aquaculture tail water treatment system according to claim 1, wherein nano oxygenation tubes are respectively installed at the 1/4, 1/2 and 3/4 heights of the second filtering dam.
8. The modular fabricated aquaculture tail water treatment system of claim 1 wherein the top ends of said second filtration dam, said floating deck, said isolation dam, said first raft and said overflow vent dam, and said second raft are planted with aquatic plants; the water bodies in the adjusting tank, the biochemical tank and the ecological tank are used for freely culturing shellfish, snails and fishes; and hanging a cage in the water body of the microfiltration tank to culture the shellfish.
9. The modular assembly type aquaculture tail water treatment system of claim 1, wherein the aquatic plants are one or more of watermifoil, cress, watercress and windmill grass, and the planting density accounts for 60-80% of the area of the water surface or the top surface of the dam body;
the shellfish is hyriopsis cumingii or freshwater mussel, the snails are river snails, and the fishes are silver carps and bighead carps; wherein the stocking density of silver carps is 1/m 3 The stocking specification is 300-500 g/tail, and the stocking density of bighead carp is 0.5 tail/m 3 The stocking specification is 300-500 g/tail; breeding snails and shellfish at the bottom of the water body with the breeding density of 5-8 snails/m 2 。
10. A method of aquaculture tail water treatment using the system of any of claims 1-9, comprising the steps of:
(1) Water enters from a water inlet of the treatment tank, is treated by a screen and then falls into the filter tank, and enters the regulating tank through a permeable hole of a first filter dam in the filter tank;
(2) The water treated by the adjusting tank enters a biochemical tank after being subjected to oxygen increasing aeration treatment and filtration by a second filter dam;
(3) Overflowing and filtering the water treated in the biochemical pond through a filtering part at the top end of the isolation dam and then entering a micro-filter;
(4) The water treated by the micro-filter flows into the ecological pool after being filtered and overflowed by the permeable wall of the overflow escape dam, and finally flows out from the water outlet at the top end of the ecological pool after being treated by the ecological pool.
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| JP2002121720A (en) * | 2000-10-12 | 2002-04-26 | Kanto Regional Development Bureau Ministry Of Land Infrastructure & Transport | Levee drain structure and its construction method |
| KR100784400B1 (en) * | 2006-09-29 | 2007-12-12 | 주식회사 드림니어 | Lake and river clarifier |
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| CN115124203A (en) * | 2022-08-30 | 2022-09-30 | 东营市阔海水产科技有限公司 | Multi-cycle tail water treatment system |
| CN115191395A (en) * | 2022-01-06 | 2022-10-18 | 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) | Freshwater pond recirculating aquaculture device and system |
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2022
- 2022-12-20 CN CN202211642592.8A patent/CN115925173A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121720A (en) * | 2000-10-12 | 2002-04-26 | Kanto Regional Development Bureau Ministry Of Land Infrastructure & Transport | Levee drain structure and its construction method |
| KR100784400B1 (en) * | 2006-09-29 | 2007-12-12 | 주식회사 드림니어 | Lake and river clarifier |
| CN212713165U (en) * | 2020-07-13 | 2021-03-16 | 重庆水博士环保科技有限公司 | Aquaculture sewage purification system |
| CN113754204A (en) * | 2021-10-12 | 2021-12-07 | 中国水产科学研究院淡水渔业研究中心 | Aquaculture pollution prevention and control and water resource recycling system and operation method |
| CN115191395A (en) * | 2022-01-06 | 2022-10-18 | 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) | Freshwater pond recirculating aquaculture device and system |
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