CN114436405A - Water body in-situ ecological purification freshwater aquaculture system - Google Patents
Water body in-situ ecological purification freshwater aquaculture system Download PDFInfo
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- CN114436405A CN114436405A CN202210228539.7A CN202210228539A CN114436405A CN 114436405 A CN114436405 A CN 114436405A CN 202210228539 A CN202210228539 A CN 202210228539A CN 114436405 A CN114436405 A CN 114436405A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 196
- 238000000746 purification Methods 0.000 title claims abstract description 108
- 239000013505 freshwater Substances 0.000 title claims abstract description 24
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 22
- 238000009360 aquaculture Methods 0.000 title claims description 28
- 244000144974 aquaculture Species 0.000 title claims description 28
- 238000009395 breeding Methods 0.000 claims abstract description 7
- 230000001488 breeding effect Effects 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 64
- 239000002245 particle Substances 0.000 claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 5
- 239000006004 Quartz sand Substances 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- -1 ceramsite Chemical compound 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- 241000251468 Actinopterygii Species 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 241000108664 Nitrobacteria Species 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 235000005273 Canna coccinea Nutrition 0.000 description 2
- 240000008555 Canna flaccida Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000001477 organic nitrogen group Chemical group 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 244000205574 Acorus calamus Species 0.000 description 1
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 235000011996 Calamus deerratus Nutrition 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 241000209082 Lolium Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 235000005205 Pinus Nutrition 0.000 description 1
- 241000218602 Pinus <genus> Species 0.000 description 1
- 235000015696 Portulacaria afra Nutrition 0.000 description 1
- 241001647091 Saxifraga granulata Species 0.000 description 1
- 241000205578 Thalictrum Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 235000018747 Typha elephantina Nutrition 0.000 description 1
- 244000177175 Typha elephantina Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/107—Inorganic materials, e.g. sand, silicates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/15—N03-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Animal Husbandry (AREA)
- Inorganic Chemistry (AREA)
- Biotechnology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a fresh water culture system for in-situ ecological purification of a water body, which relates to the technical field of fresh water culture and comprises the following components: breeding area, ecological purification district, cloth basin, drainage zone, water circulation system. The ecological purification area is located the breed district outer, is drawn water to the water distribution groove on outer ecological purification district top layer from the breed district by the water pump, and rivers are downward through ecological purification district completion in the breed waste water pollutant such as organic matter, ammonia nitrogen get back to the breed district by the drainage area gravity flow circulation after the purification, have solved the water purification problem of fresh water culture in-process economically.
Description
Technical Field
The invention relates to the technical field of aquaculture wastewater treatment, in particular to a fresh water aquaculture system for in-situ ecological purification of a water body.
Background
With the improvement of the living standard of people in China, the demand of high-quality aquatic products is increasing day by day. However, the ecological environment protection strictly controls the fishing of wild aquatic products, the traditional fishing industry can not meet the requirements for a long time, and the aquaculture industry is developed vigorously. However, high-quality aquatic products need high-quality water quality as a basis, and water quality problems in the aquaculture process cause more and more attention.
The water quality problem in the culture process is mainly that the dissolved oxygen is too low, the water body is acidified, the ammonia nitrogen concentration is increased due to the accumulation of fish excrement, excessive fish feed residues, fish medicines and the like in the water body, so that the oxygen carrying capacity of the fish is reduced, the anoxia is generated, the metabolism of the fish is slow, the morbidity of the fish is increased, and the quality and the yield of aquatic products are seriously influenced.
At present, the water quality guarantee technology of aquaculture mainly comprises aeration, oxygenation, lime throwing and regulation of water pH, and industrial circulating water culture biological filtration technologies, such as a sand filter and the like. Then, the water quality is maintained by means of physicochemical action, the natural water environment condition cannot be guaranteed, and the cost is high, so that how to develop a natural-based aquaculture water quality solution and realizing the in-situ ecological purification of the aquaculture water body with low cost is the key of the healthy development of the modern aquaculture industry.
Disclosure of Invention
The invention aims to provide a fresh water aquaculture system for in-situ ecological purification of a water body, which solves the problems in the prior art and promotes the green and healthy development of the fresh water aquaculture industry.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a water body in-situ ecological purification fresh water culture system which comprises a culture area, an ecological purification area, a water inlet well and a drainage well, wherein the culture area and the ecological purification area are concentrically arranged, the culture area is in the center, and the ecological purification area is around; the water inlet well and the water drainage well are distributed in the ecological purification area;
granular fillers are filled in the ecological purification area in a layered mode, and the surface of the fillers in the ecological purification area is higher than the water level of the culture area; the water inlet well is connected with the culture area through a water inlet pipe, a water pump is arranged on the water inlet pipe, the bottom of the water inlet well is separated from the ecological purification area, the surface of the water inlet well is communicated with the ecological purification area through a water distribution groove, and finally the water inlet well flows into a drainage well through the bottom of the drainage well; the upper part of the drainage well is separated from the ecological purification area, and the bottom of the drainage well is communicated with the ecological purification area through a water outlet; and the water of the drainage well is conveyed to the bottom mud layer at the bottom of the culture area through a water return pipe.
Preferably, the culture area is of a circular or square structure, the water depth in the culture area is 1.5-3m, and the ratio of the construction volume of the ecological purification area to the water capacity of the culture area is 1:3-1: 10.
Preferably, the total height of the filler layer in the ecological purification area is 70-110 cm; the layered filling particle filler in the ecological purification area sequentially comprises the following components from top to bottom: the first layer is a coarse grain filler with the grain size of 10-20mm and the thickness of 10-20 cm; a second layer, medium particle filler, with particle size of 8-15mm and thickness of 30-40 cm; a third layer, fine grain filler, the particle diameter is 3-8mm, and the thickness is 20-30 cm; the fourth layer is coarse grain filler with the grain diameter of 10-20mm and the thickness of 10-20 cm; the surface of the filler in the ecological purification area is 60-90cm higher than the designed water level in the culture area.
Preferably, the coarse filler is gravel or crushed stone; the medium particle filler or the fine particle filler is one or a mixture of more of zeolite, ceramsite, quartz sand, biochar, coke, river sand and gravel materials.
Preferably, the width of the water distribution tank is 20-40 cm; the water distribution tank is horizontally arranged on the outer side wall of the ecological purification area and is connected with the water inlet well, and overflow weirs are arranged on two sides of the water distribution tank.
Preferably, two water outlets are arranged at the bottom of the drainage well, the two water outlets are respectively positioned at equal height positions of the lower parts of two wall bodies connected with the drainage well and the ecological purification area, and the height of the water outlets is positioned 10-20cm above the bottom of the ecological purification area.
Preferably, one or more water inlet wells and one or more water outlet wells can be arranged according to the cultivation density and the water treatment amount of the cultivation area, and the water inlet wells and the water outlet wells can be symmetrically distributed or distributed at intervals.
Compared with the prior art, the invention has the following beneficial technical effects:
the system for the in-situ ecological purification of the water body for the freshwater aquaculture removes pollutants generated in the freshwater aquaculture process by using the ecological method through the combined action of plants, fillers and microorganisms, realizes the in-situ purification of the water body, greatly reduces the cost, and solves the problem of water quality guarantee in the freshwater aquaculture process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a fresh water aquaculture system for in-situ ecological purification of a water body;
FIG. 2 is a top view of FIG. 1 when the farm is in a circular configuration;
FIG. 3 is a top view of FIG. 1 when the farm is in a square configuration;
FIG. 4 is a side view of the biological purification zone and drainage wells;
wherein, 1, a culture area; 2, an ecological purification area; 3, feeding water into the well; 4, a drainage well; 5, a water inlet pipe; 6, a water pump; 7, a water distribution tank; 8, a water outlet; 9, a water return pipe; 10 bottom mud layer; 11 water level; 12 an aquatic plant; 13 a particulate filler.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
The invention aims to provide a fresh water aquaculture system for in-situ ecological purification of a water body, which solves the problems in the prior art and promotes the green and healthy development of the fresh water aquaculture industry.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-4, the present embodiment provides an in-situ ecological purification freshwater aquaculture system for a water body, comprising: a central breeding area 1 and an outer ecological purifying area 2. Breed district 1 and ecological purification district 2 and be concentric structure, breed district 1 at the center, ecological purification district 2 is around, and inlet well 3 and drainage well 4 distribute in ecological purification district 2.
Specifically, the culture area 1 is of a round or square structure, the water depth is 1.5-3m, and the ratio of the construction volume of the ecological purification area 2 to the designed water capacity of the culture area 1 is 1:3-1: 10.
The ecological purification area 2 is filled with granular packing 13 in a layered mode, and the total height of the packing layer is 70-110 cm. The layered filling particle filler 13 in the ecological purification area 2 sequentially comprises the following components from top to bottom: the first layer is coarse grain filler with the grain size of 10-20mm and the thickness of 10-20 cm; a second layer, medium particle filler, with particle size of 8-15mm and thickness of 30-40 cm; a third layer, fine grain filler, the particle diameter is 3-8mm, and the thickness is 20-30 cm; the fourth layer is coarse grain filler with the grain size of 10-20mm and the thickness of 10-20cm, and the surface of the filler of the ecological purification area 2 is 60-90cm higher than the designed water level of the culture area 1.
Furthermore, the coarse grain fillers of the first layer and the fourth layer can be gravels and gravels; the second layer and the third layer of particle fillers can be one or a mixture of more of zeolite, ceramsite, quartz sand, biochar, coke, river sand and gravel materials.
The wet emergent aquatic plants are planted on the filler in the ecological purification area 2 and can be one or a plurality of canna, reed, calamus, pinus avicularis, thalictrum ramosissimum, saxifrage, ryegrass and elephant grass.
The water inlet well 3 is of a square structure, the bottom of the water inlet well is separated from the ecological purification area 2, the surface of the water inlet well 3 is communicated with the ecological purification area 2 through the water distribution groove 7, the water pump 6 pumps the water in the cultivation area 1 into the water inlet well 3, the water level of the water inlet well 3 continuously rises, the water inlet well flows into and is full of the water distribution groove 7 after reaching the height position of the water distribution groove 7, the water flows into the ecological purification area 2 through overflow weirs on two sides of the water distribution groove 7, the granular filler 13 filled in the ecological purification area 2 in a layered mode is filtered downwards, and finally the water flows into the drainage well 4 through a water outlet 8 at the bottom of the drainage well 4.
Wherein, the width of the water distribution tank 7 is 20-40cm, and the width of the single tank service water distribution is 30-100 cm; the water distribution tank is horizontally arranged on the outer side wall of the ecological purification area 2 and is connected with the water inlet well 3, and overflow weirs are arranged on two sides of the water distribution tank 7 to ensure uniform water distribution; when the area of the ecological purification area 2 is larger and the width exceeds 100cm, the number of the water distribution grooves 7 is increased.
Furthermore, the drainage well 4 is of a square structure, the upper part of the drainage well is separated from the ecological purification area 2, the bottom of the drainage well is communicated with the ecological purification area 2 through a water outlet 8, the water outlet 8 is positioned at the lower part of a wall body connected with the drainage well 4 and the ecological purification area 2, and the height of the water outlet is 10-20cm above the bottom of the ecological purification area 2; a water return pipe 9 is arranged 5-10cm above the bottom of a wall body connected with the water drainage well 4 and the culture area 1, and water in the water drainage well 4 is conveyed to a bottom mud layer 10 at the bottom of the culture area 2 through the water return pipe 9.
According to the breeding density and the size of the treated water quantity of the breeding area 1, one or more water inlet wells 3 and one or more water drainage wells 4 can be arranged, and the water inlet wells 3 and the water drainage wells 4 can be symmetrically distributed or distributed at intervals so as to be beneficial to the movement of water inlet and outlet flows, so that the water body of the breeding area 1 can effectively circulate, and the water quality is kept uniform.
The ecological purifying area 2 is an aerobic environment, and oxygen mainly comes from oxygen secreted by plant roots and atmospheric reoxygenation. Specifically, the method comprises the following steps: the culture water body is discharged from the water outlet holes after entering the ecological purification area 2 through the water distribution groove 7, and negative pressure can be generated in the filler pores in the continuous flowing and discharging process of water flow, so that more air enters the filler pores of the ecological purification area 2 to form an aerobic environment, and a large amount of aerobic microorganisms such as nitrobacteria and the like are enriched; the stem of the selected hygrophyte has good ventilation tissue, and oxygen can be transmitted to the root from the leaf and secreted into the filler around the root;
the purification process of the aquaculture water body comprises the following steps: after entering the ecological purification area 2 from the surface, the water is firstly filtered and intercepted by a first coarse particle filler layer; then, soluble pollutants and small particulate matters enter a second layer and a third layer of deep purification packing layers along with the water body, organic nitrogen and ammonia nitrogen are fully degraded into nitrate nitrogen under the action of nitrobacteria and aerobic microorganisms, organic matters in the water body are converted into carbon dioxide gas, finally, the organic matters are collected by a coarse grain packing layer on a fourth layer and enter a drainage well, the organic matters circularly flow back to a bottom mud layer 10 of the culture area, in the area, the nitrate nitrogen generated by the ecological purification area 2 is mixed with the organic matters, the nitrate nitrogen is converted into nitrogen under the action of denitrifying bacteria, degradation of the organic matters such as fish excrement and the like remaining at the bottom of the culture area is synchronously completed, and therefore in-situ ecological purification of the water body is completed.
Example one
The invention provides a water body in-situ ecological purification freshwater aquaculture system, as shown in figure 1, comprising: a culture area 1 and an ecological purification area 2.
The culture area 1 is of a circular structure, the water depth is 2m, the water surface area is 100m2, the water capacity is 200m3 under the condition of the designed water level of the culture area 1, the ratio of the construction volume of the ecological purification area 2 to the designed water capacity of the culture area 1 is 1:4, and the construction effective volume of the ecological purification area 2 is 50m3；
The ecological purifying area 2 is arranged at the periphery of the culture area 1 and has the same concentric circular ring structure with the culture area 1, the width of the circular ring is 1m, the filling height of the filler is 1m, and the total effective volume is 50m3；
The layered filling particle filler 13 in the ecological purification area 2 sequentially comprises the following components from top to bottom: a first layer, coarse grain filler, with the grain size of 20mm and the thickness of 10 cm; a second layer, medium particle filler, with the particle size of 8-15mm and the thickness of 40; a third layer, fine grain filler, the particle diameter is 3-8mm, and the thickness is 20 cm; the fourth layer is coarse grain filler with the grain diameter of 10-20mm and the thickness of 20cm, and the surface of the filler in the ecological purification area 2 is 80cm higher than the designed water level in the culture area 1;
the first layer and the fourth layer of coarse grain filler can be gravel, the second layer of filler is coke, and the third layer of particle filler is quartz sand;
planting a hygrophyte emerged canna on the filler in the ecological purification area 2;
the width of the water distribution groove 7 is 30cm, and the water distribution groove is formed in a single way;
in the embodiment, only one water inlet well 3 and one water outlet well 4 are arranged, the water inlet well 3 is of a square structure, the side length is 1m, the bottom of the water inlet well is separated from an ecological purification area 2, the surface of the water inlet well 3 is communicated with the ecological purification area 2 through a water distribution groove 7, water in a culture area 1 is pumped into the water inlet well 3 by a water pump 6, the water level of the water inlet well 3 continuously rises, the water inlet well 3 flows into and fills the water distribution groove 7 after reaching the height position of the water distribution groove 7, flows into the purification area through overflow weirs on two sides of the water distribution groove 7, downwards trickles and filters granular fillers 13 filled in the purification area in a layering way, and finally flows into a water drainage well 4 through a water outlet 8 at the bottom of the water drainage well 4;
the drainage well 4 is of a square structure, the side length is 1m, the upper part of the drainage well is separated from the ecological purification area 2, the bottom of the drainage well is communicated with the ecological purification area 2 through a water outlet 8, two water outlets 8 are arranged at the lower parts of two wall bodies connected with the drainage well 4 and the ecological purification area 2 respectively, and the central height of the pipe is 15cm above the bottom of the purification area;
a water return pipe 9 is arranged at a position 10cm above the bottom of a wall body connected with the water drainage well 4 and the culture area 1, and water in the water drainage well 4 is conveyed to a bottom mud layer 10 at the bottom of the culture area 1 through the water return pipe 9;
the ecological purifying area 2 is an aerobic environment, and oxygen mainly comes from oxygen secreted by plant roots and atmospheric reoxygenation. Specifically, the method comprises the following steps: the culture water body is discharged from the water outlet holes after entering the ecological purification area 2 through the water distribution groove 7, and negative pressure can be generated in the filler pores in the continuous flowing and discharging process of water flow, so that more air enters the filler pores of the purification area to form an aerobic environment, and a large amount of aerobic microorganisms such as nitrobacteria and the like are enriched; the stem of the selected hygrophyte has good ventilation tissue, and oxygen can be transmitted to the root from the leaf and secreted into the filler around the root;
the purifying process of the aquaculture water body comprises the following steps: after entering the ecological purification area 2 from the surface, the water is firstly filtered and intercepted by a first coarse particle filler layer; then, soluble pollutants and small particulate matters enter a second layer and a third layer of deep purification packing layers along with the water body, organic nitrogen and ammonia nitrogen are fully degraded into nitrate nitrogen under the action of nitrobacteria and aerobic microorganisms, organic matters in the water body are converted into carbon dioxide gas, finally, the organic matters are collected by a coarse grain packing layer on a fourth layer and enter a drainage well 4, the organic matters circularly flow back to a bottom mud layer 10 of the culture area, in the area, the nitrate nitrogen generated by the ecological purification area 2 is mixed with the organic matters, the nitrate nitrogen is converted into nitrogen under the action of denitrifying bacteria, degradation of the organic matters such as fish excrement and the like remaining at the bottom of the culture area is synchronously completed, and therefore in-situ ecological purification of the water body is completed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (7)
1. A water body in-situ ecological purification freshwater aquaculture system is characterized in that: the ecological water purification system comprises a culture area, an ecological purification area, a water inlet well and a water drainage well, wherein the culture area and the ecological purification area are concentrically arranged, the culture area is positioned in the center, and the ecological purification area is positioned at the periphery of the culture area; the water inlet well and the water drainage well are distributed at the ecological purification area;
granular fillers are filled in the ecological purification area in a layered mode, and the surface of the fillers in the ecological purification area is higher than the water level of the culture area; the water inlet well is connected with the culture area through a water inlet pipe, a water pump is arranged on the water inlet pipe, the bottom of the water inlet well is separated from the ecological purification area, and the surface of the water inlet well is communicated with the ecological purification area through a water distribution groove; the upper part of the drainage well is separated from the ecological purification area, and the bottom of the drainage well is communicated with the ecological purification area through a water outlet; and the water of the drainage well is conveyed to the bottom mud layer at the bottom of the culture area through a water return pipe.
2. The in-situ ecological water purification and fresh water culture system of the water body as claimed in claim 1, wherein: the culture area is of a round or square structure, the water depth in the culture area is 1.5-3m, and the ratio of the construction volume of the ecological purification area to the water capacity of the culture area is 1:3-1: 10.
3. The in-situ ecological purification freshwater aquaculture system of water body of claim 1, characterized in that: the total height of the filler layer in the ecological purification area is 70-110 cm; the layered filling particle filler in the ecological purification area sequentially comprises the following components from top to bottom: the first layer is a coarse grain filler, the particle size of the coarse grain filler is 10-20mm, and the thickness of the coarse grain filler is 10-20 cm; a second layer, a medium particle filler, wherein the particle size of the medium particle filler is 8-15mm, and the thickness of the medium particle filler is 30-40 cm; a third layer, fine grain filler, wherein the grain diameter of the fine grain filler is 3-8mm, and the thickness of the fine grain filler is 20-30 cm; the fourth layer is a coarse grain filler, the particle size of the coarse grain filler is 10-20mm, and the thickness of the coarse grain filler is 10-20 cm; the surface of the filler in the ecological purification area is 60-90cm higher than the designed water level in the culture area.
4. The in-situ ecological purification freshwater aquaculture system of water body of claim 3, characterized in that: the coarse grain filler is gravel or broken stone; the medium particle filler or the fine particle filler is one or a mixture of more of zeolite, ceramsite, quartz sand, biochar, coke, river sand and gravel materials.
5. The in-situ ecological purification freshwater aquaculture system of water body of claim 1, characterized in that: the width of the water distribution tank is 20-40 cm; the water distribution tank is horizontally arranged on the outer side wall of the ecological purification area and is connected with the water inlet well, and overflow weirs are arranged on two sides of the water distribution tank.
6. The in-situ ecological purification freshwater aquaculture system of water body of claim 1, characterized in that: two water outlets are arranged at the bottom of the drainage well, the two water outlets are respectively positioned at equal height positions of the lower parts of two wall bodies connected with the drainage well and the ecological purification area, and the height of the water outlets is positioned at a position which is 10-20cm above the bottom of the ecological purification area.
7. The in-situ ecological purification freshwater aquaculture system of water body of claim 1, characterized in that: one or more water inlet wells and drainage wells can be arranged according to the breeding density and the treated water quantity of the breeding area, and the water inlet wells and the drainage wells can be symmetrically distributed or distributed at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228539.7A CN114436405A (en) | 2022-03-10 | 2022-03-10 | Water body in-situ ecological purification freshwater aquaculture system |
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|---|---|---|---|
| CN202210228539.7A CN114436405A (en) | 2022-03-10 | 2022-03-10 | Water body in-situ ecological purification freshwater aquaculture system |
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| CN114436405A true CN114436405A (en) | 2022-05-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117164167A (en) * | 2023-10-13 | 2023-12-05 | 江苏龙腾工程设计股份有限公司 | Fishery photovoltaic complementary ecological filtration dam system for aquaculture tail water |
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2022
- 2022-03-10 CN CN202210228539.7A patent/CN114436405A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117164167A (en) * | 2023-10-13 | 2023-12-05 | 江苏龙腾工程设计股份有限公司 | Fishery photovoltaic complementary ecological filtration dam system for aquaculture tail water |
| CN117164167B (en) * | 2023-10-13 | 2024-03-29 | 江苏龙腾工程设计股份有限公司 | Fishery photovoltaic complementary ecological filtration dam system for aquaculture tail water |
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