CN117530224A - Cultivation system and cultivation method - Google Patents

Abstract

The application relates to the technical field of cultivation sewage treatment, in particular to a cultivation system and a cultivation method. The cultivation system comprises a cultivation pond, a purifying device and a bait pond. The culture pond is used for culturing target aquatic products. The purifying equipment is communicated with the culture pond and is used for extracting tail water in the culture pond so as to treat the tail water to form fertilizer water. The bait pond is used for culturing bait aquatic products, and the bait aquatic products are used for feeding target aquatic products; the bait pond is communicated with the purifying equipment, the purifying equipment conveys the fat water to the bait pond so as to purify the fat water into first circulating water, and the bait pond is selectively communicated with the culture pond. The tail water can be purified through the purification equipment and the bait pond, and the tail water can be conveyed back to the culture pond after being purified, namely, the target aquatic product is cultured in a circulating water culture mode, so that the cost of tail water treatment is reduced, meanwhile, the yield of the bait aquatic product can be improved in the purification process, and the raising cost of the target aquatic product is reduced, so that the raising cost is reduced.

Description

Cultivation system and cultivation method

Technical Field

The application relates to the technical field of cultivation sewage treatment, in particular to a cultivation system and a cultivation method.

Background

Along with popularization of the intensive aquaculture mode, organic matters in water body are seriously out of standard due to high density and high feeding, so that water body pollution in a pond is serious, and healthy development of aquaculture industry is influenced, and therefore, treatment of tail water becomes a problem to be solved urgently in aquaculture industry.

In the related art, a tail water treatment system for treating tail water generally includes an ecological ditch, a sedimentation tank, a filtering dam, an aeration tank, a filtering dam, and an ecological purification tank, but the floor space of the above-mentioned tail water treatment system is large, resulting in high cultivation costs.

Disclosure of Invention

The application discloses a cultivation system and a cultivation method, which can reduce the cost of tail water treatment.

To achieve the above object, in a first aspect, the present application discloses a cultivation system, comprising:

the cultivation pond is used for cultivating target aquatic products;

the purifying equipment is communicated with the culture pond and used for extracting tail water in the culture pond so as to treat the tail water to form fertilizer water; and

the bait pond is used for culturing bait aquatic products, and the bait aquatic products are used for feeding the target aquatic products; the bait pond is communicated with the purifying equipment, the purifying equipment conveys the fat water to the bait pond so as to purify the fat water into first circulating water, and the bait pond is selectively communicated with the culture pond.

Optionally, the number of the bait ponds is a plurality, a plurality of the bait ponds are sequentially communicated, the bait pond positioned at the most upstream is communicated with the purifying equipment, and the bait pond positioned at the most downstream is selectively communicated with the culture pond.

Optionally, the bait pond comprises:

a first bait pond communicated with the purifying device, wherein the purifying device conveys the fat water to the first bait pond;

a second bait pond communicated with the first bait pond;

a third bait pond communicated with the second bait pond; and

and the fourth bait pond is communicated with the third bait pond and is selectively communicated with the culture pond.

Optionally, the culture system further comprises a one-way valve, the bait pond is selectively communicated with the culture pond through the one-way valve, and when the liquid level of the culture pond is lower than that of the bait pond, the one-way valve is opened, so that the first circulating water of the bait pond flows into the culture pond.

Optionally, the cultivation system further comprises:

the detection equipment is used for detecting whether the water quality of the bait pond reaches the cultivation standard or not; and

an ecological ditch selectively communicating with the bait pond to purify water conveyed by the bait pond.

Optionally, the cultivation system further comprises a control unit, when the detection device detects that the water quality of the bait pond does not reach the cultivation standard, the control unit controls the bait pond to be communicated with the ecological ditch and controls the bait pond to be disconnected from the cultivation pond so as to convey the water of the bait pond to the ecological ditch; when the detection equipment detects that the water quality of the bait pond reaches the cultivation standard, the control unit controls the bait pond to be disconnected from the ecological ditch and controls the bait pond to be communicated with the cultivation pond.

Optionally, the purifying apparatus includes:

the first-stage purification device is communicated with the culture pond and is used for extracting tail water in the sample pond so as to form a second circulating water and solid-liquid mixture through treatment, and the first-stage purification device conveys the second circulating water to the culture pond; and

the secondary purification device is communicated with the primary purification device and the bait pond, the primary purification device conveys the solid-liquid mixture to the secondary purification device, the secondary purification device processes the solid-liquid mixture to form fertilizer water, and the secondary purification device conveys the fertilizer water to the bait pond.

Optionally, the secondary purifying device comprises a septic tank configured to treat the solid-liquid mixture to form the fat water and to anaerobically treat the fat water.

In a second aspect, the present application further discloses a cultivation method, which is applied to the cultivation system, and includes:

delivering the tail water of the culture pond to the purifying equipment;

the purifying equipment is used for treating the tail water to form the fat water and conveying the fat water to the bait pond;

the bait pond purifies the fat water into the first circulating water, and the first circulating water is conveyed to the culture pond when the bait pond is communicated with the culture pond.

Optionally, the cultivation system further comprises a detection device and a control unit, and the method further comprises:

the detection equipment detects whether the water quality of the bait pond reaches the cultivation standard;

when the water quality of the bait pond does not reach the cultivation standard, the control unit controls the bait pond to be communicated with the ecological ditch and controls the bait pond to be disconnected from the cultivation pond;

when the water quality of the bait pond reaches the cultivation standard, the control unit controls the bait pond to be disconnected from the ecological ditch and controls the bait pond to be communicated with the cultivation pond.

Compared with the prior art, the beneficial effect of this application lies in:

the utility model provides a farming systems and farming methods can purify the tail water through clarification plant and bait pond, and can carry back to breed the pond after the tail water purifies, adopts circulating water to breed the mode of target aquatic products promptly, has reduced tail water treatment's cost, can improve the output of bait aquatic products simultaneously in purification process, has reduced the cost of raising of target aquatic products to the cost of breeding has been reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a first embodiment of a farming system provided herein;

FIG. 2 is a schematic structural view of a second embodiment of the farming system provided herein;

FIG. 3 is a schematic flow chart of a cultivation method according to an embodiment of the present disclosure;

FIG. 4 is a flow chart of one embodiment of step 300 of FIG. 3.

Description of the main reference numerals

1-a culture system;

11-a culture pond;

12-a purification device; 121-a primary purification device; 1211-a primary purification device; 1211 a-a first fluid reservoir; 1211 b-a first hierarchical component; 1211 c-an aeration assembly; 1211 d-a foam separation assembly; 1212-a secondary purification device; 1212 a-a second reservoir; 1212 b-a second hierarchical component; 122-a secondary purification device; 1221-septic tanks;

13-bait pond; 131-a first bait pond; 132-a second bait pond; 133-a third bait pond; 134-fourth bait pond;

14-ecological ditch.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In this application, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In addition, the terms "first," "second," etc. are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of indicated devices, elements, or components. Unless otherwise indicated, the meaning of "a plurality" is two or more.

In the related art, a tail water treatment system for treating tail water generally includes an ecological ditch, a sedimentation tank, a filtering dam, an aeration tank, a filtering dam and an ecological purifying tank, that is, tail water in a pond is generally purified by the ecological ditch, the sedimentation tank, the filtering dam, the aeration tank, the filtering dam and the ecological purifying tank in sequence, so that the tail water can reach the standard of being recycled or discharged to a river. However, the mode of purifying the tail water is suitable for the freshwater aquaculture pond with the area of more than 50 mu and concentrated connection, the area of the tail water treatment system generally accounts for 6% -8% of the total aquaculture area, the construction cost per mu can reach 5000-8000 yuan, the maintenance cost per mu is as high as 7.4 ten thousand yuan each year, the occupied area is large, and the aquaculture cost is high. Based on the above, the application discloses a cultivation system and a cultivation method to improve the above problems. The technical scheme of the present application will be further described with reference to specific embodiments and drawings.

Referring to fig. 1, in a first aspect, an embodiment of the present application discloses a cultivation system 1 comprising a cultivation pond 11, a purification device 12 and a bait pond 13. The culture pond 11 is used for culturing target aquatic products. The purifying device 12 is communicated with the culture pond 11 and is used for extracting tail water in the culture pond 11 so as to treat and form fertilizer water. The bait pond 13 is used for culturing bait aquatic products, and the bait aquatic products are used for feeding target aquatic products; the bait pond 13 is communicated with the purifying device 12, the purifying device 12 conveys the fertilizer water to the bait pond 13 so as to purify the fertilizer water into first circulating water, and the bait pond 13 is selectively communicated with the culture pond 11.

The tail water is a water body with rich nutrient substances and organic matters, and meanwhile, the oxygen content in the tail water is lower.

After the tail water is extracted by the purifying device 12, most of impurities such as scraps in the tail water are removed through physical means, meanwhile, the water ratio is reduced, and the fertilizer water is obtained after concentration, that is, the concentration of substances such as nitrogen, phosphorus, organic proteins, excrement and the like in the fertilizer water is high.

After the tail water is treated by the purifying equipment 12 to obtain fat water, the fat water is conveyed into the bait pond 13. Because nitrogen is the basis of protein and the like, phosphorus is an important element in nucleic acid, phospholipid and energy metabolism, phytoplankton can absorb inorganic nitrogen compounds and inorganic phosphorus compounds in water and convert the inorganic nitrogen compounds and inorganic phosphorus compounds into organic substances by utilizing photosynthesis, thereby promoting the growth and propagation of the phytoplankton and meeting the nutrition requirements of the phytoplankton, and therefore, the nitrogen and the phosphorus are vital to the growth and propagation of the phytoplankton. Therefore, after the fertilizer water is conveyed to the bait pond 13, the nitrogen and phosphorus content in the bait pond 13 can be increased in a short time so as to promote the growth and propagation of phytoplankton in the bait pond 13, absorb nitrogen and phosphorus in the process of mass propagation of phytoplankton, and can also reduce the nitrogen and phosphorus content in the bait pond 13 in turn so as to improve the quality of the fertilizer water. In this embodiment, the phytoplankton may be algae, such as green algae, diatom, dinoflagellate, chrysophyte, yellow algae, etc., and is not limited thereto.

Meanwhile, in the growth and propagation process of algae, the algae can absorb carbon dioxide in water through photosynthesis and release oxygen, so that the oxygen content of water quality in the bait pond 13 can be increased, and the water quality of fat water is further improved.

It will be appreciated that the bait water in the bait pond 13 can feed on phytoplankton such as algae, so that after the phytoplankton such as algae grow and reproduce in a large amount, the food sources of the bait aquatic products can be enriched, and the yield of the bait aquatic products can be improved. Meanwhile, the bait aquatic products can also take the excrement and the organic protein as food, so that after the fertilizer water is conveyed to the bait pond 13, the content of the excrement and the organic protein in the bait pond 13 can be increased in a short time, and after the bait aquatic products eat the excrement and the organic protein, the content of the excrement and the organic protein in the bait pond 13 can be reduced in turn, so that the quality of the fertilizer water is further improved.

In summary, after the fat water is delivered to the bait pond 13, the bait pond 13 can reduce the content of nitrogen, phosphorus, organic protein and fecal pollutants in the fat water through phytoplankton, bait aquatic products and the like, and can increase the oxygen content of the fat water through the phytoplankton at the same time, thereby improving the quality of the fat water and purifying the fat water into the first circulating water. It should be noted that the water in the bait pond 13 near the culture pond 11 is the first circulating water.

In addition, the target aquatic product in the culture pond 11 can feed on the bait aquatic product in the bait pond 13, so that after the yield of the bait aquatic product is improved, the food source of the target aquatic product can be enriched, the consumption of the bait except the bait aquatic product in the bait pond 13 is reduced, and the culture cost is reduced. In this embodiment, the target aquatic product may be Osmanthus fragrans, and the bait aquatic product may be silver carp, bighead carp, dace, sinilabeo, tigea, carassius auratus, cyprinus Carpio, etc. Of course, the target aquatic product and the bait aquatic product may be of other types, and are not limited herein.

It should be noted that the selective communication between the bait pond 13 and the culture pond 11 means that the bait pond 13 and the culture pond 11 are in a disconnection state at ordinary times, and when the culture pond 11 lacks water or has a tendency of lacking water, the bait pond 13 and the culture pond 11 can be converted from the disconnection state to the communication state, so that the first circulating water can be conveyed from the bait pond 13 to the culture pond 11, thereby achieving the purpose of supplementing water to the culture pond 11.

For example, when the cultivation system 1 provided in this example was not employed, the tail water detection result of the cultivation pond 11 showed that the content of solid impurities was 122mg/L, the total nitrogen content was 21.2mg/L, and the total phosphorus content was 0.88mg/L.

After 18 days of the cultivation system 1 provided in this example, the tail water detection result of the cultivation pond 11 showed that the content of solid impurities was 16mg/L, the total nitrogen content was 4.9mg/L, and the total phosphorus content was 0.93mg/L.

After 2 months of the cultivation system 1 provided in the embodiment, the tail water detection result of the cultivation pond 11 shows that the content of solid impurities is 84mg/L, the total nitrogen content is 4.7mg/L, and the total phosphorus content is 0.23mg/L.

After 7 months of the cultivation system 1 provided by the embodiment, the tail water detection result of the cultivation pond 11 shows that the content of solid impurities is 7mg/L, the total nitrogen content is 1.2mg/L, and the total phosphorus content is 0.04mg/L.

In the national secondary emission standard, the content of solid impurities is less than or equal to 100mg/L, the total nitrogen content is 5mg/L, and the total phosphorus content is 1mg/L, so that after the cultivation system 1 provided by the embodiment is adopted, the emission standard of tail water accords with the national secondary emission standard, and the water quality of the tail water is obviously improved.

To sum up, this embodiment can purify the tail water through clarification plant 12 and bait pond 13, and can carry back to breed pond 11 after the tail water purifies, adopts circulating water to breed the mode of breeding the target aquatic products promptly, has reduced tail water treatment's cost, can improve the output of bait aquatic products simultaneously in purification process, has reduced the cost of breeding of target aquatic products to the cost of breeding has been reduced.

With continued reference to fig. 1, in some embodiments, the number of bait ponds 13 is plural, the plurality of bait ponds 13 are in communication in sequence, the most upstream bait pond 13 is in communication with the purification device 12, and the most downstream bait pond 13 is in selective communication with the culture pond 11.

The plurality of bait ponds 13 are communicated in sequence, the purifying device 12 conveys the fat water into the bait pond 13 positioned at the most upstream, and at least part of the fat water flows in the plurality of bait ponds 13 along the communication sequence of the bait ponds 13. It will be appreciated that each time the fat water flows through one bait pond 13, the fat water is purified more than once, in other words, the plurality of bait ponds 13 purify the fat water a plurality of times, and the first circulating water of the bait pond 13 located most downstream is formed, and the water quality of the first circulating water is the best.

When the culture pond 11 is communicated with the bait pond 13 positioned at the most downstream, the first circulating water is conveyed to the culture pond 11, so that the purpose of supplementing water to the culture pond 11 is achieved, and the water quality of the culture pond 11 can be improved due to the best water quality of the first circulating water, the water quality of the culture pond 11 is prevented from being reduced, and the health of the water quality of the culture pond 11 is ensured.

Therefore, the bait ponds 13 can purify the fat water for a plurality of times so as to ensure the water quality of the first circulating water formed after the fat water is purified, and avoid the water quality of the cultivation pond 11 from being reduced after the first circulating water is conveyed to the cultivation pond 11.

In other embodiments, the number of bait ponds 13 may be one.

With continued reference to fig. 1, in some embodiments, the bait pond 13 includes a first bait pond 131, a second bait pond 132, a third bait pond 133, and a fourth bait pond 134. The first bait pond 131 is communicated with the purifying device 12, the purifying device 12 conveys fat water to the first bait pond 131, the second bait pond 132 is communicated with the first bait pond 131, the third bait pond 133 is communicated with the second bait pond 132, and the fourth bait pond 134 is communicated with the third bait pond 133 and is selectively communicated with the culture pond 11.

Through setting up first bait pond 131, second bait pond 132, third bait pond 133 and fourth bait pond 134 that communicate in proper order, when clarification plant 12 carries the fat water to first bait pond 131 in, at least partial fat water flows to fourth bait pond 134 along first bait pond 131, second bait pond 132, third bait pond 133 and the order of fourth bait pond 134 in, the fat water that flows to fourth bait pond 134 can take out the pollutant content of the vast majority nitrogen, phosphorus, organic protein and excrement in the fat water through four times purification to make the quality of the first circulating water that forms higher.

Meanwhile, the bait aquatic products in the first bait pond 131, the second bait pond 132, the third bait pond 133 and the fourth bait pond 134 can provide sufficient food sources for the target aquatic products in the culture pond 11, so that the supply of additional feeds for feeding the target aquatic products to the culture pond 11 can be avoided, and the feeding cost is reduced sufficiently.

In summary, the first bait pond 131, the second bait pond 132, the third bait pond 133 and the fourth bait pond 134 are arranged, so that the raising cost can be sufficiently reduced on the basis of ensuring the water quality of the first circulating water.

In other embodiments, the bait pond 13 can further include a fifth bait pond 13, the fifth bait pond 13 being in communication between the third bait pond 133 and the fourth bait pond 134.

In some embodiments, the culture system 1 further comprises a one-way valve (not shown in the figures) through which the bait pond 13 is selectively connected to the culture pond 11, the one-way valve being opened when the liquid level of the culture pond 11 is lower than the liquid level of the bait pond 13, so that the first circulating water of the bait pond 13 flows into the culture pond 11.

Wherein, the water inlet of check valve is located bait pond 13, and the delivery port is located and breeds pond 11, and when the check valve was opened, the first circulating water in bait pond 13 flowed into breed pond 11 through the check valve, and the water in breeds pond 11 can not flow into bait pond 13 through the check valve.

Specifically, in this embodiment, when the liquid level of the culture pond 11 is lower than the liquid level of the bait pond 13, the check valve is opened, the bait pond 13 is communicated with the culture pond 11 through the check valve, under the action of the liquid level difference, the first circulating water in the bait pond 13 flows into the culture pond 11 through the check valve until the liquid level of the culture pond 11 is flush with the liquid level of the bait pond 13, the check valve is closed, and the bait pond 13 is disconnected from the culture pond 11. The utility model discloses a through the check valve, can prevent to breed the tail water of pond 11 and flow to the bait pond 13 in through the check valve backward to prevent that the tail water from causing the pollution to bait pond 13, in order to avoid reducing the quality of water of bait pond 13.

In other embodiments, when the liquid level of the culture pond 11 drops to a predetermined liquid level, the bait pond 13 pumps the first circulating water to the culture pond 11 through a water pump, thereby achieving the purpose of replenishing the culture pond 11 with water.

Referring to FIG. 2, in some embodiments, the farming system 1 further includes a detection device (not shown) and an ecological trench 14. The detection device is used for detecting whether the water quality of the bait pond 13 meets the cultivation standard, and the ecological ditch 14 is selectively communicated with the bait pond 13 to purify the water conveyed by the bait pond 13.

Wherein, the detection equipment can be arranged at the position of the bait pond 13 close to the culture pond 11, thereby ensuring that the water of the bait pond 13 detected by the detection equipment is first circulating water. Illustratively, the bait pond 13 includes a first bait pond 131, a second bait pond 132, a third bait pond 133 and a fourth bait pond 134 which are sequentially communicated, wherein the purifying device 12 is communicated with the first bait pond 131, and the fourth bait pond 134 is selectively communicated with the culture pond 11, so that the detecting device can be arranged on the fourth bait pond 134 to ensure that the detecting device detects the first circulating water in the fourth bait pond 134.

In this embodiment, the cultivation standard is the kind and concentration of the germs, that is, the detection device comprehensively evaluates whether the first circulating water reaches the cultivation standard by detecting the kind and concentration of germs in the first circulating water.

The detection device can detect the species and concentration of the bacteria in the first circulating water through sampling, pretreatment, culture, separation and purification, identification, quantitative technology, data analysis and other steps. Specifically, the detection equipment firstly collects the water sample in the first circulating water, and comprises a surface water sample, a middle water sample and a bottom water sample, and the surface water sample, the middle water sample and the bottom water sample are respectively and independently treated through subsequent steps, so that the types and the concentrations of germs in different liquid level heights of the first circulating water can be obtained, and the accuracy of the detection result of the first circulating water is improved. After the water sample is collected, the water sample is preprocessed, and the method comprises the sub-steps of filtering, concentrating, separating and the like, so that impurities are removed, and the detection accuracy is improved. Inoculating the pretreated water sample to a culture medium, culturing at a proper temperature and under an environment to enable germs to grow and reproduce and form colonies, and observing and recording parameters such as the form, the color, the size and the like of the colonies so as to preliminarily judge the types of the colonies. After culturing, the cultured colonies were isolated and purified to obtain a single strain for further identification and analysis. After obtaining a single strain, identifying bacteria by adopting a microbiological method according to indexes such as the strain shape, dyeing characteristics, biochemical reaction and the like, thereby determining the types of bacteria in the first circulating water. After the species of the germs in the first circulating water are determined, quantitative detection is carried out on the collected water sample by adopting a counting mode comprising direct counting of a microscope, counting of a bacteria counting plate or counting of a flow cytometer, so as to determine the concentration of the germs in the first circulating water. After the types and the concentrations of the germs in the first circulating water are obtained, comprehensively evaluating whether the first circulating water reaches the cultivation standard, if the evaluation result is that the first circulating water reaches the cultivation standard, then when the bait pond 13 is communicated with the cultivation pond 11, the first circulating water is conveyed to the cultivation pond 11, so that the purpose of recycling after tail water purification is achieved, if the evaluation result is that the first circulating water does not reach the cultivation standard, then the bait pond 13 is communicated with the ecological ditch 14, and the water in the bait pond 13 is conveyed to the ecological ditch 14 and is discharged after being purified by the ecological ditch 14.

It should be noted that in this embodiment, the ecological ditch 14 is configured to be bred with trioxymicroorganisms. Wherein, the trioxygen microorganism has strong oxidizing property and reducing property, and when the water in the bait pond 13 is conveyed to the ecological ditch 14, the bacteria in the water in the bait pond 13 can be killed by the trioxygen microorganism, thereby achieving the purpose of purifying the water conveyed by the bait pond 13. The water conveyed by the bait pond 13 can be discharged into an external river after being purified by the ecological canal 14, thereby achieving the purpose of harmless discharge.

In other embodiments, the farming system 1 may also replace the ecological ditch 14 with a storage tank.

In some embodiments, the cultivation system 1 further comprises a control unit (not shown in the figure), when the detection device detects that the water quality of the bait pond 13 does not reach the cultivation standard, the control unit controls the bait pond 13 to be communicated with the ecological ditch 14, and controls the bait pond 13 to be disconnected from the cultivation pond 11 so as to convey the water of the bait pond 13 to the ecological ditch 14; when the detection equipment detects that the water quality of the bait pond 13 reaches the cultivation standard, the control unit controls the bait pond 13 to be disconnected from the ecological ditch 14 and controls the bait pond 13 to be communicated with the cultivation pond 11.

In this embodiment, the control unit controls the bait pond 13 to communicate with one of the culture pond 11 and the ecological ditch 14 according to the detection result of the detection device, that is, when the control unit controls the bait pond 13 to communicate with the culture pond 11, the control unit controls the bait pond 13 to disconnect from the ecological ditch 14, and when the control unit controls the bait pond 13 to communicate with the ecological ditch 14, the control unit controls the bait pond 13 to disconnect from the culture pond 11. In sum, the control unit can enable the bait pond 13 to be communicated with the culture pond 11 or the ecological ditch 14 for intellectualization, so that manpower is liberated.

In other embodiments, the connection and disconnection of the bait pond 13 and the culture pond 11 or the ecological ditch 14 can be realized manually.

Referring again to FIG. 2, in some embodiments, the decontamination apparatus 12 includes a primary decontamination device 121 and a secondary decontamination device 122. The first-stage purifying device 121 is communicated with the culture pond 11 and is used for extracting tail water in the pond to form a second circulating water and solid-liquid mixture through treatment, and the first-stage purifying device 121 conveys the second circulating water to the culture pond 11. The secondary purification device 122 is communicated with the primary purification device 121 and the bait pond 13, the primary purification device 121 conveys the solid-liquid mixture to the secondary purification device 122, the secondary purification device 122 processes the solid-liquid mixture to form fertilizer water, and the secondary purification device 122 conveys the fertilizer water to the bait pond 13.

Specifically, the primary purification apparatus 121 may include a primary purification device 1211 and a secondary purification device 1212. 4233333 primary purification apparatus 1211 can comprise a first liquid reservoir 1211a, a first layering assembly 1211b, an aeration assembly 1211c, and a foam separation assembly 1211d. The first liquid storage tank 1211a is communicated with the culture pond 11, the first layering component 1211b is arranged in the first liquid storage tank 1211a, the first layering component 1211b is used for carrying out solid-liquid separation treatment on tail water in the first liquid storage tank 1211a, turbid liquid and clear liquid are formed by the tail water in the first liquid storage tank 1211a, the aeration component 1211c is arranged in the first liquid storage tank 1211a, the aeration component 1211c is used for aerating the clear liquid, so that the clear liquid is layered into second circulating water and a foam layer, the foam separation component 1211d is communicated with the first liquid storage tank 1211a and extends from the first liquid storage tank 1211a to the direction of the culture pond 11, and the foam separation component 1211d is used for separating the second circulating water and the foam layer and discharging the second circulating water to the culture pond 11.

The aeration assembly 1211c aerates the clear liquid to form a plurality of bubbles in the clear liquid, so that the debris, organic protein, feces, etc. in the clear liquid, which are not separated by the first layering assembly 1211b, can adhere to the plurality of bubbles, and the plurality of bubbles carry the solid impurities to rise in the clear liquid, so that the clear liquid is layered, i.e., the lower layer forms the second circulating water, and the upper layer forms the foam layer. The foam separation assembly 1211d separates the second circulating water from the foam layer and discharges the second circulating water to the cultivation pond 11, so that the second circulating water formed after the tail water is purified by the primary purification device 1211 can be recycled, thereby being beneficial to greening and sustainable development of the cultivation industry.

The secondary purification apparatus 1212 may include a second fluid reservoir 1212a and a second hierarchical component 1212b, the second fluid reservoir 1212a being in communication with the first fluid reservoir 1211a and the bait pond 13, the second hierarchical component 1212b being disposed within the second fluid reservoir 1212 a. After the turbid liquid is conveyed from the first liquid storage tank 1211a to the second liquid storage tank 1212a, the turbid liquid is subjected to solid-liquid separation treatment by the second layer separation assembly 1212b, so that the turbid liquid forms a solid-liquid mixture and clear liquid, the clear liquid is conveyed from the second liquid storage tank 1212a to the first liquid storage tank 1211a and is mixed with the clear liquid formed by the solid-liquid separation treatment by the first layer separation assembly 1211b, so that second circulating water is formed by the treatment of the aeration assembly 1211c and the foam separation assembly 1211d and is conveyed into the culture pond 11, and the solid-liquid mixture is conveyed from the second liquid storage tank 1212a to the second-stage purification device 122.

The secondary purifying device 122 performs static precipitation treatment on the solid-liquid mixture, so that solid impurities with larger mass such as fragments and the like are precipitated on the lower layer to form solid residues, inorganic nitrogen compounds, inorganic phosphorus compounds, organic proteins and part of excrement are on the upper layer to form fertilizer water, and the secondary purifying device 122 conveys the fertilizer water to the bait pond 13.

Wherein the water quantity of the second circulating water can be about 99.5% of the water quantity of the cultivation tail water, and the water quantity of the fertilizer water can be about 0.5% of the water quantity of the cultivation tail water.

The first-stage purification device 121 and the second-stage purification device 122 are used for carrying out solid-liquid separation treatment on the culture tail water to form second circulating water with relatively large water quantity and fertilizer water with relatively small water quantity, so that the water level in the culture pond 11 can be prevented from being lowered too much in a short time, and the ecological influence on the culture pond 11 is avoided.

In other embodiments, only one stage of the purification apparatus 121 may be provided.

With continued reference to fig. 2, in some embodiments, the secondary purification device 122 includes a septic tank 1221, the septic tank 1221 being configured to process a solid-liquid mixture to form a fat water and to anaerobically process the fat water.

Wherein, the septic tank 1221 can form an anaerobic environment, and because the oxygen content in the anaerobic environment is low, at least part of germs in the solid-liquid mixture can not breathe aerobically after being input into the septic tank 1221, so that the germs can not survive and reproduce, thereby achieving the purpose of killing germs, reducing the germ content in the fertilizer water, and preventing germs from affecting the bait and aquatic products after being input into the bait pond 13.

In other embodiments, the bacteria in the solid-liquid mixture may also be killed by the trioxygen microorganisms by stocking the secondary purification device 122.

Referring to fig. 3, in a second aspect, the embodiment of the present application further discloses a cultivation method, which is applied to the cultivation system 1 described above, and includes:

step 100: the tail water of the cultivation pond 11 is transported to the purification device 12.

Step 200: the purification device 12 processes the tail water to form fat water and delivers the fat water to the bait pond 13.

Step 300: the bait pond 13 purifies the fat water into first circulating water, and conveys the first circulating water to the culture pond 11 when the bait pond 13 communicates with the culture pond 11.

In step 100, the purification device 12 may communicate with the cultivation pond 11 through a water inlet pipe, while the water inlet pipe is provided with a water pump, which pumps the cultivation water of the cultivation pond 11 to the purification device 12. It can be understood that, because the solid impurities at the bottom of the culture pond 11 are more, the water quality at the bottom of the culture pond 11 can more represent the tail water of the culture pond 11, the port of the water inlet pipe communicated with the culture pond 11 can extend into the bottom of the culture pond 11, and the water pump pumps the tail water at the bottom of the culture pond 11 to the purifying equipment 12.

In step 200, after the purification device 12 extracts the tail water, most of impurities such as chips in the tail water are removed by physical means, the water ratio is reduced, and the fertilizer water is obtained after concentration, wherein the concentration of substances such as nitrogen, phosphorus, organic proteins, and feces in the fertilizer water is high. After the tail water is treated by the purifying equipment 12 to obtain fat water, the fat water is conveyed into the bait pond 13.

In step 300, after the fertilizer water is delivered to the bait pond 13, the nitrogen and phosphorus content in the bait pond 13 can be increased in a short time to promote the growth and propagation of phytoplankton in the bait pond 13, absorb nitrogen and phosphorus in the process of mass propagation of phytoplankton, and can also reduce the nitrogen and phosphorus content in the bait pond 13 in turn, so that the quality of the fertilizer water is improved. Meanwhile, in the growth and propagation process of algae, the algae can absorb carbon dioxide in water through photosynthesis and release oxygen, so that the oxygen content of water quality in the bait pond 13 can be increased, and the water quality of fat water is further improved. The bait water in the bait pond 13 can feed on phytoplankton such as algae, so that after the phytoplankton such as algae grow and reproduce in a large quantity, the food sources of the bait aquatic products can be enriched, and the yield of the bait aquatic products can be improved. Meanwhile, the bait aquatic products can also take the excrement and the organic protein as food, so that after the fertilizer water is conveyed to the bait pond 13, the content of the excrement and the organic protein in the bait pond 13 can be increased in a short time, and after the bait aquatic products eat the excrement and the organic protein, the content of the excrement and the organic protein in the bait pond 13 can be reduced in turn, so that the quality of the fertilizer water is further improved. After the fertilizer water is conveyed to the bait pond 13, the bait pond 13 can reduce the contents of pollutants such as nitrogen, phosphorus, organic proteins and feces in the fertilizer water through phytoplankton, bait aquatic products and the like, and meanwhile, the oxygen content of the fertilizer water can be increased through the phytoplankton, so that the quality of the fertilizer water is improved, and the fertilizer water is purified into first circulating water and conveyed to the culture pond 11.

Referring to fig. 4, in some embodiments, the cultivation system 1 further includes a detection device and a control unit, and step 300 includes:

step 310: the detection equipment detects whether the water quality of the bait pond 13 meets the cultivation standard;

step 320: when the water quality of the bait pond 13 does not reach the cultivation standard, the control unit controls the bait pond 13 to be communicated with the ecological ditch 14 and controls the bait pond 13 to be disconnected from the cultivation pond 11;

step 330: when the water quality of the bait pond 13 reaches the cultivation standard, the control unit controls the bait pond 13 to be disconnected from the ecological ditch 14 and controls the bait pond 13 to be communicated with the cultivation pond 11.

When the detection equipment detects that the water quality of the bait pond 13 does not reach the cultivation standard, the detection equipment generates a first signal and sends the first signal to the control unit, and the control unit controls the bait pond 13 to be communicated with the ecological ditch 14 and controls the bait pond 13 to be disconnected with the cultivation pond 11 according to the first signal.

When the detection equipment detects that the water quality of the bait pond 13 reaches the cultivation standard, the detection equipment generates a second signal and sends the second signal to the control unit, and the control unit controls the bait pond 13 to be communicated with the cultivation pond 11 and controls the bait pond 13 to be disconnected with the ecological ditch 14 according to the second signal.

In other embodiments, the detection device detects whether the water quality of the bait pond 13 reaches the cultivation standard and then sends out a corresponding signal, and the user manually controls the bait pond 13 to be communicated with the cultivation pond 11 or the ecological ditch 14 according to the signal.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A farming system, comprising:

the cultivation pond is used for cultivating target aquatic products;

the purifying equipment is communicated with the culture pond and used for extracting tail water in the culture pond so as to treat the tail water to form fertilizer water; and

the bait pond is used for culturing bait aquatic products, and the bait aquatic products are used for feeding the target aquatic products; the bait pond is communicated with the purifying equipment, the purifying equipment conveys the fat water to the bait pond so as to purify the fat water into first circulating water, and the bait pond is selectively communicated with the culture pond.

2. A farming system according to claim 1, wherein the number of bait ponds is plural, the plurality of bait ponds being in turn in communication, the most upstream bait pond being in communication with the purifying device, the most downstream bait pond being in selective communication with the farming pond.

3. The farming system of claim 2, wherein the bait pond comprises:

a first bait pond communicated with the purifying device, wherein the purifying device conveys the fat water to the first bait pond;

a second bait pond communicated with the first bait pond;

a third bait pond communicated with the second bait pond; and

and the fourth bait pond is communicated with the third bait pond and is selectively communicated with the culture pond.

4. A farming system according to any one of claims 1-3, further comprising a one-way valve, said bait pond being in selective communication with said farming pond via a one-way valve, said one-way valve being opened when the liquid level of said farming pond is lower than the liquid level of said bait pond, to allow said first circulating water of said bait pond to flow into said farming pond.

5. A culture system according to any one of claims 1-3, wherein the culture system further comprises:

the detection equipment is used for detecting whether the water quality of the bait pond reaches the cultivation standard or not; and

an ecological ditch selectively communicating with the bait pond to purify water conveyed by the bait pond.

6. The farming system of claim 5, further comprising a control unit that controls the bait pond to communicate with the ecological ditch and controls the bait pond to disconnect from the farming pond to deliver water from the bait pond to the ecological ditch when the detection device detects that the water quality of the bait pond does not meet farming standards; when the detection equipment detects that the water quality of the bait pond reaches the cultivation standard, the control unit controls the bait pond to be disconnected from the ecological ditch and controls the bait pond to be communicated with the cultivation pond.

7. A farming system according to any one of claims 1-3, wherein the purification apparatus comprises:

the first-stage purification device is communicated with the culture pond and is used for extracting tail water of the culture pond so as to form a second circulating water and solid-liquid mixture through treatment, and the first-stage purification device conveys the second circulating water to the culture pond; and

the secondary purification device is communicated with the primary purification device and the bait pond, the primary purification device conveys the solid-liquid mixture to the secondary purification device, the secondary purification device processes the solid-liquid mixture to form fertilizer water, and the secondary purification device conveys the fertilizer water to the bait pond.

8. The farming system of claim 7, wherein the secondary purification device comprises a septic tank configured to treat the solid-liquid mixture to form the fat water and to anaerobically treat the fat water.

9. A method of farming, characterized in that it is applied to a farming system according to any one of claims 1-8, comprising:

delivering the tail water of the culture pond to the purifying equipment;

the purifying equipment is used for treating the tail water to form the fat water and conveying the fat water to the bait pond;

the bait pond purifies the fat water into the first circulating water, and the first circulating water is conveyed to the culture pond when the bait pond is communicated with the culture pond.

10. The farming method of claim 9, wherein the farming system further comprises a detection device and a control unit, the method further comprising:

the detection equipment detects whether the water quality of the bait pond reaches the cultivation standard;

when the water quality of the bait pond does not reach the cultivation standard, the control unit controls the bait pond to be communicated with the ecological ditch and controls the bait pond to be disconnected from the cultivation pond;

when the water quality of the bait pond reaches the cultivation standard, the control unit controls the bait pond to be disconnected from the ecological ditch and controls the bait pond to be communicated with the cultivation pond.