CN111109176B

CN111109176B - Three-stage water purification system for aquaculture

Info

Publication number: CN111109176B
Application number: CN201911387003.4A
Authority: CN
Inventors: 赵玉平; 王伟
Original assignee: Nanjing Hanbang Ecological Agricultural Technology Co ltd
Current assignee: Nanjing Hanbang Ecological Agricultural Technology Co ltd
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2022-04-19
Anticipated expiration: 2039-12-29
Also published as: CN111109176A

Abstract

The invention relates to the technical field of water body purification, in particular to a three-stage water purification system for aquaculture. It includes the sedimentation purification pond, the sedimentation purification pond has set gradually the biological purification layer from the top down, pasture and water purifies layer and physics and purifies the layer, the inside on biological purification layer is provided with a biological purification case at least, the biological purification case includes the case body, the base plate is installed to the bottom of case body, the case body has set gradually from the top down and has thrown the medicine district, mother liquor configuration district and biological cultivation district, the medicine pipe that advances that is linked together rather than inside is installed at the top of case body, the case body is close to biological cultivation district bottom one side and sets up the outlet rather than inside being linked together. This a tertiary water purification system for aquaculture sets up biological purification layer and carries out effectual biological purification to breeding the tail water, sets up pasture and water purification layer and carries out the plant to breeding the tail water and purify, increases the water oxygen content, sets up the physics and purifies the layer, carries out preliminary physics to breeding the tail water and purifies to effectively foster fungus.

Description

Three-stage water purification system for aquaculture

Technical Field

The invention relates to the technical field of water body purification, in particular to a three-stage water purification system for aquaculture.

Background

The aquaculture industry is that human beings utilize water areas available for cultivation (including planting), and aquatic economic animal and plant cultivation is carried out by applying aquaculture technology and facilities according to the ecological habits of cultivation objects and the requirements on the environmental conditions of the water areas, and the requirements on water quality are particularly important when the aquaculture is carried out. These all become the relatively careless problem of raiser, and current quality of water is only can reject the impurity in the water source through the quality of water purification mode, can't strengthen the nutrition in the water source, leads to after the water source purifies, still need add rich water, keeps purifying water internal content and has nutrition, high in production cost. In the process of shrimp and crab cultivation, the phenomenon of mass death caused by the factors of top shell foot-drawing, shell-falling failure and the like can be faced frequently, thereby affecting the final yield. Moreover, the breeding yield is also seriously influenced by the occurrence of white cream disease, shrivelled fruit disease, shrimp steal death disease and the like of river crabs.

Disclosure of Invention

The invention aims to provide a three-stage water purification system for aquaculture so as to solve the problems in the background technology.

In order to achieve the above objects, the present invention provides a three-stage water purification system for aquaculture, comprising a sedimentation purification tank, the sedimentation purification tank is sequentially provided with a biological purification layer, a waterweed purification layer and a physical purification layer from top to bottom, the biological purification layer is internally provided with at least one biological purification box which comprises a box body, the bottom of the box body is provided with a base plate, the box body is sequentially provided with a drug feeding area, a mother liquor configuration area and a biological culture area from top to bottom, the top of the box body is provided with a medicine inlet pipe communicated with the interior of the box body, one side of the box body, which is close to the bottom of the biological culture area, is provided with a water outlet communicated with the interior of the box body, the device comprises a water outlet, a common valve, a plurality of medicine throwing barrels and a plurality of medicine throwing tubes, wherein the common valve is used for controlling the water outlet to be opened and closed, the medicine throwing tubes are embedded in the medicine throwing area, and the medicine throwing tubes are of a vertically through structure.

Preferably, a stirring motor is installed at the top of the box body, a first stirring blade fan is coaxially installed on an output shaft of the stirring motor, and the first stirring blade fan is located at the bottom of the drug throwing cylinder.

As preferred, rivers agitator motor is installed to the one end of base plate, rivers agitator motor passes base plate coaxial arrangement and has the action wheel, the inside biological cultivation district bottom that is close to of case body is installed the second and is stirred the leaf fan, the output shaft of second stirring leaf fan passes case body and base plate coaxial arrangement in proper order and has from the driving wheel, the action wheel with from connecting through drive belt transmission between the driving wheel.

Preferably, aquatic purification plants are planted in the aquatic plant purification layer, and a volcanic rock cushion layer is paved in the physical purification layer.

Preferably, the purification steps of the three-stage water purification system for aquaculture are as follows:

s1, discharging the wastewater generated by the cultivation box body into a sedimentation purification tank through a wastewater ditch, and enabling the wastewater to flow into the biological purification box from the dosing cylinder;

s2, adding the bacteria and algae crazy from the dosing cylinder, and allowing the bacteria and algae crazy to enter the biological purification box along the dosing cylinder so as to mix the bacteria and algae crazy with the wastewater in the biological purification box;

s3, injecting EM bacteria into the biological purification box through the drug inlet pipe to purify the water;

s4, after primary purification, discharging the water source in the biological purification box from the water outlet;

s5, double purification of the water source discharged from the water outlet through the aquatic plant purification layer and the physical purification layer;

and S6, pouring the purified water source into the drainage channel through the lifting pump, and discharging the water source into the culture box body through the drainage channel.

As preferred, the outer intercommunication of drainage canal has the breed box, breed the box and be provided with a plurality of and vertical range from bottom to top, it is fixed through the mount between the box to breed, through bolt and breed box fixed connection in the upper and lower both ends of mount, one side of breeding the box is provided with the rest storehouse fixed slot, the inside a plurality of rest storehouses that can dismantle of rest storehouse fixed slot is provided with, the rest storehouse closely arranges in proper order, the middle part of breeding the box is provided with washes away the storehouse, the rest storehouse is close to the one side that washes away the storehouse and is the open mode, the one side that the rest storehouse fixed slot was kept away from to the breed box is provided with the life storehouse.

Preferably, the aquatic plant cultivation plate is arranged inside the living cabin, the landslide which inclines downwards is arranged inside the scouring cabin, the landslide is of a Z-shaped structure, the oxygen conveying pipe is vertically arranged inside the living cabin, a partition plate is arranged between the living cabin and the scouring cabin, the top of the partition plate is transversely provided with the EM (effective microorganism) bacterium release pipe, the outer wall of the EM bacterium release pipe is uniformly provided with a plurality of spraying heads, and the side wall of the partition plate is provided with a plurality of through holes; the rest storehouse includes a plurality of sealed storehouses that the below is vertical in proper order and the sunshine storehouse that the top set up, one side top slope in sunshine storehouse is provided with into light mouthful, the inboard of advancing light mouthful closely bonds and has the glass board, the inboard closely bonding in the downward both ends of glass board has the location mouth, the inboard of glass board can be dismantled and be provided with the light screen, the upper and lower both ends of light screen insert the location mouth and fix through the location mouth.

Preferably, a water inlet is formed in one end of the living bin, the water inlet is communicated with the water outlet, a water outlet is formed in the other end of the living bin, sealing plugs are arranged on the outer sides of the water inlet and the water outlet, the height of the water outlet is lower than that of the water inlet, a dirt cleaning opening is formed in the bottom of one side of the living bin, and a bin door is arranged on the dirt cleaning opening.

Preferably, the outer wall of the oxygen therapy pipe is uniformly provided with a plurality of air outlet holes.

Preferably, EM bacteria are sprayed in the drainage channel and the culture box body.

Compared with the prior art, the invention has the beneficial effects that:

1. this a tertiary water purification system for aquaculture sets up biological purification layer and carries out effectual biological purification to breeding the tail water, sets up pasture and water purification layer and carries out the plant to breeding the tail water and purify, increases the water oxygen content, sets up the physics and purifies the layer, carries out preliminary physics to breeding the tail water and purifies to effectively foster fungus.

2. The three-stage water purification system for aquaculture is added with EM bacteria, can purify water quality, improve substrate, reduce pH in intestinal tracts of fishes, shrimps and crabs, activate activity of enzymes in organisms, improve the utilization rate of feed, increase the delicate flavor of fishes, shrimps and crabs, enhance photosynthesis of plants, decompose toxins, gain rich water, improve the water source purification effect and simultaneously enhance nutrition in a water source.

3. The three-stage water purification system for aquaculture is added with the bacteria and algae crazy, can supplement trace elements of the water body, activate the activity of various environmental organisms in the water body, increase the dissolved oxygen in the water body, improve the water source purification effect and simultaneously enhance the nutrition in the water source.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the biological purification box of the present invention;

FIG. 3 is a schematic overall flow chart of the present invention;

FIG. 4 is a schematic structural view of a cultivation box according to the present invention;

FIG. 5 is a schematic structural view of a cultivation box according to the present invention;

fig. 6 is a schematic structural view of the rest bin of the present invention.

The various reference numbers in the figures mean:

1. a sedimentation purification tank; 2. a biological purification layer; 3. a float grass purification layer; 4. a physical purification layer;

5. a biological purification tank; 51. a tank body;

52. a substrate; 521. a water flow agitator motor; 522. a driving wheel; 523. a second stirring blade fan; 524. a driven wheel; 525. a transmission belt;

53. a drug delivery area; 531. a medicine throwing barrel; 532. a stirring motor; 533. a first stirring blade fan;

54. a mother liquor preparation zone; 55. a biological culture zone; 56. a medicine inlet pipe; 57. a water outlet; 58. a normal valve;

6. aquatic purification plants; 7. a volcanic rock cushion layer; 8. a breeding box body; 9. a rest bin fixing groove;

10. a rest bin; 101. sealing the bin; 102. a sunlight bin; 1021. a light inlet; 1022. a glass plate; 1023. positioning the opening; 1024. a visor;

11. a living cabin; 111. a water inlet; 112. a water outlet; 113. cleaning a sewage port; 114. aquatic plant cultivation plates;

12. flushing the bin; 121. landslide;

13. an oxygen delivery tube;

14. an EM bacteria release pipe; 141. a partition plate; 1411. a through hole;

15. a fixing frame.

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.

Referring to fig. 1-6, the present invention provides a technical solution:

the invention provides a three-level purified water system for aquaculture, which comprises a sedimentation and purification tank 1, wherein the sedimentation and purification tank 1 is sequentially provided with a biological purification layer 2, a waterweed purification layer 3 and a physical purification layer 4 from top to bottom, at least one biological purification box 5 is arranged inside the biological purification layer 2, each biological purification box 5 comprises a box body 51, and a base plate 52 is arranged at the bottom of the box body 51, so that the box body 51 is conveniently arranged on the top of the base plate 52.

In this embodiment, the box body 51 is provided with a drug feeding area 53, a mother liquor configuration area 54 and a biological culture area 55 from top to bottom in sequence, and a drug inlet pipe 56 communicated with the inside of the box body 51 is installed at the top of the box body 51, so that EM bacteria can be injected from the drug inlet pipe 56, and the addition of EM bacteria can be further realized.

Furthermore, a water outlet 57 communicated with the inside of the case body 51 is formed at one side close to the bottom of the biological culture area 55, so that the water can be conveniently discharged from the water outlet 57 after the water source is purified.

Specifically, a common valve 58 for controlling the opening and closing of the water outlet 57 is installed outside the water outlet 57, a plurality of drug feeding cylinders 531 are embedded inside the drug feeding area 53, the drug feeding cylinders 531 are in a vertically through structure, so that bacteria and algae can be fed from the drug feeding cylinders 531 conveniently, and the bacteria and algae can enter the biological purification box 5 along the drug feeding cylinders 531.

In addition, agitator motor 532 is installed at the top of case body 51, and agitator motor 532's output shaft coaxial arrangement has first stirring leaf fan 533, and first stirring leaf fan 533 is located the bottom of throwing cartridge 531, drives first stirring leaf fan 533 through agitator motor 532 and rotates, and when first stirring leaf fan 533 rotated, the liquid that drives throw cartridge 531 bottom stirred, promoted the mixing of fungus algae crazy and liquid.

Besides, a water flow stirrer motor 521 is installed at one end of the base plate 52, a driving wheel 522 is installed on the water flow stirrer motor 521 through the base plate 52 in a coaxial mode, the driving wheel 522 is driven by the water flow stirrer motor 521 to rotate, a second stirring blade fan 523 is installed inside the box body 51 close to the bottom of the biological culture area 55, stirring of liquid inside the biological culture area 55 is achieved through stirring of the second stirring blade fan 523, an output shaft of the second stirring blade fan 523 sequentially penetrates through the box body 51 and the base plate 52 in a coaxial mode, a driven wheel 524 is installed on the box body 51 in a coaxial mode, the driving wheel 522 is in transmission connection with the driven wheel 524 through a transmission belt 525, the water flow stirrer motor 521 drives the driving wheel 522 to rotate, the driving wheel 522 drives the driven wheel 524 to rotate through the transmission belt 525, and the driven wheel 524 drives the second stirring blade fan 523 to stir in the biological culture area 55.

Furthermore, aquatic purification plants 6 are planted in the aquatic plant purification layer 3, the aquatic purification plants 6 are planted in the aquatic plant purification layer 3 all the year round, the aquatic purification plants 6 comprise euphorbia depression, waterweed, eel grass, hydrilla verticillata and water spinach, the culture tail water is subjected to plant purification, and the oxygen content of the water body is increased.

Specifically, the volcanic rock cushion layer 7 is paved in the interior of the physical purification layer 4, so that the culture tail water is subjected to preliminary physical purification, and bacteria can be effectively cultured.

Still further, the purification steps of the three-stage water purification system for aquaculture are as follows:

s1, discharging the wastewater generated by the culture box body into the sedimentation and purification tank 1 through a wastewater ditch, and enabling the wastewater to flow into the biological purification box 5 from the dosing cylinder 531;

s2, adding the bacteria and algae crazy from the dosing cylinder 531, and allowing the bacteria and algae crazy to enter the biological purification box 5 along the dosing cylinder 531 so that the bacteria and algae crazy is mixed with the wastewater in the biological purification box 5;

s3, injecting EM bacteria into the biological purification box 5 through the medicine inlet pipe 56 to purify the water;

s4, after primary purification, discharging the water source in the biological purification box 5 from the water outlet 57;

s5, double purification of the water source discharged from the water discharge port 57 through the aquatic weed purification layer 3 and the physical purification layer 4;

Wherein, the EM bacteria have the following functions:

1) purifying water quality:

can effectively reduce the indexes of pollutants such as COD, ammonia nitrogen, total phosphorus, total nitrogen, hydrogen sulfide and the like in the water body and increase the content of dissolved oxygen in the water body. After the water body is used, the water body is fresh and cool, the surface of the water body is floodlight and transparent, bubbles disappear, and the water body is not rotten and smelly.

2) Improving the substrate:

effectively decompose organic matters such as underwater residual bait, excrement, biological debris and the like, reduce sediment deposition, increase the content of dissolved oxygen in the water, stabilize and improve the water quality and prolong the water changing time.

3) Improving the intestinal function:

the EM bacteria mixed with the bait can reduce the pH value in the intestinal tracts of fishes, shrimps and crabs, inhibit the reproduction of pathogenic bacteria and improve the intestinal environment. Microbial metabolites such as enzymes in the EM are beneficial to improving the digestibility of the feed and the immunity of fishes, shrimps and crabs, and can promote the growth and reduce the incidence rate of diseases.

4) Activation of enzyme activity in the body:

the high-quality EM bacteria can generate enzymes and microbial metabolites in the fermentation process, and can organize trace elements in the bacteria liquid, and the organic trace elements in the bacteria liquid can excite the activity of enzymes in bodies of fish, shrimp and crab when the EM bacteria are mixed with bait for feeding, so that the anti-stress capability of the bodies is enhanced, and the healthy growth of the fish, shrimp and crab is facilitated.

5) The utilization rate of the feed is improved:

the EM bacteria are added into the feed, so that the feed attraction of the feed can be improved, the waste of the feed is reduced, and even if the feed is excessively fed, the residual feed is not easy to damage water and bottom, thereby being beneficial to the ecological stability of the culture water area.

6) The delicate flavor of fish, shrimp and crab is increased:

the metabolites and microbial proteins of the EM are rich in nutrition and easy to digest and absorb, the meat quality and the taste of the fishes, shrimps and crabs can be improved by feeding the feed containing the EM, the delicate flavor can be comparable to that of the fresh iced fishes, and the market competitiveness of aquatic products for cultivation can be improved.

7) Enhancing photosynthesis of plants:

the trace elements are important components of plant photosynthesis enzyme, and the absorption rate of organic trace elements is hundreds times that of inorganic salt, so that the physiological function of plant can be obviously regulated. After the EM bacteria are used in the culture water area, the chlorophyll content of the aquatic weeds is increased, the leaves are dark green, more oxygen can be released in the sunlight, and the improvement of the self-purification capability of the aquatic weeds on the water body and the culture water environment can be favorably improved.

8) Detoxification function:

the EM bacteria can generate a large amount of organic acid in the fermentation process, the pH value is about 3.5, and the organic acid can react with or chelate heavy metals, so that the toxicity of the heavy metals is reduced. The EM bacteria can also decompose residual pesticides on agricultural products such as vegetables, melons and fruits by spraying, so that the safety of the agricultural products is improved.

9) Synergist of fertilizer and water products:

the EM bacteria can decompose protein into amino acid and small peptide, so that the amino acid and small peptide can be easily absorbed by aquatic weeds and algae, and meanwhile, the organic trace elements in the bacteria liquid have the functions of grass cultivation and grass protection and can also promote the growth of the algae, so that the aim of fertilizing water is fulfilled. The EM bacteria and the water fertilizing paste are mixed for use, or the soybean meal or the rapeseed meal fermented by the EM bacteria is used for fertilizing water, so that the effect better than that of a water fertilizing product singly can be obtained.

10) The deodorization function is as follows:

the EM bacteria contain a large amount of probiotics, and metabolites of the EM bacteria can inhibit the propagation of putrefying bacteria, so that the deodorization effect is achieved.

Wherein, the use effect of the EM bacteria is as follows:

1) reduce the content of harmful substances in the water body.

2) Purifying the water quality.

3) Promoting animal growth, and improving immunity and disease resistance.

4) Improve survival rate and reduce death rate.

5) Raising the breeding density.

6) Preventing epidemic diseases, and reducing the use of antibiotics.

In addition, the use method of the EM bacteria:

1) water quality pretreatment, in order to enable microorganisms to settle in a water body earlier, water surface splashing (mainly a ditch) is carried out by using EM-aquatic product water purification special bacteria liquid about 7-10 days before young seedlings are put in a breeding place, and the splashing amount depends on the water body and the water area. (EM-aquatic product water purification special-purpose bacterial liquid 1Kg corresponds to 1-3 mu of water surface, and is used with EM rich water.)

2) Pretreating feed, namely spraying and stirring dry feed by using 200 times of diluent, and keeping the water content at about 30-40%; for animal baits, EM bacterial liquid can be directly used for spraying or diluting for 100 times of soaking treatment, and feeding is carried out after 2-3 hours;

3) and (4) water quality maintenance, wherein after the normal culture stage is carried out, in order to provide a good ecological environment for aquatic animals, the water surface is splashed by 1-3 mu of water surface per kilogram of water surface for about 2 times per month in each pond according to the water quality condition.

It is worth to say that the bacteria, algae and crazy component comprises compound bacteria 1 x 10⁷Biological peptide, trace elements and potassium fulvate.

The algae crazy can supplement carbon source, trace elements such as silicon, manganese, copper, iron, zinc, sulfur, magnesium, germanium, molybdenum, chitosan, sericite, corallite, borax, selenium and other trace elements and inorganic salts in water, so that beneficial algae can grow rapidly, roots and stems of aquatic weeds are promoted to develop, the aquatic weeds are tender green, organic matters and toxic and harmful substances such as hydrogen sulfide, ammonia nitrogen, nitrite, heavy metals and the like in the water and bottom sludge are decomposed, and a large amount of nutrients such as protein and the like are generated and absorbed by the aquatic weeds.

Furthermore, the microbial differentiation process in the bacteria, algae and crazy is carried out for 5-7 days once, and the bacteria, algae and crazy are killed after living for 15-20 days through three differentiation processes, so that 50% of high-quality protein, 10% of inorganic substances and 30% of vitamins are formed, 8 amino acids are contained, particularly nucleic acid and polysome are contained, a large amount of nutrient substances are provided for a water body, and the water body can be effectively fertilized for 21 days.

The effects of the bacteria and algae crazy are as follows:

1) supplementing trace elements to the water body, providing an algae nutrient source and maintaining the balance of bacteria and algae in the water body; the fertilizer water is quickly fertilized to provide natural bait amino acid, nucleic acid, polysaccharide and growth-promoting factors for aquatic animals, improve the quality of cultured products and increase both production and income; can inhibit decomposition of moss, can make the roots and stems of the float hard, and can fertilize water for 24 hours under the conditions of temperature, illumination and the like.

2) The activity of various environmental organisms in the water body is activated, the material circulation of a pond ecosystem is accelerated, the decomposition and conversion of metabolic wastes of cultured animals into nutritive salts are promoted, the growth of harmful microorganisms is inhibited, and the contents of ammonia nitrogen, hydrogen sulfide, nitrite and heavy metal in water and at the bottom are reduced. Can effectively improve the poor water quality of black water, foul water, blue algae water, muddy water, red water, oil film water and the like.

3) The dissolved oxygen in the water body is increased, the pH value is stabilized, the bacterial phase and algae balance of the water body are stabilized, the oxygen deficiency of the aquatic animals is effectively relieved, and the aquatic animals grow healthily and rapidly. No residue, full utilization of all nutrient elements by algae in the surface water layer, no formation of precipitate, and no introduction of pathogenic bacteria.

The methods of use are shown in the following table:

method for using fungus and algae

It is worth noting that the water temperature is below 15 ℃, the bacteria and algae are used after being soaked in water for 12 hours, and the water temperature above 15 ℃ can be directly added with water and stirred uniformly for use; the interval of the disinfection area is 5-7 days or the bacteria and algae are used after detoxification.

As shown in fig. 4-6, the outside of the drainage channel is communicated with a breeding box body 8, the breeding box body 8 is provided with a plurality of breeding boxes which are vertically arranged from bottom to top, the breeding boxes 8 are fixed by a fixing frame 15 to facilitate the installation and fixation between each breeding box body 8, one side of each breeding box body 8 is provided with a rest bin fixing groove 9, a plurality of rest bins 10 are detachably arranged in the rest bin fixing groove 9 and are used for the rest or the exuviation of crabs and can be taken out conveniently for cleaning, the rest bins 10 are sequentially and closely arranged, the middle part of each breeding box body 8 is provided with a scouring bin 12 for realizing the movement of water from top to bottom and ensuring the fluidity of the water, one side of each rest bin 10 close to the scouring bin 12 is in an open state to ensure the communication between the rest bins 10 and the scouring bins 12, one side of each breeding box body 8, far away from the rest bin fixing groove 9, is provided with a living bin 11 for the activities of crabs or foraging, the inside of the living cabin 11 is provided with a pasture and water cultivation board 114 for planting pasture and water which is far away from the resting cabin and can avoid crabs being hung by the pasture and water when the crabs exuviate, the inside of the scouring cabin 12 is provided with a downward inclined slide slope 121 for conveniently flushing the inside of the cultivation box body 8, the inside of the living cabin 11 is vertically provided with an oxygen conveying pipe 13 for conveying oxygen, a clapboard 141 is arranged between the living cabin 11 and the scouring cabin 12, the top of the clapboard 141 is transversely provided with an EM (effective microorganism) releasing pipe 14, the outer wall of the EM releasing pipe 14 is uniformly provided with a plurality of spraying heads for spraying EM (effective microorganism) downwards, the EM is a composite flora which mainly comprises a plurality of floras, each microorganism plays an important role respectively, the core role is that photosynthetic bacteria and lactobacillus acidophilus are dominant, the synthesis capability of the microorganism supports the activity of other microorganisms, and substances generated by other microorganisms are utilized to form a symbiotic relationship, the EM-OUNA microbial inoculum, trace elements, an exuviating agent, organic acid and vitamin C are mixed, water is added according to the proportion of 1:1 to dissolve the paste, then more than 120 times of water is added to dilute the paste evenly and sprinkle the whole pool, the treatment effect of the whole pool can be achieved, the soft shell diseases, the exuviation failure, the stress reaction, the poor appetite, the white shrimps, the giant freshwater shrimps and other diseases of shellfish aquaculture animals such as the shrimps and the crabs are reduced, the vitality of the shellfish aquaculture animals is enhanced, the shelling and the growth are promoted, and the side wall of the partition plate 141 is provided with a plurality of through holes 1411.

In this embodiment, rest storehouse 10 includes a plurality of sealed warehouses 101 and the sunshine storehouse 102 of top setting of below vertical setting in proper order, a use for providing illumination, one side top slope in sunshine storehouse 102 is provided with light inlet 1021, light inlet 1021's inboard closely bonds and has glass board 1022, glass board 1022's the inboard closely bonding in both ends downwards has location mouth 1023, glass board 1022's inboard can be dismantled and be provided with light screen 1024, the upper and lower both ends of light screen 1024 insert location mouth 1023 and fixed through location mouth 1023, light screen 1024 can install additional or dismantle as required, realize the regulation of light inlet quantity.

Specifically, the upper end and the lower end of the fixing frame 15 are fixedly connected with the cultivation box body 8 through bolts, and the fixing frame is convenient to install and disassemble.

In addition, a water inlet 111 is formed in one end of the living bin 11, a water outlet 112 is formed in the other end of the living bin 11, and sealing plugs are arranged on the outer sides of the water inlet 111 and the water outlet 112, so that water adding and water discharging are facilitated.

Further, the height of the water outlet 112 is lower than that of the water inlet 111, so that the water can be conveniently supplied in a circulating manner.

Further, one side bottom of living storehouse 11 is provided with the mouth of decontaminating 113, is provided with the door on the mouth of decontaminating 113, conveniently clears up dirt.

Furthermore, the landslide 121 is of a Z-shaped structure, so that water and EM bacteria liquid can flow from top to bottom conveniently, and the whole culture box body 8 is uniformly sprayed.

Furthermore, a plurality of air outlets are uniformly formed in the outer wall of the oxygen conveying pipe 13, so that oxygen can be uniformly introduced into the breeding box body 8.

When the shrimp and crab culturing device is used, firstly, the culturing box bodies 8 are sequentially and vertically fixed through the fixing frames 15, after the fixing is completed, a certain amount of moisture is injected into the living bin 11, then EM (effective microorganisms) solution is sprayed into the scouring bin 12 through the EM (effective microorganisms) release pipe 14, the EM solution slides down along with a landslide from top to bottom and uniformly enters the culturing box bodies 8, then the living bin 11 is filled with moisture, water flows into the scouring bin 12 through the through hole 1411, the water flows from top to bottom in the scouring bin 12, the EM solution is scoured and mixed, the uniformity of liquid medicine in the culturing box bodies 8 is guaranteed, when shrimps and crabs have a rest or molt, each shrimp and crab can be separated through the independent rest bins 10, mutual pushing or biting is avoided, the shrimps and crabs can conveniently rest or molt, and the rest bins 10 are taken out regularly to be cleaned.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A tertiary purified water system for aquaculture, including settling purification pond (1), its characterized in that: the sedimentation purification tank (1) has set gradually biological purification layer (2), pasture and water purification layer (3) and physics purification layer (4) from the top down, the inside that biological purification layer (2) was provided with one biological purification case (5) at least, biological purification case (5) are including case body (51), base plate (52) are installed to the bottom of case body (51), case body (51) has set gradually from the top down and has thrown medicine district (53), mother liquor configuration district (54) and biological culture district (55), it advances pencil (56) rather than inside being linked together to install the top of case body (51), case body (51) are close to biological culture district (55) bottom one side and are seted up outlet (57) rather than inside being linked together, the externally mounted of outlet (57) has ordinary valve (58) that are used for controlling outlet (57) switch, a plurality of medicine throwing barrels (531) are embedded in the medicine throwing area (53), and the medicine throwing barrels (531) are of a vertically through structure; a stirring motor (532) is installed at the top of the box body (51), a first stirring blade fan (533) is coaxially installed on an output shaft of the stirring motor (532), and the first stirring blade fan (533) is located at the bottom of the medicine throwing box (531); a water flow stirrer motor (521) is mounted at one end of the base plate (52), the water flow stirrer motor (521) penetrates through the base plate (52) and is coaxially provided with a driving wheel (522), a second stirring blade fan (523) is mounted in the tank body (51) close to the bottom of the biological culture area (55), an output shaft of the second stirring blade fan (523) sequentially penetrates through the tank body (51) and the base plate (52) and is coaxially provided with a driven wheel (524), and the driving wheel (522) is in transmission connection with the driven wheel (524) through a transmission belt (525); aquatic purification plants (6) are planted in the aquatic plant purification layer (3), and a volcanic rock cushion layer (7) is laid in the physical purification layer (4); the purification steps are as follows:

s6, pouring the purified water source into a drainage channel through a lifting pump, and discharging the water source into the culture box body through the drainage channel; the drainage channel is communicated with a culture box body (8), the culture box body (8) is provided with a plurality of culture boxes which are vertically arranged from bottom to top, the culture boxes (8) are fixed through a fixing frame (15), the upper end and the lower end of the fixing frame (15) are fixedly connected with the culture box body (8) through bolts, one side of the culture box body (8) is provided with a rest bin fixing groove (9), a plurality of rest bins (10) are detachably arranged in the rest bin fixing groove (9), the rest bins (10) are sequentially and tightly arranged, the middle part of the culture box body (8) is provided with a scouring bin (12), one side of the rest bins (10) close to the scouring bin (12) is in an open state, and one side of the culture box body (8) far away from the rest bin fixing groove (9) is provided with a living bin (11); the aquatic weed cultivation plate (114) is arranged inside the living bin (11), a slope (121) which inclines downwards is arranged inside the scouring bin (12), the slope (121) is of a Z-shaped structure, the oxygen conveying pipe (13) is vertically arranged inside the living bin (11), a partition plate (141) is arranged between the living bin (11) and the scouring bin (12), the top of the partition plate (141) is transversely provided with an EM (effective microorganism) releasing pipe (14), the outer wall of the EM (14) is uniformly provided with a plurality of spraying heads, and the side wall of the partition plate (141) is provided with a plurality of through holes (1411); the rest bin (10) comprises a plurality of sealing bins (101) which are vertically arranged below in sequence and a sunlight bin (102) which is arranged above, a light inlet (1021) is obliquely arranged at the top of one side of the sunlight bin (102), a glass plate (1022) is tightly bonded on the inner side of the light inlet (1021), a positioning port (1023) is tightly bonded on the inner side of the downward two ends of the glass plate (1022), a light screen (1024) is detachably arranged on the inner side of the glass plate (1022), and the upper end and the lower end of the light screen (1024) are inserted into the positioning port (1023) and fixed through the positioning port (1023); a water inlet (111) is formed in one end of the living bin (11), the water inlet (111) is communicated with the water outlet (57), a water outlet (112) is formed in the other end of the living bin (11), sealing plugs are arranged on the outer sides of the water inlet (111) and the water outlet (112), the height of the water outlet (112) is lower than that of the water inlet (111), a dirt cleaning opening (113) is formed in the bottom of one side of the living bin (11), and a bin door is arranged on the dirt cleaning opening (113); a plurality of air outlet holes are uniformly formed in the outer wall of the oxygen conveying pipe (13); EM bacteria are sprayed in the drainage channel and the culture box body (8); the use method of the EM bacteria comprises the following steps:

1) water quality pretreatment, wherein in order to enable microorganisms to settle in a water body earlier, water surface splashing is carried out by using EM-aquatic product water purification type bacteria liquid 7-10 days before young seedlings are put in a breeding place, and the splashing amount is determined according to the water body and the water volume area;

2) pretreating feed, namely spraying and stirring dry feed by using 200 times of diluent, and keeping the water content at 30-40%; for animal baits, EM bacterial liquid can be directly used for spraying or diluting for 100 times of soaking treatment, and feeding is carried out after 2-3 hours;

3) maintaining water quality, namely after entering a normal culture stage, carrying out splashing on the water surface of 1-3 mu per kilogram of water surface for each pond 2 times per month according to the water quality condition in order to provide a good ecological environment for aquatic animals;

it is worth to be noted that the bacteria, algae and crazy component comprises compound bacteria, biological peptide, trace elements and potassium fulvate;

the algae crazy can supplement carbon source and trace elements such as silicon, manganese, copper, iron, zinc, sulfur, magnesium, germanium, molybdenum, chitosan, sericite, corallite, borax, selenium and inorganic salt in water body, so that beneficial algae can grow rapidly, simultaneously promote the development of roots and stems of aquatic weeds, and the aquatic weeds are tender green, and simultaneously decompose organic matters and toxic and harmful substances such as hydrogen sulfide, ammonia nitrogen, nitrite and heavy metal in the water body and bottom sludge to generate a large amount of protein nutrient substances which are absorbed by the aquatic weeds.