CN114766422A - Using method of automatic circulating water supply system for penaeus vannamei boone cultivation - Google Patents
Using method of automatic circulating water supply system for penaeus vannamei boone cultivation Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 275
- 241000238553 Litopenaeus vannamei Species 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 66
- 238000001556 precipitation Methods 0.000 claims abstract description 57
- 238000000746 purification Methods 0.000 claims abstract description 50
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- 238000001179 sorption measurement Methods 0.000 claims abstract description 32
- 238000005189 flocculation Methods 0.000 claims abstract description 29
- 230000016615 flocculation Effects 0.000 claims abstract description 29
- 238000009360 aquaculture Methods 0.000 claims abstract description 20
- 244000144974 aquaculture Species 0.000 claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 238000012258 culturing Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 10
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- 244000005700 microbiome Species 0.000 claims abstract description 7
- 244000052616 bacterial pathogen Species 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 46
- 239000002689 soil Substances 0.000 claims description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 239000004568 cement Substances 0.000 claims description 22
- 241000238557 Decapoda Species 0.000 claims description 18
- 239000013535 sea water Substances 0.000 claims description 16
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 7
- 229940037003 alum Drugs 0.000 claims description 7
- 239000007844 bleaching agent Substances 0.000 claims description 7
- 239000000460 chlorine Substances 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 7
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- 241001465754 Metazoa Species 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 6
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- 238000005086 pumping Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
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- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 claims description 3
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- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000006213 oxygenation reaction Methods 0.000 claims description 3
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention relates to the technical field of a using method of an automatic circulating water supply system for penaeus vannamei boone cultivation, which sequentially comprises the following steps: the first filtering unit is used for filtering impurities in the exogenous water; adsorbing particle suspended matters in the exogenous water through an adsorption precipitation unit; harmful microorganisms and pathogenic bacteria in the exogenous water are killed by the disinfection unit; culturing the penaeus vannamei through a culturing unit; separating impurities in the culture water through a separation unit; carrying out adsorption precipitation on suspended particles in the culture water through a flocculation precipitation unit; the second filtering unit is used for filtering large impurities in the aquaculture water; the ecological purification unit is used for culturing large emergent aquatic plants, ornamental fishes and shellfishes, and the culture water is discharged into the disinfection unit again when the water purification degree of the ecological purification unit meets the culture requirement. The invention has the advantages that the standard of the culture water is achieved by treating the culture tail water, the effect of recycling water resources is achieved, and the discharge of the culture tail water is reduced.
Description
Technical Field
The invention relates to the technical field of penaeus vannamei boone cultivation, in particular to a use method of an automatic circulating water supply system for penaeus vannamei boone cultivation.
Background
The penaeus vannamei boone plays an important role in the domestic aquaculture market, and the penaeus vannamei boone culture also brings some problems along with the continuous expansion of the culture area and scale in recent years, such as: environmental pollution, water waste, etc. The traditional culture modes are various and comprise high-level pond culture, soil pond culture, small shed culture, industrial culture and the like. However, the treatment of the culture tail water is not noticed in the culture modes, and the culture tail water is usually directly discharged into the natural environment to destroy the local natural environment. Some farmers can even directly discharge ponds with diseases into the natural environment, which not only damages the natural environment, but also spreads aquatic diseases, thus causing greater loss to the economy. The culture of the penaeus vannamei needs a large amount of water change to improve the culture environment, which causes a large amount of water resource waste, which does not meet the requirement of sustainable development of modern agriculture.
Disclosure of Invention
The invention aims to solve the technical problem of improper treatment of culture water for the culture of the penaeus vannamei boone, and provides a use method of an automatic circulating water supply system for the culture of the penaeus vannamei boone, which has the advantages that the treatment of culture tail water reaches the standard of culture water, the effect of recycling water resources is achieved, and the discharge of the culture tail water is reduced.
For the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
a method for using an automatic circulating water supply system for penaeus vannamei boone cultivation is disclosed, wherein the circulating water supply system comprises a first filtering unit, an adsorption precipitation unit, a disinfection unit, a cultivation unit, a separation unit, a flocculation precipitation unit, a second filtering unit and an ecological purification unit which are sequentially communicated from water inlet to water outlet; the using method sequentially comprises the following steps:
s1, filtering the exogenous water: pumping the external source water into the first filtering unit through a water pump; the first filtering unit is used for filtering large impurities in the exogenous water; enabling the filtered exogenous water to flow into an adsorption precipitation unit;
s2, adsorbing and precipitating exogenous water: adsorbing particle suspended matters in the exogenous water through an adsorption precipitation unit; the foreign water after adsorption and precipitation flows into a disinfection unit;
s3, sterilizing exogenous water: harmful microorganisms and pathogenic bacteria in the exogenous water are killed by the disinfection unit; making the disinfected exogenous water flow into a culture unit;
s4, culturing the penaeus vannamei: culturing the penaeus vannamei through the culturing unit, and enabling culturing wastewater after culturing to flow into the separation unit;
s5, separating aquaculture water: separating excrement, shrimp shells, residual baits and dead shrimps in the culture water by a separation unit; enabling the separated culture water to flow into a flocculation precipitation unit;
s6, flocculating and settling culture water: carrying out adsorption precipitation on suspended particles in the culture water through a flocculation precipitation unit; and the culture water after flocculation and precipitation flows into a second filtering unit;
s7, filtering the culture water: the second filtering unit is used for filtering large impurities in the aquaculture water; and the filtered exogenous water flows into an ecological purification unit;
s8, ecological purification of aquaculture water: the ecological purification unit is used for culturing large emergent aquatic plants, ornamental fishes and shellfishes and absorbing and utilizing excessive nutrient substances in the culture water;
s9, circulating culture water: when the water body purification degree of the ecological purification unit reaches the culture requirement, the culture water is discharged into the disinfection unit again for a new circulation. The using method of the automatic circulating water supply system can treat the culture tail water to reach the standard of the culture water, achieve the effect of recycling water resources and reduce the discharge of the culture tail water.
Preferably, the first filtering unit and the second filtering unit are both cement filtering dams; paving sand with the height of 0.3m at the bottom of the cement filtering dam, and paving a layer of stones with the height of 0.8m on the sand; foreign water is pumped into the cement filtering dam through the water pump, large impurities in water are filtered out by the stones flowing through the upper part at first, small impurities are filtered out by sand flowing to the lower part, and the filtered foreign water directly flows into the adsorption and precipitation unit through an opening at the bottom of the cement filtering dam.
Preferably, the adsorption and precipitation unit is a soil pond, and an impermeable membrane is paved on the surface of the soil pond; the bottom of the soil pond is provided with activated carbon arranged at intervals; the external source water flowing in from the first filtering unit enters the soil pond, and can be introduced into the next stage for disinfection after at least 24 hours, and alum is added into the soil pond every 5 hours; the dosage of each time is about 0.5 percent of the total amount of the water body, and after being dissolved in water, AL is added3+Hydrolyzing to generate adsorptive AL (OH)3And a large amount of active carbon is paved at the bottom of the seawater pool for absorbing residual chlorine, heavy metals and organic matters in the seawater. The adsorption and precipitation unit is used for adsorbing impurities in the culture water.
Preferably, the disinfection unit is communicated with a first detection pool; the first detection pool is used for detecting whether the disinfected exogenous water reaches the standard or not; a first valve used for communicating the first detection pool and the disinfection unit is arranged between the first detection pool and the disinfection unit. The foreign source water entering the culture unit is convenient to detect through the first detection pool, and the foreign source water is discharged into the culture unit after being detected to be qualified, so that the culture condition can be met.
Preferably, the disinfection unit is a soil pond, and an impermeable membrane is paved on the surface of the soil pond; a waterwheel type aerator for aeration and oxygenation of seawater is arranged on the surface of the soil pond; the method comprises the steps of pumping the adsorbed and precipitated exogenous water into a disinfection unit through a water pump, sprinkling bleaching powder at a water inlet of the disinfection unit, disinfecting according to the use amount of 100 g of bleaching powder per cubic sea water, aerating for at least 24 hours through a waterwheel type aerator to accelerate removal of residual chlorine in a water body, keeping sufficient dissolved oxygen in the water body, detecting the qualified exogenous water through a first detection pool, and flowing into a culture unit. The sterilizing unit is convenient for consuming the culture water, and the penaeus vannamei boone can be cultured.
Preferably, the culture unit comprises at least one culture pond, and a second valve for controlling the exogenous water is arranged between each culture pond and the disinfection unit; detecting the external source water reaching the standard by the first detection pool, and opening a second valve to enable the external source water to enter the culture pool; the cultivation pond is a rectangular soil pond, a plastic greenhouse is built, a cement column is arranged in the center of the cultivation pond, a pipe orifice is arranged on the cultivation pond, a PC pipe higher than the water surface of the cultivation pond is inserted into the pipe orifice, and a water outlet end of the cultivation pond is provided with a water outlet used for discharging into the separation unit. The penaeus vannamei boone can be bred through the breeding unit.
Preferably, the separation unit is a stacked spiral shell dehydrator, breeding water is directly fed into the stacked spiral shell dehydrator after being discharged through the breeding unit, residual bait excrement, shrimp shells and dead shrimps in tail water are removed through the operation of the stacked spiral shell dehydrator, the effect of primarily filtering the breeding water is achieved, and then the filtered breeding water is discharged into the flocculation precipitation unit. The spiral-wound water extractor is convenient for removing residual bait excrement, shrimp shells and dead shrimps.
Preferably, the flocculation precipitation unit is a soil pond, and an impermeable membrane is paved on the surface of the soil pond; and spraying alum for flocculation precipitation in the soil pond for not less than 24 hours. The flocculation precipitation unit is convenient for the flocculation precipitation operation of the culture water.
Preferably, the ecological purification unit is communicated with a second detection pool; the second detection pool is used for detecting whether the water body in the ecological purification unit reaches the standard or not; a third valve used for communicating the second detection tank and the ecological purification unit is arranged between the second detection tank and the ecological purification unit. The aquaculture water of the ecological purification unit can be conveniently detected through the second detection tank.
Preferably, the ecological purification unit comprises four soil pond pools, wherein large submerged plants and aquatic animals are planted on the four soil pond pools respectively, the culture water purified for one week by the ecological purification unit enters a second detection pool, the culture water in the second detection pool is detected, and after the detection reaches a circulation standard, the culture water enters the disinfection unit through the drain pipe and enters the culture system again to complete one-round circulation. Different plants and aquatic animals can be cultivated through the ecological purification unit, and water circulation is realized.
In conclusion, the invention has the advantages that the standard of the culture water is achieved by treating the culture tail water, the effect of recycling water resources is achieved, and the discharge of the culture tail water is reduced.
Drawings
Fig. 1 is a circulation schematic diagram of the using method of the automatic circulating water supply system for penaeus vannamei boone breeding.
Fig. 2 is a schematic structural diagram of the automatic circulating water supply system for penaeus vannamei boone breeding.
Wherein: 1-a first filtration unit; 2-an adsorption precipitation unit; 3-a disinfection unit; 31-a first detection cell; 32-a first valve; 33-a second valve; 4-a culture unit; 5-a separation unit; 6-a flocculation precipitation unit; 7-a second filtration unit; 8-an ecological purification unit; 81-a second detection cell; 82-third valve.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1 and fig. 2, a method for using an automatic circulating water supply system for penaeus vannamei boone cultivation, the circulating water supply system comprises a first filtering unit 1, an adsorption precipitation unit 2, a disinfection unit 3, a cultivation unit 4, a separation unit 5, a flocculation precipitation unit 6, a second filtering unit 7 and an ecological purification unit 8 which are sequentially communicated in the water inlet direction and the water outlet direction; the using method of the circulating water supply system sequentially comprises the following steps:
s1, filtering exogenous water: pumping the external source water into the first filtering unit 1 through a water pump; the first filtering unit 1 is used for filtering large impurities in the exogenous water; the filtered exogenous water flows into an adsorption precipitation unit 2;
s2, adsorbing and precipitating exogenous water: adsorbing particle suspended matters in the external water through an adsorption precipitation unit 2; the adsorbed and precipitated exogenous water flows into a disinfection unit 3;
s3, sterilizing exogenous water: harmful microorganisms and pathogenic bacteria in the exogenous water are killed by the disinfection unit 3; the sterilized exogenous water flows into the culture unit 4;
s4, culturing penaeus vannamei: the penaeus vannamei boone is cultured by the culture unit 4, and the culture wastewater after culture flows into the separation unit 5;
s5, separating aquaculture water: separating excrement, shrimp shells, residual baits and dead shrimps in the culture water by a separation unit 5; and the separated aquaculture water flows into a flocculation precipitation unit 6;
s6, flocculating and settling culture water: carrying out adsorption precipitation on the particle suspended matters in the culture water through a flocculation precipitation unit 6; and the culture water after the flocculation and precipitation flows into a second filtering unit 7;
s7, filtering the culture water: the second filtering unit 7 is used for filtering large impurities in the culture water; and the filtered exogenous water flows into the ecological purification unit 8;
s8, ecological purification of aquaculture water: the ecological purification unit 8 is used for culturing large emergent aquatic plants, ornamental fishes and shellfishes and absorbing and utilizing excessive nutrient substances in the culture water;
s9, circulating culture water: when the water body purification degree of the ecological purification unit 8 meets the culture requirement, the culture water is discharged into the disinfection unit 3 again for a new circulation. The use method of the automatic circulating water supply system can treat the culture tail water to reach the standard of culture water, achieve the effect of recycling water resources and reduce the discharge of the culture tail water.
The first filtering unit 1 and the second filtering unit 7 are both cement filtering dams; the length of the cement filtering dam is 4 meters, the width of the cement filtering dam is 1 meter, the height of the cement filtering dam is 2 meters, and the occupied area of the cement filtering dam is 4 meters2. Paving sand with the height of 0.3m at the bottom of the cement filtering dam, and paving a layer of stones with the height of 0.8m on the sand; foreign water is pumped into the cement filtering dam through the water pump, large impurities in water are filtered out by the stones flowing through the upper part at first, then smaller impurities are filtered out by the sands flowing to the lower part, and the filtered foreign water directly flows into the adsorption precipitation unit 2 through an opening at the bottom of the cement filtering dam.
The adsorption and precipitation unit 2 is a pond, and an impermeable membrane is laid on the surface of the pond; the area of the adsorption and precipitation unit 2 is not less than that of the culture pond10 percent of the total area, the length-width ratio of 1:1 and the minimum construction area not less than 100m2The depth was 2 m. The bottom of the soil pond is provided with activated carbon arranged at intervals; the activated carbon is arranged in a straight shape, the distance between each row is about 0.2m, and the number of the activated carbon blocks in each row is set according to the ratio of the width (m) of the tank body to the number ratio (1:9) of the activated carbon blocks. Example (c): if the width of the bottom of the tank is 10m, the number of the activated carbon blocks in each row is 90. The volume of each activated carbon block is 100mm x 100 mm. The external source water flowing in from the first filtering unit 1 enters the soil pond of the adsorption and precipitation unit 2, and can be introduced into the next stage for disinfection after at least 24 hours, and alum is added into the soil pond every 5 hours; the dosage of each time is about 0.5 percent of the total amount of the water body, and after being dissolved in water, AL is added3+Hydrolysis to form adsorbed AL (OH)3The activated carbon has adsorbability, achieves the aim of purifying water, and lays a large amount of activated carbon at the bottom for absorbing residual chlorine, heavy metals, organic matters and the like in seawater, thereby ensuring the cleanliness of the water. The adsorption precipitation unit 2 is used for adsorbing impurities in the culture water.
The disinfection unit 3 is a soil pond, and an impermeable membrane is laid on the surface of the soil pond; the length-width ratio of the disinfection unit 3 is 1:1, the depth is 2m, and the minimum construction area is 100m2Generally not less than 10% of the total area of the culture pond. A waterwheel type aerator for aeration and oxygenation of seawater is arranged on the surface of the soil pond; the foreign water after adsorption and precipitation is pumped into the disinfection unit 3 through a water pump, bleaching powder is splashed at a water inlet of the disinfection unit 3, the main component of the bleaching powder is calcium hypochlorite, and the hypochlorous acid has strong oxidizing property and can effectively kill harmful microorganisms in the water body. The water body is sterilized according to the dosage of 100 g of bleaching powder per cubic sea water, the removal of residual chlorine in the water body is accelerated for at least 24 hours by aeration of a waterwheel type aerator, the dissolved oxygen in the water body is kept sufficient, and the foreign water reaching the standard detected by the first detection pool 31 flows into the culture unit 4. The sterilizing unit 3 is convenient for consuming the culture water, and the penaeus vannamei boone can be cultured.
The disinfection unit 3 is communicated with a first detection pool 31; the first detection pool 31 is a cement pool, the length-width ratio of the cement pool is 1:1, the depth is 2m, and the construction area is 1m2Left and right. First detection pool31 is used for detecting whether the disinfected exogenous water reaches the standard; a first valve 32 is arranged between the first detection cell 31 and the disinfection unit 3 for communicating the two. The foreign water after the disinfection is finished in the disinfection tank enters the first detection tank 31 through the first valve 32, a worker can collect a water sample through the first detection tank 31, water body indexes are detected, indexes such as residual chlorine, ammonia nitrogen, nitrite and PH value in the water body are evaluated, whether the disinfected seawater can be used for prawn culture or not is judged, the seawater is discharged into the culture unit 4 after the seawater is detected to be qualified, and the culture condition can be met.
The culture unit 4 comprises two culture ponds, and a second valve 33 for controlling the exogenous water is arranged between each culture pond and the disinfection unit 3; the foreign water reaching the standard is detected by the first detection pool 31, and enters the culture pool by opening the second valve 33; the length-width ratio of the culture unit 4 is 3:1, the depth is 1m, and the construction area is 200m2Left and right. The culture pond is a rectangular soil pond, a plastic greenhouse is built, a cement column is arranged in the center of the culture pond, a pipe orifice is arranged on the culture pond, a PC pipe higher than the water surface of the culture pond is inserted into the pipe orifice, and a water outlet end of the culture pond is provided with a water outlet used for discharging into the separation unit 5. The penaeus vannamei boone can be bred through the breeding unit 4.
The separation unit 5 is a spiral shell stacking dehydrator which firstly concentrates sewage, when the spiral pushing shaft rotates, multiple fixed and movable lamination sheets on the periphery of the pushing shaft move relatively, water is filtered out from the lamination sheet gaps which move relatively, and rapid concentration is achieved. And then, the concentrated sludge moves forwards through the spiral shaft, the screw pitch of the spiral shaft is gradually reduced along the outlet direction of the sludge cake, and the volume of the spiral cavity is continuously shrunk. Under the effect of exit back pressure board, inside pressure increases, and under the continuous promotion of spiral promotion axle, the moisture in the mud is discharged by the extrusion, and the filter cake solid content constantly risees, finally realizes the continuous separation of mud. After the aquaculture water is discharged through the aquaculture unit 4, the aquaculture water directly enters the screw-overlapping dehydrator, the residual bait excrement, the shrimp shells, the dead shrimps and the like in the tail water are removed through the work of the screw-overlapping dehydrator, the effect of primarily filtering the aquaculture water is achieved, and then the filtered aquaculture water is discharged into the flocculation precipitation unit 6. The spiral-wound water extractor is convenient for removing residual bait excrement, shrimp shells and dead shrimps.
The flocculation precipitation unit 6 is a soil pond, and an impermeable membrane is laid on the surface of the soil pond; the length-width ratio of the soil pond is 2:1, the depth is 2m, and the minimum area for constructing the soil pond is 100m2. The alum for flocculation and precipitation is splashed in the soil pond, the using amount of the alum is 0.5 percent of the total water amount (can be adjusted according to the water quality condition), and the precipitation time is not less than 24 hours. By using AL (OH)3The colloid has strong adsorption capacity, and can precipitate suspended particles in water to purify water. The purified culture tail water passes through a filtering dam and then enters an ecological purification tank. The flocculation precipitation unit 6 is convenient for the flocculation precipitation operation of the culture water.
The ecological purification unit 8 is communicated with a second detection pool 81; the second detection tank 81 is used for detecting whether the water body in the ecological purification unit 8 reaches the standard; a third valve 82 for communicating the second detection tank 81 and the ecological purification unit 8 is provided therebetween. The culture water of the ecological purification unit 8 is conveniently detected by the second detection tank 81.
The ecological purification unit 8 comprises four soil pond pools, the length-width ratio of each soil pond pool is 2:1, and the area of each soil pond pool is not less than 400m2. Large submerged plants and aquatic animals are respectively planted on the four soil ponds, the culture water after flocculation and sedimentation is discharged into the ecological purification unit 8, the eutrophication degree of the water body is reduced through the biological action, and the cultured culture water has high eutrophication degree and contains a large amount of organic matters and microorganisms. The excess organic matters are absorbed and utilized by submerged plants and cultured animals, so that the eutrophication degree of the water body is reduced, the cultured culture water contains a large amount of microorganisms, wherein harmful bacteria such as vibrios are not lacked, the species in the water body system are increased by increasing the species of the cultured organisms in the ecological purification tank, the competition among the species is increased, the ecological level of the harmful bacteria in the tail water is reduced, and the living conditions of the harmful bacteria are destroyed. In addition, harmful bacteria capable of proliferating in large quantities in the culture pond enter the ecological purification pond, and the abundance of the harmful bacteria can be reduced due to environmental stress caused by severe change of the water body environment. The aquaculture water purified by the ecological purification unit 8 for about one week enters a second detection tank 81And the culture water in the second detection pool 81 is detected, and after the detection reaches the circulation standard, the culture water enters the disinfection unit 3 through the drain pipe and enters the culture system again to complete one cycle of circulation. Different plants and aquatic animals can be cultivated through the ecological purification unit 8, and water circulation is realized.
The circulation process comprises the following steps: the seawater is pumped into a cement filtering dam by using a large water suction pump to be filtered for the first time, large impurities are filtered, then the water directly flows into an adsorption sedimentation tank, and the water is filtered for the second time by the adsorption effect of activated carbon, so that suspended impurities in the water body are removed. And then discharging the seawater into a disinfection pond for disinfection detection, and allowing the seawater reaching the culture standard to enter the culture pond through a valve between the disinfection pond and the culture pond for culture. And then, enabling the culture tail water to flow through a spiral shell overlapping dehydrator to remove impurities such as residual bait, excrement, dead shrimps and the like, then discharging the culture tail water into a flocculation sedimentation tank, purifying the water quality by adding a flocculating agent, discharging the purified water into an ecological purification tank, achieving thorough purification of the water body in an ecological purification mode, finally discharging the purified water into a disinfection tank, and reentering the culture flow to complete the recycling of the seawater.
In conclusion, the invention has the advantages that the treatment of the culture tail water reaches the standard of the culture water, the water resource is recycled, and the discharge of the culture tail water is reduced.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (10)
1. The using method of the automatic circulating water supply system for penaeus vannamei boone cultivation is characterized in that the circulating water supply system comprises a first filtering unit (1), an adsorption precipitation unit (2), a disinfection unit (3), a cultivation unit (4), a separation unit (5), a flocculation precipitation unit (6), a second filtering unit (7) and an ecological purification unit (8) which are sequentially communicated from the water inlet direction to the water outlet direction; the using method sequentially comprises the following steps:
s1, filtering exogenous water: pumping the exogenous water into the first filtering unit (1) by a water pump; the first filtering unit (1) is used for filtering large impurities in the exogenous water; the filtered exogenous water flows into an adsorption precipitation unit (2);
s2, adsorbing and precipitating exogenous water: adsorbing particle suspended matters in the external water through an adsorption precipitation unit (2); the foreign water after adsorption and precipitation flows into a disinfection unit (3);
s3, sterilizing exogenous water: harmful microorganisms and pathogenic bacteria in the exogenous water are killed by the disinfection unit (3); the sterilized exogenous water flows into the culture unit (4);
s4, culturing the penaeus vannamei: the penaeus vannamei boone is cultivated through the cultivating unit (4), and the cultivated cultivating wastewater flows into the separating unit (5);
s5, separating aquaculture water: excrement, shrimp shells, residual baits and dead shrimps in the culture water are separated by a separation unit (5); and the separated aquaculture water flows into a flocculation precipitation unit (6);
s6, flocculating and precipitating culture water: the particle suspended substances in the culture water are subjected to adsorption precipitation through a flocculation precipitation unit (6); and the culture water after flocculation and precipitation flows into a second filtering unit (7);
s7, filtering the culture water: the second filtering unit (7) is used for filtering large impurities in the aquaculture water; and the filtered exogenous water flows into an ecological purification unit (8);
s8, ecological purification of aquaculture water: the ecological purification unit (8) is used for absorbing and utilizing excessive nutrient substances in the aquaculture water;
s9, circulating culture water: when the water body purification degree of the ecological purification unit (8) meets the culture requirement, the culture water is discharged into the disinfection unit (3) again for a new circulation.
2. The use method of the automatic circulating water supply system for the penaeus vannamei boone cultivation according to the claim 1, wherein the first filtering unit (1) and the second filtering unit (7) are both cement filtering dams; paving sand with the height of 0.3m at the bottom of the cement filtering dam, and paving a layer of stones with the height of 0.8m on the sand; foreign water is pumped into the cement filtering dam through the water pump, large impurities in water are filtered out by the stones flowing through the upper part at first, small impurities are filtered out by the sands flowing to the lower part, and the filtered foreign water directly flows into the adsorption precipitation unit (2) through an opening at the bottom of the cement filtering dam.
3. The use method of the penaeus vannamei boone cultivation automatic circulating water supply system is characterized in that the adsorption and precipitation unit (2) is an earth pond, and an impermeable film is laid on the surface of the earth pond; the bottom of the soil pond is provided with activated carbon arranged at intervals; the exogenous water flowing in from the first filtering unit (1) enters a pond, and can be introduced into the next stage for disinfection after at least 24 hours, and alum is added into the pond every 5 hours; the dosage of each time is 0.5% of the total amount of the water body, and after being dissolved in water, AL is added3+Hydrolysis to form adsorbed AL (OH)3And the active carbon laid at the bottom is used for absorbing residual chlorine, heavy metals and organic matters in the seawater.
4. The use method of the automatic circulating water supply system for the penaeus vannamei boone cultivation according to the claim 1, characterized in that a first detection pool (31) is communicated with the disinfection unit (3); the first detection pool (31) is used for detecting whether the disinfected exogenous water reaches the standard or not; a first valve (32) for communicating the first detection pool (31) and the disinfection unit (3) is arranged between the first detection pool and the disinfection unit.
5. The use method of the penaeus vannamei boone cultivation automatic circulating water supply system according to the claim 4, characterized in that the disinfection unit (3) is a pond, and an impermeable membrane is laid on the surface of the pond; a waterwheel type aerator for aeration and oxygenation of seawater is arranged on the surface of the soil pond; the adsorption and precipitation of the exogenous water is pumped into the disinfection unit (3) through a water pump, bleaching powder is splashed at a water inlet of the disinfection unit (3), disinfection is carried out according to the use amount of 100 g of bleaching powder per cubic sea, removal of residual chlorine in the water body is accelerated for at least 24 hours through aeration of a waterwheel type aerator, the dissolved oxygen in the water body is kept sufficient, the exogenous water up to the standard is detected through the first detection pool (31), and the exogenous water flows into the culture unit (4).
6. The use method of the automatic circulating water supply system for the culture of the penaeus vannamei boone according to the claim 5, characterized in that the culture unit (4) comprises at least one culture pond, and a second valve (33) for controlling the exogenous water is arranged between each culture pond and the disinfection unit (3); the foreign water reaching the standard is detected by the first detection pool (31), and the foreign water enters the culture pool by opening the second valve (33); the cultivation pond is a rectangular soil pond, a plastic greenhouse is built, a cement column is arranged in the center of the cultivation pond, a pipe orifice is arranged on the cultivation pond, a PC pipe higher than the water surface of the cultivation pond is inserted into the pipe orifice, and a water outlet end of the cultivation pond is provided with a water outlet used for discharging into the separation unit (5).
7. The use method of the automatic circulating water supply system for penaeus vannamei boone cultivation according to the claim 1, wherein the separation unit (5) is a screw-stacking dehydrator, the cultivation water is discharged through the cultivation unit (4) and directly enters the screw-stacking dehydrator, residual bait, excrement, shrimp shells, dead shrimps and the like in tail water are removed through the operation of the screw-stacking dehydrator, so that the effect of primarily filtering the cultivation water is achieved, and then the filtered cultivation water is discharged into the flocculation precipitation unit (6).
8. The use method of the penaeus vannamei boone cultivation automatic circulating water supply system is characterized in that the flocculation precipitation unit (6) is an earth pond, and an impermeable film is laid on the surface of the earth pond; and spraying alum for flocculation precipitation in the soil pond for not less than 24 hours.
9. The use method of the automatic circulating water supply system for the penaeus vannamei boone cultivation according to the claim 1, wherein a second detection pool (81) is communicated with the ecological purification unit (8); the second detection pool (81) is used for detecting whether the water body in the ecological purification unit (8) reaches the standard or not; a third valve (82) used for communicating the second detection tank (81) and the ecological purification unit (8) is arranged between the second detection tank and the ecological purification unit.
10. The use method of the automatic circulating water supply system for the penaeus vannamei boone cultivation according to the claim 9, wherein the ecological purification unit (8) comprises four soil ponds, large submerged plants and aquatic animals are planted on the four soil ponds respectively, the cultivation water purified for one week by the ecological purification unit (8) enters the second detection pond (81), the cultivation water in the second detection pond (81) is detected, and after the detection reaches a circulation standard, the cultivation water enters the disinfection unit (3) through the drain pipe and enters the cultivation system again to complete one cycle of circulation.
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