CN112075488A - Deep purification method for improving safety of shellfish food - Google Patents
Deep purification method for improving safety of shellfish food Download PDFInfo
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- CN112075488A CN112075488A CN202010971979.2A CN202010971979A CN112075488A CN 112075488 A CN112075488 A CN 112075488A CN 202010971979 A CN202010971979 A CN 202010971979A CN 112075488 A CN112075488 A CN 112075488A
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- 235000015170 shellfish Nutrition 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000000746 purification Methods 0.000 title claims abstract description 23
- 235000013305 food Nutrition 0.000 title claims abstract description 18
- 239000013535 sea water Substances 0.000 claims abstract description 126
- 238000004140 cleaning Methods 0.000 claims abstract description 55
- 239000004576 sand Substances 0.000 claims abstract description 31
- 238000005406 washing Methods 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 8
- 238000012258 culturing Methods 0.000 claims abstract description 6
- 230000001954 sterilising effect Effects 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 238000004659 sterilization and disinfection Methods 0.000 claims description 9
- 230000004083 survival effect Effects 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000009395 breeding Methods 0.000 claims description 3
- 230000001488 breeding effect Effects 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims description 3
- 244000000010 microbial pathogen Species 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 2
- 241000237852 Mollusca Species 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001654 germ layer Anatomy 0.000 description 1
- 230000002710 gonadal effect Effects 0.000 description 1
- 210000003716 mesoderm Anatomy 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000009278 visceral effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C29/00—Processing shellfish or bivalves, e.g. oysters, lobsters; Devices therefor, e.g. claw locks, claw crushers, grading devices; Processing lines
- A22C29/04—Processing bivalves, e.g. oysters
- A22C29/043—Cleaning operations on bivalves, e.g. evisceration, brushing, separation of meat and shell material
-
- 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
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C29/00—Processing shellfish or bivalves, e.g. oysters, lobsters; Devices therefor, e.g. claw locks, claw crushers, grading devices; Processing lines
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Food Science & Technology (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a deep purification method for improving shellfish food safety, which comprises the following steps: s1) purifying seawater: removing impurities in the seawater, and sterilizing the seawater to improve the quality of the seawater; s2: temporarily culturing the shellfish: putting the shellfish into a temporary culture pond, and temporarily culturing and purifying by using purified seawater; meanwhile, the temporarily cultured seawater is purified in step S1; s3 seawater cleaning: cleaning shellfish with common seawater to remove impurities such as silt and fine sand on shellfish; the cleaned seawater is subjected to purification treatment in step S1; according to the invention, seawater is firstly purified, then the shellfish is temporarily raised by using the purified seawater, and finally the brush roll is used for cleaning, spray cleaning, high-pressure washing and ultrasonic washing, so that impurities and fine sand on the shellfish can be effectively removed, and the cleaning quality of the shellfish can be greatly improved; and the wastewater and seawater generated in the cleaning process are subjected to secondary purification treatment and are recycled, so that the environmental protection property of the whole treatment process can be greatly improved.
Description
Technical Field
The invention relates to the technical field of shellfish food cleaning, in particular to a deep purification method for improving shellfish food safety.
Background
Shellfish, a class of molluscs. Is an animal with three germ layers, symmetrical two sides and a true body cavity. The true body cavity of a mollusk is the body cavity formed by the fissure method, i.e., the mesoderm. However, the true body cavities of mollusks are underdeveloped and are found only in the pericardial and gonadal cavities. Molluscs vary widely in morphology, but can be structurally divided into head, foot, visceral sac and mantle 4 portions.
Due to the growth environment of the shellfish in the sea, fishing and sorting after landing, the shell is filled with silt and mortar, the interior of the shell also contains silt due to different growth environments, the shellfish is not suitable for being directly eaten under sanitary conditions, and the shellfish can be safely eaten only after being cleaned and purified outside the shell. The existing shellfish cleaning method is directly and simply cleaned by utilizing cleaning equipment and then sent to the market. The cleaning mode is simple, the cleaning work efficiency is high, the cleaning can be carried out quickly, the cleaning quality is poor, the sand content of the shellfish food is high, purchasers need to carry out repeated cleaning before eating the shellfish food to eat the shellfish food, and a great deal of inconvenience and potential safety hazards are brought to the purchasers.
Disclosure of Invention
The invention aims to provide a deep purification method for improving the safety of shellfish food, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a deep purification method for improving the safety of shellfish food comprises the following steps;
s1) purifying seawater: removing impurities in the seawater, and sterilizing the seawater to improve the quality of the seawater; wherein, step S1 includes the following steps:
s1-1) seawater precipitation: lifting the seawater from the seawater well to a sedimentation tank by a stainless steel submersible pump for natural sedimentation, or injecting the used seawater into the sedimentation tank again for natural sedimentation, and performing primary filtration by a sand filter after sedimentation to remove suspended matters in the seawater; the sand of the sand filter is divided into a fine sand particle layer and a coarse sand particle layer, and the fine sand particle layer is arranged below the coarse sand particle layer;
s1-2) sea water fine filtration: pumping the primarily filtered seawater into a fine filtering tank through a stainless steel water pump, and filtering the seawater layer by layer in the fine filtering tank sequentially through a carbon fiber layer, a fruit core activated carbon layer, a ore layer, a magnetization layer, an activated carbon layer, a medical stone layer, a talc layer and a carbon fiber layer to further remove impurities in the seawater;
s1-3) seawater disinfection: the seawater after the fine filtration is injected into a disinfection tank, and is sequentially disinfected by ultraviolet lamp irradiation and injected with ozone, and the ozone is used for disinfection, so that pathogenic microorganisms in the seawater can be effectively removed, and the safety of the seawater for temporarily breeding the shellfish can be ensured;
s1-4) adjusting the temperature of the seawater: adjusting the temperature of the seawater to prevent the temperature of the seawater from being too high or too low, and improving the temporary culture survival rate of the shellfish;
s1-5) adjusting the salinity of the seawater: the salinity of the seawater is adjusted, the over-high or over-low salinity of the seawater is prevented, and the temporary culture survival rate of the shellfish can be further improved;
s1-6) seawater aeration treatment: the seawater is aerated, so that the oxygen content of the seawater is improved, and the temporary culture survival rate of the shellfish can be further improved;
s2) temporary shellfish culture: putting the shellfish into a temporary culture pond, and temporarily culturing and purifying by using purified seawater; meanwhile, the purification treatment of the step S1 is carried out on the temporarily cultured seawater, so that the recycling of the seawater can be improved, and the environmental protection property of the whole treatment process can be greatly improved;
s3) washing with seawater: cleaning shellfish with common seawater to remove impurities such as silt and fine sand on shellfish; the cleaned seawater is purified in the step S1, so that the recycling of the seawater can be improved, and the environmental protection of the whole treatment process can be greatly improved; step S3 includes the following steps:
s3-1) brush roll cleaning: the shellfish to be cleaned is placed on the brush roll, the shellfish can roll on the brush roll continuously due to the rotation of the brush roll, and gradually moves from the first brush roll to the last brush roll in the continuous rolling process, and the shellfish shell is primarily removed by the process like brushing the shell of the shellfish with a hairbrush;
s3-2) spray cleaning: when the shellfish rolls on the brush roll, the unpurified seawater is sprayed by the spray head on the rolling brush for auxiliary cleaning, so that the shellfish can be cleaned preliminarily;
s3-3) bubble cleaning: primarily cleaning the shellfish, putting the shellfish on a bubble cleaning machine, and injecting seawater into the bubble cleaning machine to further clean the shellfish;
s3-4) high-pressure washing: the shellfish cleaned by the bubble cleaning machine is placed on a conveyor belt, seawater is sprayed on the shellfish on the conveyor belt by using a high-pressure spraying device, and the shellfish is washed, so that the shellfish cleaning quality is further improved;
s3-5) ultrasonic washing: the shellfish cleaned under high pressure is placed in a cleaning pool and immersed in seawater, and then is cleaned by vibration by sound waves with frequency higher than 20000 Hz, so that the shellfish can be cleaned deeply, fine sand wrapped in the deep part of the shellfish can be effectively removed, and the cleaning quality of the shellfish can be further improved.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, seawater is firstly purified, then the shellfish is temporarily raised by using the purified seawater, and finally the shellfish is cleaned layer by using the brush roll cleaning, spray cleaning, high-pressure washing and ultrasonic washing, so that impurities and fine sand on the shellfish can be effectively removed, and the shellfish cleaning quality can be greatly improved; and the wastewater and seawater generated in the cleaning process are subjected to secondary purification treatment and are recycled, so that the utilization rate of the seawater is favorably improved, the seawater consumption is favorably reduced, and the environmental protection property of the whole treatment process can be greatly improved.
Drawings
FIG. 1 is a schematic view of the purification steps of a deep purification method for improving the safety of shellfish food;
FIG. 2 is a schematic diagram of a specific step of the purification step S1 of the deep purification method for improving the safety of shellfish food;
fig. 3 is a schematic diagram of a specific step of the purification step S3 of the deep purification method for improving the safety of shellfish food.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
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. 1-3, a deep purification method for improving the safety of shellfish food comprises the following steps;
s1) purifying seawater: removing impurities in the seawater, and sterilizing the seawater to improve the quality of the seawater;
wherein, step S1 includes the following steps:
s1-1) seawater precipitation: lifting the seawater from the seawater well to a sedimentation tank by a stainless steel submersible pump for natural sedimentation, or injecting the used seawater into the sedimentation tank again for natural sedimentation, and performing primary filtration by a sand filter after sedimentation to remove suspended matters in the seawater; the sand of the sand filter is divided into a fine sand particle layer and a coarse sand particle layer, and the fine sand particle layer is arranged below the coarse sand particle layer; s1-2) sea water fine filtration: pumping the primarily filtered seawater into a fine filtering tank through a stainless steel water pump, and filtering the seawater layer by layer in the fine filtering tank sequentially through a carbon fiber layer, a fruit core activated carbon layer, a ore layer, a magnetization layer, an activated carbon layer, a medical stone layer, a talc layer and a carbon fiber layer to further remove impurities in the seawater; s1-3) seawater disinfection: the seawater after the fine filtration is injected into a disinfection tank, and is sequentially disinfected by ultraviolet lamp irradiation and injected with ozone, and the ozone is used for disinfection, so that pathogenic microorganisms in the seawater can be effectively removed, and the safety of the seawater for temporarily breeding the shellfish can be ensured; s1-4) adjusting the temperature of the seawater: adjusting the temperature of the seawater to prevent the temperature of the seawater from being too high or too low, and improving the temporary culture survival rate of the shellfish; s1-5) adjusting the salinity of the seawater: the salinity of the seawater is adjusted, the over-high or over-low salinity of the seawater is prevented, and the temporary culture survival rate of the shellfish can be further improved; s1-6) seawater aeration treatment: the seawater is aerated, so that the oxygen content of the seawater is improved, and the temporary culture survival rate of the shellfish can be further improved;
s2) temporary shellfish culture: putting the shellfish into a temporary culture pond, and temporarily culturing and purifying by using purified seawater; meanwhile, the purification treatment of the step S1 is carried out on the temporarily cultured seawater, so that the recycling of the seawater can be improved, and the environmental protection property of the whole treatment process can be greatly improved;
s3) washing with seawater: cleaning shellfish with common seawater to remove impurities such as silt and fine sand on shellfish; the cleaned seawater is purified in the step S1, so that the recycling of the seawater can be improved, and the environmental protection of the whole treatment process can be greatly improved;
wherein, step S3 includes the following steps:
s3-1) brush roll cleaning: the shellfish to be cleaned is placed on the brush roll, the shellfish can roll on the brush roll continuously due to the rotation of the brush roll, and gradually moves from the first brush roll to the last brush roll in the continuous rolling process, and the shellfish shell is primarily removed by the process like brushing the shell of the shellfish with a hairbrush; s3-2) spray cleaning: when the shellfish rolls on the brush roll, the unpurified seawater is sprayed by the spray head on the rolling brush for auxiliary cleaning, so that the shellfish can be cleaned preliminarily; s3-3) bubble cleaning: primarily cleaning the shellfish, putting the shellfish on a bubble cleaning machine, and injecting seawater into the bubble cleaning machine to further clean the shellfish; s3-4) high-pressure washing: the shellfish cleaned by the bubble cleaning machine is placed on a conveyor belt, seawater is sprayed on the shellfish on the conveyor belt by using a high-pressure spraying device, and the shellfish is washed, so that the shellfish cleaning quality is further improved; s3-5) ultrasonic washing: the shellfish cleaned under high pressure is placed in a cleaning pool and immersed in seawater, and then is cleaned by vibration by sound waves with frequency higher than 20000 Hz, so that the shellfish can be cleaned deeply, fine sand wrapped in the deep part of the shellfish can be effectively removed, and the cleaning quality of the shellfish can be further improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A deep purification method for improving the safety of shellfish food is characterized by comprising the following steps: s1) purifying seawater: removing impurities in the seawater, and sterilizing the seawater to improve the quality of the seawater; s2: temporarily culturing the shellfish: putting the shellfish into a temporary culture pond, and temporarily culturing and purifying by using purified seawater; meanwhile, the temporarily cultured seawater is purified in step S1; s3 seawater cleaning: cleaning the shellfish by using common seawater to remove silt and fine sand on the shellfish; the cleaned seawater is subjected to the purification process of step S1.
2. The deep purification method for improving shellfish food safety of claim 1, wherein the step S1 comprises the following steps:
s1-1) seawater precipitation: lifting the seawater from the seawater well to a sedimentation tank by a stainless steel submersible pump for natural sedimentation, or injecting the used seawater into the sedimentation tank again for natural sedimentation, and performing primary filtration by a sand filter after sedimentation to remove suspended matters in the seawater; the sand of the sand filter is divided into a fine sand particle layer and a coarse sand particle layer, and the fine sand particle layer is arranged below the coarse sand particle layer;
s1-2) sea water fine filtration: pumping the primarily filtered seawater into a fine filtering tank through a stainless steel water pump, and filtering the seawater layer by layer in the fine filtering tank sequentially through a carbon fiber layer, a fruit core activated carbon layer, a ore layer, a magnetization layer, an activated carbon layer, a medical stone layer, a talc layer and a carbon fiber layer to further remove impurities in the seawater;
s1-3) seawater disinfection: the seawater after the fine filtration is injected into a disinfection tank, and is sequentially disinfected by ultraviolet lamp irradiation and injected with ozone, and the ozone is used for disinfection, so that pathogenic microorganisms in the seawater can be effectively removed, and the safety of the seawater for temporarily breeding the shellfish can be ensured;
s1-4) adjusting the temperature of the seawater: adjusting the temperature of the seawater to prevent the temperature of the seawater from being too high or too low, and improving the temporary culture survival rate of the shellfish;
s1-5) adjusting the salinity of the seawater: the salinity of the seawater is adjusted, the over-high or over-low salinity of the seawater is prevented, and the temporary culture survival rate of the shellfish can be further improved;
s1-6) seawater aeration treatment: the seawater is aerated to improve the oxygen content of the seawater, and the temporary culture survival rate of the shellfish can be further improved.
3. The deep purification method for improving shellfish food safety of claim 1, wherein the step S3 comprises the following steps:
s3-1) brush roll cleaning: the shellfish to be cleaned is placed on the brush roll, the shellfish can roll on the brush roll continuously due to the rotation of the brush roll, and gradually moves from the first brush roll to the last brush roll in the continuous rolling process, and the shellfish shell is primarily removed by the process like brushing the shell of the shellfish with a hairbrush;
s3-2) spray cleaning: when the shellfish rolls on the brush roll, the unpurified seawater is sprayed by the spray head on the rolling brush for auxiliary cleaning, so that the shellfish can be cleaned preliminarily;
s3-3) bubble cleaning: primarily cleaning the shellfish, putting the shellfish on a bubble cleaning machine, and injecting seawater into the bubble cleaning machine to further clean the shellfish;
s3-4) high-pressure washing: the shellfish cleaned by the bubble cleaning machine is placed on a conveyor belt, seawater is sprayed on the shellfish on the conveyor belt by using a high-pressure spraying device, and the shellfish is washed, so that the shellfish cleaning quality is further improved;
s3-5) ultrasonic washing: the shellfish cleaned under high pressure is placed in a cleaning pool and immersed in seawater, and then is cleaned by vibration with sound waves, so that the shellfish can be cleaned deeply, fine sand wrapped in the deep part of the shellfish can be effectively removed, and the cleaning quality of the shellfish can be further improved.
4. The deep purification method for improving shellfish food safety as recited in claim 3, wherein the sound wave used in the ultrasonic washing is a sound wave with a frequency higher than 20000 Hz.
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