CN111573990A - Method for treating circulating water system of aquatic high-density farm - Google Patents
Method for treating circulating water system of aquatic high-density farm Download PDFInfo
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- CN111573990A CN111573990A CN202010490835.5A CN202010490835A CN111573990A CN 111573990 A CN111573990 A CN 111573990A CN 202010490835 A CN202010490835 A CN 202010490835A CN 111573990 A CN111573990 A CN 111573990A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 238000000034 method Methods 0.000 title claims abstract description 30
- 241000251468 Actinopterygii Species 0.000 claims abstract description 46
- 238000001914 filtration Methods 0.000 claims abstract description 44
- 238000007599 discharging Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 238000001556 precipitation Methods 0.000 claims abstract description 15
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 238000004062 sedimentation Methods 0.000 claims description 44
- 230000001954 sterilising effect Effects 0.000 claims description 17
- 230000001376 precipitating effect Effects 0.000 claims description 14
- 238000004659 sterilization and disinfection Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 239000008213 purified water Substances 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 210000003608 fece Anatomy 0.000 abstract description 14
- 239000010871 livestock manure Substances 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 6
- 238000009360 aquaculture Methods 0.000 description 4
- 244000144974 aquaculture Species 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- 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
- C02F3/00—Biological 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Abstract
The invention relates to the technical field of cultivation, and discloses a method for treating a circulating water system of an aquatic high-density farm, which comprises the following steps of firstly carrying out solid-liquid separation, pumping water in a fish culture area through a water pump, discharging the water into a solid-liquid separator, and separating water from excrement generated by fish; then, primary precipitation and primary filtration are carried out, the separated residual bait and excrement are discharged into a precipitation tank and are fermented by matching of a stirrer, and meanwhile, the separated water is primarily filtered; the invention has the advantages that the water in the fishpond is purified to reduce the incidence of fish school, meanwhile, the fish manure and the residual bait can be processed to improve the income of fishermen, the separated residual bait and the fish manure are squeezed into blocks and reasonably utilized, so that the income of fishermen is increased, meanwhile, the residual bait and the fish manure in the water after solid-liquid separation can be thoroughly filtered through the step-by-step purification of the water, and the condition that the fish school is sick due to bacteria carried in the residual bait and the fish manure is avoided.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a method for treating a circulating water system of an aquatic high-density farm.
Background
Along with the continuous improvement of the living standard of people, the demand of fish meat is also increased, and in addition, the improvement of the living conditions in rural areas and the development of the mechanization of agricultural production, therefore, the fish is not only a mode of previous pond culture, but also a mode of high-density aquaculture farms is popular at present, but has certain problems, because the water in the high-density aquaculture farm is dead water, after food is fed, food remains and fishes can produce excrement, if the food and the excrement cannot be cleaned out in time, the probability of diseases of fish schools can be increased, although the prior device for removing the fish feces exists, the prior device is too easy to pick up the leakage, can not purify water although the fish feces can be clearly removed, and can not primarily process the removed fish feces, therefore, the aquatic product high-density farm circulating water system treatment method is provided for improving economic benefits by preparing the aquatic product high-density farm circulating water system into fertilizer.
Disclosure of Invention
The invention aims to provide a method for treating a circulating water system of an aquatic high-density farm, which has the advantages of purifying water in a fishpond to reduce the incidence of fish school and processing fish manure and residual bait to improve fisherman income, and solves the problem that the existing device cannot purify water and cannot primarily process residual bait and fish manure for transportation.
In order to achieve the purpose, the invention provides the following technical scheme: a treatment method for a circulating water system of an aquatic high-density farm comprises the following steps:
the first step is as follows: solid-liquid separation, namely pumping water in the fish culture area through a water pump and discharging the water into a solid-liquid separator to separate water and excrement generated by the fish;
the second step is that: primary precipitation and primary filtration, wherein the separated residual bait and excrement are discharged into a precipitation tank and are fermented by matching of a stirrer, and meanwhile, the separated water is subjected to primary filtration;
the third step: secondary sedimentation and secondary filtration, namely, the residual bait and the excrement after sedimentation fall into a secondary sedimentation tank by the principle of height drop to be sedimented by a stirrer, and simultaneously, the water after primary sterilization is filtered again;
the fourth step: squeezing and evolving, wherein the pump body discharges residues precipitated in the secondary sedimentation tank into a sludge squeezer for squeezing, and meanwhile, the filtered water is purified;
the fifth step: precipitating, namely precipitating the purified water so as to fish out suspended matters in the water;
and a sixth step: and (4) discharging, namely monitoring the water quality after precipitation, opening a valve after the water quality reaches a standard, discharging part of the water into a reservoir, sterilizing the water for use at a later stage when required, and directly discharging the sterilized water into the fishpond.
Preferably, in the second step, the settling time of the residual bait and the excrement after solid-liquid separation is not less than 3 hours, and the biological filtering brush is used for primary filtering of the residual bait and the excrement in the water in the primary filtering.
Preferably, in the third step, the secondary sedimentation tank contains an ozone aeration device, and the secondary filter tank filters residual baits and feces through biological balls.
Preferably, in the fourth step, the water is purified by the plant to remove chemical substances such as nitrogen and phosphorus.
Preferably, in the sixth step, sterilization is performed by ultraviolet rays before the water is drained.
Compared with the prior art, the invention has the following beneficial effects:
the invention has the advantages that the water in the fishpond is purified to reduce the incidence of fish school, meanwhile, the fish manure and the residual bait can be processed to improve the income of fishermen, the separated residual bait and the fish manure are squeezed into blocks to be reasonably utilized, so that the income of fishermen is increased, meanwhile, the residual bait and the fish manure in the water after solid-liquid separation can be thoroughly filtered through the step-by-step purification of the water, so that the condition that the fish school is ill due to bacteria carried in the residual bait and the fish manure is avoided, the economic benefit of the fishermen is improved, and the labor amount in the aquaculture process of the fishermen is reduced.
Drawings
FIG. 1 is a flow chart of the present invention.
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, a method for treating a circulating water system of an aquatic high-density farm includes the following steps:
the first step is as follows: solid-liquid separation, namely pumping water in the fish culture area through a water pump and discharging the water into a solid-liquid separator to separate water and excrement generated by the fish;
the second step is that: primary precipitation and primary filtration, wherein the separated residual bait and excrement are discharged into a precipitation tank and are fermented by matching of a stirrer, and meanwhile, the separated water is subjected to primary filtration;
the third step: secondary sedimentation and secondary filtration, namely, the residual bait and the excrement after sedimentation fall into a secondary sedimentation tank by the principle of height drop to be sedimented by a stirrer, and simultaneously, the water after primary sterilization is filtered again;
the fourth step: squeezing and evolving, wherein the pump body discharges residues precipitated in the secondary sedimentation tank into a sludge squeezer for squeezing, and meanwhile, the filtered water is purified;
the fifth step: precipitating, namely precipitating the purified water so as to fish out suspended matters in the water;
and a sixth step: and (4) discharging, namely monitoring the water quality after precipitation, opening a valve after the water quality reaches a standard, discharging part of the water into a reservoir, sterilizing the water for use at a later stage when required, and directly discharging the sterilized water into the fishpond.
The first embodiment is as follows: a treatment method for a circulating water system of an aquatic high-density farm comprises the following steps:
the first step is as follows: solid-liquid separation, namely pumping water in the fish culture area through a water pump and discharging the water into a solid-liquid separator to separate water and excrement generated by the fish;
the second step is that: the first-stage sedimentation and the first-stage filtration are carried out, the separated residual bait and excrement are discharged into a sedimentation tank to be fermented through the matching of a stirrer, meanwhile, the separated water is subjected to primary filtration, the settling time of the residual bait and the excrement after solid-liquid separation is not less than 3 hours, and the biological filtration hairbrush is used for primary filtration of the residual bait and the excrement in the water in the first-stage filtration;
the third step: secondary sedimentation and secondary filtration, namely, the residual bait and the excrement after sedimentation fall into a secondary sedimentation tank by the principle of height drop to be sedimented by a stirrer, and simultaneously, the water after primary sterilization is filtered again;
the fourth step: squeezing and evolving, wherein the pump body discharges residues precipitated in the secondary sedimentation tank into a sludge squeezer for squeezing, and meanwhile, the filtered water is purified;
the fifth step: precipitating, namely precipitating the purified water so as to fish out suspended matters in the water;
and a sixth step: and (4) discharging, namely monitoring the water quality after precipitation, opening a valve after the water quality reaches a standard, discharging part of the water into a reservoir, sterilizing the water for use at a later stage when required, and directly discharging the sterilized water into the fishpond.
Example two: a treatment method for a circulating water system of an aquatic high-density farm comprises the following steps:
the first step is as follows: solid-liquid separation, namely pumping water in the fish culture area through a water pump and discharging the water into a solid-liquid separator to separate water and excrement generated by the fish;
the second step is that: the first-stage sedimentation and the first-stage filtration are carried out, the separated residual bait and excrement are discharged into a sedimentation tank to be fermented through the matching of a stirrer, meanwhile, the separated water is subjected to primary filtration, the settling time of the residual bait and the excrement after solid-liquid separation is not less than 3 hours, and the biological filtration hairbrush is used for primary filtration of the residual bait and the excrement in the water in the first-stage filtration;
the third step: secondary sedimentation and secondary filtration, namely, the residual bait and the excrement after sedimentation fall into a secondary sedimentation tank by the principle of height drop to carry out sedimentation by a stirrer, and simultaneously, the water after primary sterilization is filtered again, an ozone aeration device is arranged in the secondary sedimentation tank, and the residual bait and the excrement are filtered by biological balls in a secondary filtration tank;
the fourth step: squeezing and evolving, wherein the pump body discharges residues precipitated in the secondary sedimentation tank into a sludge squeezer for squeezing, and meanwhile, the filtered water is purified;
the fifth step: precipitating, namely precipitating the purified water so as to fish out suspended matters in the water;
and a sixth step: and (4) discharging, namely monitoring the water quality after precipitation, opening a valve after the water quality reaches a standard, discharging part of the water into a reservoir, sterilizing the water for use at a later stage when required, and directly discharging the sterilized water into the fishpond.
Example three: a treatment method for a circulating water system of an aquatic high-density farm comprises the following steps:
the first step is as follows: solid-liquid separation, namely pumping water in the fish culture area through a water pump and discharging the water into a solid-liquid separator to separate water and excrement generated by the fish;
the second step is that: the first-stage sedimentation and the first-stage filtration are carried out, the separated residual bait and excrement are discharged into a sedimentation tank to be fermented through the matching of a stirrer, meanwhile, the separated water is subjected to primary filtration, the settling time of the residual bait and the excrement after solid-liquid separation is not less than 3 hours, and the biological filtration hairbrush is used for primary filtration of the residual bait and the excrement in the water in the first-stage filtration;
the third step: secondary sedimentation and secondary filtration, namely, the residual bait and the excrement after sedimentation fall into a secondary sedimentation tank by the principle of height drop to carry out sedimentation by a stirrer, and simultaneously, the water after primary sterilization is filtered again, an ozone aeration device is arranged in the secondary sedimentation tank, and the residual bait and the excrement are filtered by biological balls in a secondary filtration tank;
the fourth step: squeezing and evolving, namely discharging the residues precipitated in the secondary sedimentation tank into a sludge squeezer by a pump body for squeezing, purifying the filtered water, and purifying the water by plants so as to remove chemical substances such as nitrogen, phosphorus and the like;
the fifth step: precipitating, namely precipitating the purified water so as to fish out suspended matters in the water;
and a sixth step: and (4) discharging, namely monitoring the water quality after precipitation, opening a valve after the water quality reaches a standard, discharging part of the water into a reservoir, sterilizing the water for use at a later stage when required, and directly discharging the sterilized water into the fishpond.
Example four: a treatment method for a circulating water system of an aquatic high-density farm comprises the following steps:
the first step is as follows: solid-liquid separation, namely pumping water in the fish culture area through a water pump and discharging the water into a solid-liquid separator to separate water and excrement generated by the fish;
the second step is that: the first-stage sedimentation and the first-stage filtration are carried out, the separated residual bait and excrement are discharged into a sedimentation tank to be fermented through the matching of a stirrer, meanwhile, the separated water is subjected to primary filtration, the settling time of the residual bait and the excrement after solid-liquid separation is not less than 3 hours, and the biological filtration hairbrush is used for primary filtration of the residual bait and the excrement in the water in the first-stage filtration;
the third step: secondary sedimentation and secondary filtration, namely, the residual bait and the excrement after sedimentation fall into a secondary sedimentation tank by the principle of height drop to carry out sedimentation by a stirrer, and simultaneously, the water after primary sterilization is filtered again, an ozone aeration device is arranged in the secondary sedimentation tank, and the residual bait and the excrement are filtered by biological balls in a secondary filtration tank;
the fourth step: squeezing and evolving, namely discharging the residues precipitated in the secondary sedimentation tank into a sludge squeezer by a pump body for squeezing, purifying the filtered water, and purifying the water by plants so as to remove chemical substances such as nitrogen, phosphorus and the like;
the fifth step: precipitating, namely precipitating the purified water so as to fish out suspended matters in the water;
and a sixth step: and (3) discharging, namely monitoring the water quality after precipitation, opening a valve after the water quality reaches a standard, discharging part of the water into a reservoir, sterilizing the water for use in a later period when required, directly discharging the sterilized water into the fish pond, and sterilizing the water by ultraviolet rays before discharging.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A treatment method for a circulating water system of an aquatic high-density farm comprises the following steps:
the first step is as follows: solid-liquid separation, namely pumping water in the fish culture area through a water pump and discharging the water into a solid-liquid separator to separate water and excrement generated by the fish;
the second step is that: primary precipitation and primary filtration, wherein the separated residual bait and excrement are discharged into a precipitation tank and are fermented by matching of a stirrer, and meanwhile, the separated water is subjected to primary filtration;
the third step: secondary sedimentation and secondary filtration, namely, the residual bait and the excrement after sedimentation fall into a secondary sedimentation tank by the principle of height drop to be sedimented by a stirrer, and simultaneously, the water after primary sterilization is filtered again;
the fourth step: squeezing and evolving, wherein the pump body discharges residues precipitated in the secondary sedimentation tank into a sludge squeezer for squeezing, and meanwhile, the filtered water is purified;
the fifth step: precipitating, namely precipitating the purified water so as to fish out suspended matters in the water;
and a sixth step: and (4) discharging, namely monitoring the water quality after precipitation, opening a valve after the water quality reaches a standard, discharging part of the water into a reservoir, sterilizing the water for use at a later stage when required, and directly discharging the sterilized water into the fishpond.
2. The method for treating the circulating water system of the aquatic product high-density farm according to claim 1, wherein the method comprises the following steps: in the second step, the settling time of the residual bait and the excrement after solid-liquid separation is not less than 3 hours, and the biological filtering brush is used for primary filtering of the residual bait and the excrement in the water in the primary filtering.
3. The method for treating the circulating water system of the aquatic product high-density farm according to claim 1, wherein the method comprises the following steps: in the third step, the secondary sedimentation tank contains an ozone aeration device, and the secondary filtering tank filters residual bait and excrement through biological balls.
4. The method for treating the circulating water system of the aquatic product high-density farm according to claim 1, wherein the method comprises the following steps: and in the fourth step, the water is purified by the plants so as to remove chemical substances such as nitrogen, phosphorus and the like.
5. The method for treating the circulating water system of the aquatic product high-density farm according to claim 1, wherein the method comprises the following steps: in the sixth step, sterilization is performed by ultraviolet rays before water is drained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010490835.5A CN111573990A (en) | 2020-06-02 | 2020-06-02 | Method for treating circulating water system of aquatic high-density farm |
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| CN202010490835.5A CN111573990A (en) | 2020-06-02 | 2020-06-02 | Method for treating circulating water system of aquatic high-density farm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113068651A (en) * | 2021-03-30 | 2021-07-06 | 岳阳市江南农业科技研究院 | High-density water quality purification system for crayfish breeding and method thereof |
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| EP3342283A1 (en) * | 2016-12-29 | 2018-07-04 | NP Innovation AB | Filter intended for a fish farming system |
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2020
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| CN104430134A (en) * | 2014-11-28 | 2015-03-25 | 金贝尔(福建)水环境工程有限公司 | Efficient, energy-saving and land-saving factory circulating water high-density breeding system |
| EP3342283A1 (en) * | 2016-12-29 | 2018-07-04 | NP Innovation AB | Filter intended for a fish farming system |
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Cited By (2)
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| CN113068651A (en) * | 2021-03-30 | 2021-07-06 | 岳阳市江南农业科技研究院 | High-density water quality purification system for crayfish breeding and method thereof |
| CN113068651B (en) * | 2021-03-30 | 2023-02-10 | 岳阳市江南农业科技研究院 | High-density water quality purification system for crayfish breeding and method thereof |
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Application publication date: 20200825 |