CN112939229A - Method for separating and treating water and sewage of aquaculture tail water - Google Patents
Method for separating and treating water and sewage of aquaculture tail water Download PDFInfo
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- CN112939229A CN112939229A CN202110111322.3A CN202110111322A CN112939229A CN 112939229 A CN112939229 A CN 112939229A CN 202110111322 A CN202110111322 A CN 202110111322A CN 112939229 A CN112939229 A CN 112939229A
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- 239000010865 sewage Substances 0.000 title claims abstract description 85
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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
- 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
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- 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
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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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
- 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
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
Abstract
The invention relates to the technical field of aquaculture, and discloses a method for separating and treating aquaculture tail water and sewage. The method for separating and treating the water and the sewage of the aquaculture tail water comprises the steps of discharging water in an upper layer 2/3 or 3/5 of a culture pond into a biological ecological treatment pond, utilizing algae in the biological ecological treatment pond to breed and consume nutrient salts in the culture tail water under the sunlight, and then utilizing filter-feeding fishes and shellfishes and zooplankton to ingest the algae to enable the water quality to reach the standard; waste water at the bottom of the culture pond is discharged into the sedimentation pond to precipitate culture organic dirt, the switch of the bottom drain outlet is controlled by the automatic water-dirt separation management system according to the precipitation condition of the culture organic dirt, bottom dirt discharge is automatically started or closed, water in the dirt is filtered out by the filter cloth bag and the dirt is dried in the sun to serve as organic fertilizer, and the whole operation is simple, labor is saved, and the culture tail water treatment effect is good.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a method for separating and treating water and sewage of aquaculture tail water.
Background
All fishery culture needs to regularly discharge culture tail water to remove excrement and residual bait precipitated at the bottom, so that cultured objects can always maintain the optimal physiological and ecological states under the high-density culture condition, thereby achieving the purposes of healthy and rapid growth and maximally improving the yield and quality of unit water body. Discharged solid suspended matter and water are generally discharged or recycled after natural precipitation separation, but simple gravity precipitation cannot achieve a good purification effect, existing sedimentation tanks are communicated with each other and cannot achieve an expected precipitation effect, pollution is often brought to the environment or the standard exceeding of total nitrogen, total phosphorus and suspended matters in the culture environment is caused, certain problems are brought to the environment while high-quality protein sources are provided for people in aquaculture, the concentrations of rich nutrient substances such as organic matters (COD), ammonia nitrogen and suspended matters in the culture tail water are high, bottom sediments are black, odor is strong, the flushing discharge time is relatively concentrated, certain influences are caused to the environment, and all treatment methods of the culture tail water are mainly 2.
One is to construct the artificial wetland to purify the aquaculture wastewater, at present, farmers mainly use a combined type technology integration, firstly realize the bottom sewage collection and nitrification of the aquaculture tail water and degrade organic matters in the water body through devices such as filtration, sedimentation, aeration and the like, and utilize abundant aquatic plants and animals in the artificial wetland to intercept nitrogen and phosphorus in the water body, so that all indexes in the aquaculture tail water meet the discharge requirement; the second is industrial tail water treatment, the adopted core basic technology is a conventional domestic sewage treatment process system technology for quickly treating domestic sewage and tail water treatment equipment which is automatically researched and developed for treatment, indexes such as permanganate and ammonia nitrogen are efficiently degraded and difficultly precipitated suspended matters in water are quickly separated by methods such as a micro-agent flocculation technology, a denitrification technology and the like, and the culture tail water is relatively concentrated in discharge due to large water volume. The two treatment methods have the disadvantages of low treatment efficiency and high cost. Therefore, a technology which has strong operability and low cost and can quickly and effectively reduce the pollutants in the water body and reduce the eutrophication needs to be provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for separating and treating the water and sewage of the aquaculture tail water, which has the advantage of good tail water treatment effect and solves the problems provided by the technical background.
The invention provides the following technical scheme that the system comprises a culture pond, a filter cloth bag, a biological ecological treatment pond, a sedimentation tank group and an automatic sewage separation management system, wherein the culture pond comprises upper and middle culture tail water and bottom culture wastewater;
an aquaculture tail water and sewage separation and treatment method comprises the following operation steps:
the tail water of the upper and middle layers is pumped to a biological ecological treatment pool by a lift pump for treatment. In the biological ecological treatment pool, a large amount of floating algae is propagated by solarization to achieve the purposes of quickly consuming water body nutritive salt and regulating and controlling the micro-ecological environment of the water body, and then after zooplankton (fresh water fleas with salinity lower than 10 and copepods with high salinity) ingests the algae and filter-feeding algae by filter-feeders (silver carp and bighead carp with salinity lower than 10 and mullet or oyster with high salinity) are manually put in, a large amount of floating algae in the water is consumed and then discharged through a water outlet.
The bottom is bred waste water and is discharged sedimentation treatment in the sedimentation tank group, and the large granule organic waste that contains in the sewage can precipitate the bottom of the pool, and the clear water on upper strata can be carried biological ecological treatment pond retreatment by the elevator pump extraction. The settled sewage is discharged through a sewage outlet at the bottom, the water is primarily filtered through a filter cloth bag, and then the sewage is dried by the sun until the water content is less than 10 percent to become the organic fertilizer.
The method is characterized in that the 2/3 or 3/5 area at the upper end of the culture pond is an upper-middle culture tail water area, the 1/3 or 2/5 area at the lower end of the culture pond is a bottom culture wastewater area, the bottom culture wastewater area is subjected to mechanical treatment (sedimentation), larger granular organic matters contained in sewage are removed, the organic matters are discharged into a biological ecological treatment pond for further treatment, and the treated tail water can be directly discharged without pollution to the environment.
Carefully selecting, wherein the water quality treatment time of the biological ecological treatment tank is 5-7 days, and the absorption efficiency of the planktonic algae propagated in the tank on ammonia nitrogen reaches more than 70%.
And (3) carefully selecting, wherein the filter cloth bag is a cloth filter bag with more than 600 meshes.
Carefully selecting, the sedimentation tank group is divided into a pool A and a pool B, the pool A and the pool B are bottom layer cultivation sewage treatment pools, the total volume is about 30% of the cultivation pools, and the pools are connected in parallel and independently operate.
And (3) carefully selecting, wherein the culture pond, the biological ecological treatment pond and the sedimentation tank group are communicated with each other, but the A pond and the B pond of the sedimentation tank group are not communicated.
And (3) selecting, wherein the bottom of the sedimentation tank group is provided with an automatic sewage discharge device, and when the solid residue in the sedimentation tank reaches 1/2 or 3/4, the automatic sewage discharge device can be started to discharge the solid residue to a filter cloth bag.
The system interface can display the water quality summary of each water pool, the user can switch the culture pool, the biological ecological treatment pool and the sedimentation pool, the user can automatically control the switch device of the water inlet and the sewage outlet according to the deposition condition of the sewage, and the sewage outlet of the water outlet and the sedimentation pool can be automatically started or closed.
Compared with the prior art, the invention has the following beneficial effects:
1. the method for separating and treating the tail water and the sewage of the aquaculture achieves the aim of good tail water treatment effect by arranging the culture pond, the filtering cloth bag, the sedimentation tank group, the automatic water and sewage separation management system and the like, and aims to provide the method for separating and treating the tail water and the sewage of the aquaculture, which adopts a grading and stepwise sedimentation mode to efficiently and quickly separate the water and the sewage and carries out efficient, ecological degradation and harmless treatment, and comprises the following specific steps: discharging water in the upper layer 2/3 or 3/5 into a biological ecological treatment pool through a pipeline, firstly manually putting algae seeds or naturally breeding to promote the mass propagation of algae and greatly utilize nutrient salt of water, and then manually putting zooplankton (freshwater water fleas with salinity lower than 10 and copepods with high salinity) and filter feeding animals (silver carp and bighead carp with salinity lower than 10 and mullet or oyster with high salinity) to greatly consume various algae bred in the water, so that the eutrophication degree of the water is effectively, quickly and safely reduced, and the water is discharged or recycled as culture water after the water reaches the standard through detection; and sewage on the lower layer is discharged to the bottom layer sewage treatment tanks for treatment, each bottom layer sewage treatment system consists of 2-4 independent sedimentation tanks, each sedimentation tank is filled with the sewage in turn and then is subjected to standing treatment, and after sediments are precipitated, clear water on the upper layer is discharged to the biological ecological treatment tank for biological ecological treatment and then is discharged or is recycled as culture water. The sedimentation tank is used in turn, so that the sedimentation efficiency can be improved, after the deposited sewage reaches a certain volume, the sewage is discharged through the automatic bottom sewage discharge port opened by the automatic sewage separation management system, the filter bag is used for filtering moisture by using cloth with the size of more than 600 meshes, the filtered sewage is dried until the moisture content is not less than 10 percent, and the filtered sewage is used as the organic fertilizer for flowers and plants in the cultivation base, so that the whole operation is simple, the environment is protected, the effect is good, and the manpower is saved.
Drawings
FIG. 1 is a block diagram illustrating the structure of the present invention;
FIG. 2 is a schematic view of the structural operation of the present invention.
1. The ecological sewage treatment system comprises a culture pond, 2. sediments, 3. a water pump, 4. an automatic switch device, 5. a switch, 6. a sedimentation tank group, 7. a sedimentation A pond, 8. a sedimentation B pond, 9. a biological ecological treatment pond, 10. zooplankton, 11. algae, 12. a sewage discharge outlet, 13.600 meshes of filter bags and 14. a water discharge outlet
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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-2, a method for separating and treating the water and sewage of the aquaculture tail water comprises a culture pond, a filter cloth bag, a biological ecological treatment pond, a sedimentation pond group and an automatic water and sewage separation management system, wherein the culture pond comprises an upper culture tail water layer, a middle culture tail water layer and a bottom culture waste water layer;
an aquaculture tail water and sewage separation and treatment method comprises the following operation steps:
1. sea water prawn high-level pool
When the prawns are collected in the elevated pond, 60-70% of water is discharged firstly, the prawns are fished after the water level is reduced, the tail water of the upper-layer and middle-layer cultivation is discharged into the biological ecological treatment pond, and as the prawn cultivation environment of the elevated pond is relatively single, the water body at the last stage generally takes large diatoms as the main part, and 100 plus 150 pieces of screening fish or oyster filter feeding algae are synchronously put in; the large algae is slow in propagation, so that the propagation of artificial propagation of partial chlorella, Platymonas and chrysophyceae is fast, the species which are small and easy to eat are synchronously put in, after propagation for 1-2 days, zooplankton which can be artificially propagated such as rotifer and copepods are additionally put in to eat the algae, the nutrient salt of the culture tail water can be reduced by 70 percent after treatment for 5-7 days, the discharge standard is reached, the water quality is discharged through a water outlet after reaching the standard through detection, and the zooplankton cultured in the water body can be used as the initial feed for most aquatic economic animal larvae after being collected by a screen.
After the water level is reduced, commercial shrimps are fished, the remaining water is very turbid due to artificial continuous stirring after the shrimps are captured, the water is discharged into a sedimentation tank, a tank A is discharged firstly, and the precipitation is shielded from light after the tank A is full; and then discharging the pond B, shading and precipitating after the pond B is filled with the water, and so on until all the water in the culture pond is discharged. After the cultivation wastewater is shaded and precipitated for 24-48 hours, the sewage is basically precipitated, and the tail water on the upper layer of the sedimentation tank is discharged to a biological ecological treatment tank. After the sewage in the lower layer is discharged to the sedimentation tank, the bottom of the aquaculture pond with the drained water can be cleaned, and aquaculture production activities can be carried out again after the cleaning treatment. Considerable silt, food residues, excrement, dead individuals and the like can be deposited at the bottom of the aquaculture pond, sewage in a washing pond is sequentially discharged into a sedimentation tank A, B and the like, shading and sedimentation are continuously performed, after the sewage is precipitated, tail water at the upper layer is continuously discharged into a biological ecological treatment tank for treatment, the precipitated sewage is discharged, the sewage is received by a water filtering bag with the mesh of more than 600 during discharge, the sewage is intercepted and water is filtered out, and the intercepted sewage is dried in the sun after being cleaned out until the water content is less than 10% and becomes organic fertilizer.
2. Prawn soil pond freshwater aquaculture pond
When the common freshwater soil pond collects shrimps, 60-70% of water is discharged firstly, the shrimps are caught only after the water level is reduced, the tail water from the upper layer and the middle layer of culture is discharged into a biological ecological treatment pond, 150 silver carp filter feeding algae are synchronously added, the plankton feeding algae which can be artificially bred such as rotifer, water flea and the like are properly added after 1-2 days according to the ingestion and reproduction conditions of the algae, the nutritive salt of the tail water from the culture can be reduced by 70% after the tail water is treated for 5-7 days, the tail water reaches the discharge standard, the tail water quality is discharged after the tail water quality reaches the standard, and the plankton cultured in the water body can be used as the initial feed of most aquatic economic animal larvae after being collected by a screen.
After the water level is reduced, commercial shrimps are fished, the remaining water is very turbid due to artificial continuous stirring after the shrimps are captured, the water is discharged into a sedimentation tank, a tank A is discharged firstly, and the precipitation is shielded from light after the tank A is full; and then discharging the pond B, shading and precipitating after the pond B is filled with the water, and so on until all the water in the culture pond is discharged. After the cultivation wastewater is shaded and precipitated for 24-48 hours, the sewage is basically precipitated, and the tail water on the upper layer of the sedimentation tank is discharged to a biological ecological treatment tank. After the bottom layer sewage is discharged to the sedimentation tank, the bottom of the aquaculture pond with the drained water can be cleaned, and the next aquaculture production is prepared. Considerable silt, food residues, excrement, dead individuals and the like can be deposited at the bottom of the aquaculture pond, sewage in a washing pond is sequentially discharged into a sedimentation tank A, B and the like, shading and sedimentation are continuously performed, after the sewage is precipitated, tail water at the upper layer is continuously discharged into a biological ecological treatment tank for treatment, the precipitated sewage is discharged through a sewage discharge outlet, a water filtering bag with the size of more than 600 meshes is used for receiving the sewage during discharge, the sewage is intercepted and water is filtered out, and the intercepted sewage is dried in the sun after being cleaned out until the water content is less than 10% and becomes organic fertilizer.
The working principle is as follows: during the use, when breed the product results, the sewage of the upper tail water and lower floor through utilizing different pipeline reposition of redundant personnel, gets into biological ecological treatment pond and sewage treatment system respectively and handles: the biological ecological treatment pool is mainly used for treating water in the upper layer 2/3 or 3/5 of a culture pond, because solid debris in the upper layer water of a normal culture pond is few, tail water in the culture of the upper layer and the middle layer is discharged to the biological ecological treatment pool for treatment, because of sufficient sunlight and rich nutrition, a large amount of floating algae absorbs nutritive salt in a water body and is propagated in a large amount, and then zooplankton (fresh water fleas with salinity lower than 10 and copepods with high salinity) ingests the algae or filter feeding algae (silver carps and bighead carps with salinity lower than 10 and mullets or oysters with high salinity) ingests the floating algae in the water body by manual feeding, the water quality treatment time of the biological ecological treatment pool is 7-10 days, the eutrophication of the water body can be reduced by more than 70 percent, and the discharge standard can be effectively and safely achieved in a short time; the sewage treatment system mainly treats solid residues in 1/3 or 2/5 areas at the lower layer of the aquaculture pond and cleans sewage of deposited sewage at the lower layer, each sewage treatment system is composed of 1-2 sedimentation tanks which are independent from each other, the size and scale of the tanks are determined according to the water quantity to be treated, one sedimentation tank is filled at first each time and then sedimentated for 2-3 days, other sedimentation tanks can continuously store sewage in the period, the sewage is recycled, the efficiency is improved, settled upper clear water is pumped to a biological ecological treatment tank through a lifting pump and treated, the sewage at the lower layer is accumulated to the volume of the sedimentation tank of 1/2 or above, a sewage discharge outlet is started through an automatic sewage separation management system, and the sewage is automatically discharged. The discharged sewage is filtered to remove water by a cloth filter bag with more than 600 meshes, and then dried in the sun until the water content is less than 10 percent, so that the sewage becomes organic fertilizer for harmless treatment.
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. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element 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. In the drawings of the present invention, the filling pattern is only for distinguishing the layers, and is not limited to any other way.
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 (8)
1. A method for separating and treating the water and sewage of the tail water of aquaculture comprises a culture pond, a filter cloth bag, a biological ecological treatment pond, a sedimentation pond group and an automatic water and sewage separation management system, wherein the culture pond comprises an upper culture tail water layer, a middle culture tail water layer and a bottom culture waste water layer;
the operation steps of the method for separating and treating the water and the sewage of the aquaculture tail water are as follows
The tail water of the upper and middle layers is pumped to a biological ecological treatment pool by a lift pump for treatment. In the biological ecological treatment pool, a large amount of floating algae is propagated by solarization to achieve the purposes of quickly consuming water body nutritive salt and regulating and controlling the micro-ecological environment of the water body, and then after zooplankton (fresh water fleas with salinity lower than 10 and copepods with high salinity) ingests the algae and filter-feeding algae by filter-feeders (silver carp and bighead carp with salinity lower than 10 and mullet or oyster with high salinity) are manually put in, a large amount of floating algae in the water is consumed and then discharged.
The bottom is bred waste water and is discharged sedimentation treatment in the sedimentation tank group, and the large granule organic waste that contains in the sewage can precipitate the bottom of the pool, and the clear water on upper strata can be carried biological ecological treatment pond retreatment by the elevator pump extraction. The settled sewage is discharged through a sewage outlet at the bottom, the water is primarily filtered through a filter cloth bag, and then the sewage is dried by the sun until the water content is less than 10 percent to become the organic fertilizer.
2. The method for separating and treating the aquaculture tail water according to claim 1, which is characterized in that: the water quality treatment time of the biological ecological treatment tank is 5-7 days, and the absorption efficiency of the planktonic algae propagated in the tank on ammonia nitrogen reaches more than 70%.
3. The method for separating and treating the aquaculture tail water according to claim 1, which is characterized in that: the sedimentation tank group is divided into a tank A and a tank B, the tank A and the tank B are connected in parallel, and the sewage of the culture bottom layer discharged in batches can be independently and alternately sedimentated, so that the sewage can be sedimentated in a sufficient time without interference.
4. The method for separating and treating the aquaculture tail water according to claim 1, which is characterized in that: the culture pond, the biological ecological treatment pond and the sedimentation pond group are communicated with each other, and the sedimentation pond A and the sedimentation pond B are not communicated with each other.
5. The method for separating and treating the aquaculture tail water according to claim 1, which is characterized in that: the filtering cloth bag is a cloth filtering bag with more than 600 meshes.
6. The method for separating and treating the aquaculture tail water according to claim 1, which is characterized in that: the automatic water and sewage separation management system has the advantages that the system interface can display the water quality summary of each current water pool, a user can automatically switch the culture pond, the biological ecological treatment pond and the sedimentation pond, the user controls the automatic switch devices of the water outlet, the water inlet and the sewage outlet according to the water quality condition, and the sewage outlet of the water outlet and the sewage outlet of the sedimentation pond are automatically started or closed at a certain time.
7. The method for separating and treating the aquaculture tail water according to claim 1, which is characterized in that: the dirt residue in the sedimentation tank is automatically discharged when the dirt residue is accumulated to 1/2 or 3/4 of the volume of the sedimentation tank.
8. The method for separating and treating the aquaculture tail water according to claim 1, which is characterized in that: the filter feeding organisms use fresh water daphnia with salinity lower than 10, and use copepods with high salinity; silver carp and bighead carp are used when salinity is lower than 10, and mullet or oyster are used when salinity is high. The filter feeders can filter and feed large-scale planktonic algae, and the planktonic animals can quickly breed and feed a large amount of small-scale planktonic algae so as to achieve the purposes of rapidness, high efficiency, multi-angle pollution-free treatment of rapidly bred algae and reduction of nutrient salts in water.
Priority Applications (1)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113683266A (en) * | 2021-09-06 | 2021-11-23 | 苑春亭 | Method for treating inorganic nitrogen and active phosphate in seawater pond culture tail water |
| CN114223480A (en) * | 2021-12-21 | 2022-03-25 | 上海海洋大学 | Method for resource planting by utilizing aquaculture biological flocs |
| CN114506971A (en) * | 2022-01-27 | 2022-05-17 | 乐亭县向光海水养殖场 | Aquaculture tail water treatment method based on energy recycling |
| CN115072818A (en) * | 2022-08-02 | 2022-09-20 | 江阴四方游泳康复产业股份有限公司 | Breeding pond tail water treatment system |
| CN115124149A (en) * | 2022-09-02 | 2022-09-30 | 东营市阔海水产科技有限公司 | Tail water treatment system combining pool bottom sewage discharge and ecological purification pool |
| CN115581970B (en) * | 2022-11-07 | 2024-04-30 | 中国水产科学研究院珠江水产研究所 | A filtration and separation system for breeding tail water treatment |
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| JP2011130685A (en) * | 2009-12-22 | 2011-07-07 | Sea Plus Corp | Closed circulation type culture method for fishes or shellfishes |
| CN103329828A (en) * | 2013-07-10 | 2013-10-02 | 刘建勇 | Aquaculture water treating device and application thereof |
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Patent Citations (2)
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| JP2011130685A (en) * | 2009-12-22 | 2011-07-07 | Sea Plus Corp | Closed circulation type culture method for fishes or shellfishes |
| CN103329828A (en) * | 2013-07-10 | 2013-10-02 | 刘建勇 | Aquaculture water treating device and application thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113683266A (en) * | 2021-09-06 | 2021-11-23 | 苑春亭 | Method for treating inorganic nitrogen and active phosphate in seawater pond culture tail water |
| CN114223480A (en) * | 2021-12-21 | 2022-03-25 | 上海海洋大学 | Method for resource planting by utilizing aquaculture biological flocs |
| CN114506971A (en) * | 2022-01-27 | 2022-05-17 | 乐亭县向光海水养殖场 | Aquaculture tail water treatment method based on energy recycling |
| CN115072818A (en) * | 2022-08-02 | 2022-09-20 | 江阴四方游泳康复产业股份有限公司 | Breeding pond tail water treatment system |
| CN115124149A (en) * | 2022-09-02 | 2022-09-30 | 东营市阔海水产科技有限公司 | Tail water treatment system combining pool bottom sewage discharge and ecological purification pool |
| CN115581970B (en) * | 2022-11-07 | 2024-04-30 | 中国水产科学研究院珠江水产研究所 | A filtration and separation system for breeding tail water treatment |
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