CN215454789U - Solid metabolite collecting device for high-density recirculating aquaculture - Google Patents
Solid metabolite collecting device for high-density recirculating aquaculture Download PDFInfo
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- CN215454789U CN215454789U CN202121543614.6U CN202121543614U CN215454789U CN 215454789 U CN215454789 U CN 215454789U CN 202121543614 U CN202121543614 U CN 202121543614U CN 215454789 U CN215454789 U CN 215454789U
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Abstract
The utility model discloses a solid metabolite collecting device for high-density recirculating aquaculture, which comprises a floater collecting part and a precipitate collecting part, wherein the floater collecting part comprises an overflow disc and a collecting cylinder; the sediment collecting part comprises a collecting chassis and a supporting pipe, and the supporting pipe is vertically connected to the center of the collecting chassis; the floating object collecting part and the sediment collecting part are separately or mutually connected and arranged in the culture pond; the sewage containing the solid metabolites collected by the floating matter collecting part and the sediment collecting part respectively enters different filtering devices for filtering. The utility model not only can collect the precipitated metabolites in the circulating aquaculture water body, but also can collect the floating metabolites, and the collection efficiency of the floating metabolites is higher; the drain pipe through making to float the metabolite separately sets up with the drain pipe of deposiing the metabolite, has greatly alleviateed subsequent water purification treatment device's burden, has reduced high density recirculating aquaculture system's consumption.
Description
Technical Field
The utility model belongs to the field of aquaculture, and particularly relates to a solid metabolite collecting device for high-density circulating water aquaculture.
Background
With the improvement of the technical level of aquaculture and the expansion of market demand, factory culture in China has been rapidly developed in recent years. Along with the lengthening of the culture time, as the culture density is larger, a large amount of solid metabolites of the cultured organisms which are rich in nitrogen, phosphorus, organic matters and toxic substances are generated in the water body, if the solid metabolites are not cleaned in time, the living environment of the cultured organisms is influenced, and the solid metabolites are accumulated to a certain degree to cause diseases of the cultured organisms, influence on the normal growth and yield of the cultured organisms and even cause mass death of the cultured organisms. Therefore, the key technology in the circulating water culture is to purify the culture water body. The first link of the purification treatment is to collect solid metabolites such as feces of cultured organisms in the culture water body.
The mode that present breed biology's to circulation aquaculture water solid metabolite is collected sets up the water hole in the bottom center department of breeding the pond mainly, and through making the water in the breed pond produce the vortex flow, solid metabolite gathers to the bottom center of breeding the pond, flows into sewage pipes through the water hole. This collection method only collects the submerged solid metabolites with specific gravity greater than that of water, but has little effect on the floating metabolites with specific gravity less than that of water. Secondly, the efficiency of the pollution discharge is not high. Because the area of the solid metabolite collecting area at the bottom of the culture pond is far smaller than the area of the water area of the culture pond, in high-density aquaculture, when the aquatic animals excrete at a concentrated time after feeding, the concentration of the solid metabolites in the aquaculture water body is rapidly increased, and at the moment, if the sewage discharge efficiency is low, the solid metabolites cannot be removed in time, so that the healthy growth of the aquatic animals is influenced.
Secondly, the solid metabolite collecting device of the existing circulating aquaculture water body enables sewage containing solid metabolites to enter a micro-filter for filtering, so that the burden of a subsequent water body purification treatment device is heavier, and the power consumption of a circulating aquaculture system is higher.
The present invention has been made in view of this situation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a solid metabolite collecting device which can efficiently collect floating metabolites and precipitated metabolites of aquatic products in a high-density circulating aquaculture water body.
In order to solve the technical problems, the utility model adopts the technical scheme that: a solid metabolite collection device for high density recirculating aquaculture includes
The floating object collecting part comprises an overflow disc and a collecting cylinder, the collecting cylinder is arranged in the overflow disc, and the floating object collecting part is positioned at the upper part of the culture pond and is used for collecting floating metabolites of aquatic products in the high-density circulating culture water body;
the sediment collecting part comprises a collecting chassis and a supporting pipe, the collecting chassis is positioned at the bottom of the culture pond, the supporting pipe is vertically connected to the center of the collecting chassis, and the sediment collecting part is used for collecting sediment metabolites of aquatic products in the high-density circulating culture water body; and
the floating object collecting part and the sediment collecting part are separately or mutually connected and arranged in the culture pond;
and the sewage containing the solid metabolites, which is respectively collected by the floating matter collecting part and the sediment collecting part, enters different water body purifying devices through respective sewage discharge pipelines.
Preferably, the overflow disc comprises a circular bottom and a side wall surrounding the bottom and having a certain height, the bottom is provided with a hollow boss in the direction opposite to the extending direction of the side wall, the bottom of the hollow boss is provided with a sewage discharge pipe, the collecting cylinder is in a hollow cylindrical shape, the top of the collecting cylinder is closed, the side wall of the collecting cylinder is distributed with a plurality of floating object collecting holes, the lower part of the collecting cylinder is arranged in the hollow boss, and the region of the collecting cylinder distributed with the floating object collecting holes is positioned outside the hollow boss.
Preferably, the overflow disc further comprises a cylindrical grid mesh enclosure, the grid mesh enclosure and the cylindrical side wall have the same diameter and are sleeved on the cylindrical side wall, and the grid size of the grid mesh enclosure is smaller than the size of aquatic products in the aquaculture water body.
Preferably, a drain outlet is formed in the center of the collecting chassis, the supporting tube is vertically connected to the drain outlet, and a plurality of groups of precipitate collecting holes are radially formed in the periphery of the drain outlet on the collecting chassis.
Preferably, the bottom of the collecting chassis further comprises an adjusting member capable of adjusting the size of the opening of the sediment collecting hole.
Preferably, the floater collecting part is connected with the wall of the culture pond, the bottom of the overflow disc is provided with one or more sewage suction holes, the sewage suction holes are respectively connected with one or more sewage suction pipes in the culture pond, the sediment collecting part and the floater collecting part are separately arranged, the collecting chassis of the sediment collecting part is arranged at the center of the bottom of the culture pond, and the supporting pipe is vertically connected with the center of the collecting chassis.
Preferably, the upper part of the supporting tube is provided with a grid structure, and the grid size of the grid structure is larger than the size of the solid metabolite in the aquaculture water body and smaller than the size of the aquatic product in the aquaculture water body.
Preferably, the collection chassis of the sediment collection part is positioned at the center of the bottom of the culture pond, the support pipe is vertically connected to the center of the collection chassis, and the drain pipe of the floating object collection part is sleeved in the support pipe.
After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects.
1. According to the utility model, the overflow disc and the collecting cylinder are arranged, the ratio of the area of the overflow disc to the area of the culture pond is larger, and the distribution of the floating matter collecting holes on the collecting cylinder is denser.
2. According to the utility model, the drain pipe for floating metabolites and the drain pipe for precipitated metabolites are separately arranged, the water containing floating metabolites and the water containing precipitated metabolites respectively enter different purification devices, the former water enters the floating substance filtering device, and the latter water enters the precipitate separating device, so that different water treatment processes are respectively carried out according to the characteristics of the floating metabolites and the precipitated metabolites, thus the water treatment efficiency is higher, the burden of the subsequent water purification treatment devices is greatly reduced, and the power consumption of the high-density recirculating aquaculture system is reduced.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model without limiting the utility model to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 shows a schematic composition diagram of a solid metabolite collecting device for high-density recirculating aquaculture according to one embodiment of the present invention;
FIG. 2 is a schematic view of a floating matter collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention;
FIG. 3 is a plan view of a floating material collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention;
FIG. 4 is a side view of a floating material collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention;
FIG. 5 is a schematic view showing that the floater collecting part is connected with the sewage suction pipe when the floater collecting part and the sediment collecting part of the solid metabolite collecting device for high-density recirculating aquaculture according to one embodiment of the present invention are opened;
FIG. 6 is a schematic view of a floating matter collecting part with a grid net cover of a solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention;
FIG. 7 is a schematic view of a precipitate collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention;
FIG. 8 is a plan view of a precipitate collecting part of the solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention;
FIG. 9 is a schematic view of the bottom of a culture pond arranged in cooperation with a sediment collecting part of a solid metabolite collecting device according to one embodiment of the present invention;
FIG. 10 is a schematic view illustrating a connection arrangement of a float collecting part and a sediment collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention;
fig. 11 is a schematic view illustrating a connection arrangement of a float collecting part with a grid mesh cover and a sediment collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention.
In the figure: 10-a float collection section; 11-an overflow pan; 12-a collection cartridge; 13-hollow boss; 14-a sewage draining pipe; 15-a float collection well; 16-a dirt suction hole; 17-a sewage suction pipe; 18-a grid mesh enclosure; 20-a precipitate collection section; 21-a collection chassis; 22-support tube; 23-a grid structure; 24-a sewage draining outlet; 25-a precipitate collection well; 26-a floater sewage draining outlet; 27-sludge drain.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
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; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example one
Fig. 1 shows a schematic composition diagram of a solid metabolite collecting device for high-density recirculating aquaculture according to one embodiment of the present invention. As shown in fig. 1, in the present embodiment, the solid metabolite collecting device for high-density circulating water aquaculture includes a float collecting part 10 and a precipitate collecting part 20, wherein the float collecting part 10 is located at an upper portion of the aquaculture pond and is used for collecting the float metabolites of aquatic products in the high-density circulating aquaculture water body, the precipitate collecting part 20 is located at a middle lower portion of the aquaculture pond and is used for collecting the precipitate metabolites of aquatic products in the high-density circulating aquaculture water body, the float collecting part 10 and the precipitate collecting part 20 are separately disposed in the aquaculture pond, and sewage containing solid metabolites, which is respectively collected by the float collecting part 10 and the precipitate collecting part 20, enters different water body purifying devices through respective sewage discharge pipelines for filtering.
Fig. 2 schematically shows a floating matter collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to one embodiment of the present invention. As shown in fig. 2, the float collecting part 10 of the present embodiment includes an overflow pan 11 and a collecting cylinder 12, and the collecting cylinder 12 is disposed in the overflow pan 11. The overflow pan 11 comprises a circular bottom and a side wall enclosing the bottom at a certain height, the bottom is provided with a hollow boss 13 in the direction opposite to the extending direction of the side wall, and the bottom of the hollow boss 13 is provided with a sewage discharge pipe 14. The collecting cylinder 12 is hollow cylindrical, the top of the collecting cylinder is closed, a plurality of floating object collecting holes 15 are distributed on the side wall of the collecting cylinder 12, the lower part of the collecting cylinder 12 is arranged in the hollow boss 13, and the area of the collecting cylinder, where the floating object collecting holes 15 are distributed, is positioned outside the hollow boss 13. The bottom of the overflow pan 11 is provided with one or more soil pick-up apertures 16. Fig. 3 is a plan view of a floating material collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to one embodiment of the present invention. Fig. 4 is a side view of a float collecting part of the solid metabolite collecting device for high-density recirculating aquaculture according to one embodiment of the present invention.
In the embodiment, as shown in fig. 5, during installation, the side wall of the overflow pan 11 is fixed on the wall of the culture pond (not shown), and one or more sewage suction holes 16 at the bottom of the overflow pan 11 are respectively connected with one or more sewage suction pipes 17 in the culture pond, so as to suck the sewage containing floating metabolites distributed at various positions of the culture pond into the overflow pan 11 of the floating matter collecting part 10. The sewage containing the floating metabolites is introduced into the soil discharge pipe 14 of the float collecting part 10 through the plurality of float collecting holes 15 on the sidewall of the collecting cylinder 12. The sewage discharge pipe 14 is connected to a sewage discharge pipe passing through the wall of the culture pond so as to collect the sewage containing the floating metabolites into the floating metabolite filtering means for filtering.
In a preferred embodiment, as shown in fig. 6, the overflow pan 11 further includes a cylindrical grid mesh enclosure 18, the grid mesh enclosure 18 has a diameter substantially the same as that of the cylindrical side wall thereof and is sleeved on the cylindrical side wall, and the grid size of the grid mesh enclosure 18 is smaller than that of aquatic products in the aquaculture water body, so as to prevent the aquatic products in the aquaculture water body from jumping into the overflow pan 11, and if the aquatic products are not found in time by a worker, the aquatic products die due to insufficient water and oxygen content in the overflow pan 11.
Fig. 7 schematically shows a schematic view of a precipitate collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to one embodiment of the present invention. As shown in fig. 7, the sediment trap 20 includes a trap base 21 and a support pipe 22, and the support pipe 22 is vertically connected to the center of the trap base 21. The upper part of the supporting tube 22 is provided with a grid structure 23, and the grid size of the grid structure 23 is larger than the size of the solid metabolite in the aquaculture water body and smaller than the size of the aquatic product in the aquaculture water body, so as to assist in collecting a part of floating metabolite positioned at the upper part of the aquaculture water body.
Fig. 8 shows a top view of a precipitate collecting part of a solid metabolite collecting device for high-density recirculating aquaculture according to an embodiment of the present invention. As shown in fig. 7, a sewage draining outlet 24 is formed at the center of the collecting chassis 21, and the supporting pipe 22 is vertically connected to the sewage draining outlet 24. The collecting chassis 21 is radially provided with a plurality of groups of precipitate collecting holes 25 around the sewage discharge outlet 24 for collecting the precipitated metabolites at the bottom of the culture pond.
FIG. 9 is a schematic view of the bottom of a culture pond arranged in cooperation with a precipitate collecting part of a solid metabolite collecting device according to an embodiment of the present invention. As shown in fig. 9, a float drain outlet 26 and a precipitate drain outlet 27 are respectively provided at the center of the bottom of the culture pond, the float drain outlet 26 is used for collecting the sewage containing the floating metabolites flowing into the support pipe 22, and the precipitate drain outlet 27 is used for collecting the sewage containing the precipitated metabolites flowing through the plurality of sets of precipitate collecting holes 25. The sewage containing the floating metabolites enters the floating substance filtering device for filtering through the floating substance discharging port 26, and the sewage containing the precipitated metabolites enters the precipitate separating device for filtering through the precipitate discharging port 27.
In a preferred embodiment, the bottom of the collection tray 21 further comprises an adjustment member that can adjust the size of the openings of the sets of sediment collection holes 25. When the concentration of the sediments in the water body is low, the openings of the multiple groups of sediment collecting holes 25 can be reduced or closed, so that the sediment collecting speed can be adjusted according to the concentration of the sediments in the culture pond, the water body is prevented from unnecessarily circulating too fast, the water body purifying speed of the whole high-density circulating water culture system is adjusted, namely the operation time of each water body purifying device of the circulating water culture system is adjusted, and the power consumption of the high-density circulating water culture system is reduced.
Example two
In this embodiment, a solid metabolite collection device for high density recirculating aquaculture includes floater collection portion 10 and sediment collection portion 20, floater collection portion 10 is located the upper portion of breed pond, be used for collecting the floater of the aquatic products in the high density circulation aquaculture water body, sediment collection portion 20 is located the middle and lower part of breed pond, be used for collecting the sediment metabolite of the aquatic products in the high density circulation aquaculture water body, floater collection portion 10 and sediment collection portion 20 set up in breed pond with interconnect, the sewage that contains the solid metabolite that floater collection portion 10 and sediment collection portion 20 collected respectively gets into different water purifier through respective sewage pipes and filters.
Fig. 10 schematically shows a schematic view of a connection arrangement of a float collecting part and a sediment collecting part of the solid metabolite collecting device for high-density recirculating aquaculture according to one embodiment of the present invention. Unlike the first embodiment, the bottom of the overflow pan 11 of the floating matter collecting part 10 of the solid metabolite collecting device of the present embodiment does not include one or more soil suction holes 16, and the soil discharge pipe 14 of the floating matter collecting part 10 is sleeved with the support pipe 22 of the precipitate collecting part 20. The upper part of the support tube 22 of the sediment collection section does not comprise a grid structure 23.
In a preferred embodiment, as shown in fig. 11, the overflow pan 11 further includes a cylindrical grid mesh enclosure 18, the grid mesh enclosure 18 has a diameter substantially the same as that of the cylindrical side wall thereof and is sleeved on the cylindrical side wall, and the grid size of the grid mesh enclosure 18 is smaller than that of aquatic products in the aquaculture water body, so as to prevent the aquatic products in the aquaculture water body from jumping into the overflow pan 11, and if the aquatic products are not found in time by a worker, the aquatic products die due to insufficient water and oxygen content in the overflow pan 11.
In a preferred embodiment, the bottom of the collection tray 21 further comprises an adjustment member that can adjust the size of the openings of the sets of sediment collection holes 25. When the concentration of the sediments in the water body is low, the openings of the multiple groups of sediment collecting holes 25 can be reduced or closed, so that the sediment collecting speed can be adjusted according to the concentration of the sediments in the culture pond, the water body is prevented from unnecessarily circulating too fast, the water body purifying speed of the whole high-density circulating water culture system is adjusted, namely the operation time of each water body purifying device of the circulating water culture system is adjusted, and the power consumption of the high-density circulating water culture system is reduced.
In this embodiment, when the recirculating aquaculture system is operated, the sewage containing floating metabolites collected by the floating matter collecting part 10 enters the floating matter filtering device through the floating matter discharging port 26 at the bottom of the aquaculture tank for filtering, and the sewage containing precipitated metabolites collected by the precipitate collecting part 20 enters the precipitate separating device through the precipitate discharging port 27 at the bottom of the aquaculture tank for filtering.
The utility model has the beneficial effects that:
1. according to the utility model, the overflow disc and the collecting cylinder are arranged, the ratio of the area of the overflow disc to the area of the culture pond is larger, and the distribution of the floating matter collecting holes on the collecting cylinder is denser.
2. According to the utility model, the drain pipe for floating metabolites and the drain pipe for precipitated metabolites are separately arranged, the water containing floating metabolites and the water containing precipitated metabolites respectively enter different purification devices, the former water enters the floating substance filtering device, and the latter water enters the precipitate separating device, so that different water treatment processes are respectively carried out according to the characteristics of the floating metabolites and the precipitated metabolites, thus the water treatment efficiency is higher, the burden of the subsequent water purification treatment devices is greatly reduced, and the power consumption of the high-density recirculating aquaculture system is reduced.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. A solid metabolite collection device for high density recirculating aquaculture which characterized in that: comprises that
The floating object collecting part comprises an overflow disc and a collecting cylinder, the collecting cylinder is arranged in the overflow disc, and the floating object collecting part is positioned at the upper part of the culture pond and is used for collecting floating metabolites of aquatic products in the high-density circulating culture water body;
the sediment collecting part comprises a collecting chassis and a supporting pipe, the collecting chassis is positioned at the center of the bottom of the culture pond, the supporting pipe is vertically connected to the center of the collecting chassis, and the sediment collecting part is used for collecting sediment metabolites of aquatic products in the high-density circulating culture water body; and
the floating object collecting part and the sediment collecting part are separately or mutually connected and arranged in the culture pond;
and the sewage containing the solid metabolites, which is respectively collected by the floating matter collecting part and the sediment collecting part, enters different water body purifying devices through respective sewage discharge pipelines.
2. The solid metabolite collecting device for high-density recirculating aquaculture of claim 1, wherein: the overflow disc comprises a circular bottom and a side wall which surrounds the bottom and has a certain height, a hollow boss is arranged at the bottom in the direction opposite to the extending direction of the side wall, a drain pipe is arranged at the bottom of the hollow boss, the collecting cylinder is hollow and cylindrical, the top of the collecting cylinder is closed, a plurality of floating object collecting holes are distributed on the side wall of the collecting cylinder, the lower part of the collecting cylinder is arranged in the hollow boss, and the region of the collecting cylinder, which is distributed with the floating object collecting holes, is positioned outside the hollow boss.
3. The solid metabolite collecting device for high-density recirculating aquaculture of claim 2, wherein: the overflow disc further comprises a cylindrical grid mesh enclosure, the grid mesh enclosure is approximately the same as the diameter of the cylindrical side wall and is sleeved on the cylindrical side wall, and the grid size of the grid mesh enclosure is smaller than the size of aquatic products in the aquaculture water body.
4. The solid metabolite collecting device for high-density circulating water aquaculture according to any one of claims 1 to 3, wherein: the center of collecting the chassis department is equipped with the drain, the stay tube connect perpendicularly in drain department, the collection chassis is in the periphery of drain is radial to be equipped with multiunit precipitate collecting hole.
5. The solid metabolite collecting device for high-density recirculating aquaculture of claim 4, wherein: the floater collecting part is connected with the wall of the culture pond, one or more sewage suction holes are formed in the bottom of the overflow disc and are respectively connected with one or more sewage suction pipes in the culture pond, the sediment collecting part is separately arranged with the floater collecting part, the collection chassis of the sediment collecting part is arranged at the center of the bottom of the culture pond, and the supporting pipe is vertically connected to the center of the collection chassis.
6. The solid metabolite collecting device for high-density recirculating aquaculture of claim 5, wherein: the bottom of the collecting chassis also comprises an adjusting piece which can adjust the opening size of the sediment collecting hole.
7. The solid metabolite collecting device for high-density recirculating aquaculture of claim 5, wherein: the upper part of the supporting tube is provided with a grid structure, and the grid size of the grid structure is larger than the size of the solid metabolite in the aquaculture water body and smaller than the size of the aquatic product in the aquaculture water body.
8. The solid metabolite collecting device for high-density recirculating aquaculture of claim 4, wherein: the collecting chassis of the sediment collecting part is positioned at the center of the bottom of the culture pond, the supporting pipe is vertically connected to the center of the collecting chassis, and the drainage pipe of the floating object collecting part is sleeved in the supporting pipe.
9. The solid metabolite collecting device for high-density recirculating aquaculture of claim 8, wherein: the bottom of the collecting chassis also comprises an adjusting piece which can adjust the opening size of the sediment collecting hole.
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| CN202121543614.6U CN215454789U (en) | 2021-07-07 | 2021-07-07 | Solid metabolite collecting device for high-density recirculating aquaculture |
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| CN202121543614.6U CN215454789U (en) | 2021-07-07 | 2021-07-07 | Solid metabolite collecting device for high-density recirculating aquaculture |
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