174 results about "Recirculating aquaculture system" patented technology

The present disclosure provides a recirculation aquaculture system and method. The system includes a fish pond and a fiber turntable filtering system. The fiber turntable filtering system can implement can remove large particles in aquaculture water and regularly harvest microalgae, water quality after treatment reaches a fishery aquaculture standard, and 97% of the aquaculture water can be directly recycled. In the present disclosure, during in-situ culture of microalgae and fish, microalgae can convert CO2 exhaled by fish and nutrients such as nitrogen and phosphorus in the aquaculture water into substances of algae cells, such as proteins, polysaccharides, vitamins, and lipids, and release oxygen, so as to quickly improve quality of the aquaculture water; in-situ culture of the microalgae and the fish gives play to the advantages of high photosynthetic efficiency of the microalgae, and the fast-growing microalgae provide a suitable growth environment for the fish.

The present invention discloses a strain of Stutzerimonas kunmingensis and its application in water denitrification, relating to the field of biotechnology. The Stutzerimonas kunmingensis was deposited in the General Microbiology Center (CGMCC) of the China Culture Collection of Microorganisms on April 24, 2024, with a deposit address of No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing, and a deposit number of CGMCCNO.30427. The present invention isolated and obtained Stutzerimonas kunmingensis 9‑4 from a water sample of a crucian carp recirculating aquaculture system. The strain has a good removal effect on nitrate nitrogen, nitrite nitrogen and ammonia nitrogen in the water environment. At the same time, adding hematite under light conditions can significantly improve the removal rate of nitrate nitrogen, nitrite nitrogen and ammonia nitrogen by the Stutzerimonas kunmingensis, which can be applied to the removal of nitrate nitrogen, nitrite nitrogen and ammonia nitrogen in aquaculture water environment and aquaculture tail water.

The utility model discloses a multifunctional pond recirculating aquaculture system capable of pushing water to make flow, which comprises a purification tank and a control device, the tank wall of the purification tank is provided with a water inlet and a water outlet, the water inlet is connected with a water pumping pipeline provided with a circulating water pump, and the water inlet end of the water pumping pipeline extends into an aquaculture pond; the purification tank is connected with an insertion type nano aeration device, and a foam discharging device is arranged at the top of the purification tank; the water outlet is connected with a water outlet pipeline, the water outlet pipeline is provided with a water-pushing flow-making aeration oxygenation device located above the culture pond, and the position height of the water-pushing flow-making aeration oxygenation device is lower than the position height of the purification tank. According to the utility model, various water treatment devices are integrated into the purification tank in an integrated and centralized manner through reasonable layout, so that the overall space distribution size of a culture system is reduced, water pushing and flow making for aeration and oxygenation can be automatically carried out through the gravity action, the culture cost is greatly reduced, and the oxygenation effect and the medicine throwing diffusivity can be improved through water pushing and flow making.

The present invention relates to an additive that comprises compounds of plant and mineral extracts, useful in recirculating aquaculture system that will significantly improve efficiency of the biofilter used in said systems, thus reducing the levels of toxic chemicals such as ammonium and nitrite. Furthermore, this additive will also reduce oxygen consumption and provide better overall water quality conditions. This implies an improvement in the efficiency of these systems, thus achieving farming of different fish species with lower mortality, better feed conversion, and growth rate.

Systems and methods for intensive recirculating aquaculture are provided herein. An example system includes water sourced from a first segment of a saline aquifer, a recirculating aquaculture system receiving the sourced water and producing discharge water, and a water discharge point located within a second segment of the saline aquifer disposed below the first segment of the saline aquifer.

The invention discloses a movable recirculating aquaculture system and method based on digital twinning. The system comprises a monitoring system used for monitoring aquaculture water body data and aquaculture equipment data and obtaining fish school images; the processing system is connected with the monitoring system and used for receiving and analyzing the aquaculture water body data, the aquaculture equipment data and the fish school images and sending out a control instruction according to an analysis result; the control system is connected with the processing system and used for receiving the control instruction and adjusting related equipment according to the control instruction; and the data storage system is connected with the processing system and is used for storing the aquaculture water body data, the aquaculture equipment data, the fish school images and the analysis results. Data acquisition and real-time processing can be efficiently carried out, the optimal fish school growth condition is analyzed in combination with the water quality environment, and a decision basis is provided for farmers.

The present invention provides a sunlight factory recirculating aquaculture system and method, belonging to the technical field of aquaculture. The sunlight factory recirculating aquaculture system includes a fish pond and a fiber rotary disk filtration system; the fiber rotary disk filtration system can remove large-particle-size particulate matters in the culture water and regularly harvest microalgae, and the treated water quality meets the fishery culture standard, and 97% of the culture water can be directly recycled. In the present invention, during the in-situ cultivation of microalgae and fish, the microalgae can convert nutrients such as CO2 exhaled by the fish and nitrogen and phosphorus in the culture water body into substances of the microalgae cells themselves, such as proteins, polysaccharides, vitamins, and lipids, and release oxygen, rapidly improving the culture water quality; the in-situ cultivation of microalgae and fish gives play to the advantage of the high photosynthetic efficiency of the microalgae, and the rapidly growing microalgae provides a suitable growth environment for the fish. The sunlight factory recirculating aquaculture system and method of the present invention can achieve high-density, high-stability, and low-energy-consumption recirculating aquaculture.

The technical scheme of the utility model discloses a land-based canvas pool litopenaeus vannamei recirculating aquaculture system which comprises an aquaculture pool, and the edge of the bottom of the aquaculture pool inclines towards the center so as to enable aquaculture water and impurities to converge towards the center to a fish closestool. The settling pond is connected with an outlet of the fish closestool through a drainage pipe, and the fluidized bed is connected with the settling pond through a water guide pipe arranged at the water outlet channel; and the microfiltration part is connected with the fluidized bed and the culture pond through a water conduit and a water return pipe respectively. The bottom of the culture pond is inclined, water is drained from the center of the culture pond and enters the culture pond tangentially, so that vortexes are formed in the culture pond, and residual feed, excrement and the like are quickly concentrated towards the water outlet in the center of the bottom of the culture pond under the action of tangential force of water flow. Through a plurality of water inlet pipes and water outlet pipes, the effect of water quality circulation of the culture pond, the sedimentation pond, the fluidized bed biological filter and the rotary drum type micro-filter is achieved, and the problems that suspended solids and ammonia nitrogen are prone to being generated in a traditional prawn culture technology and the nitrite concentration is continuously increased are solved.

The invention provides a seawater circulating aquaculture purification method and system based on BDD electrocatalytic oxidation, and belongs to the technical field of water treatment. The seawater circulating aquaculture purification method provided by the invention is high in feasibility, economical and practical, simple in system equipment, small in occupied area and convenient to use. According to the method provided by the invention, BDD electrocatalytic oxidation is adopted as a core process, the process flow is short, the operation is simple, the occupied area is small, and active chlorine generated by BDD electrocatalytic oxidation is fully utilized in a mixing manner, so that residual chlorine is removed with low energy consumption, and the breeding safety is ensured. The corresponding number of reactors can be started in time according to different circulating water amounts and water qualities, and the treatment effect is stable. Upgrading of an industrial recirculating aquaculture technology is promoted, the aquaculture density can be effectively improved, and meanwhile pollutants discharged by a seawater recirculating aquaculture system are remarkably reduced.

The invention discloses a multifunctional water-pushing flow-making pond recirculating aquaculture system and a using method.The multifunctional water-pushing flow-making pond recirculating aquaculture system comprises a purification tank and a control device, a water inlet and a water outlet are formed in the tank wall of the purification tank, and the water inlet is connected with a water pumping pipeline provided with a circulating water pump; the water inlet end of the water pumping pipeline extends into the culture pond; the purification tank is connected with an insertion type nano aeration device, and a foam discharging device is arranged at the top of the purification tank; the water outlet is connected with a water outlet pipeline, the water outlet pipeline is provided with a water-pushing flow-making aeration oxygenation device located above the culture pond, and the position height of the water-pushing flow-making aeration oxygenation device is lower than the position height of the purification tank. Various water treatment devices are integrated into the purification tank in a centralized mode through reasonable layout, the overall space distribution size of the breeding system is reduced, water pushing and flow making for aeration and oxygenation can be automatically achieved through the gravity effect, the breeding cost is greatly reduced, and the oxygenation effect and the medicine throwing diffusivity can be improved through water pushing and flow making.

An aquaculture system, flow-through partial use and particularly a recirculating aquaculture system, for grading and harvesting aquatic species on a continuous basis. The apparatus has a tank (1) for farming the species and a fixed, apertured screen (7) and a movable apertured screen (8a, 8b) adapted to sweep through the water towards or away from the fixed screen, defining two or more enclosures of variable size in which the aquatic species may be corralled based on their size. The apparatus provides a means of utilising the full volume of the tank continuously thereby improving efficiency, utilisation and improving welfare of the farmed species.

The invention discloses an industrial intelligent aquaculture system, method, device, medium and product, and relates to the technical field of recirculating aquaculture, the system comprises a recirculating aquaculture infrastructure, a programmable logic controller (PLC), a data transmission unit (DTU), a network video recorder and a server; a water quality sensor group, an environment sensor group, a working condition sensor group, an underwater camera and an overwater camera are arranged, field data of an aquaculture system are acquired through data acquisition equipment, the acquired data are sent to a PLC, the PLC receives the data and then sends the data to a server through a DTU, and the server determines a control decision, such as whether the operation state of each infrastructure is changed or not. The operation states of the devices and how to change are sent to the PLC through the DTU, and the PLC controls the operation states of the devices, so that the operation states of the devices are automatically controlled, and the breeding efficiency of the recirculating aquaculture system is improved.

The invention provides a freshwater fish recirculating aquaculture system and method, and relates to the technical field of aquaculture. The culture system comprises a culture pond, a microfilter, a biological pond, a water storage pond, aeration equipment, disinfection equipment and oxygen production equipment. The freshwater fish recirculating aquaculture system has the advantages that the heights of the culture pond, the microstrainer, the biological pond and the water storage pond of the culture system are sequentially reduced, the culture pond, the microstrainer, the biological pond and the water storage pond are sequentially connected through the water return pipe, and the bottom of the water storage pond is connected with the water inlet pipe through the circulating water pump. Therefore, the running energy consumption of the whole system can be reduced, and the breeding cost is reduced; aeration equipment is arranged in the water storage tank, oxygen generation equipment connected with the aeration equipment can pump high-concentration oxygen into the water storage tank to improve the concentration of dissolved oxygen in water, water is injected into the culture pond at a certain incident angle through water outlet holes in a water inlet branch pipe in the water storage tank, a stable flow field is formed in the water in the culture pond, and the culture density of the culture system is improved.

The utility model provides a babylonia sand-free recirculating aquaculture system which comprises a self-pollution-discharge sand-free aquaculture pond and a low-level water treatment system, aquaculture tail water of the self-pollution-discharge sand-free aquaculture pond automatically flows into the low-level water treatment system to be subjected to particle three-level purification, and then the purified tail water is pumped into the self-pollution-discharge sand-free aquaculture pond through a water pump; babylonia breeding nests for allowing Babylonia to inhabit are arranged in the self-pollution-discharge sand-free breeding ponds, and automatic pollution discharge devices are installed at the bottoms of the self-pollution-discharge sand-free breeding ponds. The low-level water treatment system comprises a particulate matter three-stage removal device and a pipeline type ultraviolet sterilization device which are connected in sequence, and the particulate matter three-stage removal device is composed of a vertical flow sedimentation tank, a foam separation tank and a sand filter tank which are connected in sequence. The utility model effectively solves the problems that the traditional sand flowing water culture is high in water consumption, more in sand matrix dirt accumulation, easy in disease outbreak, incapable of carrying out industrial culture and the like, and has the advantages of high water-saving efficiency, good dirt collecting and discharging effects, controllable culture environment, few diseases, high culture efficiency and the like.

A module type aquaculture tank having a stepwise recirculating aquaculture system according to the present disclosure may include a main fish breeding water tank including first, second, third, and fourth edges and having a square plane, an intermediate fish breeding water tank disposed adjacent to the first edge of the main fish breeding water tank, a plurality of recirculating filtration tanks arranged adjacent to each other along the third edge opposite to the first edge of the main fish breeding water tank, and an air lifting Venturi apparatus including a plurality of Venturi pipes arranged along the edges of an inside of the main fish breeding water tank and an air guide obliquely extending from an upper end of each of the plurality of Venturi pipes upward in an air spray direction.

The invention relates to the technical field of aquaculture, and discloses a factory-like circulating aquaculture system and method for aquaculture, and the system comprises one or more aquaculture units, a biological filtration unit and a water circulation filtration unit. Water in the culture ponds in the culture units flows into the microstrainers through independent water outlet pipes at the bottoms of the culture ponds to be primarily filtered, so that suspended particles such as residual feed and excrement in the water are effectively removed (discharged into the sewage pond); particulate matters such as residual feeds and excrement in water bodies are quickly pressed into the microfilters by the aid of high pressure of the water bodies during drainage at the bottoms of the culture ponds, and accordingly the removal efficiency of suspended particles in the water bodies of the culture ponds can be greatly improved; harmful substances such as ammonia nitrogen and nitrite in the water body are removed, the water quality is further improved, and the problems that an existing system is low in suspended particulate matter treatment efficiency, poor in biochemical treatment effect, high in cost, poor in circulation balance and the like are effectively solved.

An aquaculture system, flow-through partial use and particularly a recirculating aquaculture system, for treating an aqueous stream for the farming of aquatic organisms having a containment for retaining a rotating body of water and a drain (1) for selective opening and closing to allow periodic removal of larger solid waste, dead organisms. The drain includes an assembly having an outlet aperture in the containment which may be selectively opened and closed or moved into and out of the containment thereby to enable expeditious removal of larger solids from the containment.

The application provides a circulating aquaculture system and method, which comprises a high-temperature breeding unit, a low-temperature breeding unit and a circulating heat exchange unit. The circulating heat exchange unit comprises a first heat exchange device and a second heat exchange device. The first heat exchange device is provided with a first heat exchange pipeline, and the second heat exchange device is provided with a second heat exchange pipeline. The first heat exchange pipeline and the second heat exchange pipeline circulate heat exchange medium. The first heat exchange device is connected with the high-temperature breeding unit, so that the first waste liquid in the high-temperature breeding unit exchanges heat with the heat exchange medium. The second heat exchange device is connected with the low-temperature breeding unit, so that the second waste liquid in the low-temperature breeding unit exchanges heat with the heat exchange medium in the second heat exchange pipeline. The application can ensure the breeding temperature in different breeding units, improve the heat utilization rate, and avoid the environmental pollution caused by directly discharging waste liquid by recycling waste water.

This invention belongs to the field of aquaculture equipment and discloses a recirculating aquaculture system for indoor multi-layered culture of freshwater fish germplasm samples. The system includes a stainless steel culture rack, glass culture tanks, a temperature control system, a recirculating water purification system, an aeration system, and electrical and auxiliary materials. Through a three-layered culture structure design, combined with culture tanks of varying sizes and a precise temperature control module, it solves the problem of aquaculture with diverse sizes of freshwater fish germplasm samples and large differences in suitable water temperatures. The system has nine small glass culture tanks in the upper layer and three large glass culture tanks in each of the middle and lower layers, equipped with an external temperature control component and an internal heating rod, achieving full-coverage water temperature regulation from 10℃ to above 30℃. The recirculating water system ensures stable water quality through the synergistic effect of a filter tank, a booster pump, an ultraviolet sterilizer, and various filter media. Meanwhile, the lower culture tanks are equipped with an internal circulation filter to enhance local water purification, meeting the diverse aquaculture needs from small fry to large broodstock.

This invention relates to a filtration device for recirculating aquaculture systems, belonging to the field of aquaculture technology. The filtration device includes a water tank, a connecting plate fixedly connected to one side of the water tank, a filter assembly connected to the water tank and on one side of the top of the connecting plate, and a waste discharge assembly connected to the water tank and on the top of the connecting plate. An oxygen supply assembly is located at the top of the water tank. By using the filter assembly, the first filter tube can be backwashed using a valve, thereby extending the service life of the first filter tube, avoiding frequent replacement, and reducing maintenance costs. The waste discharge assembly discharges the filtered impurities into and onto a discharge plate, effectively concentrating the impurities. The oxygen supply assembly, under the elastic force of a second spring, allows a scraper to clean the inner wall of the water tank, improving the cleaning effect.

The utility model relates to the technical field of leech culture, and discloses a novel leech recirculating aquaculture system which comprises a culture pond, a microfilter used for reducing suspended solids in a water body and reducing the concentration of the suspended solids is arranged on one side of the culture pond, a water storage pond is arranged on one side of the microfilter, and a water pump in the water storage pond pumps water into a decoloration adsorption tank; a pipeline ultraviolet sterilization device for ultraviolet sterilization is arranged on one side of the adsorption tank, a fourth water outlet is formed in the outer wall, away from the water inlet, of the pipeline ultraviolet sterilization device, and a nitrification biological filter tower used for reducing the concentration of ammonia nitrogen and nitrite in water flow is arranged on one side of the pipeline ultraviolet sterilization device. The leech culture device can filter, decolorize, sterilize and biologically filter a red water body with residual food residues (generally pig blood) in water flow, so that the concentration of ammonia nitrogen and nitrite in the water body is reduced, the transparency of the water body is improved, the oxygen concentration of the water body is increased, and the carbon dioxide concentration of the water body is reduced, thereby reducing the risk of leech culture. And the survival rate of leech culture is improved.

The invention provides a novel freshwater fish factory recirculating aquaculture system, which comprises a culture pond, a vertical flow precipitator, a microfilter pond, a biochemical air floatation pond, a sand cylinder filter, a nano denitrification system and a multi-stage air stripping system, the culture pond is respectively connected with the vertical flow precipitator and the microfilter pond, the vertical flow precipitator is connected with the microfilter pond, the biochemical air floatation pond is connected with the sand cylinder filter, the nano denitrification system is connected with the biochemical air floatation pond, and the multi-stage air stripping system is connected with the sand cylinder filter. The biochemical air floatation tank is connected with the microfilter tank through a pipeline, the biochemical air floatation tank comprises an air floatation bin, a pump bin, a biochemical bin and a denitrification bin, and the pump bin is respectively connected with the sand cylinder filter, the nano denitrification system and the multi-stage air stripping system through pipelines; and circulating pumps are arranged on pipelines for connecting the pump bin with the sand cylinder filter, the nano denitrification system and the multi-stage air stripping system. According to the invention, the multi-stage cooperative treatment system is constructed and the denitrification system is introduced, so that the total nitrogen removal rate of the culture system is increased to 96%, which is increased by 140% compared with that of the traditional system, the water supplementing amount of the system is reduced, the daily water supplementing amount is reduced to less than 3%, and the water saving rate of the total amount of circulating water exceeds 70%.

The application relates to the technical field of aquaculture, and discloses a circulating water aquaculture system which comprises an aquaculture area, a filtering area and an adjusting area arranged in sequence; the discharged water in the aquaculture area is discharged into the filtering area for filtration, the filtered water in the filtering area is discharged into the adjusting area, ecological bacteria algae are added into the adjusting area, and the water in the adjusting area is discharged into the aquaculture area after being treated by the ecological bacteria algae. The application can recycle the water and reduce the aquaculture cost.

The invention provides a low-carbon zero-emission factory recirculating aquaculture system, which comprises a processor and a memory, and the processor calls and executes a computer program in the memory, so that a management server determines a first aquaculture area and obtains first real-time aquaculture data of the first aquaculture area; evaluating according to the first real-time breeding data to obtain a breeding difficulty level, determining a first number of second breeding areas according to the breeding difficulty level, and controlling the first breeding area and each second breeding area to be networked based on Internet of Things equipment to obtain breeding data of each second breeding area; the first breeding area uses an environment regulation and control model to predict and calculate the first real-time breeding data and the breeding data to obtain a first environment regulation and control parameter set, and multiple environment parameters in the first breeding area are adjusted according to the first environment regulation and control parameter set. According to the invention, which second breeding areas should be networked can be determined according to the actual situation of the first breeding area.

The invention relates to an integrated water treatment filter for a recirculating aquaculture system and a filtering method, and belongs to the field of water treatment. The device comprises a biological filtration unit and a physical filtration unit, and is structurally characterized in that the physical filtration unit is located in the biological filtration unit, and the physical filtration unit is located at the upper end of the biological filtration unit; the physical filtering unit is located in the biological filtering unit, and the physical filtering unit is located at the upper end of the biological filtering unit; the physical filtering unit comprises a bead intercepting net, a filtering barrel, a back washing spraying device and floating bead filler, the bead intercepting net is arranged at the top of the filtering barrel, the back washing spraying device is located in the filtering barrel, the floating bead filler is arranged in the filtering barrel, and the back washing spraying device is located in the filtering barrel. The biological filtration unit comprises a barrel body, an aeration device and a high-specific-surface-area filler, the filtration barrel, the aeration device and the high-specific-surface-area filler are all located in the barrel body, and the aeration device is located at the bottom of the barrel body.

An integrated biofilter for a re-circulating aquaculture system is provided. The biofilter may include a moving bed biofilm reactor (MBBR) with biomedia elements configured to support bacteria growth and nitrification of the wastewater and an MBBR output configured to output biomass generated by the bacteria. The biofilter may also comprise a periphyton biofilter configured to introduce oxygen into the wastewater, and a halophyte biofilter comprising a plurality of plants. The halophyte biofilter configured to capture nutrients in the wastewater to generate edible plant mass.

A recirculating aquaculture system for producing aquatic species suitable for human consumption includes: a culture tank providing habitat for a selected aquatic species; a plurality of subsystems in communication with the culture tank and configured to recirculate and treat water within the system, the plurality of subsystems comprising: a solids control subsystem for removing particulates in the water, a recirculating pump subsystem for recirculating water within the system, an aeration / stripping subsystem for contacting air and water to strip carbon dioxide out of the water and into the air, a pH control subsystem to maintain the alkalinity of the water, an oxygenation subsystem for providing oxygen to the water, and an optional ozonation subsystem for providing ozone to the water; and wherein the water comprises iron cations at a concentration of at least about 0.1 ppm. Methods of maintaining the recirculating aquaculture system are also described.

This invention provides a coupled recirculating aquaculture system and method. The coupled recirculating aquaculture system includes: an aquaculture pond for aquaculture, with a central suspended solids drain pipe and a water-pushing device inside; a denitrification unit whose inlet is connected to the central suspended solids drain pipe and whose outlet is connected to the water-pushing device, the denitrification unit denitrifies the water and returns the denitrified water to the aquaculture pond via the water-pushing device; and a carbon-nitrogen ratio coordination unit connected between the water-pushing device and the denitrification unit, which adjusts the content of growth elements in the water entering the aquaculture pond according to changes in the growth elements required by the aquatic products, and simultaneously sends the water discharged from the denitrification unit into the aquaculture pond via the water-pushing device. The denitrification unit effectively removes ammonia nitrogen from the water in the aquaculture pond, ensuring the lifespan of the aquatic products and reducing the area of ​​the coupled recirculating aquaculture system.

The invention belongs to the technical field of fishery breeding, particularly relates to a retired oil and gas platform fishery function transfer modular detachable circulating breeding system, and aims to solve the problems that when existing breeding equipment is used, due to the fact that semi-arc-shaped plates are in a fixed connection state, if one semi-arc-shaped plate is damaged during use, the whole body needs to be replaced, and the cost is low. The situation of waste of resources and the like is easily caused, so that the use has relatively strong limitation; comprising a bottom plate, and the bottom plate is connected with a side moving semi-arc-shaped plate through a dismounting and fixing translation mechanism; a rotating bearing is mounted on the bottom plate, a rotating shaft is mounted on the rotating bearing, one end of the rotating shaft is connected with the locking anti-contact unit, and the other end of the rotating shaft is connected with the rotating square moving mechanism; and by disassembling and fixing the translation mechanism, the side-moving semi-arc-shaped plates are prevented from shaking, the installation efficiency and the overall connection stability of the four side-moving semi-arc-shaped plates are improved, and the limitation of the device in use is reduced.

An aquaculture system with a containment having a water inlet and side walls and a drain 1 in its floor 2. The drain has an assembly 3 with an orifice 8 that may selectively allow passage of larger so