An inland seawater circulating aquaculture system suitable for tail water utilization new process

Abstract

The utility model relates to the technical field of water breeding system, especially a new technology suitable for tail water utilization inland seawater circulating water breeding system, including breeding pond, collection pipeline, mixing pool, backwater pipeline, control module and storage tank, the input end of collection pipeline is connected with breeding pond. The utility model has the advantages that: the mixing pool in the stirring subassembly carries out even stirring to liquid, and finally mixed solution is backflowed into the breeding pond under the driving of circulating pump through backwater pipeline, and the water quality detection sensor monitors the backflow water quality, guarantees the breeding safety. The process carries out step type purification to tail water through the treatment link of collection pipeline, sedimentation tank, filter tank, purification tank, and combines the proportioning adjustment of mixing pool and storage tank, makes the tail water that can be discharged originally reused in the breeding pond, forms the closed loop of "breeding - treatment - reuse", avoids the waste of water resources and the available component in tail water, and remarkably improves water resource utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture system technology, and in particular to an inland seawater recirculating aquaculture system suitable for a new process of tailwater utilization. Background Technology

[0002] The core of the inland seawater recirculating aquaculture system includes a culture pond, designed to simulate the natural habitat of marine life, providing a place for fish, shrimp, shellfish, and other marine organisms to inhabit and grow. The accompanying circulation pipelines and power equipment drive the flow of aquaculture water within the system. It also integrates a wastewater collection and treatment unit to purify the water containing uneaten feed, feces, and metabolic waste generated during the aquaculture process. Its purpose is to overcome the bottleneck of the lack of natural seawater aquaculture environments in inland areas, using precise artificial control to create stable and suitable living conditions for marine life, thus meeting the demand for fresh seafood in the inland market.

[0003] Currently, there are significant shortcomings in the wastewater treatment and utilization aspects of recirculating aquaculture systems in mainland China. While existing systems do purify wastewater to some extent, their primary goal is often simply to meet discharge standards, failing to establish a comprehensive system for deep recycling. Wastewater is discharged directly after simple filtration and purification, resulting in the waste of substantial amounts of usable water resources and nutrients that cannot be reintroduced into the aquaculture cycle, thus leading to water resource waste. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose an inland seawater recirculating aquaculture system suitable for a new tailwater utilization process, in order to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides an inland seawater recirculating aquaculture system suitable for a new wastewater utilization process. The system includes an aquaculture pond, a collection pipeline, a mixing pond, a return water pipeline, a control module, and a storage tank. The input end of the collection pipeline is connected to the aquaculture pond, and the output end of the return water pipeline is connected to the aquaculture pond. The output end of the storage tank is connected to the mixing pond via a pipeline. A sedimentation pond, a filtration pond, and a purification pond are sequentially arranged between the collection pipeline and the mixing pond, connected end-to-end by the pipeline. The output end of the collection pipeline is connected to the sedimentation pond, and the input end of the return water pipeline is connected to the purification pond. Circulation pumps are installed between the aquaculture pond and the collection pipeline, and between the aquaculture pond and the return water pipeline. Both circulation pumps are electrically connected to the control module.

[0007] Preferably, in any of the above solutions, a water quality sensor is installed between the return water pipeline and the aquaculture pond, and the water quality sensor is electrically connected to the control module.

[0008] Preferably, one side of the mixing tank is provided with a stirring assembly, which includes a motor and a stirring element connected to the motor output end via a coupling. The stirring element is located inside the mixing tank, the motor is electrically connected to the control module, and the motor is fixedly installed on the top of the mixing tank.

[0009] Preferably, in any of the above solutions, a metering pump is provided between the storage tank and the mixing tank, and the metering pump is electrically connected to the control module.

[0010] Preferably, the filter tank has a multi-layer filtration structure, which consists of a quartz sand layer, an activated carbon layer, and a ceramic filter media layer from top to bottom.

[0011] Preferably, in any of the above embodiments, a pH value detection sensor is installed inside the aquaculture pond, and the pH value detection sensor control module is electrically connected.

[0012] Preferably, of any of the above solutions, the storage tank is a high-concentration seawater storage tank, and the storage tank is equipped with a liquid level sensor, which is electrically connected to the control module.

[0013] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. Wastewater from the aquaculture pond enters a sedimentation tank through a collection pipeline for initial sedimentation to remove large particles of impurities. The wastewater then enters a filtration tank for further purification through a multi-layered filtration structure (quartz sand layer, activated carbon layer, and ceramic filter media layer). The purified wastewater then enters a purification tank for deep treatment before flowing into a mixing tank. Simultaneously, high-concentration seawater from a storage tank is injected into the mixing tank as needed via a metering pump to mix with the purified wastewater. The control module adjusts the operation of the metering pump based on feedback data from the pH sensor in the aquaculture pond to ensure the mixed solution is of suitable quality. The mixing components (motor and agitator) in the mixing tank uniformly stir the liquid. Finally, the mixed solution flows back into the aquaculture pond through a return water pipeline driven by a circulation pump. Water quality sensors monitor the quality of the returned water to ensure aquaculture safety. This process uses a treatment chain consisting of collection pipelines, sedimentation tanks, filtration tanks, and purification tanks to purify the effluent in stages. Combined with the ratio adjustment of mixing tanks and storage tanks, the effluent that might otherwise be discharged can be reused in aquaculture ponds, forming a closed loop of "aquaculture-treatment-reuse". This avoids the waste of water resources and usable components in the effluent, and significantly improves the water resource utilization rate.

[0014] 2. A pH sensor in the aquaculture pond monitors the water's pH value in real time and transmits the data to the control module. When the pH value deviates from the suitable range, the control module activates a metering pump to draw an appropriate amount of high-concentration seawater from the storage tank and inject it into the mixing tank, mixing it with the effluent treated by the sedimentation tank, filtration tank, and purification tank. The stirring assembly agitates the liquid in the mixing tank to ensure uniform composition. A water quality sensor on the return water pipeline performs secondary testing on the mixed solution, and the data is fed back to the control module. If the mixture does not meet the standards, the metering pump is further adjusted. The mixed solution that meets the standards is then transported to the aquaculture pond via a circulation pump to maintain a stable aquatic environment. Through the coordinated operation of the pH sensor, control module, and metering pump, dynamic and precise control of the mixed solution's water quality is achieved. The stirring assembly ensures water quality uniformity, and the water quality sensor provides final control. The synergistic effect of these components effectively avoids adverse effects on aquaculture organisms caused by water quality fluctuations, significantly improving the stability and controllability of the aquaculture environment. Attached Figure Description

[0015] Figure 1 This is a flowchart illustrating the process of this utility model.

[0016] In the diagram: 1-Aquaculture pond, 2-Collection pipeline, 3-Mixing pond, 4-Return water pipeline, 5-Sedimentation pond, 6-Filtration pond, 7-Purification pond, 8-Control module, 9-Storage tank, 10-Circulation pump, 11-Water quality detection sensor, 12-Agitation assembly, 13-Metering pump. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0018] like Figure 1 As shown, an inland seawater recirculating aquaculture system suitable for a new wastewater utilization process includes an aquaculture pond 1, a collection pipe 2, a mixing pond 3, a return water pipe 4, a control module 8, and a storage tank 9. The input end of the collection pipe 2 is connected to the aquaculture pond 1, and the output end of the return water pipe 4 is connected to the aquaculture pond 1. The output end of the storage tank 9 is connected to the mixing pond 3 via a pipe. Between the collection pipe 2 and the mixing pond 3, a sedimentation pond 5, a filtration pond 6, and a purification pond 7 are sequentially arranged and connected end to end via pipes. The output end of the collection pipe 2 is connected to the sedimentation pond 5, and the input end of the return water pipe 4 is connected to the purification pond 7. Circulation pumps 10 are installed between the aquaculture pond 1 and the collection pipe 2, and between the aquaculture pond 1 and the return water pipe 4. Both circulation pumps 10 are electrically connected to the control module 8.

[0019] As an optional technical solution of this utility model, a water quality detection sensor 11 is installed between the return water pipe 4 and the aquaculture pond 1. The water quality detection sensor 11 is electrically connected to the control module 8, which can perform real-time water quality detection on the water returning to the aquaculture pond 1 and transmit the detection data to the control module 8. The control module 8 can then determine whether the return water meets the aquaculture requirements. If it does not meet the standards, the relevant equipment can be adjusted in time to handle the problem, ensuring that the water entering the aquaculture pond 1 is always suitable for the survival of the aquaculture organisms and improving the safety of aquaculture.

[0020] As an optional technical solution of this utility model, a stirring assembly 12 is provided on one side of the mixing tank 3. The stirring assembly 12 includes a motor and a stirring element connected to the output end of the motor via a coupling. The stirring element is located inside the mixing tank 3. The motor is electrically connected to the control module 8. The motor is fixedly installed on the top of the mixing tank 3. Under the control of the control module 8, it can fully stir the tailwater and high-concentration seawater in the mixing tank 3, so that the two are mixed evenly, avoiding local fluctuations in water quality due to uneven mixing, ensuring the stability of the mixed water, and providing a good foundation for subsequent reuse in the aquaculture tank 1.

[0021] As an optional technical solution of this utility model, a metering pump 13 is provided between the storage tank 9 and the mixing tank 3. The metering pump 13 is electrically connected to the control module 8. The control module 8 can accurately control the operation of the metering pump 13 according to the water quality in the aquaculture tank 1, thereby precisely adjusting the amount of high-concentration seawater transported from the storage tank 9 to the mixing tank 3, so that the water ratio in the mixing tank 3 meets the aquaculture requirements, realizes precise water quality control, and improves the system's ability to control water quality.

[0022] As an optional technical solution of this utility model, the filter tank 6 is equipped with a multi-layer filtration structure. The multi-layer filtration structure consists of a quartz sand layer, an activated carbon layer, and a ceramic filter media layer from top to bottom. It can perform step-by-step filtration of the effluent. The quartz sand layer can remove larger particulate impurities, the activated carbon layer can adsorb organic matter and odors in the water, and the ceramic filter media layer can further filter fine impurities. Through multi-layer filtration, the purification effect of the effluent is significantly improved, providing a high-quality base water for subsequent mixing and reuse.

[0023] As an optional technical solution of this utility model, a pH value detection sensor is installed inside the aquaculture pond 1. The pH value detection sensor control module 8 is electrically connected to the sensor and can monitor the pH value of the water in the aquaculture pond 1 in real time and feed the data back to the control module 8 in a timely manner. The control module 8 can determine whether the acidity or alkalinity of the water is suitable based on the data, and then adjust other equipment accordingly to ensure that the pH value of the water in the aquaculture pond 1 is always within the range suitable for the growth of aquatic organisms, thus ensuring the healthy growth of aquatic organisms.

[0024] As an optional technical solution of this utility model, the storage tank 9 is a high-concentration seawater storage tank. The storage tank 9 is equipped with a liquid level sensor, which is electrically connected to the control module 8. The liquid level sensor can monitor the liquid level of the high-concentration seawater in the storage tank 9 in real time and transmit the information to the control module 8. When the liquid level is lower than the set value, the control module 8 can promptly send a signal to remind the user to replenish the high-concentration seawater, so as to avoid the water ratio of the mixing tank 3 being affected by insufficient seawater in the storage tank 9 and ensure the continuous and stable operation of the system.

[0025] A new inland seawater recirculating aquaculture system suitable for wastewater utilization works as follows: 1): The effluent from the aquaculture pond 1 enters the sedimentation tank 5 through the collection pipe 2 for preliminary sedimentation to remove large particulate impurities; then the effluent enters the filtration tank 6 and is further purified through a multi-layer filtration structure (quartz sand layer, activated carbon layer, ceramic filter media layer).

[0026] 2): The purified effluent enters the purification tank 7 for deep treatment and then flows into the mixing tank 3; at the same time, the high-concentration seawater in the storage tank 9 is injected into the mixing tank 3 as needed through the metering pump 13 to mix with the purified effluent.

[0027] 3): The control module 8 adjusts the operating status of the metering pump 13 according to the feedback data of the pH value detection sensor in the breeding tank 1 to ensure that the water quality of the mixed liquid is suitable; the stirring component 12 (motor and stirring parts) in the mixing tank 3 stirs the liquid evenly, and finally the mixed liquid flows back into the breeding tank 1 through the return water pipe 4 under the drive of the circulation pump 10.

[0028] In summary, this inland seawater recirculating aquaculture system, applicable to a new wastewater utilization process, involves the following steps: Wastewater from aquaculture pond 1 enters sedimentation pond 5 via collection pipe 2 for initial sedimentation, removing large particles; subsequently, the wastewater enters filtration pond 6 for further purification through a multi-layer filtration structure (quartz sand layer, activated carbon layer, and ceramic filter media layer); the purified wastewater then enters purification pond 7 for deep treatment before flowing into mixing pond 3; simultaneously, high-concentration seawater from storage tank 9 is injected into mixing pond 3 as needed via metering pump 13 to mix with the purified wastewater; control module 8 adjusts the operation of metering pump 13 based on feedback data from pH sensor in aquaculture pond 1 to ensure the mixed solution is of suitable quality; stirring components 12 (motor and stirring parts) in mixing pond 3 uniformly stir the liquid; finally, the mixed solution flows back into aquaculture pond 1 via return water pipe 4 driven by circulation pump 10; water quality sensor 11 monitors the quality of the returned water to ensure aquaculture safety. This process uses a treatment chain consisting of collection pipeline 2, sedimentation tank 5, filtration tank 6, and purification tank 7 to purify the effluent in stages. Combined with the ratio adjustment of mixing tank 3 and storage tank 9, the effluent that might otherwise be discharged can be reused in aquaculture tank 1, forming a closed loop of "aquaculture-treatment-reuse". This avoids the waste of water resources and usable components in the effluent, and significantly improves the water resource utilization rate. The pH value detection sensor in aquaculture tank 1 monitors the pH value of the water in real time and transmits the data to control module 8. When the pH value deviates from the appropriate range, control module 8 starts metering pump 13 to draw an appropriate amount of high-concentration seawater from storage tank 9 and inject it into mixing tank 3 to mix with the effluent treated by sedimentation tank 5, filtration tank 6, and purification tank 7. Stirring component 12 stirs the liquid in mixing tank 3 to ensure uniform composition. Water quality detection sensor 11 on return water pipeline 4 performs secondary detection on the mixed liquid and feeds the data back to control module 8. If the standard is not met, metering pump 13 is further adjusted. The mixed liquid that meets the standard is transported to aquaculture tank 1 through circulation pump 10 to maintain the stability of the aquaculture water environment. Through the coordinated operation of the pH sensor, control module 8, and metering pump 13, dynamic and precise control of the mixed solution water quality is achieved; the stirring component 12 ensures the uniformity of water quality, and the water quality sensor 11 provides the final check. With the synergistic effect of all components, the adverse effects of water quality fluctuations on aquaculture organisms are effectively avoided, and the stability and controllability of the aquaculture environment are significantly improved.

Claims

1. An inland seawater recirculating aquaculture system suitable for a new wastewater utilization process, characterized in that: The system includes a breeding pond (1), a collection pipeline (2), a mixing pond (3), a return water pipeline (4), a control module (8), and a storage tank (9). The input end of the collection pipeline (2) is connected to the breeding pond (1), the output end of the return water pipeline (4) is connected to the breeding pond (1), and the output end of the storage tank (9) is connected to the mixing pond (3) through a pipeline. Between the collection pipeline (2) and the mixing pond (3), there are a sedimentation pond (5), a filtration pond (6), and a purification pond (7) connected end to end by a pipeline. The output end of the collection pipeline (2) is connected to the sedimentation pond (5), and the input end of the return water pipeline (4) is connected to the purification pond (7). A circulation pump (10) is installed between the breeding pond (1) and the collection pipeline (2) and between the breeding pond (1) and the return water pipeline (4). Both circulation pumps (10) are electrically connected to the control module (8).

2. The inland seawater recirculating aquaculture system suitable for a new wastewater utilization process according to claim 1, characterized in that: A water quality sensor (11) is installed between the return water pipeline (4) and the aquaculture pond (1), and the water quality sensor (11) is electrically connected to the control module (8).

3. The inland seawater recirculating aquaculture system suitable for a new wastewater utilization process according to claim 2, characterized in that: A stirring assembly (12) is provided on one side of the mixing tank (3). The stirring assembly (12) includes a motor and a stirring element connected to the output end of the motor via a coupling. The stirring element is located inside the mixing tank (3). The motor is electrically connected to the control module (8). The motor is fixedly installed on the top of the mixing tank (3).

4. The inland seawater recirculating aquaculture system suitable for a new tailwater utilization process according to claim 3, characterized in that: A metering pump (13) is provided between the storage tank (9) and the mixing tank (3), and the metering pump (13) is electrically connected to the control module (8).

5. The inland seawater recirculating aquaculture system suitable for a new tailwater utilization process according to claim 4, characterized in that: The filter pool (6) is equipped with a multi-layer filtration structure, which consists of a quartz sand layer, an activated carbon layer and a ceramic filter media layer from top to bottom.

6. The inland seawater recirculating aquaculture system suitable for a new tailwater utilization process according to claim 5, characterized in that: The aquaculture pond (1) is equipped with a pH value detection sensor, which is electrically connected to the pH value detection sensor control module (8).

7. The inland seawater recirculating aquaculture system suitable for a new wastewater utilization process according to claim 6, characterized in that: The storage tank (9) is a high-concentration seawater storage tank. A liquid level sensor is installed on the storage tank (9), and the liquid level sensor is electrically connected to the control module (8).

Images