Filtering and separating system for mariculture tail water treatment

Abstract

The invention discloses a filtration and separation system for mariculture tail water treatment, and relates to the technical field of tail water treatment.The filtration and separation system comprises a treatment circulation water channel, a sedimentation tank is installed in the side of the treatment circulation water channel, the side of the sedimentation tank is communicated with a liquid inlet end, and the side end of the sedimentation tank is communicated with a seawater desalination pretreater through a liquid drainage guide pipe; a pH detector is installed at the side end of the seawater desalination preprocessor, the side end of the pH detector is communicated with a dynamic filtering and adjusting assembly through a treatment pipe, under the cooperation of the dynamic filtering and adjusting assembly, pollutants in water are effectively removed, the treatment strategy can be automatically adjusted according to the water quality change, the treatment efficiency and the water quality safety are improved, and the water quality is guaranteed. According to changes of seasons, culture varieties and management practices, water quality treatment is adjusted dynamically, and the influence of high salinity and osmotic pressure in seawater on a filtering membrane material is reduced, so that in the water treatment process, the pH value is effectively treated and controlled, and the service life of a plurality of groups of fillable filtering membranes is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of tail water treatment, in particular to a filtering and separation system for treating seawater aquaculture tail water. Background Art

[0002] Aquaculture tailwater contains a large amount of feces and uneaten feed of aquaculture organisms. Aquaculture tailwater is discharged into the environment, endangering the surrounding ecology. The treatment of aquaculture tailwater mainly exists in the closed-loop aquaculture model. The core of its process is based on the transamination of biological contact oxidation, using nitrifying bacteria to convert ammonia nitrogen and nitrite nitrogen into nitrate nitrogen under aerobic conditions. The efficiency of water treatment is extremely related to the material, properties of the nitrifying bacteria attachment base, and the species and density of the attached bacteria. In some aquaculture systems with better tailwater treatment technology, the reuse rate of tailwater can reach more than 90%.

[0003] However, in the existing technology, during the treatment of marine aquaculture tail water, the water quality is easily affected by the season, aquaculture type and management practice, and has a certain volatility. The traditional filtration separation technology is difficult to flexibly adapt to the changes in water quality, resulting in the filtration efficiency being unable to meet the operation requirements. In addition, the operating environment is in seawater, and the high salinity and osmotic pressure in seawater can easily affect the filter membrane material. Further, during long-term use, it may accelerate the scaling and pollution of the membrane, resulting in reduced filtration efficiency and increased maintenance costs. Therefore, it is necessary to propose a filtration separation system for marine aquaculture tail water treatment. Summary of the invention

[0004] The purpose of the present invention is to provide a filtration and separation system for treating seawater aquaculture tail water, so as to solve the problem proposed in the above-mentioned background technology that during the treatment of seawater aquaculture tail water, the water quality is easily affected by the season, aquaculture type and management practice, and has a certain volatility, and the traditional filtration and separation technology is difficult to flexibly adapt to the changes in water quality, resulting in the filtration efficiency being unable to meet the operational requirements. In addition, the operating environment is in seawater, and the high salinity and osmotic pressure in seawater are easy to affect the filter membrane material. Furthermore, during long-term use, it may accelerate the scaling and pollution of the membrane, resulting in reduced filtration efficiency and increased maintenance costs.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filtering and separation system for treating tail water of seawater aquaculture, comprising a treatment circulation waterway, a sedimentation tank is installed inside the side of the treatment circulation waterway, a liquid inlet is connected to the side of the sedimentation tank, a side end of the sedimentation tank is connected to a seawater desalination preprocessor through a liquid discharge conduit, a pH detector is installed on the side end of the seawater desalination preprocessor, and a dynamic filtration adjustment component is connected to the side end of the pH detector through a treatment pipe; The dynamic filtration adjustment component includes a top mounting frame, which is mounted on the top of the treatment flow waterway, a telescopic adjustment rod is mounted on the bottom end of the top mounting frame, a mounting classification frame plate is fastened to the bottom of the telescopic adjustment rod, a plurality of groups of fillable filter membranes are mounted on the bottom of the mounting classification frame plate, a detection frame is sealingly and slidably connected to the bottom of the plurality of groups of fillable filter membranes, the detection frame is contacted and connected with the side ends of the plurality of groups of fillable filter membranes through a photoelectric sensor mounted on the side, a filter box is mounted on the bottom of the detection frame, a detection processor is mounted on the inner top wall surface of the treatment flow waterway, and the detection The bottom end of the measuring processor is connected to a control feedback harness, the bottom end of the control feedback harness is connected to a dosage guide, the left and right ends of the dosage guide are symmetrically connected with guide pipes, the bottom end of the guide pipe is connected to the top end of a group of fillable filter membranes, the side end of the dosage guide is connected with a delivery pipe, the side end of the delivery pipe is provided with a two-way delivery micro-material pump, the side ends of the two-way delivery micro-material pump are respectively connected with a biological filter material delivery pipe and a functional material delivery pipe, the side end of the biological filter material delivery pipe is connected with a first metering injection pipe end, and the side end of the functional material delivery pipe is connected with a second metering injection pipe end.

[0006] Preferably, a transverse feeding rack is installed at the top of the sedimentation tank, the bottom end of the transverse feeding rack is connected to a flocculation feeding pipe, and a dosage control feeding end is installed at the side end of the flocculation feeding pipe.

[0007] Preferably, a center frame is installed on the inner surface of the sedimentation tank, a spoiler motor is installed on the inner center end of the center frame, and a vortex stirring rod is connected to the bottom of the spoiler motor.

[0008] Preferably, a water-blocking plate is installed inside the treatment circulation waterway, the bottom output end of the filter box is connected to a treatment guide pipe, the side end of the treatment guide pipe is connected to a secondary treatment component, an emission compliance detector is installed on the top of the side end of the secondary treatment component, and the side end of the emission compliance detector is connected to a discharge pipe.

[0009] Preferably, the bottom end of the discharge pipe is connected to a catalytic oxidation box, and the side wall surface of the catalytic oxidation box is connected to a liquid discharge end.

[0010] Preferably, the secondary treatment component includes an ascending guide pump, the top end of the ascending guide pump is connected to an ascending liquid delivery pipe, the side end of the ascending liquid delivery pipe is installed with a flow rate controller, the side end of the ascending liquid delivery pipe is connected to a microfiltration integrated membrane group, and the bottom of the microfiltration integrated membrane group is connected to a guide control pipe.

[0011] Preferably, the side end of the guide control tube is connected to an exchange guide through a choke valve, an ion resin exchanger is installed on the top of the exchange guide, the side end of the ion resin exchanger is connected to a return circulation tube, and the side end of the return circulation tube is connected to an adsorption ionization column.

[0012] Preferably, the bottom end of the adsorption ionization column is connected to a common loop connecting pipe, the side end of the loop connecting pipe runs along the side of the microfiltration integrated membrane group and is connected to a top drainage liquid delivery pipe, and the side end of the top drainage liquid delivery pipe is connected to the discharge pipe.

[0013] Preferably, a sealed maintenance door is provided on the side surface of the treatment circulation waterway close to the filter box, an extraction pump is installed on the side of the treatment circulation waterway, the bottom end of the extraction pump is connected to a storage box, the side end of the extraction pump is connected to an extraction pipe, and the side end of the extraction pipe passes through the sedimentation tank and contacts with its bottom end for operation.

[0014] Preferably, a replaceable filter element is installed on the side end of the storage box, a reflux pump box is provided on the side end of the replaceable filter element, the guiding end of the reflux pump box is connected with the sedimentation tank through a pipeline, an exhaust pipe is installed on the side of the treated flow waterway, and the exhaust pipe is connected with the top end of the adsorption ionization column.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the pH value deviates from the ideal range under the cooperation of the dynamic filtration adjustment component, the water body continues to be transported, and at the same time, the telescopic adjustment rod drives the installation classification frame, multiple groups of fillable filter membranes, and the detection frame to descend, so that the multiple groups of fillable filter membranes enter the filter box from the detection frame. The multiple groups of fillable filter membranes can be filled with filter materials of different materials or functions according to changes in water quality, such as alkaline materials, activated carbon, ceramic membranes, etc., so as to remove pollutants in a targeted manner (such as pre-injecting alkaline materials through the bottom end of the guide pipe and a group of fillable filter membranes to adjust the pH value of the water body), and the photoelectric sensor on the detection frame monitors the status of each group of filter membranes, and at the same time, the detection processor starts to analyze the water sample. According to the analyzed water sample results, the detection processor sends instructions to the dosage guide through the control feedback harness The two-way micro-feeding pump selectively delivers the corresponding materials from the first metering injection tube end and the second metering injection tube end to multiple groups of fillable filter membranes through the biological filter material delivery pipe or the functional material delivery pipe according to the instructions. During the filtration process, the detection frame continuously monitors the status of the filter membrane to ensure the filtration efficiency. The treated water passes through the filter box to effectively remove pollutants in the water. It can also automatically adjust the treatment strategy according to changes in water quality to improve treatment efficiency and water quality safety. It dynamically adjusts the water quality treatment according to changes in seasons, aquaculture types and management practices, and reduces the impact of high salinity and osmotic pressure in seawater on the filter membrane material, so that in the water treatment process, the pH value can be effectively controlled to ensure the service life of multiple groups of fillable filter membranes.

[0016] 2. In the present invention, the water in the filter box is lifted from the rising liquid pipe to the microfiltration integrated membrane group by using an ascending guide pump in cooperation with the secondary treatment component, and the flow rate of the water in the rising liquid pipe is controlled in cooperation with the flow rate controller to ensure that the water is fully treated in the microfiltration integrated membrane group and avoid poor treatment effect caused by excessive flow rate. The microfiltration integrated membrane group adopts multi-layer microfiltration membrane integration technology to intercept tiny suspended particles and microorganisms in the water and further purify the water quality. After that, the guide control tube is used to guide the water treated by the microfiltration integrated membrane group to flow to the exchange guide, and the flow control valve is used to control the water flow to ensure the stability of the treatment process and prevent the treated water from flowing back and causing re-pollution.

[0017] 3. In the present invention, with the cooperation of the secondary treatment component, when the water reaches the exchange guide, the water enters the ion resin exchanger, and the ion exchange resin therein is used to remove the hardness ions (such as calcium and magnesium ions) and some heavy metal ions in the water, thereby improving the water quality. Then the return circulation pipe transports the water to the adsorption ionization column, so that the adsorption ionization column further removes the dissolved organic matter and the remaining inorganic ions in the water, and the overall purification efficiency is improved through the circulation treatment. The loop connecting pipe ensures that the water that has not been completely treated can be recirculated to the microfiltration integrated membrane group for further treatment, and the top drainage liquid delivery pipe is used to guide the treated water that meets the standards to the discharge pipe for preparation for discharge or reuse. The microfiltration integrated membrane group, ion resin exchanger, etc. can be regularly maintained and cleaned through the built-in backwash structure with the cooperation of the detection sensor to prevent blockage and performance degradation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of a filtering and separation system for treating tail water of marine aquaculture according to the present invention; Figure 2 It is a schematic structural diagram of a side view of a filtering and separation system for treating tail water of marine aquaculture according to the present invention; Figure 3 It is a schematic diagram of the internal structure of a treatment flow waterway in a filtering and separation system for treating tail water of aquaculture in the present invention; Figure 4 It is a schematic diagram of the internal structure separation of a treatment flow waterway in a filtering and separation system for treating tail water of aquaculture in the present invention; Figure 5 It is a structural schematic diagram of a dynamic filtration and adjustment component in a filtration and separation system for treating tail water of seawater aquaculture according to the present invention; Figure 6 It is a structural schematic diagram from another angle of a dynamic filtration and adjustment component in a filtration and separation system for treating tail water of marine aquaculture according to the present invention; Figure 7 It is a structural schematic diagram of a secondary treatment component in a filtering and separation system for treating seawater aquaculture tail water according to the present invention.

[0019] In the figure: 1. treatment flow channel; 2. exhaust pipe; 3. liquid inlet end; 4. extraction pump; 5. extraction pipe; 6. storage box; 7. replaceable filter element; 8. reflux pump box; 9. emission compliance detector; 10. discharge pipe; 11. catalytic oxidation box; 12. discharge end; 13. secondary treatment component; 130. ascending guide pump; 131. ascending liquid delivery pipe; 132. flow rate controller; 133. microfiltration integrated membrane group; 134. top discharge liquid delivery pipe; 135. guide control pipe; 136. exchange guide; 137. ion resin exchanger; 138. return circulation pipe; 139. adsorption ionization column; 1390. loop connecting pipe; 14. baffle; 15. detection processor; 16. seawater desalination preprocessor ; 17. Sedimentation tank; 18. pH detector; 19. Horizontal feeding rack; 20. Flocculation feeding pipe; 21. Dosage control feeding end; 22. Middle rack; 23. Turbulation motor; 24. Vortex stirring rod; 26. Dynamic filtration adjustment component; 260. Top mounting rack; 261. Telescopic adjustment rod; 262. Installation classification rack plate; 263. Fillable filter membrane; 264. Detection rack; 265. Filter box; 266. Control feedback harness; 267. Dosage guide; 268. Guide pipe; 269. Delivery pipe; 2690. Two-way guide micro-feeding pump; 2691. Biofilter material delivery pipe; 2692. First metering injection tube end; 2693. Functional material delivery pipe; 2694. Second metering injection tube end. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Reference Figure 1 - Figure 7As shown: a filtering and separation system for treating tail water of seawater aquaculture, comprising a treatment circulation waterway 1, a sedimentation tank 17 is installed inside the side of the treatment circulation waterway 1, a liquid inlet end 3 is connected to the side of the sedimentation tank 17, a side end of the sedimentation tank 17 is connected to a seawater desalination preprocessor 16 through a liquid discharge conduit, a pH detector 18 is installed on the side end of the seawater desalination preprocessor 16, and a side end of the pH detector 18 is connected to a dynamic filtration adjustment component 26 through a treatment pipe; the dynamic filtration adjustment component 26 comprises a top mounting frame 260, the top mounting frame 260 is installed on the top of the treatment circulation waterway 1, a telescopic adjustment rod 261 is installed at the bottom end of the top mounting frame 260, a classification frame 262 is fastened to the bottom of the telescopic adjustment rod 261, a plurality of groups of fillable filter membranes 263 are installed at the bottom of the classification frame 262, a detection frame 264 is sealingly and slidably connected to the bottom of the plurality of groups of fillable filter membranes 263, and the detection frame 264 is connected to the photoelectric sensor and a plurality of The side end of the group of fillable filter membranes 263 is contacted and connected, the bottom of the detection frame 264 is installed with a filter box 265, the inner top wall surface of the processing flow channel 1 is installed with a detection processor 15, the bottom end of the detection processor 15 is connected with a control feedback harness 266, the bottom end of the control feedback harness 266 is connected with a dosage guide 267, the left and right ends of the dosage guide 267 are symmetrically connected with a guide pipe 268, the bottom end of the guide pipe 268 is connected with a group of fillable filter membranes 263, and the bottom end of the guide pipe 268 is connected with a group of fillable filter membranes 263. 3, the side end of the dosage guide 267 is connected with a delivery pipe 269, the side end of the delivery pipe 269 is provided with a two-way delivery micro-pump 2690, the side ends of the two-way delivery micro-pump 2690 are respectively connected with a biological filter material delivery pipe 2691 and a functional material delivery pipe 2693, the side end of the biological filter material delivery pipe 2691 is connected with a first metering injection pipe end 2692, and the side end of the functional material delivery pipe 2693 is connected with a second metering injection pipe end 2694.

[0022] according to Figure 4 As shown, a transverse feeding rack 19 is installed at the top of the sedimentation tank 17, and a flocculation feeding pipe 20 is connected to the bottom of the transverse feeding rack 19. A dosage control feeding end 21 is installed at the side end of the flocculation feeding pipe 20. Before treating the marine aquaculture tail water, the operator will prepare a certain amount of flocculant at the transverse feeding rack 19, and the flocculant will be evenly distributed into the sedimentation tank 17 through the flocculation feeding pipe 20. The dosage control feeding end 21 is used to cooperate with the built-in detection sensor in the sedimentation tank 17 to accurately control the amount of flocculant added through the precipitation change to ensure the efficiency and effect of the precipitated water treatment.

[0023] according to Figure 4As shown, a center frame 22 is installed on the inner surface of the sedimentation tank 17, and a disturbance motor 23 is installed on the inner center end of the center frame 22. A vortex stirring rod 24 is connected to the bottom of the disturbance motor 23. When the sedimentation tank 17 enters the working mode, the disturbance motor 23 is activated and starts to run. The vortex stirring rod 24 rotates under the drive of the disturbance motor 23 to generate a vortex-shaped water flow disturbance, which helps to destroy the laminar flow state in the water, so that the fine particles suspended in the water have the opportunity to collide and aggregate with each other, and form larger flocs with the cooperation of the above-mentioned flocculant, thereby accelerating the sedimentation rate.

[0024] according to Figure 2 - Figure 4 As shown, a water-blocking plate 14 is installed inside the treatment flow channel 1, the bottom output end of the filter box 265 is connected to a treatment guide pipe, the side end of the treatment guide pipe is connected to a secondary treatment component 13, and a discharge standard detector 9 is installed on the top of the side end of the secondary treatment component 13. The side end of the discharge standard detector 9 is connected to a discharge pipe 10. The water-blocking plate 14 prevents water flow from affecting the subsequent secondary treatment component 13, and the discharge standard detector 9 is installed on the top of the side end of the secondary treatment component 13, so as to monitor whether the water quality meets the prescribed discharge standards before the water body is discharged. When the test result shows that the water quality meets the standard, the discharge valve will be opened to allow water to be discharged into the environment through the discharge pipe 10.

[0025] according to Figure 2 - Figure 4 As shown, the bottom end of the discharge pipe 10 is connected to a catalytic oxidation box 11, and the side wall surface of the catalytic oxidation box 11 is connected to a discharge end 12. After the operation of the above-mentioned secondary treatment component 13, the water body flows into the discharge pipe 10 and enters the catalytic oxidation box 11. Under the action of the catalyst, it quickly reacts with the oxidant to degrade residual organic matter and other pollutants. After that, the water body that has been catalytically oxidized and confirmed to meet the water quality standards is safely discharged to natural water bodies through the discharge end 12 or enters the next level of treatment.

[0026] according to Figure 3 , Figure 4 and Figure 7As shown, the secondary treatment component 13 includes an ascending guide pump 130, the top of the ascending guide pump 130 is connected to an ascending liquid delivery pipe 131, the side end of the ascending liquid delivery pipe 131 is installed with a flow rate controller 132, the side end of the ascending liquid delivery pipe 131 is connected to a microfiltration integrated membrane group 133, and the bottom of the microfiltration integrated membrane group 133 is connected to a guide control pipe 135. The ascending guide pump 130 is responsible for lifting the water in the filter box 265 from the ascending liquid delivery pipe 131 to the microfiltration integrated membrane group 133, and controlling the ascending liquid delivery pipe 132 in cooperation with the flow rate controller 132. The flow rate of the water in the tube 131 ensures that the water is fully treated in the microfiltration integrated membrane group 133 to avoid poor treatment effect caused by too fast flow rate. The microfiltration integrated membrane group 133 adopts multi-layer microfiltration membrane integration technology to intercept tiny suspended particles and microorganisms in the water and further purify the water quality. Then, the guide control tube 135 is used to guide the water treated by the microfiltration integrated membrane group 133 to flow to the exchange guide 136, and the flow control valve is used to control the water flow to ensure the stability of the treatment process and prevent the treated water from flowing back and causing re-pollution.

[0027] according to Figure 3 , Figure 4 and Figure 7 As shown, the side end of the guide control tube 135 is connected to the exchange guide 136 through a choke valve, and an ion resin exchanger 137 is installed on the top of the exchange guide 136. The side end of the ion resin exchanger 137 is connected to a return circulation pipe 138, and the side end of the return circulation pipe 138 is connected to an adsorption ionization column 139. When the water reaches the exchange guide 136, the water enters the ion resin exchanger 137, and the ion exchange resin therein is used to remove hardness ions (such as calcium and magnesium ions) and some heavy metal ions in the water to improve the water quality. Then the return circulation pipe 138 transports the water to the adsorption ionization column 139, so that the adsorption ionization column 139 further removes soluble organic matter and remaining inorganic ions in the water, thereby improving the overall purification efficiency through circulation treatment.

[0028] according to Figure 3 , Figure 4 and Figure 7 As shown, the bottom end of the adsorption ionization column 139 is connected to a general loop connecting pipe 1390, and the side end of the loop connecting pipe 1390 runs along the side of the microfiltration integrated membrane group 133 and is connected to a top drainage liquid delivery pipe 134, and the side end of the top drainage liquid delivery pipe 134 is connected to the discharge pipe 10, wherein the loop connecting pipe 1390 ensures that the incompletely treated water can be recirculated to the microfiltration integrated membrane group 133 for further treatment, and the top drainage liquid delivery pipe 134 is used to guide the treated water that meets the standards to the discharge pipe 10 for discharge or reuse, and the microfiltration integrated membrane group 133, the ion resin exchanger 137, etc. can be regularly maintained and cleaned through a built-in backwashing structure (not shown in the figure) with the cooperation of the detection sensor to prevent clogging and performance degradation.

[0029] according to Figure 1 - Figure 4 As shown, a sealed maintenance door is provided on the side surface of the treatment circulation waterway 1 near the filter box 265, and an extraction pump 4 is installed on the side of the treatment circulation waterway 1. The bottom end of the extraction pump 4 is connected to the storage box 6, and the side end of the extraction pump 4 is connected to the extraction pipe 5. The side end of the extraction pipe 5 passes through the sedimentation tank 17 and contacts with the bottom end thereof. In the water treatment process, the raw water first passes through the treatment circulation waterway 1, undergoes preliminary treatment in the sedimentation tank 17 and the seawater desalination pretreatment device 16, and then enters the filter box 265 for further filtration. During the filtration operation, the raw water can be further filtered through the sealed maintenance door. The fillable filter membrane 263 and dosage guide 267 of the dynamic filtration adjustment component 26, the two-way guide micro-material pump 2690 and the detection frame 264 are replaced and adjusted. Then, after a long period of operation, a certain amount of solid sediment will accumulate at the bottom of the sedimentation tank 17. At this time, the extraction pump 4 is started, and the suction operation is started through the extraction pipe 5 to penetrate into the bottom of the sedimentation tank 17. The sediment is extracted by the extraction pump 4 and transported to the storage tank 6 through the extraction pipe 5. The extraction pump 4 can use an efficient and energy-saving pump body, combined with frequency conversion technology, to adjust the operating state of the pump as needed to save energy.

[0030] according to Figure 1 - Figure 4 As shown, a replaceable filter element 7 is installed at the side end of the storage box 6, and a reflux pump box 8 is set at the side end of the replaceable filter element 7. The guiding end of the reflux pump box 8 is connected with the sedimentation tank 17 through a pipeline. An exhaust pipe 2 is installed on the side of the treatment flow waterway 1, and the exhaust pipe 2 is connected with the top of the adsorption ionization column 139. The sediment or water extracted from the sedimentation tank 17 first enters the storage box 6 and is preliminarily filtered by the replaceable filter element 7, so that the filtered water is pumped back to the sedimentation tank 17 by the reflux pump box 8 to participate in the circulation treatment, thereby improving the utilization rate and treatment efficiency of the water. Afterwards, the gas generated during the treatment process of the above-mentioned adsorption ionization column 139 is discharged through the exhaust pipe 2. An external biological filter can be connected to the side of the exhaust pipe 2 to purify the gas discharged from the exhaust pipe 2, reduce the impact on the environment, and maintain the air pressure balance inside the secondary treatment component 13 to ensure the safety of the operator and the normal operation of the equipment.

[0031] The wiring diagram of the emission compliance detector 9, exchange guide 136, ion resin exchanger 137, adsorption ionization column 139, detection processor 15, seawater desalination preprocessor 16, pH detector 18, spoiler motor 23, fillable filter membrane 263, dosage guide 267, photoelectric sensor and two-way guiding micro-pump 2690 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the emission compliance detector 9, exchange guide 136, ion resin exchanger 137, adsorption ionization column 139, detection processor 15, seawater desalination preprocessor 16, pH detector 18, spoiler motor 23, fillable filter membrane 263, dosage guide 267, photoelectric sensor and two-way guiding micro-pump 2690 will no longer be explained in detail.

[0032] The use method and working principle of the device are as follows: first, before treating the tail water of marine aquaculture, the operator will prepare a certain amount of flocculant at the horizontal feeding rack 19, and the flocculant will be evenly distributed in the sedimentation tank 17 through the flocculation feeding pipe 20, and the dosage control feeding end 21 will be used to cooperate with the built-in detection sensor of the sedimentation tank 17 to accurately control the amount of flocculant added by the precipitation change to ensure the efficiency and effect of the precipitated water treatment. After that, the raw water enters the sedimentation tank 17 through the liquid inlet end 3. When the sedimentation tank 17 enters the working mode, the disturbance motor 23 is activated and starts to run. The vortex stirring rod 24 rotates under the drive of the disturbance motor 23 to generate a vortex-shaped water flow disturbance, which helps to destroy the laminar flow state in the water and makes the fine particles suspended in the water organic matter They will collide and gather with each other, and form larger flocs with the cooperation of the above-mentioned flocculant, thereby accelerating their sedimentation speed. At this time, the extraction pump 4 is started, and the suction operation is started through the extraction pipe 5 to the bottom of the sedimentation tank 17. The sediment is extracted by the extraction pump 4 and transported to the storage tank 6 through the extraction pipe 5. The extraction pump 4 can use an efficient and energy-saving pump body, combined with frequency conversion technology, to adjust the operating state of the pump as needed to save energy. The sediment or water extracted from the sedimentation tank 17 first enters the storage tank 6, and is initially filtered through the replaceable filter element 7, so that the filtered water is pumped back to the sedimentation tank 17 by the reflux pump box 8 to participate in the circulation treatment, thereby improving the utilization rate and treatment efficiency of the water body. After that, the precipitated water is transferred to the seawater desalination preprocessor 16 through the drainage conduit for desalination. Salinity, coarse filtration, pre-oxidation, etc. During this period, the pH detector 18 monitors the pH of the water to ensure that it meets the optimal conditions for subsequent treatment. When the pH value deviates from the ideal range, the water body continues to be transported, and at the same time, the telescopic adjustment rod 261 drives the installation classification frame 262, multiple groups of fillable filter membranes 263, and the detection frame 264 to descend, so that the multiple groups of fillable filter membranes 263 enter the filter box 265 from the detection frame 264. The multiple groups of fillable filter membranes 263 can be filled with filter materials of different materials or functions according to changes in water quality, such as alkaline materials, activated carbon, ceramic membranes, etc., to remove pollutants in a targeted manner (such as pre-injecting alkaline materials through the bottom end of the guide pipe 268 and the connection with one more group of fillable filter membranes 263 to adjust the pH value of the water body), and make The photoelectric sensor on the detection frame 264 monitors the status of each group of filter membranes, and the detection processor 15 starts to analyze the water sample. According to the analyzed water sample results, the detection processor 15 sends instructions to the dosage guide 267 through the control feedback harness 266 to adjust the addition ratio of chemical agents or biological filter materials. The two-way guide micro-material pump 2690 selectively transports the corresponding materials from the first metering injection tube end 2692 and the second metering injection tube end 2694 to multiple groups of fillable filter membranes 263 through the biological filter material delivery pipe 2691 or the functional material delivery pipe 2693 according to the instructions. During the filtration process, the detection frame 264 continuously monitors the status of the filter membrane to ensure the filtration efficiency. The treated water passes through the filter box 265 to effectively remove pollutants in the water.It can also automatically adjust the treatment strategy according to the change of water quality, improve the treatment efficiency and water quality safety, dynamically adjust the water quality treatment according to the change of season, aquaculture type and management practice, and reduce the impact of high salinity and osmotic pressure in seawater on the filter membrane material, so that in the process of water treatment, the pH value can be effectively treated and controlled to ensure the service life of multiple groups of refillable filter membranes 263. During the filtration operation, the refillable filter membrane 263 and the dosage guide 267, the two-way guide micro-feeding pump 2690 and the detection frame 264 of the dynamic filtration adjustment component 26 can be replaced and adjusted through the sealed maintenance door, and then the ascending guide pump 130 is used to lift the water in the filter box 265 from the ascending liquid pipeline 131 to the microfiltration integrated membrane group 133, and the flow rate of the water in the ascending liquid delivery pipe 131 is controlled in cooperation with the flow rate controller 132 to ensure that the water is fully treated in the microfiltration integrated membrane group 133 to avoid poor treatment effect caused by excessive flow rate. The microfiltration integrated membrane group 133 adopts multi-layer microfiltration membrane integration technology to intercept tiny suspended particles and microorganisms in the water to further purify the water quality. After that, the guide control pipe 135 is used to guide the water treated by the microfiltration integrated membrane group 133 to flow to the exchange guide 136, and the choke valve is used to control the water flow to ensure the stability of the treatment process and prevent the treated water from backflowing and causing re-pollution. When the water reaches the exchange guide 136, the water enters the ion resin exchanger 137 and uses the ion exchange resin exchanger 137 to The resin is replaced to remove hardness ions (such as calcium and magnesium ions) and some heavy metal ions in the water to improve the water quality. Then the return circulation pipe 138 transports the water to the adsorption ionization column 139, so that the adsorption ionization column 139 further removes the dissolved organic matter and the remaining inorganic ions in the water. The overall purification efficiency is improved through the circulation treatment. The loop connecting pipe 1390 ensures that the untreated water can be recycled to the microfiltration integrated membrane group 133 for further treatment, and the top drainage liquid delivery pipe 134 is used to guide the treated water that meets the standards to the discharge pipe 10 for discharge or reuse. The microfiltration integrated membrane group 133, the ion resin exchanger 137, etc. can be regularly maintained and cleaned through the built-in backwashing structure with the cooperation of the detection sensor. Washing, to prevent clogging and performance degradation, and the gas generated during the treatment process of the above-mentioned adsorption ionization column 139 is discharged through the exhaust pipe 2. An external biological filter can be connected to the side of the exhaust pipe 2 to purify the gas discharged from the exhaust pipe 2 to reduce the impact on the environment and maintain the air pressure balance inside the secondary treatment component 13 to ensure the safety of operators and the normal operation of the equipment. After the operation of the above-mentioned secondary treatment component 13, the water body flows into the discharge pipe 10 and enters the catalytic oxidation box 11. Under the action of the catalyst, it reacts quickly with the oxidant to degrade the residual organic matter and other pollutants. After that, the water body that has been catalytically oxidized and confirmed to meet the water quality standards is safely discharged to the natural water body through the discharge end 12 or enters the next level of treatment. ,

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filtering and separation system for treating tail water from seawater aquaculture, characterized by: The invention comprises a treatment circulation waterway (1), a sedimentation tank (17) is installed inside the side of the treatment circulation waterway (1), the side of the sedimentation tank (17) is connected to a liquid inlet (3), the side end of the sedimentation tank (17) is connected to a seawater desalination preprocessor (16) through a liquid discharge conduit, a pH detector (18) is installed on the side end of the seawater desalination preprocessor (16), and the side end of the pH detector (18) is connected to a dynamic filtration adjustment component (26) through a treatment pipe; The dynamic filtration adjustment component (26) comprises a top mounting frame (260), wherein the top mounting frame (260) is mounted on the top of the treatment circulation waterway (1), a telescopic adjustment rod (261) is mounted on the bottom end of the top mounting frame (260), a mounting classification frame plate (262) is fastened to the bottom of the telescopic adjustment rod (261), a plurality of groups of fillable filter membranes (263) are mounted on the bottom of the mounting classification frame plate (262), a detection frame (264) is sealingly and slidably connected to the bottom of the plurality of groups of fillable filter membranes (263), the detection frame (264) is contact-connected with the side ends of the plurality of groups of fillable filter membranes (263) through a photoelectric sensor mounted on the side, a filter box (265) is mounted on the bottom of the detection frame (264), a detection processor (15) is mounted on the inner top wall surface of the treatment circulation waterway (1), and the detection processor (15) The bottom end is connected to a control feedback harness (266), the bottom end of the control feedback harness (266) is connected to a dosage guide (267), the left and right ends of the dosage guide (267) are symmetrically connected to a guide tube (268), the bottom end of the guide tube (268) is connected to the top end of a group of fillable filter membranes (263), the side end of the dosage guide (267) is connected to a delivery tube (269), the side end of the delivery tube (269) is provided with a two-way delivery micro-material pump (2690), the side ends of the two-way delivery micro-material pump (2690) are respectively connected to a biological filter material delivery tube (2691) and a functional material delivery tube (2693), the side end of the biological filter material delivery tube (2691) is connected to a first metering injection tube end (2692), and the side end of the functional material delivery tube (2693) is connected to a second metering injection tube end (2694).

2. The filtering and separation system for treating seawater aquaculture tail water according to claim 1, characterized in that: A transverse feeding rack (19) is installed at the top of the sedimentation tank (17), the bottom end of the transverse feeding rack (19) is connected to a flocculation feeding pipe (20), and a dosage control feeding end (21) is installed at the side end of the flocculation feeding pipe (20).

3. The filtering and separation system for treating seawater aquaculture tail water according to claim 1, characterized in that: A center frame (22) is installed on the inner surface of the sedimentation tank (17), a flow disturbance motor (23) is installed on the inner center end of the center frame (22), and a vortex stirring rod (24) is connected to the bottom of the flow disturbance motor (23).

4. The filtering and separation system for treating seawater aquaculture tail water according to claim 1, characterized in that: A water baffle (14) is installed inside the treatment flow channel (1); the bottom output end of the filter box (265) is connected to a treatment guide pipe; the side end of the treatment guide pipe is connected to a secondary treatment component (13); an emission compliance detector (9) is installed on the top of the side end of the secondary treatment component (13); and the side end of the emission compliance detector (9) is connected to a discharge pipe (10).

5. The filtering and separation system for treating seawater aquaculture tail water according to claim 4, characterized in that: The bottom end of the discharge pipe (10) is connected to a catalytic oxidation box (11), and the side wall surface of the catalytic oxidation box (11) is connected to a liquid discharge end (12).

6. The filtering and separation system for treating seawater aquaculture tail water according to claim 4, characterized in that: The secondary treatment component (13) comprises an ascending guide pump (130), the top end of the ascending guide pump (130) is connected to an ascending liquid delivery pipe (131), a flow rate controller (132) is installed at the side end of the ascending liquid delivery pipe (131), the side end of the ascending liquid delivery pipe (131) is connected to a microfiltration integrated membrane group (133), and the bottom of the microfiltration integrated membrane group (133) is connected to a guide control pipe (135).

7. The filtering and separation system for treating seawater aquaculture tail water according to claim 6, characterized in that: The side end of the guide control tube (135) is connected to an exchange guide (136) via a choke valve; an ion resin exchanger (137) is installed on the top of the exchange guide (136); the side end of the ion resin exchanger (137) is connected to a return circulation tube (138); and the side end of the return circulation tube (138) is connected to an adsorption ionization column (139).

8. The filtering and separation system for treating seawater aquaculture tail water according to claim 7, characterized in that: The bottom end of the adsorption ionization column (139) is connected to a common loop connecting pipe (1390), the side end of the loop connecting pipe (1390) runs along the side of the microfiltration integrated membrane group (133) and is connected to a top drainage liquid delivery connecting pipe (134), and the side end of the top drainage liquid delivery connecting pipe (134) is connected to the discharge pipe (10).

9. The filtering and separation system for treating seawater aquaculture tail water according to claim 1, characterized in that: A sealed maintenance door is provided on the side surface of the treatment circulation waterway (1) close to the filter box (265), and an extraction pump (4) is installed on the side of the treatment circulation waterway (1). The bottom end of the extraction pump (4) is connected to the storage box (6), and the side end of the extraction pump (4) is connected to the extraction pipe (5). The side end of the extraction pipe (5) passes through the sedimentation tank (17) and contacts the bottom end thereof for operation.

10. The filtering and separation system for treating seawater aquaculture tail water according to claim 9, characterized in that: A replaceable filter element (7) is installed at the side end of the storage box (6), a reflux pump box (8) is installed at the side end of the replaceable filter element (7), the guide end of the reflux pump box (8) is connected to the sedimentation tank (17) through a pipeline, and an exhaust pipe (2) is installed at the side of the treatment flow waterway (1), and the exhaust pipe (2) is connected to the top end of the adsorption ionization column (139).

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