A tailwater treatment system
By integrating wastewater treatment equipment and microbial culture containers into a wastewater treatment system, the problem of high equipment and material costs in the aquaculture industry has been solved, resulting in cost savings on equipment and reduced costs for microbial culture, while improving water quality and the diffusion effect of microorganisms.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNICOM (GUANGDONG) IND INTERNET CO LTD
- Filing Date
- 2024-07-02
- Publication Date
- 2026-07-17
AI Technical Summary
In the aquaculture industry, the animal health product delivery system and the wastewater treatment system are two separate systems, which leads to high equipment costs and additional costs for microbial culture materials.
Design a wastewater treatment system that combines wastewater treatment equipment and microbial culture containers. The system uses the solid-liquid mixture obtained after wastewater treatment to cultivate microorganisms, thereby integrating the delivery of animal health products with wastewater treatment. Gravity separation is used to form a sediment layer and a liquid layer, with the liquid layer being returned to the aquaculture water body, thus reducing equipment and material costs.
It achieves cost savings in equipment and reduction in microbial culture costs. Through water circulation and microbial reuse, it improves the water quality of aquaculture water and the diffusion effect of microorganisms in the water.
Smart Images
Figure CN118702292B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water treatment system technology, and more particularly to a wastewater treatment system. Background Technology
[0002] To maintain the health and growth of fish in fishponds, it is necessary to regularly add animal health products, such as EM (Effective Microorganisms), lactic acid bacteria, or medicated bath agents. The device that performs these functions is called an animal health product delivery system. At the same time, to maintain the water quality of the fishpond, the wastewater also needs to be treated. In related technologies, the animal health product delivery system and the wastewater treatment system are two independent and non-interconnected systems, resulting in excessively high equipment costs in the aquaculture industry. Summary of the Invention
[0003] This application discloses a wastewater treatment system that can be used for the delivery of animal health products and the treatment of wastewater to save equipment costs. Furthermore, the solid-liquid mixture obtained after treating the wastewater can be used to cultivate microorganisms, thereby further reducing aquaculture costs.
[0004] To achieve the above objectives, this application discloses a wastewater treatment system, comprising:
[0005] A wastewater treatment device is provided, comprising an inlet, a return outlet, and a discharge outlet. The inlet is configured to connect to an aquaculture water body via an inlet pipe to deliver wastewater from the aquaculture water body into the wastewater treatment device. The return outlet is configured to connect to the aquaculture water body via a return pipe to discharge the return water obtained after the wastewater has been treated by the wastewater treatment device. The discharge outlet is configured to discharge the solid-liquid mixture obtained after the wastewater has been treated by the wastewater treatment device via a discharge pipe.
[0006] A microbial culture container is connected to a drain pipe to receive the solid-liquid mixture discharged from the drain pipe. The microbial culture container is configured to cultivate microorganisms using the solid-liquid mixture, and to allow the solid-liquid mixture to stand to form a sediment layer and a liquid layer containing the microorganisms, and to discharge the sediment layer to the drain pipe. The microbial culture container also has a microbial delivery pipe connected to a return pipe, which is configured to discharge the liquid layer from the microbial culture container to the return pipe, so that the liquid layer mixes with the return water and flows back to the aquaculture water body.
[0007] As an optional implementation, the microbial culture container is provided with a vertical partition, which is configured to divide the internal cavity of the microbial culture container into a culture cavity and a confluence cavity;
[0008] The wastewater treatment system further includes a bidirectional conveying pipeline, the culture chamber is connected to the sewage discharge pipeline through the bidirectional conveying pipeline, the sewage discharge pipeline is configured to discharge the solid-liquid mixture to the culture chamber through the bidirectional conveying pipeline, the culture chamber is configured to cultivate microorganisms using the solid-liquid mixture, and to allow the solid-liquid mixture to stand to form the sedimentation layer and the liquid layer containing the microorganisms, and to discharge the sedimentation layer to the sewage discharge pipeline through the bidirectional conveying pipeline;
[0009] The partition is provided with a plurality of drainage holes, which are configured to transfer the liquid layer in the culture chamber to the manifold, which is connected to the microbial delivery pipe.
[0010] As an optional implementation, the bidirectional conveying pipeline includes a first conveying pipeline and a second conveying pipeline arranged parallel to the first conveying pipeline. The two ends of the first conveying pipeline are respectively connected to the bottom of the culture chamber and the sewage discharge pipeline. The two ends of the second conveying pipeline are respectively connected to the bottom of the culture chamber and the sewage discharge pipeline. A first spiral conveying blade is provided in the first conveying pipeline, and a second spiral conveying blade is provided in the second conveying pipeline. The conveying direction of the first spiral conveying blade is opposite to the conveying direction of the second spiral conveying blade.
[0011] As an optional implementation, the wastewater treatment system further includes:
[0012] Multiple valve elements are provided, and the number of drainage holes is multiple. The multiple drainage holes are arranged at intervals along the vertical direction on the partition plate. Each valve element is arranged on each drainage hole, and each valve element is configured to open or close each drainage hole.
[0013] A first depth measuring device, disposed on the culture chamber, is configured to detect the depth of the liquid layer within the culture chamber; and
[0014] A first controller, the first depth measuring device, and each of the valve elements are all connected to the first controller. The first controller is configured to control the valve elements within the depth range of the liquid layer to open, and to control the valve elements below the liquid layer to close, based on the depth measured by the first depth measuring device.
[0015] As an optional implementation, the wastewater treatment system further includes:
[0016] A baffle plate is provided on the side of the partition facing the manifold. The drain hole is a vertically arranged strip-shaped hole. The baffle plate is provided corresponding to the strip-shaped hole. The baffle plate is configured to block the strip-shaped hole below the top of the baffle plate.
[0017] A lifting mechanism is provided on the microbial culture container, and a baffle plate is driven and connected to the lifting mechanism. The lifting mechanism is configured to drive the baffle plate to move up and down.
[0018] A second depth measuring device is disposed on the culture chamber and configured to detect the depth of the liquid layer within the culture chamber; and
[0019] The second controller, the second depth measuring device, and the lifting mechanism are all connected to the second controller. The second controller is configured to control the lifting mechanism to drive the baffle plate to rise and fall according to the depth measured by the second depth measuring device.
[0020] As an optional implementation, the wastewater treatment system further includes:
[0021] A solution preparation container, wherein the solution preparation container is connected to the reflux pipe;
[0022] A liquid level sensor is disposed within the solution preparation container and configured to detect the liquid level of the existing solution within the solution preparation container;
[0023] A first liquid pump is connected to the solution preparation container and is configured to input a drug solution into the solution preparation container to mix with the existing solution to obtain a first mixed solution.
[0024] A third controller is connected to the level sensor and the first liquid pump. The third controller is configured to control the input volume of the first liquid pump based on the level measured by the level sensor.
[0025] As an optional implementation, the wastewater treatment system further includes:
[0026] A second liquid pump is installed on the microbial delivery pipeline, which is connected to the solution preparation container and, through the solution preparation container, to the return pipeline. The second liquid pump is configured to input the liquid layer into the solution preparation container to mix with the existing solution to obtain a second mixed solution. The second liquid pump is connected to the third controller, which is further configured to control the input volume of the second liquid pump based on the liquid level measured by the liquid level sensor.
[0027] As an optional implementation, the wastewater treatment system further includes:
[0028] A flow meter is disposed on the return pipe and configured to detect the flow rate of the return water in the return pipe;
[0029] A solution injection pipe, the two ends of which are respectively connected to the solution preparation container and the reflux pipe;
[0030] A third liquid pump is disposed on the solution injection pipe and is configured to inject the first mixed solution or the second mixed solution into the return pipe;
[0031] A fourth controller is provided, wherein both the flow meter and the third liquid pump are connected to the fourth controller, and the fourth controller is configured to control the flow rate of the third liquid pump based on the flow rate measured by the flow meter.
[0032] As an optional implementation, the cross-sectional area of the bottom of the solution preparation container decreases from top to bottom, and the bottom end of the solution preparation container is connected to the return pipe through the solution injection pipe;
[0033] And / or, the solution preparation container is provided with an air stone.
[0034] As an optional implementation method,
[0035] The wastewater treatment equipment includes a housing and a fluid cyclone separator, wherein the fluid cyclone separator is disposed inside the housing.
[0036] A water pump is installed on the water inlet pipe, the inlet of the water inlet pipe is configured to extend below the liquid surface of the aquaculture water, the water inlet is located on the fluid cyclone separator, and the outlet of the water inlet pipe is connected to the water inlet.
[0037] The drain outlet is located at the bottom of the fluid cyclone separator, the inlet of the drain pipe is connected to the drain outlet, the outlet of the drain pipe is configured to connect to the outside, and the microbial culture container is connected to the two ends of the drain pipe.
[0038] The return port is located at the top of the fluid cyclone separator, the inlet of the return pipe is connected to the return port, and the outlet of the return pipe is provided with a water distribution pipe, which is configured to be located above the liquid surface of the aquaculture water.
[0039] Compared with the prior art, the beneficial effects of this application are: the tailwater treatment system treats tailwater through tailwater treatment equipment, and the solid-liquid mixture and return water obtained after treatment are returned to the aquaculture water body through return pipes, so as to reduce the water consumption of the aquaculture water body and realize water circulation.
[0040] Furthermore, the microbial culture container utilizes the solid-liquid mixture discharged from the sewage pipe to cultivate microorganisms, thereby reducing the material costs of microbial cultivation, realizing waste reuse, and integrating the microbial culture container with the wastewater treatment equipment into a unified whole. The microbial culture container also allows the solid-liquid mixture to settle, forming a sediment layer and a liquid layer containing microorganisms, and then discharges the sediment layer into the sewage pipe. In other words, the microbial culture container not only utilizes the solid-liquid mixture for microbial cultivation but also separates the solid and liquid through settling, removing the sediment layer that is detrimental to the purification of the aquaculture water. Furthermore, this wastewater treatment system also mixes the liquid layer with reflux water and returns it to the aquaculture water, diluting the microorganisms in the liquid layer before dispersing them into the aquaculture water, which is beneficial for the diffusion of microorganisms in the aquaculture water.
[0041] In summary, this wastewater treatment system combines the functions of dispensing animal health products and treating wastewater, thereby saving equipment costs in the aquaculture industry. Furthermore, the solid-liquid mixture obtained after treating the wastewater can be used to cultivate microorganisms, further reducing aquaculture costs. Attached Figure Description
[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0043] Figure 1 This is a schematic diagram of the structure of a wastewater treatment system disclosed in an embodiment of this application;
[0044] Figure 2 for Figure 1 A magnified view of a portion of region A shown in the image;
[0045] Figure 3 This is a schematic diagram showing the connection of the first depth measuring device, the first controller, and the valve element disclosed in an embodiment of this application;
[0046] Figure 4 This is another structural schematic diagram of the microbial culture container disclosed in the embodiments of this application;
[0047] Figure 5 This is a schematic diagram showing the connection of the second depth measuring device, the second controller, and the lifting mechanism disclosed in an embodiment of this application.
[0048] Figure 6 for Figure 4 A schematic diagram of the lifting mechanism driving the baffle plate to descend.
[0049] Figure 7This is a schematic diagram of the bidirectional delivery pipeline disclosed in an embodiment of this application;
[0050] Figure 8 This is a schematic diagram showing the connection of the liquid level sensor, the third controller, the first liquid pump, and the second liquid pump disclosed in an embodiment of this application.
[0051] Figure 9 This is a schematic diagram of the flow meter, fourth controller, and third liquid pump disclosed in the embodiments of this application.
[0052] Explanation of reference numerals in the attached figures:
[0053] 100. Wastewater treatment system; 110. Wastewater treatment equipment; 111. Inlet pipe; 112. Return pipe; 1121. Flow meter; 113. Sewage pipe; 114. Housing; 115. Hydrocyclone; 1151. Sewage outlet; 1152. Return outlet; 1153. Inlet; 116. Water pump; 117. Distribution pipe; 120. Microbial culture container; 121. Microbial release pipe; 122. Baffle; 1221. Drain hole; 123. Culture chamber; 124. Manifold chamber; 125. Second liquid pump; 130. Bidirectional conveying pipeline; 131. First conveying pipeline; 132. Second conveying pipeline; 133. First spiral conveying blade; 134. Second spiral conveying blade; 140. Valve element; 150a. First depth measuring device; 150b. Second depth measuring device; 160a. First controller; 160b. Second controller; 160c. Third controller; 160d. Fourth controller; 170. Baffle plate; 180. Lifting mechanism; 181. Motor; 182. Lead screw; 183. Nut; 190. Solution preparation container; 191. Liquid level sensor; 192. First liquid pump; 193. Solution injection pipeline; 194. Third liquid pump; 195. Air stone; 200. Aquaculture water body; 300. Sedimentation layer; 400. Liquid layer. Detailed Implementation
[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only partial embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0055] In this application, the terms "upper," "lower," "top," "bottom," "inner," "outer," and "vertical," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.
[0056] Furthermore, in addition to indicating location or positional relationship, the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0057] Furthermore, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or the internal connection between two devices, components, or components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0058] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or constituent parts (their specific types and structures may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or constituent parts. Unless otherwise stated, "a plurality of" means two or more.
[0059] In related technologies, the wastewater treatment system and the microbial inoculation system are two independent systems. Structurally, they are not interconnected. Aquaculture users need to purchase two separate sets of equipment, resulting in high equipment costs. Furthermore, the microbial inoculation system requires the addition of microbial culture materials to enable the added microorganisms to grow and reproduce, further increasing material costs.
[0060] Based on this, this application discloses a wastewater treatment system that combines the functions of animal health product delivery and wastewater treatment to save equipment costs in the aquaculture industry. Furthermore, the solid-liquid mixture obtained after treating the wastewater by the wastewater treatment equipment is used to cultivate microorganisms, thereby further reducing aquaculture costs.
[0061] The technical solution of the present invention will now be described in conjunction with the embodiments and accompanying drawings.
[0062] Firstly, such as Figure 1 As shown in the figure, this application discloses a wastewater treatment system 100, including wastewater treatment equipment 110 and microbial culture container 120.
[0063] The wastewater treatment equipment 110 is equipped with an inlet 1153, a return outlet 1152, and a discharge outlet 1151. The inlet 1153 is configured to connect to the aquaculture water body 200 via an inlet pipe 111 to transport wastewater from the aquaculture water body 200 into the wastewater treatment equipment 110. The aquaculture water body 200 can refer to a fishpond, shrimppond, or shellfish aquaculture pond. The return outlet is configured to connect to the aquaculture water body 200 via a return pipe 112 to discharge the return water obtained after the wastewater treatment equipment 110 has treated the wastewater. The discharge outlet 1151 is configured to discharge the solid-liquid mixture obtained after the wastewater treatment equipment 110 has treated the wastewater via a discharge pipe 113. The term "solid-liquid mixture" refers to a mixture formed by the mixing of solid matter and liquid, where the liquid is mainly water containing dissolved organic and inorganic matter. The solid matter includes feces, feed residue, or silt. Therefore, the solid-liquid mixture contains nutrients necessary for microbial reproduction.
[0064] The microbial culture container 120 is connected to the drain pipe 113 to receive the solid-liquid mixture discharged from the drain pipe 113. The microbial culture container 120 is configured to cultivate microorganisms using the solid-liquid mixture, and to allow the solid-liquid mixture to settle to form a sediment layer 300 and a liquid layer 400 containing microorganisms, and to discharge the sediment layer 300 to the drain pipe 113. Because the solid matter in the solid-liquid mixture has a higher density, settling allows the mixture to separate into solid and liquid phases. The microorganisms can be lactic acid bacteria or EM bacteria; the addition of these microorganisms to the aquaculture water is beneficial to the growth of aquatic organisms. The term "liquid layer 400" refers to the portion of the microbial culture container 120 where the main component is liquid, and the term "sediment layer 300" refers to the portion of the microbial culture container 120 where the main component is solid. Because the sediment layer 300 has a higher density, it is located below the liquid layer 400. The microbial culture container 120 has a microbial delivery pipe 121, which is connected to a return pipe 112. The microbial delivery pipe 121 is configured to discharge the liquid layer 400 in the microbial culture container 120 to the return pipe 112, so that the liquid layer 400 is mixed with the return water and returned to the aquaculture water body 200.
[0065] The wastewater treatment system 100 treats wastewater through wastewater treatment equipment 110. The solid-liquid mixture and return water obtained after treatment by the wastewater treatment equipment 110 are returned to the aquaculture water body 200 through the return pipe 112 to reduce the water consumption of the aquaculture water body 200 and realize water circulation.
[0066] In related technologies, the solid-liquid mixture obtained after wastewater treatment is discharged to the outside world, for example, into a septic tank for further treatment. The inventors discovered that while the solid-liquid mixture contains many nutrients necessary for microbial growth, it also contains a significant amount of solid matter. Directly discharging the solid-liquid mixture back into the aquaculture water after using it to cultivate microorganisms may lead to re-contamination of the aquaculture water. However, after microbial degradation and a period of settling, the solid-liquid mixture separates into two layers: a sediment layer and a liquid layer containing microorganisms. Furthermore, the number of microorganisms in the liquid layer increases compared to the number added before cultivation. After the solid-liquid mixture separates, the liquid layer, which is more conducive to maintaining water quality, is selected and added to the aquaculture water.
[0067] Based on the above analysis, in this application, the microbial culture container 120 utilizes the solid-liquid mixture discharged from the sewage pipe 113 to cultivate microorganisms, thereby reducing the material cost of cultivating microorganisms and realizing waste reuse, thus integrating the microbial culture container 120 with the wastewater treatment equipment 110 into a whole. The microbial culture container 120 also allows the solid-liquid mixture to settle, forming a sediment layer 300 and a liquid layer 400 containing microorganisms, and discharges the sediment layer 300 to the sewage pipe 113. In other words, the microbial culture container 120 not only utilizes the solid-liquid mixture for microbial cultivation, but also achieves solid-liquid separation through settling, discharging the sediment layer 300, which is detrimental to the water quality of the aquaculture water body 200. Furthermore, the wastewater treatment system 100 also mixes the liquid layer 400 with reflux water and returns it to the aquaculture water body 200, which dilutes the microorganisms in the liquid layer 400 and allows them to be dispersed into the aquaculture water body 200, which is beneficial for the diffusion of microorganisms in the aquaculture water body 200.
[0068] In summary, the wastewater treatment system 100 combines the functions of dispensing animal health products and treating wastewater, thereby saving equipment costs in the aquaculture industry. Furthermore, the solid-liquid mixture obtained after treating the wastewater by the wastewater treatment equipment 110 is used to cultivate microorganisms, further reducing aquaculture costs.
[0069] As an optional implementation method, such as Figure 1 As shown, the wastewater treatment device 110 includes a housing 114 and a hydrocyclone 115, which is disposed within the housing 114. The hydrocyclone 115 is a separation and classification device. For example, wastewater is tangentially introduced into the hydrocyclone 115 at a certain pressure, generating a high-speed rotating flow field within the hydrocyclone 115. Under the action of the swirling flow field, the denser components in the wastewater move simultaneously axially downwards and radially outwards, moving downwards along the wall of the conical section and being discharged through the drain port 1151, thus forming an outer vortex flow field. The less dense components move towards the central axis, forming an upward-moving inner vortex at the center of the axis, and are then discharged through the return port 1152, thus achieving the purpose of two-phase separation.
[0070] A water pump 116 is installed on the water inlet pipe 111. The inlet of the water inlet pipe 111 is configured to extend below the liquid surface of the aquaculture water body 200. The water inlet 1153 is located on the fluid cyclone separator 115. The outlet of the water inlet pipe 111 is connected to the water inlet 1153.
[0071] The drain outlet 1151 is located at the bottom of the fluid cyclone separator 115. The inlet of the drain pipe 113 is connected to the drain outlet 1151, and the outlet of the drain pipe 113 is configured to connect to the outside. The microbial culture container 120 is connected to the two ends of the drain pipe 113.
[0072] The return port 1152 is located at the top of the fluid cyclone separator 115. The inlet of the return pipe 112 is connected to the return port 1152. The outlet of the return pipe 112 is provided with a water distribution pipe 117. The water distribution pipe 117 is configured to be located above the liquid surface of the aquaculture water body 200. The water distribution pipe 117 can be a pipe with multiple spray holes. The water distribution pipe 117 not only allows the return water to fully contact with the aeration to achieve the purpose of oxygenation, but also makes the microorganisms and medicines evenly distributed in the aquaculture water body 200.
[0073] As an optional implementation method, please combine with Figure 1 and Figure 2 The microbial culture container 120 is provided with a vertical partition 122, which is configured to divide the internal cavity of the microbial culture container 120 into a culture cavity 123 and a confluence cavity 124.
[0074] The wastewater treatment system 100 also includes a bidirectional conveying pipe 130. The culture chamber 123 is connected to the sewage discharge pipe 113 through the bidirectional conveying pipe 130. The sewage discharge pipe 113 is configured to discharge a solid-liquid mixture to the culture chamber 123 through the bidirectional conveying pipe 130. The culture chamber 123 is configured to cultivate microorganisms using the solid-liquid mixture and to allow the solid-liquid mixture to stand to form a sedimentation layer 300 and a liquid layer 400 containing microorganisms. The sedimentation layer 300 is then discharged to the sewage discharge pipe 113 through the bidirectional conveying pipe 130.
[0075] The partition 122 is provided with a plurality of drainage holes 1221, which are configured to transfer the liquid layer 400 in the culture chamber 123 to the manifold 124, and the manifold 124 is connected to the microbial delivery pipe 121.
[0076] The liquid layer 400 in the culture chamber 123 is discharged into the manifold 124 through the drain hole 1221 under gravity. The partition 122 is used to separate the culture chamber 123 and the manifold 124 to prevent the sediment layer 300 in the culture chamber 123 from transferring to the manifold 124. On the other hand, the method of draining liquid through the drain hole 1221, compared with methods such as pumping liquid, can avoid violent disturbance of the sediment layer 300 to a certain extent, which is conducive to maintaining the clarity of the liquid layer 400.
[0077] As an optional implementation method, please combine with Figures 1 to 3 The wastewater treatment system 100 also includes multiple valve elements 140, a first depth measuring device 150a, and a first controller 160a. Optionally, the valve elements 140 may be solenoid valves, and the first depth measuring device 150a may be a depth sounder.
[0078] There are multiple drain holes 1221, which are arranged vertically at intervals on the partition plate 122. Each valve element 140 is arranged on each drain hole 1221, and each valve element 140 is configured to open or close each drain hole 1221.
[0079] The first depth measuring device 150a is disposed on the culture chamber 123 and is configured to detect the depth of the liquid layer 400 inside the culture chamber 123.
[0080] The first depth measuring device 150a and each valve element 140 are connected to the first controller 160a. The connection between the first depth measuring device 150a and each valve element 140 and the first controller 160a can be electrical or communication. The first controller 160a is configured to control the valve elements 140 within the depth range of the liquid layer 400 to open, and to control the valve elements 140 below the liquid layer 400 to close, based on the depth measured by the first depth measuring device 150a.
[0081] Initially, all valve elements 140 are closed. When it is necessary to transfer the liquid layer 400 in the culture chamber 123 to the manifold 124, the first depth measuring device 150a detects the depth of the liquid layer 400 in the culture chamber 123. The first controller 160a controls the valve elements 140 within the depth range of the liquid layer 400 to open, and controls the valve elements 140 below the liquid layer 400 to close, thereby accurately discharging the liquid layer 400 and blocking the sediment layer 300. Compared with the liquid extraction method, this application utilizes gravity drainage to avoid disturbing the sediment layer 300 and maintain the clarity of the liquid layer 400. Since the depth of the liquid layer 400 can vary in different processing steps, the thickness of the sediment layer 300 can also vary. Therefore, this application also provides multiple drain holes 1221 and controls the opening and closing of each drain hole 1221 by multiple valve elements 140 to discharge the liquid layer 400 according to the depth of the liquid layer 400.
[0082] For example, the number of drain holes 1221 and valve elements 140 is three. In one implementation, the vertical direction is as follows: Figure 2In the Z0-Z1 direction shown, vertically, the top valve element 140 and the middle valve element 140 are located within the depth range of the liquid layer 400, while the bottom valve element 140 is located below the liquid layer 400, that is, the bottom valve element 140 corresponds to the sediment layer 300. The first controller 160a controls the top valve element 140 and the middle valve element 140 to open, and controls the bottom valve element 140 to close. The liquid layer 400 in the culture chamber 123 is discharged into the manifold 124 through the top drain hole 1221 and the middle drain hole 1221. The sediment layer 300 is retained in the culture chamber 123 and discharged back into the drain pipe 113 through the bidirectional conveying pipe 130. As an optional implementation, please refer to... Figures 4 to 6 The wastewater treatment system 100 also includes a baffle plate 170, a lifting mechanism 180, a second depth measuring device 150b, and a second controller 160b. Optionally, the second depth measuring device 150b can be a depth sounder.
[0083] A baffle plate 170 is disposed on the side of the partition plate 122 facing the manifold 124. The drain hole 1221 is a vertically arranged strip-shaped hole, and the baffle plate 170 is disposed corresponding to the strip-shaped hole. The baffle plate 170 is configured to block the strip-shaped hole below its top end. In other words, the strip-shaped hole above the top end of the baffle plate 170 is open.
[0084] A lifting mechanism 180 is mounted on the microbial culture container 120. A baffle plate 170 is connected to the lifting mechanism 180, and the lifting mechanism 180 is configured to drive the baffle plate 170 to move up and down. The lifting direction is as follows: Figure 4 and Figure 6 The Z0-Z1 direction is shown.
[0085] The second depth measuring device 150b is disposed on the culture chamber 123 and is configured to detect the depth of the liquid layer 400 inside the culture chamber 123.
[0086] The second depth measuring device 150b and the lifting mechanism 180 are both connected to the second controller 160b. The connection between the second depth measuring device 150b and the lifting mechanism 180 and the second controller 160b can be electrical or communication. The second controller 160b is configured to control the lifting mechanism 180 to drive the baffle plate 170 to rise and fall according to the depth measured by the second depth measuring device 150b.
[0087] Initially, the baffle plate 170 blocks the entire strip-shaped orifice. When it is necessary to transfer the liquid layer 400 in the culture chamber 123 to the manifold 124, the second depth measuring device 150b detects the depth of the liquid layer 400 in the culture chamber 123. The second controller 160b controls the lifting mechanism 180 to drive the baffle plate 170 down according to the depth measured by the second depth measuring device 150b, until the top of the baffle plate 170 is flush with or slightly higher than the bottom surface of the liquid layer 400. The liquid layer 400 in the culture chamber 123 is discharged into the manifold 124 through the open portion of the strip-shaped orifice, while the sediment layer 300 remains in the culture chamber 123 and is discharged back into the drain pipe 113 through the bidirectional conveying pipe 130.
[0088] Furthermore, by driving the baffle plate 170 to rise and fall through the lifting mechanism 180, the opening degree of the strip-shaped hole can be precisely controlled according to the liquid layer 400, so that the liquid layer 400 in the culture chamber 123 can be drained as much as possible.
[0089] Preferably, the lifting mechanism 180 includes a motor 181, a lead screw 182, and a nut 183. The motor 181 is located outside the manifold 124, and further, the motor 181 is connected to a second controller 160b. The lead screw 182 drives the motor 181, and the nut 183 is screwed onto the lead screw 182. The motor 181 is configured to drive the nut 183 to move in the vertical direction, and the baffle plate 170 is connected to the nut 183.
[0090] As an optional implementation, the bidirectional conveying pipe 130 includes a first conveying pipe 131 and a second conveying pipe 132 arranged parallel to the first conveying pipe 131. The two ends of the first conveying pipe 131 are respectively connected to the bottom of the culture chamber 123 and the drain pipe 113. The two ends of the second conveying pipe 132 are also connected to the bottom of the culture chamber 123 and the drain pipe 113. A first spiral conveying blade 133 is disposed within the first conveying pipe 131, and a second spiral conveying blade 134 is disposed within the second conveying pipe 132. The conveying direction of the first spiral conveying blade 133 is opposite to that of the second spiral conveying blade 134. For example, when the first spiral conveying blade 133 rotates, the solid-liquid mixture in the drain pipe 113 is conveyed to the bottom of the culture chamber 123 through the first conveying pipe 131. After solid-liquid separation, the second spiral conveying blade 134 rotates, and the sediment layer at the bottom of the culture chamber 123 is discharged back to the drain pipe 113 through the second conveying pipe 132. The first spiral conveying blade 133 and the second spiral conveying blade 134 can be driven by a motor.
[0091] As an optional implementation method, please combine with Figure 1 and Figure 8The wastewater treatment system 100 also includes a solution preparation container 190, a liquid level sensor 191, a first liquid pump 192, and a third controller 160c.
[0092] Solution preparation container 190 is connected to reflux pipe 112.
[0093] A liquid level sensor 191 is disposed within a solution preparation container 190 and is configured to detect the liquid level of the existing solution within the solution preparation container 190.
[0094] The first liquid pump 192 is connected to the solution preparation container 190. The first liquid pump 192 is configured to input the drug solution into the solution preparation container 190 and mix it with the existing solution to obtain a first mixed solution.
[0095] The level sensor 191 and the first liquid pump 192 are connected to a third controller 160c, which is configured to control the input volume of the first liquid pump 192 based on the level measured by the level sensor 191.
[0096] Furthermore, the wastewater treatment system 100 also includes a second liquid pump 125, which is installed on a microbial delivery pipe 121. The microbial delivery pipe 121 is connected to a solution preparation container 190 and, through the solution preparation container 190, to a return pipe 112. The second liquid pump 125 is configured to input a liquid layer 400 into the solution preparation container 190 to mix with the existing solution to obtain a second mixed solution. The second liquid pump 125 is connected to the third controller 160c, which is also configured to control the input volume of the second liquid pump 125 based on the liquid level measured by the liquid level sensor 191.
[0097] The solution preparation container 190 has both drug dilution and microbial dilution functions, specifically:
[0098] When the solution preparation container 190 is used for drug dilution, a solution, such as water, is first added to the solution preparation container 190 as an existing solution. The level sensor 191 detects the level of the existing solution in the solution preparation container 190. After obtaining the level of the existing solution, the third controller 160c calculates the input volume of the drug based on the input concentration of the drug and the target concentration to be achieved after dilution, and then controls the input volume of the drug by the first liquid pump 192 according to the input volume.
[0099] When the solution preparation container 190 is used for microbial dilution, a solution, such as water, is first added to the container as an existing solution. A level sensor 191 detects the level of the existing solution in the container 190. After acquiring the level of the existing solution, the third controller 160c calculates the input volume of the liquid layer 400 based on the input concentration of microorganisms in the liquid layer 400 and the target concentration to be achieved after dilution. Then, it controls the input volume of the second liquid pump 125 to the liquid layer 400 based on this input volume. It should be noted that the concentration of microorganisms in the liquid layer 400 can be detected by extraction and then input to the third controller 160c.
[0100] As an optional implementation method, please combine with Figure 1 and Figure 9 The wastewater treatment system 100 also includes a flow meter 1121, a solution injection pipe 193, a third liquid pump 194, and a fourth controller 160d.
[0101] A flow meter 1121 is installed on the return pipe 112 and is configured to detect the flow rate of the return water.
[0102] The two ends of the solution injection pipe 193 are connected to the solution preparation container 190 and the return pipe 112, respectively.
[0103] A third liquid pump 194 is provided on the solution injection pipe 193 and is configured to inject the first mixed solution or the second mixed solution into the return pipe 112.
[0104] Both the flow meter 1121 and the third liquid pump 194 are connected to the fourth controller 160d, which is configured to control the flow rate of the third liquid pump 194 based on the flow rate measured by the flow meter 1121.
[0105] The first or second mixed solution in the solution preparation container 190 needs to be further diluted to a suitable concentration before being discharged into the aquaculture water body 200. The fourth controller 160d acquires the flow rate measured by the flow meter 1121, and then calculates the flow rate of the third liquid pump 194 based on this flow rate data and the target concentration to be achieved after dilution. The flow rate of the third liquid pump 194 is then controlled according to the calculation result. When the flow rate of the third liquid pump 194 is in a certain proportion to the flow rate of the return water, the first or second mixed solution can be further diluted to the target concentration.
[0106] Optionally, the first controller 160a, the second controller 160b, the third controller 160c, and the fourth controller 160d can be different controllers or different functional modules on the same controller.
[0107] As an alternative implementation, the cross-sectional area of the bottom of the solution preparation container 190 decreases from top to bottom, and the bottom end of the solution preparation container 190 is connected to the return pipe 112 through the solution injection pipe 193, which is beneficial for the solution preparation container 190 to drain its internal liquid.
[0108] Optionally, an air stone 195 is provided inside the solution preparation container 190. Optionally, the air stone 195 is configured to be connected to a gas source, such as an air pump or a high-pressure gas cylinder. The function of the air stone 195 is to refine the gas input from the gas source before inputting it to disperse the liquid in the solution preparation container 190. When the solution preparation container 190 contains a second mixed solution, and the vitamins in the second mixed solution require certain gases to maintain their growth, the aforementioned gases can also be input through the air stone 195.
[0109] Optionally, the first liquid pump 192 is a metering pump; and / or, the second liquid pump 125 is a metering pump; further, the metering pump is an electromagnetic metering pump so as to be controlled by a third controller 160c.
[0110] Optionally, the third pump 194 is a peristaltic pump. The flow rate of the peristaltic pump can be achieved by changing the rotational speed of the motor 181.
[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to the diaphragm or full diaphragm technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A wastewater treatment system, characterized in that, include: A wastewater treatment device is provided, comprising an inlet, a return outlet, and a discharge outlet. The inlet is configured to connect to an aquaculture water body via an inlet pipe to deliver wastewater from the aquaculture water body into the wastewater treatment device. The return outlet is configured to connect to the aquaculture water body via a return pipe to discharge the return water obtained after the wastewater has been treated by the wastewater treatment device. The discharge outlet is configured to discharge the solid-liquid mixture obtained after the wastewater has been treated by the wastewater treatment device via a discharge pipe. A microbial culture container is connected to a drain pipe to receive the solid-liquid mixture discharged from the drain pipe. The microbial culture container is configured to cultivate microorganisms using the solid-liquid mixture, and to allow the solid-liquid mixture to stand to form a sediment layer and a liquid layer containing the microorganisms, and to discharge the sediment layer to the drain pipe. The microorganisms are lactic acid bacteria or EM bacteria. The microbial culture container also has a microbial delivery pipe connected to a return pipe, which is configured to discharge the liquid layer in the microbial culture container to the return pipe, so that the liquid layer mixes with the return water and flows back to the aquaculture water body. The microbial culture container is provided with a partition, which is configured to divide the internal cavity of the microbial culture container into a culture cavity and a manifold cavity; the culture cavity is connected to the sewage pipe, and the partition is provided with a plurality of drainage holes, which are configured to transfer the liquid layer in the culture cavity to the manifold cavity, and the manifold cavity is connected to the microbial delivery pipe.
2. The wastewater treatment system according to claim 1, characterized in that, The wastewater treatment system further includes a bidirectional conveying pipeline, the culture chamber is connected to the sewage discharge pipeline through the bidirectional conveying pipeline, the sewage discharge pipeline is configured to discharge the solid-liquid mixture to the culture chamber through the bidirectional conveying pipeline, the culture chamber is configured to cultivate microorganisms using the solid-liquid mixture, and to allow the solid-liquid mixture to stand to form the sediment layer and the liquid layer containing the microorganisms, and to discharge the sediment layer to the sewage discharge pipeline through the bidirectional conveying pipeline.
3. The wastewater treatment system according to claim 2, characterized in that, The bidirectional conveying pipeline includes a first conveying pipeline and a second conveying pipeline arranged parallel to the first conveying pipeline. The two ends of the first conveying pipeline are respectively connected to the bottom of the culture chamber and the sewage discharge pipeline. The two ends of the second conveying pipeline are respectively connected to the bottom of the culture chamber and the sewage discharge pipeline. A first spiral conveying blade is provided in the first conveying pipeline and a second spiral conveying blade is provided in the second conveying pipeline. The conveying direction of the first spiral conveying blade is opposite to the conveying direction of the second spiral conveying blade.
4. The wastewater treatment system according to claim 2, characterized in that, The wastewater treatment system also includes: Multiple valve elements are provided, and the number of drainage holes is multiple. The multiple drainage holes are arranged at intervals along the vertical direction on the partition plate. Each valve element is arranged on each drainage hole, and each valve element is configured to open or close each drainage hole. A first depth measuring device, disposed on the culture chamber, is configured to detect the depth of the liquid layer within the culture chamber; and A first controller, the first depth measuring device, and each of the valve elements are all connected to the first controller. The first controller is configured to control the valve elements within the depth range of the liquid layer to open, and to control the valve elements below the liquid layer to close, based on the depth measured by the first depth measuring device.
5. The wastewater treatment system according to claim 2, characterized in that, The wastewater treatment system also includes: A baffle plate is provided on the side of the partition facing the manifold. The drain hole is a vertically arranged strip-shaped hole. The baffle plate is provided corresponding to the strip-shaped hole. The baffle plate is configured to block the strip-shaped hole below the top of the baffle plate. A lifting mechanism is provided on the microbial culture container, and a baffle plate is driven and connected to the lifting mechanism. The lifting mechanism is configured to drive the baffle plate to move up and down. A second depth measuring device is disposed on the culture chamber and configured to detect the depth of the liquid layer within the culture chamber; and The second controller, the second depth measuring device, and the lifting mechanism are all connected to the second controller. The second controller is configured to control the lifting mechanism to drive the baffle plate to rise and fall according to the depth measured by the second depth measuring device.
6. The effluent treatment system according to any one of claims 1 to 5, characterized in that, The wastewater treatment system also includes: A solution preparation container, wherein the solution preparation container is connected to the reflux pipe; A liquid level sensor is disposed within the solution preparation container and configured to detect the liquid level of the existing solution within the solution preparation container; A first liquid pump is connected to the solution preparation container and is configured to input a drug solution into the solution preparation container to mix with the existing solution to obtain a first mixed solution. A third controller is connected to the level sensor and the first liquid pump. The third controller is configured to control the input volume of the first liquid pump based on the level measured by the level sensor.
7. The wastewater treatment system according to claim 6, characterized in that, The wastewater treatment system also includes: A second liquid pump is installed on the microbial delivery pipeline, which is connected to the solution preparation container and, through the solution preparation container, to the return pipeline. The second liquid pump is configured to input the liquid layer into the solution preparation container to mix with the existing solution to obtain a second mixed solution. The second liquid pump is connected to the third controller, which is further configured to control the input volume of the second liquid pump based on the liquid level measured by the liquid level sensor.
8. The wastewater treatment system according to claim 7, characterized in that, The wastewater treatment system also includes: A flow meter is disposed on the return pipe and configured to detect the flow rate of the return water in the return pipe; A solution injection pipe, the two ends of which are respectively connected to the solution preparation container and the reflux pipe; A third liquid pump is disposed on the solution injection pipe and is configured to inject the first mixed solution or the second mixed solution into the return pipe; A fourth controller is provided, wherein both the flow meter and the third liquid pump are connected to the fourth controller, and the fourth controller is configured to control the flow rate of the third liquid pump based on the flow rate measured by the flow meter.
9. The wastewater treatment system according to claim 8, characterized in that, The cross-sectional area of the bottom of the solution preparation container decreases from top to bottom, and the bottom end of the solution preparation container is connected to the return pipe through the solution injection pipe; And / or, the solution preparation container is provided with an air stone.
10. The effluent treatment system according to any one of claims 1 to 5, characterized in that, The wastewater treatment equipment includes a housing and a fluid cyclone separator, wherein the fluid cyclone separator is disposed inside the housing. A water pump is installed on the water inlet pipe, the inlet of the water inlet pipe is configured to extend below the liquid surface of the aquaculture water, the water inlet is located on the fluid cyclone separator, and the outlet of the water inlet pipe is connected to the water inlet. The drain outlet is located at the bottom of the fluid cyclone separator, the inlet of the drain pipe is connected to the drain outlet, the outlet of the drain pipe is configured to connect to the outside, and the microbial culture container is connected to the two ends of the drain pipe. The return port is located at the top of the fluid cyclone separator, the inlet of the return pipe is connected to the return port, and the outlet of the return pipe is provided with a water distribution pipe, which is configured to be located above the liquid surface of the aquaculture water.