One-to-many tail water treatment system and tail water treatment method

Abstract

The invention relates to the technical field of tail water treatment systems, in particular to a one-to-many tail water treatment system and a tail water treatment method. The one-to-many tail water treatment system comprises a tail water treatment device, a waste treatment device and a controller. The tail water treatment device is provided with a plurality of water inlet parts, a plurality of return discharge parts, a sewage discharge part and a flushing discharge part, the water inlet parts are configured to be communicated with the culture ponds, the return discharge parts are configured to be communicated with the culture ponds, and the return discharge parts and the water inlet parts are correspondingly arranged. And the flushing and discharging part and the sewage discharging part are communicated with the waste treatment device. All the water inlet parts, all the drainage parts and the flushing and discharging part are connected with a controller, the controller is configured to selectively open one of the water inlet parts, and the controller is further configured to selectively open the flushing and discharging part or the drainage parts corresponding to the water inlet parts when the water inlet parts are opened; therefore, the problem of mutual influence of water quality when one device treats a plurality of culture ponds is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of tailwater treatment systems, and in particular to a one-to-many tailwater treatment system and a tailwater treatment method. Background Art

[0002] The shore-based aquaculture tailwater treatment device is mainly used for tailwater treatment of aquaculture ponds. In order to save aquaculture water, the shore-based aquaculture tailwater treatment device will discharge the treated water back to the aquaculture pond. If a set of shore-based aquaculture tailwater treatment devices treats tailwater from multiple aquaculture ponds, bacteria, drug components and other substances in different aquaculture ponds will be mixed in the shore-based aquaculture tailwater treatment device, resulting in the water discharged back to the aquaculture pond may contain bacteria, drug components and other substances that did not originally exist in the aquaculture pond, causing the water quality between different aquaculture ponds to affect each other. Therefore, a set of shore-based aquaculture tailwater treatment devices can only treat tailwater from one aquaculture pond, but it also causes problems such as high equipment cost and low equipment utilization. Summary of the invention

[0003] The embodiment of the present application discloses a one-to-many tailwater treatment system and a tailwater treatment method, which can solve the problem of mutual influence of water quality when one device treats multiple aquaculture ponds, so as to reduce the cost of aquaculture equipment and improve equipment utilization.

[0004] In order to achieve the above objectives, in a first aspect, an embodiment of the present application discloses a one-to-many tailwater treatment system, comprising:

[0005] A tailwater treatment device, the tailwater treatment device is configured to be arranged at the junction of multiple aquaculture ponds, the tailwater treatment device is provided with multiple water inlets, multiple return parts, a sewage discharge part and a flushing discharge part, each of the water inlets is configured to be connected to each of the aquaculture ponds, each of the return parts is configured to be connected to each of the aquaculture ponds, and each of the return parts is arranged corresponding to each of the water inlets;

[0006] a waste treatment device, the flushing discharge portion and the sewage discharge portion are both connected to the waste treatment device; and

[0007] A controller, each of the water inlets, each of the return portions and the flushing discharge portion are connected to the controller, the controller is configured to selectively open one of the water inlets, and the controller is also configured to selectively open the flushing discharge portion or the return portion corresponding to the water inlet portion when the water inlet portion is opened.

[0008] In a possible implementation of the first aspect, the controller is configured to open only one of the water inlets, and when the water inlet is opened, first open the flushing discharge part and close all the return parts, and then open the return part corresponding to the water inlet and close the flushing discharge part.

[0009] In a possible implementation of the first aspect, the one-to-many tailwater treatment system further includes a timing module, the timing module is connected to the controller, the water inlet has a rated flow rate, and the timing module is configured to start timing after the water inlet is opened to obtain a cumulative duration;

[0010] The controller is also configured to open the flushing drain and close all the return drains when the accumulated time is less than a preset time threshold, and to open the corresponding return drain and close the flushing drain when the accumulated time is equal to or greater than the preset time threshold.

[0011] In a possible implementation of the first aspect, the one-to-many tailwater treatment system further includes a plurality of water quality detectors, each of which is connected to the controller, and each of which is configured to detect a water quality value of each of the aquaculture ponds;

[0012] The controller is also configured to open the corresponding water inlet when the water quality value is equal to or greater than a preset trigger threshold.

[0013] In a possible implementation of the first aspect, the controller is further configured to compare the water quality values ​​of each of the breeding ponds, and set the opening order of each of the water inlets according to the order of the water quality values ​​of each of the breeding ponds.

[0014] In a possible implementation of the first aspect, the tailwater treatment device includes:

[0015] A shell having a hollow structure;

[0016] A cyclone, the cyclone being disposed in the housing, the cyclone being wide at the top and narrow at the bottom and having a cyclone inlet at the top and an underflow outlet at the bottom; and

[0017] A liquid collecting cone is arranged in the shell, the liquid collecting cone is narrow at the top and wide at the bottom, has an overflow port at the top and a collecting port at the bottom, the collecting port is located above the vortex inlet, and a sealed cavity is defined between the vortex inlet and the collecting port; each of the return parts and the flushing discharge part is connected to the overflow port, the sewage discharge part is connected to the bottom flow port, and each of the water inlet parts is connected to the sealed cavity.

[0018] In a possible implementation of the first aspect, each of the water inlet parts includes a water inlet pipe and a first water pump, each of the first water pumps is configured to extract water from each of the breeding ponds, an outlet end of each of the first water pumps is connected to each of the sealed cavities through each of the water inlet pipes, and each of the first water pumps is connected to the controller;

[0019] And / or, each of the return parts comprises a return pipe, a first valve and a foam separator, each of the foam separators is configured to be located on each of the breeding ponds, each of the foam separators is connected to the overflow port through each of the return pipes, each of the first valves is respectively arranged on each of the return pipes, and each of the first valves is connected to the controller;

[0020] And / or, the flushing discharge part includes a flushing discharge pipe and a second valve, the overflow port is connected to the waste treatment device through the flushing discharge pipe, the second valve is arranged on the flushing discharge pipe, and the second valve is connected to the controller;

[0021] And / or, the sewage discharge part is a sewage discharge pipe, and the sewage discharge pipe is connected to the bottom flow outlet.

[0022] In a possible implementation of the first aspect, the waste treatment device includes:

[0023] A multi-stage septic tank, in the treatment direction of the multi-stage septic tank, a septic tank inlet is provided at the beginning of the multi-stage septic tank, the sewage discharge part and the flushing discharge part are connected to the septic tank inlet, and a septic tank outlet is provided at the end of the multi-stage septic tank;

[0024] a denitrification and dephosphorization filter having a treatment inlet; and

[0025] A second water pump, the denitrification and phosphorus removal filter and the septic tank are both connected to the second water pump, the second water pump is connected to the controller, the second water pump is configured to pump water to the treatment inlet through the septic tank outlet, and the controller is also configured to control the second water pump to start when the flushing discharge part is opened.

[0026] In a second aspect, an embodiment of the present application discloses a tailwater treatment method, wherein the tailwater treatment method utilizes the one-to-many tailwater treatment system as described in the first aspect, and the tailwater treatment method comprises the following steps:

[0027] The controller selectively opens one of the water inlets; when the water inlet is opened, the controller selectively opens the flushing discharge part or the return discharge part corresponding to the water inlet, so that the tail water treatment device performs a pre-flushing step or a circulation treatment step on one of the breeding ponds.

[0028] In a possible implementation of the second aspect, the pre-flushing step includes: the controller controls one of the water inlet parts and the flushing discharge part to open, and closes all the return parts, so that water in one of the breeding ponds enters the tail water treatment device from the water inlet part as a flushing liquid, and the flushing liquid flushes the tail water treatment device and then is discharged from the flushing discharge part and the sewage discharge part to the waste treatment device;

[0029] When the volume of the flushing liquid is greater than or equal to a preset volume threshold, the pre-flushing step is ended and the circulation treatment step is started;

[0030] The circulation treatment step includes: when the water inlet is opened, the controller controls the flushing discharge part to be closed, and controls the return part corresponding to the water inlet to be opened, so that the tail water treatment device circulates the water of one of the breeding ponds.

[0031] Compared with the prior art, the beneficial effect of the present application is that when the one-to-many tailwater treatment system performs water treatment, the controller selectively opens one of the water inlets, and the water from one of the aquaculture ponds enters the tailwater treatment device through the opened water inlet. When the water inlet is opened, the controller selectively opens the flushing discharge part or the return discharge part corresponding to the water inlet. Specifically, when both the water inlet and the flushing discharge part are opened, the water from the aquaculture pond enters from the water inlet, flushes the tailwater treatment device, and then is discharged from the flushing discharge part, that is, the pre-flushing step; when the water inlet and the return discharge part corresponding to the water inlet are opened, the water from the aquaculture pond enters the tailwater treatment device from the water inlet for purification treatment, and then is returned to the aquaculture pond through the return discharge part, that is, the circulation treatment step. The tailwater treatment device is cleaned by the pre-flushing step to remove the residues of the previous treatment in the tailwater treatment device, and when the circulation treatment step is performed, the water returned to the aquaculture pond contains fewer external impurities, thereby avoiding mutual influence of water quality.

[0032] To summarize, the one-to-many tailwater treatment system of the present application cleans the tailwater treatment device through a pre-flushing step to remove the residues from the previous treatment, thereby solving the problem of mutual influence of water quality when one device treats multiple aquaculture ponds, thereby reducing the cost of aquaculture equipment and improving equipment utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1A schematic diagram of the structure of a one-to-many tailwater treatment system disclosed in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of the connection between the water inlet, the return and the flushing and discharging part and the controller disclosed in the embodiment of the present application;

[0036] Figure 3 A schematic diagram of the connection between the timing module and the controller disclosed in the embodiment of the present application;

[0037] Figure 4 A schematic diagram of the connection between the water quality detector and the controller disclosed in the embodiment of the present application;

[0038] Figure 5 It is another structural schematic diagram of a one-to-many tailwater treatment system disclosed in an embodiment of the present application;

[0039] Figure 6 This is a schematic diagram of the connection between the first water pump, the first valve, the second valve and the controller disclosed in the embodiment of the present application.

[0040] Description of reference numerals:

[0041] 100. One-to-many tailwater treatment system; 110. Tailwater treatment device; 111. Shell; 112. Cyclone; 1121. Cyclone inlet; 1122. Underflow outlet; 113. Liquid collection cone; 1131. Overflow outlet; 1132. Collection outlet; 115. Sealed cavity; 120. Waste treatment device; 121. Multi-stage septic tank; 1211. Septic tank inlet; 1212. Septic tank outlet; 122. Denitrification and phosphorus removal filter; 1221. Treatment Inlet; 123, second water pump; 130, controller; 140, water inlet; 141, water inlet pipe; 142, first water pump; 150, return section; 151, return pipe; 152, first valve; 153, foam separator; 160, sewage discharge section; 170, flushing discharge section; 171, flushing discharge pipe; 172, second valve; 180, timing module; 190, water quality detector; 200, breeding pond; 210, common pond base. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In this application, the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0044] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0045] In addition, the terms "disposed", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0047] The technical solution of the present invention will be described below in conjunction with embodiments and drawings.

[0048] First, please combine Figure 1 and Figure 2 The embodiment of the present application discloses a one-to-many tailwater treatment system 100 , including a tailwater treatment device 110 , a waste treatment device 120 , and a controller 130 .

[0049] The tailwater treatment device 110 is configured to be arranged at the junction of multiple breeding ponds 200. Exemplarily, the breeding pond 200 can be a fish pond or a shrimp pond. The tailwater treatment device 110 can be a cyclone device, a sedimentation device or a filtering device. The tailwater treatment device 110 is arranged on a common pond foundation at the junction of two breeding ponds 200, or the tailwater treatment device 110 is arranged at the intersection of the pond foundations at the junction of four breeding ponds 200. In this way, the distance from the tailwater treatment device 110 to each breeding pond 200 is relatively short to shorten the length of the pipeline.

[0050] The tailwater treatment device 110 is provided with a plurality of water inlets 140, a plurality of return discharge portions 150, a sewage discharge portion 160 and a flushing discharge portion 170, each water inlet 140 is configured to be connected to each aquaculture pond 200, each return discharge portion 150 is configured to be connected to each aquaculture pond 200, and each return discharge portion 150 is arranged corresponding to each water inlet 140. Both the flushing discharge portion 170 and the sewage discharge portion 160 are connected to the waste treatment device 120.

[0051] Each water inlet 140 , each return portion 150 and flushing discharge portion 170 are connected to the controller 130 , and the controller 130 is configured to selectively open one of the water inlets 140 . The controller 130 is also configured to selectively open the flushing discharge portion 170 or the return portion 150 corresponding to the water inlet 140 when the water inlet 140 is opened.

[0052] When the one-to-many tailwater treatment system 100 performs water treatment, the controller 130 selectively opens one of the water inlets 140, and the water from one of the aquaculture ponds 200 enters the tailwater treatment device 110 through the opened water inlet 140. When the water inlet 140 is opened, the controller 130 selectively opens the flushing discharge part 170 or the return discharge part 150 corresponding to the water inlet 140. Specifically, when both the water inlet 140 and the flushing discharge part 170 are opened, the water from the aquaculture pond 200 enters from the water inlet 140, flushes the tailwater treatment device 110, and then is discharged from the flushing discharge part 170, i.e., the pre-flushing step. When the water inlet 140 and the return discharge part 150 corresponding to the water inlet 140 are opened, the water from the aquaculture pond 200 enters the tailwater treatment device 110 from the water inlet 140 for purification treatment, and then is returned to the aquaculture pond 200 through the return discharge part 150, i.e., the circulation treatment step. The tailwater treatment device 110 is cleaned by the pre-rinsing step to remove the residues of the previous treatment in the tailwater treatment device 110. When the circulation treatment step is performed, the water discharged back to the breeding pond 200 contains fewer external impurities, thereby avoiding mutual influence of water quality.

[0053] To summarize, the one-to-many tailwater treatment system 100 of the present application cleans the tailwater treatment device 110 through a pre-flushing step to remove residues from the previous treatment, thereby solving the problem of mutual influence of water quality when one device treats multiple aquaculture ponds 200, thereby reducing the cost of aquaculture equipment and improving equipment utilization.

[0054] In some embodiments, please combine Figure 1 and Figure 2, the controller 130 is configured to open only one of the water inlets 140, and when the water inlet 140 is opened, first open the flushing discharge part 170 and close all the return parts 150, then open the return part 150 corresponding to the water inlet 140 and close the flushing discharge part 170. In other words, the controller 130 controls the tailwater treatment device 110 to first perform a pretreatment step to remove external impurities in the tailwater treatment device 110, and then perform a circulation treatment step.

[0055] Preferably, if Figure 3 As shown, the one-to-many tailwater treatment system 100 also includes a timing module 180, which is connected to the controller 130. The water inlet 140 has a rated flow rate, and the timing module 180 is configured to start timing after the water inlet 140 is opened to obtain a cumulative duration.

[0056] The controller 130 is further configured to open the flushing drain 170 and close all the return drains 150 when the accumulated time is less than a preset time threshold, and to open the corresponding return drain 150 and close the flushing drain 170 when the accumulated time is equal to or greater than the preset time threshold.

[0057] The inventors have found that in the pre-rinsing step, the water used for flushing needs to reach a certain volume to have a good flushing effect. Since the water inlet 140 has a rated flow rate, when the accumulated time is equal to or greater than the preset time threshold, the volume of water input from the water inlet 140 reaches the required volume.

[0058] In more detail, the volume of water required for pre-rinsing is 2m 3 For example, if the rated flow rate of the water inlet 140 is 1m 3 / h, the preset time threshold is 2h. After the water inlet 140 is opened for 2h, the controller 130 controls the corresponding return part 150 to open and controls the flushing discharge part 170 to close, so as to end the pre-cleaning and start the circulation process.

[0059] The one-to-many tailwater treatment system 100 determines whether the water used for pre-flushing reaches the required volume by timing when the water inlet 140 has a rated flow rate, thereby obtaining a better pre-flushing effect. Of course, as another example, instead of using a timing method, a cumulative flow meter can be used to determine whether the water used for pre-flushing reaches the required volume, thereby controlling the amount of water used for pre-flushing when the flow rate of the water inlet is not fixed, thereby obtaining a better flushing effect.

[0060] In some embodiments, Figure 1 and Figure 4As shown, the one-to-many tailwater treatment system 100 further includes a plurality of water quality detectors 190. Each water quality detector 190 is connected to the controller 130, and each water quality detector 190 is configured to detect the water quality value of each breeding pond 200, respectively. Each water quality detector 190 can be suspended or immersed in each breeding pond 200 to detect the water quality value of each breeding pond 200. The controller 130 is also configured to open the corresponding water inlet 140 when the water quality value is equal to or greater than a preset trigger threshold.

[0061] Exemplarily, the water quality value detected by the water quality detector 190 may be any one or more of turbidity, total phosphorus, total nitrogen, pH value or dissolved oxygen. Taking turbidity as an example, the control process of the controller 130 is described: when the turbidity of the breeding pond 200 is equal to or greater than a preset trigger threshold, the controller 130 controls the water inlet 140 connected to the breeding pond 200 to open, and automatically starts water treatment for the breeding pond 200 with excessive water quality values.

[0062] Preferably, the controller 130 is further configured to compare the water quality values ​​of each breeding pond 200, and set the opening order of each water inlet 140 according to the water quality values ​​of each breeding pond 200. For example, if the turbidity of the first breeding pond is 30NTU and the turbidity of the second breeding pond is 40NTU, the controller 130 compares the turbidity of the first breeding pond and the second breeding pond, and the result is that the turbidity of the second breeding pond is higher than the turbidity of the first breeding pond, then the controller 130 sets the opening order of each water inlet 140 as follows: the water inlet 140 connected to the second breeding pond is opened first, and after the water treatment of the second breeding pond is completed, the water inlet 140 connected to the first breeding pond is opened. In this way, the order of water treatment can be optimized according to the urgency of water treatment of each breeding pond 200, and the water treatment process can be optimized.

[0063] In some embodiments, see Figure 1 and Figure 5 The tailwater treatment device 110 includes a shell 111, a cyclone 112 and a liquid collecting cone 113.

[0064] The housing 111 is a hollow structure. The cyclone 112 is disposed in the housing 111. Figure 5 In the Z0 - Z12 direction shown in FIG, the cyclone 112 which is wide at the top and narrow at the bottom has a cyclone inlet 1121 at the top and a bottom flow outlet 1122 at the bottom.

[0065] The liquid collecting cone 113 is disposed in the housing 111. The liquid collecting cone 113, which is narrow at the top and wide at the bottom, has an overflow port 1131 at the top and a collecting port 1132 at the bottom. The collecting port 1132 is located above the vortex inlet 1121. A sealed cavity 115 is defined between the vortex inlet 1121 and the collecting port 1132. Each return portion 150 and the flushing discharge portion 170 are connected to the overflow port 1131, the sewage discharge portion 160 is connected to the bottom flow port 1122, and each water inlet portion 140 is connected to the sealed cavity 115.

[0066] It can be understood that when the water to be treated enters the sealed cavity 115 from the water inlet 140 at a certain pressure, most of the coarse particles in the water are deposited downwards by centrifugal sedimentation and discharged through the bottom flow port 1122 of the cyclone 112, thereby achieving the purpose of separation and classification. The purified water flows upwards through the collection port 1132 into the liquid collection cone 113, and is ejected from the overflow port 1131 after being pressurized by the liquid collection cone 113.

[0067] Optionally, combine Figure 1 , Figure 5 and Figure 6 Each water inlet 140 includes a water inlet pipe 141 and a first water pump 142. Each first water pump 142 is configured to extract water from each breeding pond 200. The outlet end of each first water pump 142 is connected to each sealed cavity 115 through each water inlet pipe 141, and each first water pump 142 is connected to the controller 130. In other words, the controller 130 controls the switch of the water inlet 140 by controlling the switch of the first water pump 142. The first water pump 142 has a rated flow rate, and the timing module 180 is configured to start timing after the first water pump 142 is turned on to obtain the accumulated time.

[0068] Optionally, each return section 150 includes a return pipe 151, a first valve 152 and a foam separator 153, each foam separator 153 is configured to be located on each aquaculture pond 200, each foam separator 153 is connected to the overflow port 1131 through each return pipe 151, each first valve 152 is respectively arranged on each return pipe 151, and each first valve 152 is connected to the controller 130. In other words, the controller 130 controls the switch of the return section 150 by controlling the switch of the first valve 152. The water discharged from the overflow port 1131 enters the foam separator 153 through the return pipe 151, and is returned to the aquaculture pond 200 after the foam is separated by the foam separator 153.

[0069] Optionally, the flushing discharge part 170 includes a flushing discharge pipe 171 and a second valve 172, the overflow port 1131 is connected to the waste treatment device 120 through the flushing discharge pipe 171, and the second valve 172 is disposed on the flushing discharge pipe 171, and the second valve 172 is connected to the controller 130. In other words, the controller 130 controls the opening and closing of the flushing discharge part 170 by controlling the opening and closing of the second valve 172, and in the pre-flushing step, the water discharged from the overflow port 1131 flows into the waste treatment device 120 through the flushing discharge pipe 171.

[0070] Optionally, the sewage discharge part 160 is a sewage discharge pipe, which is connected to the underflow port 1122. It is understandable that in the pre-rinsing step and the circulation treatment step, the waste in the underflow port 1122 will be discharged into the waste treatment device 120 through the sewage discharge pipe.

[0071] In some embodiments, Figure 5 As shown, the waste treatment device 120 includes a multi-stage septic tank 121 , a denitrification and phosphorus removal filter 122 , and a second water pump 123 .

[0072] The treatment direction of multi-stage septic tank 121 is as follows Figure 5 In the X0-X1 direction shown in the figure, in the treatment direction of the multi-stage septic tank 121, a septic tank inlet 1211 is provided at the beginning of the multi-stage septic tank 121, a sewage discharge part 160 and a flushing discharge part 170 are connected to the septic tank inlet 1211, and a septic tank outlet 1212 is provided at the end of the multi-stage septic tank 121. The denitrification and phosphorus removal filter 122 has a treatment inlet 1221. The multi-stage septic tank 121 has sufficient capacity to accommodate the waste liquid discharged during the pre-flushing of the tailwater treatment device 110. The function of the multi-stage septic tank 121 is to further treat the waste liquid discharged during the pre-flushing of the tailwater treatment device 110 and the solid-liquid mixture discharged during the circulation treatment.

[0073] The denitrification and phosphorus removal filter 122 and the septic tank are both connected to the second pump 123, and the second pump 123 is connected to the controller 130. The second pump 123 is configured to pump water to the treatment inlet 1221 through the septic tank outlet 1212. The controller 130 is also configured to control the second pump 123 to open when the flushing discharge part 170 is opened. When the flushing discharge part 170 is opened, the waste liquid discharged after the pre-flushing of the tailwater treatment device 110 is injected into the multi-stage septic tank 121 in large quantities. In order to make the multi-stage septic tank 121 have enough capacity to accommodate the waste liquid, the controller 130 controls the second pump 123 to open, so that the liquid in the multi-stage septic tank 121 is pumped into the denitrification and phosphorus removal filter 122 through the second pump 123 for filtration, and discharged after reaching the standard.

[0074] In a second aspect, an embodiment of the present application discloses a tailwater treatment method, which utilizes the one-to-many tailwater treatment system of the first aspect, and the tailwater treatment method comprises the following steps:

[0075] The controller selectively opens one of the water inlets; when the water inlet is opened, the controller selectively opens the flushing discharge part or the return discharge part corresponding to the water inlet, so that the tailwater treatment device performs a pre-flushing step or a circulation treatment step on one of the breeding ponds.

[0076] The pre-rinsing step is used to rinse the tailwater treatment device to remove residues in the tailwater treatment device and avoid mutual influence of water quality. The circulation treatment step is that the tailwater treatment device circulates the water of the aquaculture pond, and the treated water is discharged back to the aquaculture pond to save aquaculture water. It should be noted that there is no specific order of precedence between the pre-rinsing step and the circulation treatment step. In the tailwater treatment method, the circulation treatment step can be performed first and then the pre-rinsing step. The tailwater treatment method can also only perform the circulation treatment step on one aquaculture pond, or only perform the pre-rinsing step.

[0077] Preferably, the tail water treatment method first cleans the tail water treatment device through a pre-rinsing step to remove the residues of the previous treatment in the tail water treatment device, and then when performing the circulation treatment step, the water discharged back to the breeding pond contains fewer external impurities, thereby avoiding mutual influence of water quality.

[0078] Optionally, the pre-flushing step includes: a controller controls one of the water inlet and the flushing discharge to open, and closes all the return discharge parts, so that water in one of the aquaculture ponds enters the tailwater treatment device from the water inlet as a flushing liquid, and the flushing liquid flushes the tailwater treatment device and then is discharged from the flushing discharge part and the sewage discharge part to the waste treatment device;

[0079] When the volume of the flushing liquid is greater than or equal to a preset volume threshold, the pre-flushing step is ended and the circulation treatment step is started;

[0080] The circulation treatment step includes: when the water inlet is opened, the controller controls the flushing discharge part to be closed, and controls the return discharge part corresponding to the water inlet to be opened, so that the tail water treatment device circulates the water of one of the breeding ponds.

[0081] The method for determining whether the volume of the flushing liquid is greater than or equal to the preset volume threshold is to obtain the cumulative time by timing with the above-mentioned timing module. When the water inlet has a rated flow rate, when the cumulative time is equal to or greater than the preset time threshold, the volume of the flushing liquid is greater than or equal to the preset volume threshold.

[0082] In other words, the tail water treatment method first performs a pretreatment step to remove external impurities in the tail water treatment device, and then performs a circulation treatment step, which solves the problem of mutual influence of water quality when one device treats multiple aquaculture ponds, thereby reducing the cost of aquaculture equipment and improving equipment utilization.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. One-to-many tailwater treatment system, characterized in that: include: A tailwater treatment device, the tailwater treatment device is configured to be arranged at the junction of multiple aquaculture ponds, the tailwater treatment device is provided with multiple water inlets, multiple return parts, a sewage discharge part and a flushing discharge part, each of the water inlets is configured to be connected to each of the aquaculture ponds, each of the return parts is configured to be connected to each of the aquaculture ponds, and each of the return parts is arranged corresponding to each of the water inlets; a waste treatment device, wherein the flushing discharge portion and the sewage discharge portion are both connected to the waste treatment device; as well as A controller, each of the water inlets, each of the return portions and the flushing discharge portion are connected to the controller, the controller is configured to selectively open one of the water inlets, and the controller is also configured to selectively open the flushing discharge portion or the return portion corresponding to the water inlet portion when the water inlet portion is opened.

2. The one-to-many tailwater treatment system according to claim 1, characterized in that: The controller is configured to open only one of the water inlets, and when the water inlet is opened, first open the flushing discharge part and close all the return parts, and then open the return part corresponding to the water inlet and close the flushing discharge part.

3. The one-to-many tailwater treatment system according to claim 2, characterized in that: The one-to-many tailwater treatment system further includes a timing module, the timing module is connected to the controller, the water inlet has a rated flow rate, and the timing module is configured to start timing after the water inlet is opened to obtain a cumulative duration; The controller is also configured to open the flushing drain and close all the return drains when the accumulated time is less than a preset time threshold, and to open the corresponding return drain and close the flushing drain when the accumulated time is equal to or greater than the preset time threshold.

4. The one-to-many tailwater treatment system according to claim 1, characterized in that: The one-to-many tailwater treatment system further includes a plurality of water quality detectors, each of which is connected to the controller, and each of which is configured to detect the water quality value of each of the aquaculture ponds; The controller is also configured to open the corresponding water inlet when the water quality value is equal to or greater than a preset trigger threshold.

5. The one-to-many tailwater treatment system according to claim 4, characterized in that: The controller is also configured to compare the water quality values ​​of the respective breeding ponds, and set the opening sequence of the respective water inlets according to the order of the water quality values ​​of the respective breeding ponds.

6. The one-to-many tailwater treatment system according to claim 1, characterized in that: The tailwater treatment device comprises: A shell having a hollow structure; A cyclone, the cyclone being disposed in the housing, the cyclone being wide at the top and narrow at the bottom and having a cyclone inlet at the top and an underflow outlet at the bottom; and A liquid collecting cone is arranged in the shell, the liquid collecting cone is narrow at the top and wide at the bottom, has an overflow port at the top and a collecting port at the bottom, the collecting port is located above the vortex inlet, and a sealed cavity is defined between the vortex inlet and the collecting port; each of the return parts and the flushing discharge part is connected to the overflow port, the sewage discharge part is connected to the bottom flow port, and each of the water inlet parts is connected to the sealed cavity.

7. The one-to-many tailwater treatment system according to claim 6, characterized in that: Each of the water inlet parts comprises a water inlet pipe and a first water pump, each of the first water pumps is configured to extract water from each of the breeding ponds, an outlet end of each of the first water pumps is connected to each of the sealed cavities through each of the water inlet pipes, and each of the first water pumps is connected to the controller; And / or, each of the return parts comprises a return pipe, a first valve and a foam separator, each of the foam separators is configured to be located on each of the breeding ponds, each of the foam separators is connected to the overflow port through each of the return pipes, each of the first valves is respectively arranged on each of the return pipes, and each of the first valves is connected to the controller; And / or, the flushing discharge part includes a flushing discharge pipe and a second valve, the overflow port is connected to the waste treatment device through the flushing discharge pipe, the second valve is arranged on the flushing discharge pipe, and the second valve is connected to the controller; And / or, the sewage discharge part is a sewage discharge pipe, and the sewage discharge pipe is connected to the bottom flow outlet.

8. The one-to-many tailwater treatment system according to any one of claims 1 to 7, characterized in that: The waste treatment device comprises: A multi-stage septic tank, in the treatment direction of the multi-stage septic tank, a septic tank inlet is provided at the beginning of the multi-stage septic tank, the sewage discharge part and the flushing discharge part are connected to the septic tank inlet, and a septic tank outlet is provided at the end of the multi-stage septic tank; a denitrification and dephosphorization filter having a treatment inlet; and A second water pump, the denitrification and phosphorus removal filter and the septic tank are both connected to the second water pump, the second water pump is connected to the controller, the second water pump is configured to pump water to the treatment inlet through the septic tank outlet, and the controller is also configured to control the second water pump to start when the flushing discharge part is opened.

9. A method for treating tail water, characterized in that: The tailwater treatment method utilizes the one-to-many tailwater treatment system according to any one of claims 1 to 8, and the tailwater treatment method comprises the following steps: The controller selectively opens one of the water inlets; and The controller selectively opens the flushing discharge portion or the return portion corresponding to the water inlet portion, so that the tail water treatment device performs a pre-flushing step or a circulation treatment step on one of the breeding ponds.

10. The tail water treatment method according to claim 9, characterized in that: The pre-flushing step includes: the controller controls one of the water inlet and the flushing discharge part to open, and closes all the return parts, so that the water in one of the breeding ponds enters the tail water treatment device from the water inlet as a flushing liquid, and the flushing liquid flushes the tail water treatment device and then is discharged from the flushing discharge part and the sewage discharge part to the waste treatment device; When the volume of the flushing liquid is greater than or equal to a preset volume threshold, the pre-flushing step is ended and the circulation treatment step is started; The circulation treatment step includes: when the water inlet is opened, the controller controls the flushing discharge part to be closed, and controls the return part corresponding to the water inlet to be opened, so that the tail water treatment device circulates the water of one of the breeding ponds.

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