A tailwater treatment system

Abstract

The application relates to the technical field of water treatment systems, in particular to a tail water treatment system which comprises a liquid circulation supplement source, a water pump, a microbial tail water treatment device and a circulation pipeline. The water pump is provided with a water pump suction inlet and a water pump pressure outlet; the water pump suction inlet is communicated with a storage cavity. The microbial tail water treatment device is provided with a microbial treatment cavity, a water treatment inlet and a water treatment outlet. The water treatment inlet and the water treatment outlet are both communicated with the microbial treatment cavity, and the microbial treatment cavity is configured to accommodate microorganisms. The water treatment inlet is communicated with the water pump pressure outlet. The water treatment outlet is selectively communicated with the inlet of the circulation pipeline or the outside. The outlet of the circulation pipeline is communicated with the storage cavity. The water pump is configured to drive the circulation of the circulating liquid between the storage cavity and the microbial treatment cavity when the water treatment outlet is communicated with the inlet of the circulation pipeline, so that the microorganisms in the microbial treatment cavity are maintained active.

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] Biological treatment utilizes microorganisms from the natural environment to oxidize and decompose organic matter and certain inorganic toxins in wastewater, converting them into stable and harmless inorganic substances. Furthermore, to improve treatment efficiency, a large number of microorganisms can be concentrated inside a container to form a microbial wastewater treatment system. During treatment, wastewater is passed through this system, flowing through the areas where the microorganisms reside and undergoing a reaction to complete the treatment. However, if the microbial wastewater treatment system is interrupted by water or power outages and then restarted, the water treatment effect will deteriorate, or it may even become unable to treat wastewater. Summary of the Invention

[0003] This application discloses a wastewater treatment system that, when water treatment is stopped, can introduce a supplementary solution for culturing microorganisms through a water pump to maintain the growth and reproduction of microorganisms in the microbial treatment cavity, thereby maintaining the water treatment effect.

[0004] To achieve the above objectives, this application discloses a wastewater treatment system, comprising:

[0005] A liquid circulation replenishment source having a storage cavity configured to store circulating liquid for culturing microorganisms;

[0006] A water pump having a water pump inlet and a water pump outlet; the water pump inlet is connected to the storage cavity;

[0007] A microbial wastewater treatment device, comprising a microbial treatment cavity, a water treatment inlet, and a water treatment outlet, wherein both the water treatment inlet and the water treatment outlet are connected to the microbial treatment cavity, and the microbial treatment cavity is configured to contain microorganisms for wastewater treatment; the water treatment inlet is connected to the water pump outlet; and

[0008] A circulation pipe, wherein the water treatment outlet is selectively connected to the inlet of the circulation pipe or the outside, and the outlet of the circulation pipe is connected to the storage cavity;

[0009] The water pump is configured to drive the circulating liquid to circulate between the storage cavity and the microbial treatment cavity when the water treatment outlet is connected to the inlet of the circulation pipe.

[0010] Optionally, the wastewater treatment system further includes:

[0011] An aquaculture wastewater treatment device is configured to connect to an aquaculture water body to extract aquaculture wastewater from the aquaculture water body and separate solid residue and concentrated wastewater from the aquaculture wastewater; a storage cavity is connected to the aquaculture wastewater treatment device; and a liquid circulation replenishment source is configured to receive and process the solid residue and concentrated wastewater separated by the aquaculture wastewater treatment device; and

[0012] A shutdown sensing device is connected to the aquaculture wastewater treatment equipment, and the shutdown sensing device is configured to issue a power outage signal when it senses a power outage of the aquaculture wastewater treatment equipment.

[0013] A first controller is connected to both the shutdown sensing device and the water pump. The first controller is configured to control the water pump to start according to the power outage signal issued by the shutdown sensing device, and to control the water treatment outlet to connect to the circulation pipe.

[0014] Optionally, the liquid circulation replenishment source is a multi-stage septic tank, which includes multiple sub-septic tanks connected in sequence.

[0015] In the communication direction of the multiple sub-septic tanks, the sub-septic tank located at the beginning of the multi-stage septic tank is connected to the aquaculture wastewater treatment equipment.

[0016] Optionally, the wastewater treatment system further includes:

[0017] A first liquid level detection element is disposed within the storage cavity and configured to acquire first liquid level information within the storage cavity; and

[0018] The second controller is electrically connected to both the first liquid level detection element and the water pump. The second controller is configured to control the water pump to start based on the first liquid level information sent by the first liquid level detection element, and to control the water treatment outlet to connect to the circulation pipeline.

[0019] Optionally, the liquid circulation replenishment source is a multi-stage septic tank, which includes multiple sub-septic tanks connected in sequence.

[0020] In the communication direction of the plurality of sub-septic tanks, the first liquid level detection element is disposed in the sub-septic tank at the end of the multi-stage septic tank.

[0021] Optionally, the wastewater treatment system further includes:

[0022] A second liquid level detection element is disposed within the microbial treatment cavity, and the second liquid level detection element is configured to acquire second liquid level information within the microbial treatment cavity; and

[0023] The third controller, the second liquid level detection element, and the water pump are all electrically connected to the third controller. The third controller is configured to control the power or switch of the water pump based on the second liquid level information emitted by the second liquid level detection element.

[0024] Optionally, the wastewater treatment system further includes:

[0025] A backup power supply device is provided, wherein both the water pump and the microbial wastewater treatment equipment are electrically connected to the backup power supply device, and the backup power supply device is configured to supply power to the water pump and the microbial wastewater treatment equipment.

[0026] Optionally, the wastewater treatment system further includes an external discharge pipe, and the wastewater treatment outlet is selectively connected to the external discharge pipe or the circulation pipe; the wastewater treatment system further includes a first valve and a second valve, the first valve being disposed on the circulation pipe and the second valve being disposed on the external discharge pipe;

[0027] Alternatively, the wastewater treatment system may further include a three-way valve having a first inlet, a first outlet, and a second outlet. The wastewater treatment outlet is connected to the first inlet, and the first inlet is selectively connected to either the first outlet or the second outlet. The circulation pipe is connected to the first outlet, and the discharge pipe is connected to the second outlet.

[0028] Optionally, the liquid circulation replenishment source is a multi-stage septic tank, which includes multiple sub-septic tanks connected in sequence.

[0029] In the communication direction of the multiple sub-septic tanks, the sub-septic tank located at the end of the multi-stage septic tank is connected to the water pump inlet.

[0030] Optionally, in the communication direction of the multiple sub-septic tanks, the sub-septic tank located at the beginning of the multi-stage septic tank is also connected to the circulation pipe;

[0031] And / or, the number of the sub-septic tanks is four.

[0032] Compared with the prior art, the beneficial effects of this application are as follows: When the microbial wastewater treatment equipment of the wastewater treatment system stops treating wastewater, the water treatment outlet is connected to the circulation pipe. In other words, the water treatment outlet is disconnected from the outside and stops discharging, thus maintaining the liquid within the wastewater treatment system within a certain range. Furthermore, the water pump is configured to drive the circulating liquid to circulate between the storage cavity and the microbial treatment cavity when the water treatment outlet is connected to the inlet of the circulation pipe. This allows the circulating liquid to continuously provide liquid and nutrients to the microorganisms in the microbial treatment cavity, maintaining the activity of the microorganisms within the cavity and thus maintaining the water treatment effect of the microbial wastewater treatment equipment. Attached Figure Description

[0033] 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.

[0034] Figure 1 This is a schematic diagram of the structure of a wastewater treatment system disclosed in an embodiment of this application;

[0035] Figure 2 This is a schematic diagram showing the connection of the shutdown sensing device, the first controller, and the water pump disclosed in an embodiment of this application.

[0036] Figure 3 This is a schematic diagram showing the connection of the first liquid level detection element, the second controller, and the water pump disclosed in an embodiment of this application.

[0037] Figure 4 This is a schematic diagram showing the connection between the second liquid level detection element, the third controller, and the water pump disclosed in an embodiment of this application;

[0038] Figure 5 This is another structural schematic diagram of a wastewater treatment system disclosed in an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Wastewater treatment system; 110. Liquid circulation replenishment source; 111. Storage cavity; 112. Sub-septic tank; 113. First liquid level detection element; 120. Water pump; 121. Water pump inlet; 122. Water pump outlet; 130. Microbial wastewater treatment equipment; 131. Microbial treatment cavity; 132. Water treatment inlet; 133. Water treatment outlet; 134. Second liquid level detection element; 140. Circulation pipe; 141. First valve; 150. Aquaculture wastewater treatment equipment; 151. Shutdown sensor; 160a. First controller; 160b. Second controller; 160c. Third controller; 170. Backup power supply device; 180. Outflow pipe; 181. Second valve; 190. Three-way valve; 191. First inlet; 192. First outlet; 193. Second outlet; 200. Aquaculture water body. Detailed Implementation

[0041] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In this application, the terms "inner" and the like indicate 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 device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0043] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain 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.

[0044] 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 an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0045] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0046] When a microbial wastewater treatment system stops processing for a period of time due to water or power outages and then restarts, the water treatment effect deteriorates, or it may even fail to treat wastewater. The inventors discovered that this problem occurs because when the system stops processing due to power or water outages, the internal fluid supply is insufficient, causing the system to gradually dry out. This leads to the death of microorganisms that rely on a liquid environment for growth and reproduction due to lack of fluid and nutrients. The reduced number of microorganisms affects the effectiveness of subsequent water treatment cycles.

[0047] Based on the above analysis, this application discloses a wastewater treatment system. When the microbial wastewater treatment equipment of this system stops treating wastewater, the water treatment outlet is connected to a circulation pipe. In other words, the water treatment outlet is disconnected from the outside and discharge stops, maintaining the liquid level within the wastewater treatment system within a certain range. Furthermore, a water pump is configured to drive the circulating liquid to circulate between the storage cavity and the microbial treatment cavity when the water treatment outlet is connected to the circulation pipe. This continuously provides liquid and nutrients to the microorganisms in the microbial treatment cavity, maintaining their activity and thus maintaining the water treatment effect of the microbial wastewater treatment equipment.

[0048] The technical solution of the present invention will now be described in conjunction with the embodiments and accompanying drawings.

[0049] like Figure 1 As shown in the figure, this application discloses a wastewater treatment system 100, including a liquid circulation replenishment source 110, a water pump 120, a microbial wastewater treatment device 130, and a circulation pipeline 140.

[0050] The liquid circulation replenishment source 110 has a storage cavity 111 configured to store circulating liquid for culturing microorganisms.

[0051] The water pump 120 has a water pump inlet 121 and a water pump outlet 122. The water pump inlet 121 is connected to the storage cavity 111 to draw circulating liquid from the storage cavity 111.

[0052] The microbial wastewater treatment device 130 has a microbial treatment cavity 131, a water treatment inlet 132, and a water treatment outlet 133. Exemplarily, the microbial wastewater treatment device 130 includes a container, the inner wall of which defines the microbial treatment cavity 131. Both the water treatment inlet 132 and the water treatment outlet 133 are disposed on the container. Both the water treatment inlet 132 and the water treatment outlet 133 communicate with the microbial treatment cavity 131, which is configured to contain microorganisms for wastewater treatment. The water treatment inlet 132 communicates with a water pump outlet 122.

[0053] Water treatment outlet 133 is selectively connected to the inlet of circulation pipe 140 or the outside. The outlet of circulation pipe 140 is connected to storage cavity 111. Pump 120 is configured to drive circulating liquid between storage cavity 111 and microbial treatment cavity 131 when water treatment outlet 133 is connected to the inlet of circulation pipe 140.

[0054] When the microbial wastewater treatment device 130 of the wastewater treatment system 100 stops treating wastewater, the water treatment outlet 133 is connected to the circulation pipe 140. In other words, the water treatment outlet 133 is disconnected from the outside and stops discharging, keeping the liquid in the wastewater treatment system 100 within a certain range. Furthermore, the water pump 120 is configured to drive the circulating liquid to circulate between the storage cavity 111 and the microbial treatment cavity 131 when the water treatment outlet 133 is connected to the circulation pipe 140. This continuously provides the circulating liquid with liquid and nutrients to the microorganisms in the microbial treatment cavity 131, maintaining the activity of the microorganisms and thus maintaining the water treatment effect of the microbial wastewater treatment device 130.

[0055] In some embodiments, combined with Figure 1 and Figure 2 The wastewater treatment system 100 also includes aquaculture wastewater treatment equipment 150, a shutdown sensing device 151, and a first controller 160a.

[0056] The aquaculture wastewater treatment equipment 150 is configured to connect to the aquaculture water body 200 to extract aquaculture wastewater from the aquaculture water body 200 and separate solid residues and concentrated wastewater from it. Solid residues include, for example, aquaculture manure or feed residues. Concentrated wastewater refers to wastewater that has been concentrated, and it contains a higher level of waste. The aquaculture wastewater treatment equipment 150 in related technologies extracts wastewater from the bottom of the aquaculture water body 200 into the equipment, and then separates clean water, concentrated wastewater, and solid residues through cyclone separation and foam separation technologies. Furthermore, the aquaculture wastewater treatment equipment 150, the liquid circulation replenishment source 110, the water pump 120, the microbial wastewater treatment equipment 130, and the circulation pipeline 140 are all located on the bank of the aquaculture water body 200 to systematically treat the water in the aquaculture water body 200.

[0057] The storage cavity 111 is connected to the aquaculture wastewater treatment equipment 150, and the liquid circulation replenishment source 110 is configured to receive and process the solid residues and concentrated wastewater separated from the aquaculture wastewater treatment equipment 150. For example, the solid residues and concentrated wastewater are decomposed and pre-treated within the storage cavity 111.

[0058] A shutdown sensing device 151 is connected to the aquaculture wastewater treatment equipment 150. The shutdown sensing device 151 is configured to issue a power outage signal when it senses a power outage in the aquaculture wastewater treatment equipment 150. The shutdown sensing device 151 is, for example, a power failure sensor or power failure detector, used to sense a shutdown state of the aquaculture wastewater treatment equipment 150 caused by a power outage, or a shutdown state caused by an operator's manual shutdown.

[0059] like Figure 2 As shown, both the shutdown sensor 151 and the water pump 120 are connected to the first controller 160a. For example, the shutdown sensor 151 and the water pump 120 are electrically connected to the first controller 160a, or the shutdown sensor 151 and the water pump 120 are communicatively connected to the first controller 160a. The first controller 160a is configured to control the water pump 120 to start according to the power outage signal issued by the shutdown sensor 151, and to control the water treatment outlet 133 to connect to the circulation pipe 140.

[0060] One reason for water shortage in the microbial wastewater treatment equipment 130 is a power outage in the aquaculture wastewater treatment equipment 150, which leads to a lack of material replenishment in the liquid circulation replenishment source 110, thus preventing the formation of new circulating liquid input into the microbial wastewater treatment equipment 130. Therefore, the wastewater treatment system 100 monitors the power supply status of the aquaculture wastewater treatment equipment 150 through a shutdown sensor 151. When a power outage is detected in the aquaculture wastewater treatment equipment 150, a power outage signal is issued. The first controller 160a controls the water pump 120 to start based on the power outage signal issued by the shutdown sensor 151, and controls the water treatment outlet 133 to connect to the circulation pipe 140, thereby starting liquid circulation. When the aquaculture wastewater treatment equipment 150 is shut down due to power failure, circulating liquid is continuously replenished to the microbial wastewater treatment equipment 130.

[0061] Furthermore, referring to the return Figure 1The liquid circulation replenishment source 110 is a multi-stage septic tank, which includes multiple sub-septic tanks 112 connected in sequence. In the communication direction of the multiple sub-septic tanks 112, the sub-septic tank 112 located at the beginning of the multi-stage septic tank is connected to the aquaculture wastewater treatment equipment 150. The aquaculture wastewater treatment equipment 150 separates solid residue and concentrated wastewater, which first reaches the sub-septic tank 112 located at the beginning of the multi-stage septic tank. The solid residue decomposes at the bottom of the sub-septic tank 112, and the upper layer of water-soluble matter enters the next sub-septic tank 112. After multi-stage treatment by multiple sub-septic tanks 112, the liquid reaching the end of the multi-stage septic tank 112 has relatively few solid impurities and can be directly pumped into the microbial treatment cavity 131 to provide the liquid and nutrients required for microbial growth and maintain the unobstructed flow of the microbial treatment cavity 131.

[0062] In some embodiments, such as Figure 1 As shown, the liquid circulation replenishment source 110 is a multi-stage septic tank, which includes multiple sub-septic tanks 112 connected in sequence. In the communication direction of the multiple sub-septic tanks 112, the sub-septic tank 112 located at the end of the multi-stage septic tank is connected to the water pump suction port 121.

[0063] Solid residue and concentrated effluent first enter the sub-septic tank 112 located at the beginning of the multi-stage septic tank, and then pass through each sub-septic tank 112 in sequence according to the above-mentioned connection direction. After treatment, they are collected in the sub-septic tank 112 located at the end of the multi-stage septic tank. The liquid in the end sub-septic tank 112 has been filtered by sedimentation and contains fewer impurities, and can be directly pumped to the microbial treatment cavity 131 to supply microorganisms.

[0064] Furthermore, such as Figure 1 As shown, in the communication direction of the multiple sub-septic tanks 112, the sub-septic tank 112 located at the beginning of the multi-stage septic tank is also connected to the circulation pipe 140. The circulating liquid returning to the multi-stage septic tank through the circulation pipe 140 first flows into the beginning sub-septic tank 112, which can maintain the normal liquid in the multi-stage septic tank and reduce the disturbance caused by the circulating liquid, preventing a large amount of sediment at the bottom of the end sub-septic tank 112 from being washed away.

[0065] Furthermore, such as Figure 1 As shown, there are four sub-septic tanks 112. In other words, this multi-stage septic tank is a four-stage septic tank. The inventors have found that the liquid in the sub-septic tank 112 at the end of the four-stage septic tank has undergone sufficient sedimentation and filtration, with fewer impurities and sufficient nutrient content, making it particularly suitable as a makeup liquid.

[0066] In some embodiments, combined with Figure 1 and Figure 3As shown, the wastewater treatment system 100 also includes a first liquid level detection element 113 and a second controller 160b. The first liquid level detection element 113 is disposed in the storage cavity 111 and is configured to acquire first liquid level information in the storage cavity 111.

[0067] The first liquid level detection element 113 and the water pump 120 are both electrically connected to the second controller 160b. The second controller 160b is configured to control the water pump 120 to start according to the first liquid level information sent by the first liquid level detection element 113, and to control the water treatment outlet 133 to connect to the circulation pipe 140.

[0068] The inventors discovered that even when the power supply status of the aquaculture wastewater treatment equipment 150 is monitored through the shutdown sensor 151, a liquid shortage problem still occurs inside the microbial wastewater treatment equipment 130. Through research, the inventors found that the causes of this liquid shortage problem are: 1. The shutdown sensor 151 malfunctions, thus failing to detect the power outage status when the aquaculture wastewater treatment equipment 150 loses power; 2. The liquid circulation replenishment source 110 is blocked, resulting in insufficient liquid in the storage cavity 111.

[0069] When the liquid level in the storage cavity 111 is low, if the water treatment outlet 133 is still connected to the outside to discharge liquid, the lack of liquid in the storage cavity 111 will prevent the continuous output of circulating liquid to the microbial wastewater treatment device 130, resulting in a lack of liquid inside the microbial wastewater treatment device 130. Therefore, the wastewater treatment system 100 obtains the first liquid level information in the storage cavity 111 through the first liquid level detection element 113. The second controller 160b compares the first liquid level information with a preset liquid level value. When the first liquid level information is equal to or lower than the preset liquid level value, the second controller 160b controls the water pump 120 to start and controls the water treatment outlet 133 to connect to the circulation pipe 140, so that the water treatment outlet 133 stops discharging, and the water pump 120 drives the circulating liquid to circulate between the storage cavity 111 and the microbial treatment cavity 131. The combination of liquid level detection-based circulation and power failure detection-based circulation ensures the activity of microorganisms in the microbial treatment cavity 131.

[0070] Furthermore, such as Figure 1As shown, the liquid circulation replenishment source 110 is a multi-stage septic tank, which includes multiple sub-septic tanks 112 connected in sequence. In the communication direction of the multiple sub-septic tanks 112, a first liquid level detection element 113 is installed in the sub-septic tank 112 at the end of the multi-stage septic tank. Solid residue and concentrated effluent first enter the sub-septic tank 112 at the beginning of the multi-stage septic tank, and then pass through each sub-septic tank 112 sequentially in the aforementioned communication direction for processing, before converging into the sub-septic tank 112 at the end of the multi-stage septic tank. The liquid in the final sub-septic tank 112 has undergone sedimentation filtration, resulting in fewer impurities. A water pump 120 draws in the liquid from the final sub-septic tank 112; therefore, the first liquid level detection element 113 is installed in the final sub-septic tank 112 to more accurately obtain the liquid level of the usable liquid within the multi-stage septic tank.

[0071] In some embodiments, combined Figure 1 and Figure 4 The wastewater treatment system 100 also includes a second liquid level detection element 134 and a third controller 160c. The second liquid level detection element 134 is disposed in the microbial treatment cavity 131 and is configured to acquire second liquid level information in the microbial treatment cavity 131.

[0072] The second liquid level detection element 134 and the water pump 120 are both electrically connected to the third controller 160c. The third controller 160c is configured to control the power or switch of the water pump 120 according to the second liquid level information issued by the second liquid level detection element 134.

[0073] Even with the combination of level detection-based and power outage detection-based circulation modes, abnormal liquid levels may still occur in the microbial treatment cavity 131. Therefore, the wastewater treatment system 100 also utilizes a second level detection element 134 to monitor the liquid level within the microbial treatment cavity 131. A third controller 160c controls the power or switching of the water pump 120 based on the second level information emitted by the second level detection element 134. For example, if the second level information emitted by the second level detection element 134 is too high, the third controller 160c controls the water pump 120 to shut down or reduce its power, thus preventing excessively high liquid levels and reducing the energy consumption of the water pump 120. Conversely, if the second level information emitted by the second level detection element 134 is too low, the third controller 160c controls the water pump 120 to start or increase its power to prevent insufficient liquid in the microbial treatment cavity 131.

[0074] In some embodiments, referencing the back Figure 1The wastewater treatment system 100 also includes a backup power supply unit 170. The water pump 120 and the microbial wastewater treatment equipment 130 are both electrically connected to the backup power supply unit 170, which is configured to supply power to the water pump 120 and the microbial wastewater treatment equipment 130. For example, the backup power supply unit 170 may be a photovoltaic power generation device, a wind power generation device, an energy storage device, or a fossil fuel power generation device. Fossil fuel power generation devices are, for example, diesel generators or gasoline generators.

[0075] The inventors discovered that the reason why a power outage in the aquaculture wastewater treatment equipment 150 causes the microbial wastewater treatment equipment 130 to stop processing is that various devices such as the aquaculture wastewater treatment equipment and the microbial wastewater treatment equipment in related technologies are all powered by external sources. When the aquaculture wastewater treatment equipment loses power, the microbial wastewater treatment equipment and the water pump will also stop working due to the power outage. Therefore, the wastewater treatment system 100 of this application adds a backup power supply device 170. The backup power supply device 170 can independently supply power to the water pump 120 and the microbial wastewater treatment equipment 130. Thus, when the external power supply fails, the backup power supply device 170 provides power, allowing the water pump 120, the microbial wastewater treatment equipment 130, and the liquid circulation replenishment source 110 to form a circulation system. More specifically, the first controller 160a, the first liquid level detection element 113, the second controller 160b, the second liquid level detection element 134, and the third controller 160c can all be electrically connected to the backup power supply device 170 to have an independent power supply system.

[0076] In some embodiments, such as Figure 1 As shown, the wastewater treatment system 100 also includes an external discharge pipe 180, and the water treatment outlet 133 is selectively connected to the external discharge pipe 180 or the circulation pipe 140.

[0077] Optionally, the wastewater treatment system 100 further includes a first valve 141 and a second valve 181. The first valve 141 is installed on the circulation pipe 140, and the second valve 181 is installed on the discharge pipe 180. When the first valve 141 is open and the second valve 181 is closed, the water treatment outlet 133 is connected to the circulation pipe 140 and disconnected from the outside. When the first valve 141 is closed and the second valve 181 is open, the water treatment outlet 133 is connected to the outside and disconnected from the circulation pipe 140. More specifically, when the first valve 141 and the second valve 181 are electrical components such as solenoid valves, the first valve 141 and the second valve 181 can also be electrically connected to a backup power supply device 170.

[0078] Optionally, such as Figure 5As shown, the wastewater treatment system 100 also includes a three-way valve 190, which has a first inlet 191, a first outlet 192, and a second outlet 193. A water treatment outlet 133 is connected to the first inlet 191, which is selectively connected to either the first outlet 192 or the second outlet 193. A circulation pipe 140 is connected to the first outlet 192, and an external discharge pipe 180 is connected to the second outlet 193. When the first inlet 191 is connected to the first outlet 192 and disconnected from the second outlet 193, the water treatment outlet 133 is connected to the circulation pipe 140 and disconnected from the outside. When the first inlet 191 is connected to the second outlet 193 and disconnected from the first outlet 192, the water treatment outlet 133 is connected to the outside and disconnected from the circulation pipe 140. More specifically, when the three-way valve 190 is an electrical component, it can also be electrically connected to a backup power supply device 170.

[0079] 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 some or all of the technical features therein. 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 liquid circulation replenishment source having a storage cavity configured to store circulating liquid for culturing microorganisms; A water pump having a water pump inlet and a water pump outlet; The water pump inlet is connected to the storage cavity; A microbial wastewater treatment device, comprising a microbial treatment cavity, a water treatment inlet, and a water treatment outlet, wherein the water treatment inlet and the water treatment outlet are both connected to the microbial treatment cavity, and the microbial treatment cavity is configured to contain microorganisms for wastewater treatment; the water treatment inlet is connected to the water pump outlet. as well as A circulation pipe, wherein the water treatment outlet is selectively connected to the inlet of the circulation pipe or the outside, and the outlet of the circulation pipe is connected to the storage cavity; The water pump is configured to drive the circulating liquid to circulate between the storage cavity and the microbial treatment cavity when the water treatment outlet is connected to the inlet of the circulation pipe; The wastewater treatment system also includes: An aquaculture wastewater treatment device is configured to connect to an aquaculture water body to extract aquaculture wastewater from the aquaculture water body and separate solid residue and concentrated wastewater from the aquaculture wastewater; a storage cavity is connected to the aquaculture wastewater treatment device; and a liquid circulation replenishment source is configured to receive and process the solid residue and concentrated wastewater separated by the aquaculture wastewater treatment device; and A shutdown sensing device is connected to the aquaculture wastewater treatment equipment, and the shutdown sensing device is configured to issue a power outage signal when it senses a power outage of the aquaculture wastewater treatment equipment. The first controller is connected to both the shutdown sensing device and the water pump. The first controller is configured to control the water pump to start according to the power failure signal issued by the shutdown sensing device, and to control the water treatment outlet to connect to the circulation pipe, and to disconnect the water treatment outlet from the outside to stop external discharge. The liquid circulation replenishment source is a multi-stage septic tank, which includes multiple sub-septic tanks connected in sequence. In the communication direction of the multiple sub-septic tanks, the sub-septic tank located at the beginning of the multi-stage septic tank is connected to the aquaculture wastewater treatment equipment.

2. The wastewater treatment system according to claim 1, characterized in that, The wastewater treatment system also includes: A first liquid level detection element is disposed within the storage cavity and configured to acquire first liquid level information within the storage cavity; and The second controller is electrically connected to both the first liquid level detection element and the water pump. The second controller is configured to control the water pump to start based on the first liquid level information sent by the first liquid level detection element, and to control the water treatment outlet to connect to the circulation pipeline.

3. The wastewater treatment system according to claim 2, characterized in that, The liquid circulation replenishment source is a multi-stage septic tank, which includes multiple sub-septic tanks connected in sequence. In the communication direction of the plurality of sub-septic tanks, the first liquid level detection element is disposed in the sub-septic tank at the end of the multi-stage septic tank.

4. The wastewater treatment system according to claim 1, characterized in that, The wastewater treatment system also includes: A second liquid level detection element is disposed within the microbial treatment cavity, and the second liquid level detection element is configured to acquire second liquid level information within the microbial treatment cavity; and The third controller, the second liquid level detection element, and the water pump are all electrically connected to the third controller. The third controller is configured to control the power or switch of the water pump based on the second liquid level information emitted by the second liquid level detection element.

5. The effluent treatment system according to any one of claims 1 to 4, characterized in that, The wastewater treatment system also includes: A backup power supply device is provided, wherein both the water pump and the microbial wastewater treatment equipment are electrically connected to the backup power supply device, and the backup power supply device is configured to supply power to the water pump and the microbial wastewater treatment equipment.

6. The effluent treatment system according to any one of claims 1 to 4, characterized in that, The wastewater treatment system also includes an external discharge pipe, and the wastewater treatment outlet is selectively connected to the external discharge pipe or the circulation pipe; the wastewater treatment system also includes a first valve and a second valve, the first valve being installed on the circulation pipe and the second valve being installed on the external discharge pipe; Alternatively, the wastewater treatment system may further include a three-way valve having a first inlet, a first outlet, and a second outlet. The wastewater treatment outlet is connected to the first inlet, and the first inlet is selectively connected to either the first outlet or the second outlet. The circulation pipe is connected to the first outlet, and the discharge pipe is connected to the second outlet.

7. The wastewater treatment system according to any one of claims 1 to 4, characterized in that, The liquid circulation replenishment source is a multi-stage septic tank, which includes multiple sub-septic tanks connected in sequence. In the communication direction of the multiple sub-septic tanks, the sub-septic tank located at the end of the multi-stage septic tank is connected to the water pump inlet.

8. The wastewater treatment system according to claim 7, characterized in that, In the communication direction of the multiple sub-septic tanks, the sub-septic tank located at the beginning of the multi-stage septic tank is also connected to the circulation pipe; And / or, the number of the sub-septic tanks is four.

Images