A wastewater treatment system

Abstract

This invention relates to a wastewater treatment system, comprising: a raw slurry tank; a mixing tank; and a wastewater monitoring device for real-time monitoring of wastewater concentration in the mixing tank. The wastewater monitoring device includes a flow stabilizing container, which is provided with a first inlet, a flow stabilizing outlet, and a first overflow outlet. When the wastewater in the flow stabilizing container is in an overflow state, the wastewater flows out from the flow stabilizing outlet at a constant flow rate. A weighing scale includes a weighing container, which is provided with a second inlet, an outlet, and a second overflow outlet. Wastewater flowing out from the outlet flows into the mixing tank. The second inlet is used to receive wastewater flowing out from the flow stabilizing outlet at a constant flow rate. The flow rate of wastewater flowing out from the flow stabilizing outlet is greater than the flow rate of wastewater flowing out from the outlet, so that the wastewater in the weighing container is in an overflow state. When the wastewater concentration in the raw slurry tank is lower than a first set concentration, the wastewater in the raw slurry tank is transported to the mixing tank. This invention can accurately detect wastewater concentration and achieve rapid wastewater mixing.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more particularly to wastewater treatment systems. Background Technology

[0002] Zero wastewater discharge is a challenging issue today, especially with increasingly stringent requirements for wastewater treatment in concrete mixing plants. The main sources of wastewater include wastewater from cleaning mixer trucks and substandard concrete.

[0003] To achieve zero wastewater discharge, people hope to utilize this wastewater in concrete mixing. However, wastewater contains a variety of complex substances, and its concentration has a significant impact on concrete performance. If wastewater with excessive concentrations is added to concrete, it may pose safety hazards to civil engineering structures and even cause major accidents. Therefore, it is necessary to obtain the precise wastewater concentration before adding it in order to adjust the amount of additives accordingly and ensure the performance of the concrete.

[0004] In related technologies, wastewater concentration is measured in the following ways: First, the concentration is monitored by measuring the wastewater in the wastewater tank with a measuring cup. However, the concentration may vary at different locations within the tank, making accurate measurement impossible. Another method involves placing a concentration detector in the wastewater tank to obtain precise data, but this detector becomes clogged with wastewater deposits after a period of time, causing measurement failure. In related technologies, wastewater is prepared as follows: First, the wastewater is weighed in a weighing tank to calculate its concentration. Based on this concentration, an appropriate amount of clean water is added to prepare wastewater meeting the standard concentration. Then, each prepared tank of wastewater is placed into a finished product tank. This method of preparing wastewater tank by tank is inconvenient and inefficient. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides a wastewater treatment system that can continuously and accurately measure wastewater concentration and rapidly adjust wastewater concentration.

[0006] This invention provides a wastewater treatment system, comprising: a raw slurry tank; a mixing tank; and a wastewater monitoring device connected to the mixing tank for real-time monitoring of wastewater concentration in the mixing tank. The wastewater monitoring device includes: a flow stabilizing container, which has a first inlet, a flow stabilizing outlet, and a first overflow outlet. The flow stabilizing outlet is located below the first overflow outlet. The first inlet is connected to the mixing tank. When the wastewater in the flow stabilizing container is in an overflow state, the wastewater flows out from the flow stabilizing outlet at a constant flow rate. A weighing scale includes a weighing container, which has a second inlet... The weighing container includes a water inlet, a water outlet, and a second overflow outlet. The water outlet is located below the second water inlet and the second overflow outlet. Wastewater flowing from the water outlet flows into the mixing tank. The second water inlet is located below the stabilizing inlet and is used to receive wastewater flowing out from the stabilizing inlet at a constant flow rate. The flow rate of wastewater flowing out from the stabilizing inlet is greater than the flow rate of wastewater flowing out from the water outlet, so that the wastewater in the weighing container is in an overflow state. When the wastewater concentration in the raw slurry tank is lower than a first set concentration, the wastewater in the raw slurry tank is transported to the mixing tank.

[0007] In some embodiments, the raw pulp tank and the flow stabilizing container may be selectively connected, and the wastewater monitoring device is also used to detect the wastewater concentration in the raw pulp tank.

[0008] In some embodiments, the system further includes: a thickening tank; a separation device, wherein the inlet of the separation device is selectively connected to the raw slurry tank, and the first outlet of the separation device is selectively connected to the raw slurry tank; and / or the first outlet of the separation device is selectively connected to the blending tank, and the second outlet of the separation device is connected to the thickening tank; wherein, when the wastewater concentration in the raw slurry tank is higher than or equal to the first set concentration, the inlet of the separation device is connected to the raw slurry tank, and the first outlet of the separation device is connected to the raw slurry tank and / or the blending tank, so that the wastewater in the raw slurry tank is transported to the separation device, so that the low-concentration wastewater discharged from the wastewater in the raw slurry tank via the first outlet of the separation device is transported to the raw slurry tank and / or the blending tank, and the high-concentration wastewater separated by the separation device from the wastewater in the raw slurry tank flows from the second outlet of the separation device to the thickening tank.

[0009] In some embodiments, the slurry tank is selectively connected to the flow stabilizing container, and the wastewater monitoring device is also used to detect the wastewater concentration in the slurry tank; the slurry tank is selectively connected to the inlet of the separation device; wherein, when the wastewater concentration in the slurry tank is lower than a second set concentration, the slurry tank is connected to the inlet of the separation device, the first outlet of the separation device is connected to the mixing tank and / or the raw slurry tank, the wastewater in the slurry tank is transported to the separation device, so that the low-concentration wastewater from the slurry tank is transported to the mixing tank and / or the raw slurry tank via the first outlet of the separation device, and the high-concentration wastewater from the slurry tank is separated by the separation device and flows from the second outlet of the separation device to the slurry tank.

[0010] In some embodiments, the thickening tank and the blending tank may be selectively connected; wherein, when the wastewater monitoring device detects that the wastewater concentration in the blending tank is lower than a set standard concentration, the wastewater in the thickening tank is transported to the blending tank.

[0011] In some embodiments, the mixing tank and the inlet of the separation device may be selectively connected; wherein, when the concentration in the mixing tank is higher than a preset standard concentration, the mixing tank is connected to the inlet of the separation device, and the first outlet of the separation device is connected to the raw slurry tank and / or the mixing tank, so that the low-concentration wastewater discharged from the wastewater in the mixing tank via the first outlet of the separation device is transported to the raw slurry tank and / or the mixing tank.

[0012] In some embodiments, the device further includes: a settling container having a top inlet, a bottom outlet, and a discharge port located between the top inlet and the bottom outlet; a first outlet of the separation device communicating with the top inlet, the bottom outlet communicating with the thickening tank, and the discharge port communicating with the raw slurry tank and / or the blending tank.

[0013] In some embodiments, the first overflow port is connected to a first overflow pipe, the second overflow port is connected to a second overflow pipe, and both the first overflow pipe and the second overflow pipe are connected to the mixing tank.

[0014] In some embodiments, the scale further includes: a support frame located above the mixing tank, the flow stabilizing container and the weighing container supported on the support frame, and the weighing container located below the flow stabilizing container; the weighing scale further includes a weight monitor, and the weighing container is suspended from the support frame by the weight monitor; or, the weight monitor is disposed between the support frame and the weighing container, and is supported on the support frame by the weight monitor.

[0015] In some embodiments, the system further includes: a sand and gravel separator connected to the raw slurry tank for separating sand and gravel from the wastewater and transporting the separated wastewater to the raw slurry tank; and a finished product tank connected to the blending tank for receiving the blended wastewater from the blending tank.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0017] This invention transports wastewater from the raw slurry tank to the mixing tank and uses a wastewater monitoring device to accurately detect the wastewater concentration in the mixing tank in real time. The system mixes wastewater while monitoring it, which is much faster and more efficient than the tank-by-tank mixing method in related technologies. In other words, the wastewater treatment system of this invention can accurately detect wastewater concentration and can quickly mix wastewater.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0019] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0020] Figure 1 This is a perspective view of a wastewater treatment system structure according to an exemplary embodiment of the present invention;

[0021] Figure 2 This is a block diagram of a wastewater treatment system according to an exemplary embodiment of the present invention;

[0022] Figure 3 This is illustrated in an exemplary embodiment of the present invention. Figure 2 Enlarged schematic diagram of the middle section structure;

[0023] Figure 4 This is illustrated in an exemplary embodiment of the present invention. Figure 1 3D view of wastewater monitoring device;

[0024] Figure 5 This is illustrated in an exemplary embodiment of the present invention. Figure 1 Front view of the wastewater monitoring device;

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] In the description of this invention, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] like Figures 1-5 As shown, the present invention provides a sewage treatment system, including a sewage mixing device and a sewage monitoring device 100. The sewage mixing device may include a raw slurry tank 210 and a mixing tank 230.

[0029] The wastewater monitoring device is connected to the mixing tank 230, enabling real-time and continuous accurate measurement of the wastewater concentration within the tank. Specifically, in conjunction with... Figure 3 and Figure 4 The wastewater monitoring device includes: a flow stabilizing container 10 and a weighing scale.

[0030] The flow stabilizing container 10 is provided with a first inlet 11, a flow stabilizing port 12, and a first overflow port 13. The first inlet 11, flow stabilizing port 12, and first overflow port 13 are all connected to the cavity of the flow stabilizing container 10. The first inlet 11 is connected to the mixing tank 230, and wastewater in the mixing tank 230 enters the flow stabilizing container 10 through the first inlet 11. The flow stabilizing port 12 is located below the first overflow port 13 and is used to allow wastewater in the flow stabilizing container 10 to flow out. The first overflow port 13 is used to overflow wastewater when the wastewater level in the flow stabilizing container 10 rises to the position of the first overflow port 13, so that the wastewater in the flow stabilizing container 10 is in an overflow state. Specifically, the flow rate of wastewater entering the flow stabilizing container 10 from the mixing tank 230 through the first inlet 11 is greater than the flow rate of wastewater flowing out through the flow stabilizing port 12, so that the wastewater level in the flow stabilizing container 10 can rise to or exceed the first overflow port 13, so that it overflows from the first overflow port 13. The process of sewage entering from the first inlet 11, overflowing from the first overflow port 13, and flowing out from the stabilizing port 12 occurs simultaneously (in real time), so that the sewage in the stabilizing container 10 can always be in an overflow state. Then, when the sewage in the stabilizing container 10 is in an overflow state, the sewage flows out from the stabilizing port 12 at a constant flow rate by its own gravity. That is, the flow rate of the sewage flowing out from the stabilizing port 12 is almost stable and will not change drastically.

[0031] The weighing scale is used to measure the weight of the weighing container 20 and the wastewater inside it, such as the weight of wastewater from the mixing tank 230. The weighing container 20 is provided with a second inlet 21, an outlet 22, and a second overflow 23, all of which communicate with the cavity of the weighing container 20. The outlet 22 is located below the second inlet 21 and the second overflow 23. The second inlet 21 is located below the stabilizing inlet 12 and is used to collect wastewater flowing out of the stabilizing inlet 12. The outlet 22 is used to drain the wastewater from the weighing container 20. The second overflow 23 is used to overflow wastewater when the wastewater level in the weighing container 20 reaches the position of the second overflow 23. The flow rate of wastewater flowing out of the stabilizing inlet 12 is greater than the flow rate of wastewater flowing out of the outlet 22, so that the wastewater in the weighing container 20 is in an overflow state.

[0032] Specifically, the sewage flowing out of the constant flow port 12 at a constant flow rate enters the weighing container 20 through the second inlet 21. Since the sewage flow rate from the constant flow port 12 is greater than the sewage flow rate from the outlet 22, the sewage level in the weighing container 20 can rise to the second overflow port 23 so that it can overflow from the first overflow port 13. The process of sewage entering the weighing container 20 from the second inlet 21, overflowing from the second overflow port 23, and flowing out from the outlet 22 is carried out simultaneously (in real time), so that the sewage in the weighing container 20 can always be in an overflow state. Furthermore, since the sewage flowing out from the constant flow port 12 flows out at a constant flow rate, that is, the sewage flow rate entering the weighing container 20 from the second inlet 21 is constant and uniform, the sewage level in the weighing container 20 can always remain stable. The sewage level in the overflow state in the weighing container 20 hardly changes, so the volume of sewage in the weighing container 20 remains almost unchanged. As a result, the measured weight of sewage in the weighing container 20 is more accurate, and the calculated sewage concentration, for example, in the mixing tank 230, is more precise.

[0033] The above-mentioned method for calculating wastewater concentration can be as follows: First, the weight of the weighing container 20 containing clean water is checked by passing clean water through the wastewater monitoring device. Then, the wastewater to be tested is passed through the wastewater monitoring device, and the weight of the weighing container 20 containing wastewater is measured using the same method. The difference between the two weights gives the wastewater concentration, which can be the solids content of the wastewater. Specifically, first, the weighing container 20 in the wastewater monitoring device is filled with clean water to obtain the initial weight. Then, the wastewater to be tested is passed through the wastewater monitoring device. The program is set to start calculating the concentration (density) after the initial weight is reached, thereby reducing meaningless data and improving efficiency. Alternatively, the above-mentioned method for calculating wastewater concentration can be as follows: directly measure the weight of the wastewater in the weighing container 20 in the wastewater monitoring device to obtain the wastewater concentration (density). Since the volume of the weighing container 20 is constant, the ratio of the weight (mass) of the wastewater in the weighing container 20 to the volume of the weighing container 20 gives the wastewater concentration (density).

[0034] Wastewater testing devices can be connected to a digital display to directly show concentration values, or concentration values ​​can be calculated by directly measuring the weight.

[0035] Specifically, the inventors discovered that in the wastewater monitoring devices of the relevant technology, if the flow rate of wastewater into the weighing container 20 is uneven, sometimes fast and sometimes slow, even if the wastewater in the weighing container 20 is in an overflowing state, it will cause changes in the wastewater level inside the weighing container 20, making it impossible to keep the wastewater level in the weighing container 20 constant. That is, the volume of wastewater in the weighing container 20 is variable, leading to inaccurate measurements. Especially in the scenario of measuring the weight of concrete slurry, the weighing container 20 has a large capacity, and its weight can reach tens of tons when fully loaded. Even a small change in the liquid level inside the weighing container 20 will cause a large change in the weight of the weighing container 20, resulting in inaccurate wastewater concentration measurements. Specifically, when the flow rate of sewage into the weighing container 20 is uneven, i.e., sometimes fast and sometimes slow, even if the sewage in the weighing container 20 is in an overflowing state, due to the surface tension of the sewage, when the flow rate of the sewage into the weighing container 20 is faster, the second overflow port 23 on the weighing container 20 cannot overflow in time, and the liquid level may even exceed the second overflow port 23, causing the sewage level in the weighing container 20 to rise, resulting in changes in the sewage level and inaccurate measurement. Similarly, when the flow rate of sewage into the weighing container 20 is slower, the sewage level in the weighing container 20 will drop compared to when the flow rate is faster, also causing changes in the sewage level and inaccurate measurement.

[0036] In summary, the inventors discovered that the stability of the sewage flow velocity into the weighing container 20 has a significant impact on the accuracy of the measurement results. This invention utilizes a flow-stabilizing container 10 that is continuously overflowing, ensuring a constant sewage flow velocity from the flow-stabilizing port 12. This constant flow velocity of sewage into the weighing container 20, which is also continuously overflowing, keeps the sewage level in the weighing container 20 almost constant, resulting in a nearly constant sewage volume. This allows for real-time, continuous, and accurate measurement of the weight of the sewage-containing weighing container 20, leading to more precise calculations of the sewage concentration.

[0037] Next, combined Figure 1 and Figure 2 The raw slurry tank 210 is used to contain wastewater sources, which can be wastewater generated after cleaning the mixer truck, wastewater from substandard concrete, etc. For example, a cleaning wastewater recovery tank can be set up on site, and the cleaning wastewater in it can be pumped to a sand and gravel separator and then recycled back to the raw slurry tank 210.

[0038] In one example, a filter plate can be installed in the raw slurry tank 210 to divide the raw slurry tank 210 into two receiving areas, such as a feeding area and a filtration area. The sewage source can first be poured into the feeding area, filtered by the filter plate, and then flow into the filtration area to filter out larger particulate matter in the sewage.

[0039] A first water pump 211 can be installed in the raw slurry tank 210 to transport the sewage in the raw slurry tank 10 to the required location.

[0040] The mixing tank 230 is used to adjust the concentration of wastewater. A wastewater monitoring device 100 is connected to the mixing tank 230 and is used to monitor the wastewater concentration within the mixing tank 230 in real time. For example, the wastewater monitoring device 100 can be located above the mixing tank 230. If the wastewater concentration in the mixing tank 230 meets the set standard concentration, the wastewater in the mixing tank 230 can be transported to the finished product tank 240 for use by the mixing plant.

[0041] When the wastewater concentration in the raw slurry tank 210 is lower than a first set concentration, the first water pump 211 transports the wastewater from the raw slurry tank 210 to the mixing tank 230. The first set concentration value can be lower than a set standard concentration. In this embodiment of the invention, a water pump can also be omitted, and the wastewater in the raw slurry tank 210 can flow into the mixing tank 230 by gravity. For example, the outlet of the raw slurry tank 210 can be higher than that of the mixing tank 230. The first set concentration can be set according to actual needs on site, for example, by preset concentration values ​​in the program, or by manually inputting the required concentration value.

[0042] When in use, the wastewater in the raw pulp tank 210 can be tested first. If the concentration of the wastewater in the raw pulp tank 210 is lower than the first set concentration, it means that it can be used directly. At this time, the wastewater in the raw pulp tank 210 can be directly transported to the mixing tank through the first water pump 211.

[0043] This invention uses a first water pump 211 or the gravity of the wastewater itself to transport wastewater from the raw slurry tank 210 to the mixing tank. A wastewater monitoring device 100 accurately monitors the wastewater concentration in the mixing tank in real time, allowing for simultaneous monitoring and mixing. Compared to the tank-by-tank mixing method in related technologies, this invention enables rapid mixing and significantly improves efficiency. In other words, the wastewater treatment system of this invention can accurately detect wastewater concentration and rapidly mix wastewater.

[0044] It is worth noting that, in various embodiments of the present invention, the sewage in each sewage tank (raw slurry tank 210, mixing tank 230, thickening tank 220) can be transported by pumping with a water pump or by utilizing the sewage's own gravity. In the following description, sewage is transported by pumping with a water pump, but this is not a limitation. It can be understood that in some possible embodiments, pumping may not be necessary, and the sewage can be transported to the desired sewage tank by its own gravity.

[0045] In one example, combining Figure 1 , Figure 2 and Figure 4As shown, the raw slurry tank 210 is selectively connected to the wastewater monitoring device 100 via the first water pump 11. Specifically, the raw slurry tank 210 is selectively connected to the flow stabilizing container 10. The wastewater monitoring device 100 is also used to detect the wastewater concentration within the raw slurry tank 210. In this text, selective connection means that the connection channel can be opened or closed. For example, the channel connecting the first water pump 211 to the flow stabilizing container 10 of the wastewater monitoring device 100 can be switched between open and closed; that is, the channel connecting the first water pump 211 to the wastewater monitoring device 100 can be connected or disconnected. For example, the first water pump 211 and the wastewater monitoring device 100 are connected via a first pipeline L1, and a solenoid valve is installed on the first pipeline L1. The selective connection between the first water pump 11 and the wastewater monitoring device 100 is achieved by opening and closing the solenoid valve. This invention can use a solenoid valve to control the opening and closing of the pipeline, or it can use a pneumatic butterfly valve, etc.

[0046] The wastewater in the raw slurry tank 210 is monitored by the wastewater monitoring device 100. If the wastewater concentration in the raw slurry tank 210 is low and below the standard concentration, the first water pump 11 can be continuously turned on to transport the wastewater in the raw slurry tank 210 to the mixing tank 230 during the monitoring process.

[0047] In another example, a wastewater monitoring device 100 intermittently measures the wastewater concentration in the raw slurry tank 210. If the wastewater concentration is lower than a first set concentration, the wastewater in the raw slurry tank 210 can be used to flush the tanker truck, thereby increasing the wastewater concentration in the raw slurry tank 210. This reduces the use of clean water when flushing the tanker truck. When the wastewater concentration in the raw slurry tank 210 is equal to or higher than the set value, clean water can be used to wash the tanker truck, thereby reducing the wastewater concentration in the raw slurry tank 210. The wastewater in the raw slurry tank then enters the blending tank for further blending. The wastewater is brought to a concentration close to the set value before entering the blending tank, accelerating the wastewater blending speed.

[0048] In another example, the first water pump 211 is connected to the mixing tank 230 via a second pipeline L2, on which a solenoid valve is installed. The solenoid valve on the first pipeline L1 can be opened first to test the wastewater in the raw slurry tank 210. If it meets the standards, the solenoid valve on the first pipeline L1 is closed. Then, the solenoid valve on the second pipeline L2 is opened, and the wastewater in the raw slurry tank 210 is transported to the mixing tank 230 by the first water pump 11. During this process, the wastewater monitoring device 100 in the mixing tank 230 can be activated to continuously monitor the wastewater in the mixing tank 230 to ensure that the wastewater concentration meets the standards.

[0049] The following describes the specific structure of the wastewater monitoring device 100, as well as the specific principle by which the wastewater monitoring device accurately measures wastewater concentration.

[0050] In one example, such as Figure 4 and Figure 5 In one example, the cross-sectional area of ​​the stabilizing port 12 of the stabilizing container 10 is larger than the cross-sectional area of ​​the outlet 22 of the weighing container 20, so that the sewage flow rate from the stabilizing port 12 is greater than the sewage flow rate from the outlet 22, thereby ensuring that the sewage in the weighing container 20 is always in an overflow state and the sewage level remains stable. In another example, the sewage flow velocity at the stabilizing port 12 of the stabilizing container 10 is greater than the sewage flow velocity at the outlet 22, so that the sewage flow rate from the stabilizing port 12 is greater than the sewage flow rate from the outlet 22, thereby ensuring that the sewage in the weighing container 20 is always in an overflow state and the sewage level remains stable. In another example, the cross-sectional area of ​​the stabilizing port 12 of the stabilizing container 10 is larger than the cross-sectional area of ​​the outlet 22 of the weighing container 20, and the sewage flow velocity at the stabilizing port 12 of the stabilizing container 10 is greater than the sewage flow velocity at the outlet 22. This ensures that the sewage flow rate from the stabilizing port 12 is greater than the sewage flow rate from the outlet 22, thereby keeping the sewage in the weighing container 20 in an overflow state and maintaining a stable sewage level. Regardless of the method used, the sewage flow rate from the stabilizing port 12 is greater than the sewage flow rate from the outlet 22, ensuring that the sewage in the weighing container 20 is always in an overflow state and that the sewage level remains stable. This allows for continuous and accurate measurement of the sewage. For example, the flow rate at the stabilizing port 12 can be roughly calculated based on its cross-section, or a high-flow-rate pump can be used to ensure that the sewage in the stabilizing container is in an overflow state. Alternatively, the cross-sectional size of the outlet 22 can be set according to the cross-sectional size of the stabilizing port 12, making the cross-sectional size of the outlet 22 slightly smaller than that of the stabilizing port 12. Using these methods ensures a large inflow rate and a small outflow rate. Alternatively, valves can be installed at each water outlet to control the water flow by adjusting the valve size.

[0051] In some embodiments, the second inlet 21 of the weighing container 20 may be located at the top of the weighing container 20, the outlet 22 may be located at the bottom of the weighing container 20, and the second overflow port 23 may be located on the side wall of the weighing container 20. The second overflow port 23 is connected to a second overflow pipe 24, and the sewage overflowing from the second overflow port 23 flows out through the second overflow pipe 24. For example, the weighing container 20 may be generally cylindrical, with an opening forming the second inlet 21 for receiving sewage flowing out from the flow stabilizing port 12 of the flow stabilizer 10. The bottom of the cylindrical weighing container 20 forms a conical structure, with an outlet 22 at the bottom of the conical structure. The outlet 22 may be open, and the conical structure facilitates the smooth guidance of solid matter (adhesives) in the sewage to the outlet 22, preventing sedimentation and improving the accuracy of sewage measurement. The cylindrical weighing container 20 may have two oppositely arranged second overflow ports 23 on its side wall, and a second overflow pipe 24 is connected to each second overflow port 23. The shape of the second overflow port 23 can be rectangular, circular, or other shapes. Compared with the circular overflow port, the rectangular second overflow port 23 is easier to clean, and the lower edge of the rectangular overflow port has a larger contact area with the liquid surface than the lower edge of the circular overflow port, resulting in a more obvious overflow effect.

[0052] The inventors discovered that wastewater sedimentation within the weighing container 20 can affect wastewater concentration monitoring, leading to inaccurate measurements. In this embodiment of the wastewater monitoring device, the second inlet 21 and outlet 22 are located at the top and bottom of the weighing container 20, respectively, i.e., the second inlet 21 and outlet 22 are vertically distributed. By adjusting the size of the outlet 22, most of the wastewater in the weighing container 20 flows out through the outlet 22, while a small portion flows out through the second overflow outlet 23. This minimizes or avoids the sedimentation of fixed substances in the wastewater, ensuring that the wastewater in the weighing container 20 maintains a uniform concentration (density). This results in a more accurate calculated wastewater concentration. Simultaneously, the flowing wastewater in the weighing container 20 also reduces sedimentation, leading to a more uniform wastewater concentration.

[0053] The inventors also discovered that solid substances adhering to the inner and outer walls of the weighing container 20 can also affect wastewater concentration monitoring, leading to inaccurate measurements. In this embodiment of the wastewater monitoring device, a second overflow pipe 24 is connected at the second overflow port 23, allowing the wastewater overflowing from the second overflow port 23 to flow out through the second overflow pipe 24. This prevents wastewater from overflowing onto the outer wall of the weighing container 20 and adhering to it, thus affecting measurement accuracy.

[0054] In one example, the inner wall of the weighing container 20 is smooth, for example, made of stainless steel, to minimize or prevent solid matter in the wastewater from adhering to the inner wall. In another example, the inner wall of the weighing container 20 may be provided with a smooth plastic plate, which similarly minimizes or prevents solid matter in the wastewater from adhering to the inner wall. In yet another example, an anti-stick coating may also be applied to the inner wall of the weighing container 20.

[0055] To reduce the influence of fixed substances adhering to or depositing on the weighing container 20 on the measurement, in addition to the various methods mentioned above, the present invention can also provide a vibration device on the weighing container 20. The vibration device is used to detach the solid substances adhering to the surface of the weighing container 20. In a cylindrical weighing container 20, the effect of detaching the solid substances from the surface of the weighing container 20 by vibration is even more obvious.

[0056] In another example, a cleaning device, such as a spray device 52, can be added to the inlet 21 of the weighing container 20 to rinse the inner wall of the weighing container 20. For example, an annular cleaning pipe 52 can be fixedly installed on the bottom outer peripheral wall of the flow stabilizing container 10, and the water nozzles on the annular cleaning pipe 52 can be used to rinse the inner peripheral wall of the weighing container 20 to prevent solid substances from adhering and affecting the weighing accuracy of the weighing container 20. A spray nozzle 50 can also be installed at the inlet of the flow stabilizing container 10 to rinse the flow stabilizing container 10. Furthermore, the spray device 50 and the annular cleaning pipe 52 are connected through the same clean water pipe 51, which can rinse the weighing container 20 and the flow stabilizing container 10 simultaneously, improving the rinsing efficiency.

[0057] In some embodiments, the flow stabilizing port 12 of the flow stabilizing container 10 is located at the bottom of the flow stabilizing container 10, and the first inlet 11 and the first overflow port 13 are located on the side wall of the flow stabilizing container 10. The first overflow port 13 is connected to the first overflow pipe 14, and the sewage flowing out from the first overflow port 13 flows out through the first overflow pipe 14. Specifically, the flow stabilizing container 10 can be located above the weighing container 20, for example, both the flow stabilizing container 10 and the weighing container 20 are supported by a bracket. The flow stabilizing container 10 can also be cylindrical, and the bottom can also be a conical structure to avoid the deposition of fixed substances in the sewage. The top of the cylindrical flow stabilizing container 10 can be an open structure, and the first inlet 11 is located on the side wall of the flow stabilizing container 10 to avoid the open top of the flow stabilizing container 10, so as to facilitate the installation of a cleaning device, such as a spray device.

[0058] The flow stabilizing port 12 of the flow stabilizing container 10 can be located above the middle of the top opening (second inlet 21) of the weighing container 20, corresponding to the outlet 22 of the weighing container 20. During the cleaning process of the flow stabilizing container 10 by the cleaning device at the top of the flow stabilizing container 10, the cleaning water discharged from the flow stabilizing port 12 of the flow stabilizing container 10 is used to clean the weighing container 20.

[0059] In some embodiments, the weighing scale can weigh the weighing container 20 and the wastewater inside it via a weight monitor 25. In one example, the weighing container 20 is suspended and supported on a bracket 30 by the weight monitor 25, and the weighing measurement is achieved by suspending the weighing container 20.

[0060] In another example, a weight monitor 25 is positioned between the support and the weighing container 20, and the weighing measurement is achieved by supporting the weighing container 20 with the weight monitor 25. Specifically, three evenly distributed support blocks can be provided on the outer peripheral wall of the weighing container 20, and a weight monitor 25 can be placed between the support and each support block. Compared with the suspension method, the support of the weighing container 20 by the three evenly distributed weight monitors 25 is more stable and the weighing measurement is more accurate.

[0061] The weighing method of the weighing container 20 and the sewage inside is not limited to the above-mentioned method. It can also be measured by supporting the bottom of the weighing container 20, or other possible methods.

[0062] In some embodiments, the first overflow pipe 14, which is connected to the first overflow port 13 of the flow stabilizing container 10, and the second overflow pipe 24, which is connected to the second overflow port 23 of the weighing container 20, are both connected to the mixing tank 230. The first water inlet 22 of the flow stabilizing container 10 is connected to the mixing tank 230 through the water inlet pipe 15. A third water pump 232 connected to the water inlet pipe 15 is provided in the mixing tank 230 for pumping the sewage in the mixing tank 230 to the flow stabilizing container 10.

[0063] Specifically, the third water pump 232 continuously pumps the sewage in the mixing tank 230 to the flow stabilizing container 10 through the inlet pipe 15. The sewage flows in from the first inlet 22 and flows out through the flow stabilizing port 12. Since the sewage flow rate into the flow stabilizing container 10 through the first inlet 22 is greater than the sewage flow rate out of the flow stabilizing port 12, the sewage level in the flow stabilizing container 10 can reach the first overflow port 13 and overflow. The overflowed sewage flows back to the mixing tank 230 through the first overflow pipe 14. At this time, the sewage in the flow stabilizing container 10 can be in an overflow state, so that the sewage flowing out of the flow stabilizing port 12 can be kept at a constant flow rate in real time. Next, the sewage flowing out of the constant flow port 12 at a constant flow rate enters the weighing container 20 through the second inlet 21 and flows out of the outlet 22 of the weighing container 20. Since the sewage flow rate from the constant flow port 12 is greater than the sewage flow rate from the outlet 22 of the weighing container 20, the sewage level in the weighing container 20 can reach the second overflow port 23 and overflow. The overflowed sewage flows back to the mixing tank 230 through the second overflow pipe 24. At this time, the sewage in the weighing container 20 can continue to be in an overflow state. Since the sewage flowing out of the constant flow port 12 flows into the weighing container 20 at a constant flow rate, the sewage level in the weighing container 20 is almost stable and does not fluctuate. Therefore, the sewage volume in the weighing container 20 can continue to maintain a constant value. The measured weight of the weighing container 20 and the sewage in it under the overflow state is more accurate, and the calculated sewage concentration is more precise. Therefore, through the above-described scheme, the wastewater monitoring device of the present invention can accurately measure the wastewater in the mixing tank 230 continuously and without interruption. Furthermore, most of the wastewater flowing into the weighing container 20 from the top second inlet flows out from the bottom outlet 22, with a small amount overflowing from the second overflow outlet 23. The flowing wastewater hardly settles in the weighing container 20, resulting in a more uniform wastewater concentration (density) and further improving measurement accuracy. In addition, to further avoid the influence of solid substances adhering to the inner and outer walls of the weighing container 20 on the accuracy of wastewater concentration measurement, the weighing container 20 employs various methods such as using stainless steel plates, adding smooth plastic plates, or coating the inner wall with an anti-stick layer to minimize the impact of adhering substances on the inner wall of the weighing container 20 on measurement accuracy. Furthermore, by connecting the second overflow outlet 23 to the second overflow pipe 24, the overflowing wastewater is guided to the mixing tank 230 to eliminate the influence of adhering substances on the outer wall of the weighing container 20 on measurement accuracy.

[0064] Furthermore, the flow stabilizing port 12 at the bottom of the flow stabilizing container 10 can extend into the weighing container 20 and is located below the second overflow port 23. In this way, when the weighing container 20 is in an overflow state, the flow stabilizing port 12 is located below the sewage surface, thereby reducing the impact of the sewage flowing out of the flow stabilizing port 12 on the sewage surface in the weighing container 20, ensuring a constant sewage surface, and improving the accuracy of sewage concentration measurement.

[0065] The mixing tank 230 is connected to the clean water supply pipe 41, which is used to replenish clean water into the mixing tank 230 when the water volume in the mixing tank 230 is insufficient.

[0066] The following section introduces how wastewater mixing devices work in conjunction with wastewater monitoring devices in wastewater treatment systems to achieve rapid mixing.

[0067] In some embodiments, combined with Figure 1 , Figure 2 and Figure 3 The wastewater mixing device also includes a thickening tank 220 and a separation device. The separation device is used to separate wastewater into low-concentration wastewater and high-concentration wastewater. The separation device includes an inlet, a first outlet, and a second outlet. Wastewater enters through the inlet and is separated by the separation device. The low-concentration wastewater is discharged from the first outlet and flows into the desired wastewater tank, while the high-concentration wastewater is discharged from the second outlet and flows into the thickening tank 20. The separation device can be located above the thickening tank 220. The separation device can be a centrifuge, hydrocyclone, or other system with swirling sedimentation function to separate wastewater into low-concentration wastewater and high-concentration wastewater. In various embodiments of the present invention, although hydrocyclone 221 is used as an example of the separation device, it is not limited thereto. For example, the inlet of hydrocyclone 221 can be selectively connected to the first water pump 211 in the original slurry tank 210, and the overflow port of hydrocyclone 221 can be selectively connected to the original slurry tank 210; and / or, the overflow port of the hydrocyclone can be selectively connected to the mixing tank 230. When the wastewater concentration in the raw slurry tank 210 is higher than the first set concentration, the inlet of the hydrocyclone 221 is connected to the first water pump 211, and the overflow port of the hydrocyclone is connected to the raw slurry tank 210 and / or the mixing tank 230. The wastewater in the raw slurry tank 210 is transported to the hydrocyclone 221 by the first water pump 211, so that the low-concentration wastewater discharged from the overflow port of the hydrocyclone 221 from the wastewater in the raw slurry tank 210 is transported to the raw slurry tank 210 and / or the mixing tank 230, and the high-concentration wastewater settled by the hydrocyclone 221 from the wastewater in the raw slurry tank 210 remains in the thick slurry tank 220.

[0068] In one example, hydrocyclone 221 is connected to first water pump 211 via third pipe L3. A solenoid valve is installed on third pipe L3. The overflow port of hydrocyclone 221 is connected to raw slurry tank 210 via fourth pipe L4. A solenoid valve is installed on fourth pipe L4. When the wastewater concentration in raw slurry tank 210 is higher than a first set concentration, the solenoid valve on third pipe L3 opens, connecting the inlet of hydrocyclone 221 to first water pump 11; the solenoid valve on fourth pipe L4 opens, connecting the overflow port of hydrocyclone 221 to raw slurry tank 210. Wastewater in raw slurry tank 210 is then transported to hydrocyclone 221 by first water pump 211, so that the low-concentration wastewater discharged from the overflow port of hydrocyclone 221 from raw slurry tank 210 returns to raw slurry tank 210, thereby adjusting the concentration of wastewater in raw slurry tank 210. At the same time, the solenoid valve on the first pipeline L1 can be opened to detect the wastewater being mixed in the raw slurry tank 210 until the wastewater in the raw slurry tank 210 is lower than the first set concentration value.

[0069] In another example, the overflow port of hydrocyclone 221 is also connected to the mixing tank 230 via a fifth pipeline L5, on which a solenoid valve is installed. Similarly, when the wastewater concentration in the raw slurry tank 210 is higher than a first set concentration, the solenoid valve on the third pipeline L3 opens, connecting the inlet of hydrocyclone 221 to the first water pump 11; the solenoid valve on the fifth pipeline L5 opens, connecting the overflow port of hydrocyclone 221 to the mixing tank 230. The first water pump 211 then pumps wastewater from the raw slurry tank 210 to the hydrocyclone 221, allowing the low-concentration wastewater discharged from the overflow port of the hydrocyclone 221 to be transported to the mixing tank 230, thereby adjusting the concentration of the wastewater in the mixing tank 230. Simultaneously, a wastewater monitoring device 100 connected to the mixing tank 230 can be activated to continuously monitor the wastewater in the mixing tank 230.

[0070] Understandably, opening the solenoid valve on the fifth pipeline L5 connects the overflow port of hydrocyclone 221 to the mixing tank 230. At the same time, opening the solenoid valve on the fourth pipeline L4 connects the overflow port of hydrocyclone 221 to the raw slurry tank 210. That is, the wastewater in the raw slurry tank 210 is transported to the hydrocyclone 221 by the first water pump 211. This allows the low-concentration wastewater discharged from the overflow port of the hydrocyclone 221 from the wastewater in the raw slurry tank 210 to be transported to the mixing tank 230 and the raw slurry tank 210. This allows for the concentration adjustment of the wastewater in the mixing tank 230 and the wastewater in the raw slurry tank 210.

[0071] Furthermore, in combination Figure 2 and Figure 3As shown, the wastewater mixing device also includes a settling container 222 (concentration settling tank), which has a top inlet 2221, a bottom outlet 2222, and a discharge port 2223 located between the top inlet and the bottom outlet. The overflow port of the hydrocyclone 221 is connected to the top inlet 2211, the bottom outlet 2222 is connected to the thickening tank 220, and the discharge port 2223 is connected to the raw slurry tank 210 and / or the mixing tank 230. The settling container 222 is used to further settle and separate the wastewater discharged from the overflow port of the hydrocyclone 221, so that larger particles of wastewater (higher concentration wastewater) are located at the bottom of the settling container 222 and discharged from the bottom outlet 2222 into the thickening tank 220, while cleaner wastewater (lower concentration wastewater) is transported from the discharge port 2223 to the raw slurry tank 210 and / or the mixing tank 230, thereby mixing the wastewater in the raw slurry tank 210 and / or the mixing tank 230.

[0072] Understandably, in some of the examples described above and below, the wastewater separated by the overflow port of hydrocyclone 221 can be directly transported to the raw slurry tank 210 and / or the blending tank 230, or it can be transported to the raw slurry tank 210 and / or the blending tank 230 after being settled again by the settling container 222.

[0073] In some embodiments, a third liquid level detection device is provided in the mixing tank 230 to detect the sewage level in the mixing tank 230. The third liquid level detection device may be, for example, a liquid level sensor. When the sewage concentration in the raw slurry tank 210 is higher than a first set concentration, and the sewage level in the mixing tank 230 is higher than a third set liquid level, it indicates that the liquid level in the mixing tank 230 is high. At this time, the inlet of the hydrocyclone 221 is connected to the first water pump 211, and the overflow port of the hydrocyclone 221 is connected to the raw slurry tank 210. The sewage in the raw slurry tank 210 is transported to the hydrocyclone 221 by the first water pump 211, so that the low-concentration sewage discharged from the overflow port of the hydrocyclone 21 from the raw slurry tank 10 is transported to the raw slurry tank 210. In other words, the wastewater concentration in the raw slurry tank 210 is high, and the liquid level in the mixing tank 230 is high. The mixing tank 230 does not need to receive wastewater. Instead, the wastewater is settled by the hydrocyclone 221, and the low-concentration wastewater separated from the high-concentration wastewater in the raw slurry tank is returned to the raw slurry tank 210, thereby adjusting the wastewater in the raw slurry tank 210.

[0074] When the wastewater concentration in the raw slurry tank 210 is higher than the first set concentration, and the wastewater level in the mixing tank 230 is lower than the third set level, it indicates that the level in the mixing tank 230 is low. At this time, the inlet of the hydrocyclone 221 is connected to the first water pump 211, and the overflow port of the hydrocyclone 221 is connected to the mixing tank 230. The first water pump 211 transports the wastewater in the raw slurry tank 210 to the hydrocyclone 221, so that the low-concentration wastewater discharged from the overflow port of the hydrocyclone 221 from the wastewater in the raw slurry tank 210 is transported to the mixing tank 230. In other words, the wastewater concentration in the raw slurry tank 210 is high, and the level in the mixing tank 230 is high. The mixing tank 230 does not need to receive wastewater. The high-concentration wastewater from the raw slurry tank is settled by the hydrocyclone 221, and the low-concentration wastewater separated from the high-concentration wastewater in the raw slurry tank is returned to the raw slurry tank 210, thereby adjusting the wastewater in the raw slurry tank 210.

[0075] In some embodiments, a first liquid level detection device is further provided in the raw slurry tank 210 for detecting the sewage level in the raw slurry tank 210. The first liquid level detection device may be, for example, a liquid level sensor. When the sewage concentration in the raw slurry tank 210 is higher than a first set concentration, and the sewage level in the raw slurry tank 210 is higher than the first set level, the inlet of the hydrocyclone 221 is connected to the first water pump, the overflow port of the hydrocyclone 21 is connected to the mixing tank 230, and the overflow port of the hydrocyclone 221 is not connected to the raw slurry tank 210, so that the low-concentration sewage discharged from the overflow port of the hydrocyclone from the raw slurry tank 210 is transported to the mixing tank 230.

[0076] When the wastewater concentration in the raw slurry tank 210 is high and the wastewater level is also high, the wastewater with a higher concentration in the raw slurry tank 210 is first settled by hydrocyclone 221 to obtain wastewater with a lower concentration, and then transported to the mixing tank 230 to mix the wastewater in the mixing tank 230.

[0077] In some embodiments, the thickening tank 220 is equipped with a second water pump 223, which selectively connects the thickening tank 220 to the mixing tank 230. When the wastewater monitoring device 100 detects that the wastewater concentration in the mixing tank 230 is lower than a set standard concentration, the second water pump 223 transports the wastewater from the thickening tank 220 to the mixing tank 230. For example, the second water pump 223 is connected to the mixing tank 230 via a sixth pipeline L6, on which a solenoid valve is installed. When the wastewater monitoring device 100 detects that the wastewater concentration in the mixing tank 230 is lower than the set standard concentration, the solenoid valve on the sixth pipeline L6 is opened, and the wastewater from the thickening tank 220 is transported to the mixing tank 230 via the second water pump 223, thereby utilizing the high-concentration wastewater in the thickening tank 20 and achieving zero wastewater discharge.

[0078] In some embodiments, the slurry tank 220 is equipped with a second water pump 223, and the slurry tank is also selectively connected to the wastewater monitoring device 100 via the second water pump 223. Specifically, the slurry tank is also selectively connected to the flow stabilizing container 10 via the second water pump 223. The wastewater monitoring device is also used to detect the wastewater concentration in the slurry tank 220. For example, the second water pump 223 is connected to the wastewater monitoring device 100 via a seventh pipe L7, and a solenoid valve is installed on the seventh pipe L7. The second water pump 223 is selectively connected to the inlet of the hydrocyclone 221. For example, the second water pump 223 is connected to the inlet of the hydrocyclone 221 via an eighth pipe L8, and a solenoid valve is installed on the eighth pipe. When the wastewater concentration in the thickening tank 220 is lower than the second set concentration, the second water pump 223 is connected to the inlet of the hydrocyclone 221 (e.g., by opening the solenoid valve on the eighth pipeline L8). The overflow port of the hydrocyclone 221 is connected to the mixing tank 230 and / or the raw slurry tank 210. The wastewater in the thickening tank 220 is transported to the hydrocyclone 221 by the second water pump 223, so that the low-concentration wastewater discharged from the overflow port of the hydrocyclone 221 from the thickening tank 220 is transported to the mixing tank 230 and / or the raw slurry tank 210, while the high-concentration wastewater from the thickening tank 220 remains in the thickening tank 220 after settling in the hydrocyclone 221. When the wastewater concentration in the thickening tank 220 is high, it is reduced by the hydrocyclone 221 and then enters the mixing tank 230 and / or the raw slurry tank 210 to adjust the wastewater concentration in the mixing tank 230 and / or the raw slurry tank 210.

[0079] In some embodiments, the thickening tank 220 is equipped with a second water pump 223, which is selectively connected to the inlet of the hydrocyclone 221. A second liquid level detection device is installed in the thickening tank 220 to detect the wastewater level within the tank. This second liquid level detection device can be, for example, a liquid level sensor. When the wastewater level in the thickening tank 220 is higher than a second set liquid level, the inlet of the hydrocyclone 221 is connected to the second water pump 223, and the overflow port of the hydrocyclone 221 is connected to the mixing tank 230, so that the low-concentration wastewater discharged from the overflow port of the hydrocyclone 221 from the thickening tank 220 is transported to the mixing tank 230. And / or, when the sewage level in the thickening tank 220 is higher than the second set level and the sewage level in the raw slurry tank 210 is lower than the first set level, the inlet of the hydrocyclone 221 is connected to the second water pump 223 and the overflow port of the hydrocyclone 221 is connected to the raw slurry tank 210, so that the low-concentration sewage discharged from the overflow port of the hydrocyclone 221 from the thickening tank 220 is transported to the raw slurry tank 210.

[0080] In some embodiments, the mixing tank 230 is equipped with a fourth water pump 233, which is selectively connected to the inlet of the hydrocyclone 221. For example, the fourth water pump 233 is connected to the inlet of the hydrocyclone 221 via a ninth pipeline L9, on which a solenoid valve is installed. When the concentration in the mixing tank 230 is higher than a preset standard concentration, a third water pump 232 is connected to the inlet of the hydrocyclone 221 (e.g., the solenoid valve on the ninth pipeline L9 is opened), and the overflow port of the hydrocyclone 221 is connected to the raw slurry tank 210 and / or the mixing tank 230, so that low-concentration wastewater discharged from the overflow port of the hydrocyclone 21 from the mixing tank 230 is transported to the raw slurry tank 210 and / or the mixing tank 230.

[0081] In some embodiments, a cleaning pipeline can be introduced into the mixing tank 230 and / or the wastewater monitoring device 100 to clean the mixing tank 230 and / or the wastewater monitoring device 100 with clean water.

[0082] In summary, the wastewater treatment system of the present invention can accurately monitor the wastewater concentration in the mixing tank 230 in real time through the wastewater monitoring device 100. It can also use the wastewater monitoring device 100 to monitor the wastewater concentration in the raw slurry tank 210 and the thickened slurry tank 220, and perform rapid mixing based on the wastewater concentration values ​​in each tank. Furthermore, through a separation device (such as a hydrocyclone 221), the wastewater in the raw slurry tank 210, the thickened slurry tank 220, and the mixing tank 230 can be separated into low-concentration wastewater and high-concentration wastewater. The high-concentration wastewater remains in the thickened slurry tank 220, while the low-concentration wastewater is transported as needed, for example, to the raw slurry tank 210 and the mixing tank 220. That is, the hydrocyclone 221 can be used to mix and dilute the wastewater within the raw slurry tank 210 and the wastewater within the mixing tank 220. Combined with the accurate measurement by the wastewater monitoring device 100, the desired wastewater concentration can be achieved.

[0083] A stirring device 250 can be installed in the above-mentioned raw slurry tank 210, thick slurry tank 220, mixing tank 230 and finished product tank 240 to mix and stir at the same time, so that the measured wastewater concentration is more accurate.

[0084] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0085] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0086] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0087] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0088] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A wastewater treatment system, characterized in that, include: puree pool; Mixing tank; A wastewater monitoring device, connected to the mixing tank, is used to monitor the wastewater concentration in the mixing tank in real time; The wastewater monitoring device includes: A flow stabilizing container is provided with a first inlet, a flow stabilizing outlet, and a first overflow outlet. The flow stabilizing outlet is located below the first overflow outlet. The first inlet is connected to the mixing tank. The flow rate of sewage from the mixing tank entering the flow stabilizing container from the first inlet is greater than the flow rate of sewage flowing out from the flow stabilizing outlet, so that the sewage level in the flow stabilizing container can exceed the first overflow outlet and overflow from the first overflow outlet. When the sewage in the flow stabilizing container is in an overflow state, the sewage flows out from the flow stabilizing outlet at a constant flow rate. A weighing scale includes a weighing container, which is provided with a second inlet, an outlet, and a second overflow outlet. The outlet is located below the second inlet and the second overflow outlet. Wastewater flowing out of the outlet flows into a mixing tank. The second inlet is located below a flow stabilizing outlet and is used to receive wastewater flowing out of the flow stabilizing outlet at a constant flow rate. The flow rate of wastewater flowing out of the flow stabilizing outlet is greater than the flow rate of wastewater flowing out of the outlet, so that the wastewater in the weighing container is in an overflow state. The flow stabilizing port at the bottom of the flow stabilizing container extends into the weighing container and is located below the second overflow port; Thick slurry tank; A separation device, wherein the inlet of the separation device is selectively connected to the raw slurry tank, the first outlet of the separation device is selectively connected to the raw slurry tank, the first outlet of the separation device is selectively connected to the blending tank, and the second outlet of the separation device is connected to the concentrate tank; When the wastewater concentration in the raw slurry tank is higher than or equal to a first set concentration, the inlet of the separation device is connected to the raw slurry tank, and the first outlet of the separation device is connected to the raw slurry tank and the blending tank. The wastewater in the raw slurry tank is transported to the separation device so that the low-concentration wastewater discharged from the raw slurry tank through the first outlet of the separation device is transported to the raw slurry tank and the blending tank. The high-concentration wastewater separated by the separation device from the wastewater in the raw slurry tank flows from the second outlet of the separation device to the thick slurry tank. When the concentration of wastewater in the raw slurry tank is lower than the first set concentration, the wastewater in the raw slurry tank is transported to the blending tank; The raw slurry tank and the flow stabilizing container can be selectively connected, and the wastewater monitoring device is also used to detect the wastewater concentration in the raw slurry tank; The thickening tank is also selectively connected to the flow stabilizing container, and the wastewater monitoring device is also used to detect the wastewater concentration in the thickening tank. The slurry tank and the inlet of the separation device can be selectively connected; Wherein, when the wastewater concentration in the thickening tank is lower than the second set concentration, the thickening tank is connected to the inlet of the separation device, the first outlet of the separation device is connected to the mixing tank and the raw slurry tank, the wastewater in the thickening tank is transported to the separation device, so that the low-concentration wastewater discharged from the wastewater in the thickening tank through the first outlet of the separation device is transported to the mixing tank and the raw slurry tank, and the high-concentration wastewater separated from the wastewater in the thickening tank by the separation device flows from the second outlet of the separation device to the thickening tank; The thickening tank and the blending tank can be selectively connected; When the wastewater monitoring device detects that the wastewater concentration in the mixing tank is lower than the set standard concentration, the wastewater in the thickening tank is transported to the mixing tank. The mixing tank and the inlet of the separation device can be selectively connected; When the concentration of wastewater in the mixing tank is higher than the preset standard concentration, the mixing tank is connected to the inlet of the separation device, and the first outlet of the separation device is connected to the raw slurry tank and the mixing tank, so that the low-concentration wastewater discharged from the mixing tank through the first outlet of the separation device is transported to the raw slurry tank and the mixing tank.

2. The wastewater treatment system according to claim 1, characterized in that, Also includes: A settling container, the settling container being provided with a top inlet, a bottom outlet, and a discharge port located between the top inlet and the bottom outlet; The first outlet of the separation device is connected to the top inlet, the bottom outlet is connected to the thickening tank, and the discharge outlet is connected to the raw slurry tank and / or the blending tank.

3. The wastewater treatment system according to claim 1, characterized in that, The first overflow port is connected to a first overflow pipe, and the second overflow port is connected to a second overflow pipe. Both the first overflow pipe and the second overflow pipe are connected to the mixing tank.

4. The wastewater treatment system according to claim 1, characterized in that, Also includes: A support frame is located above the mixing tank, and the flow stabilizing container and the weighing container are supported on the support frame, with the weighing container located below the flow stabilizing container; The weighing scale also includes a weight monitor, and the weighing container is suspended from the support by the weight monitor; or, the weight monitor is disposed between the support and the weighing container, and the weighing container is supported by the support by the weight monitor.

5. The wastewater treatment system according to claim 1, characterized in that, Also includes: A sand and gravel separator, connected to the raw slurry tank, is used to separate sand and gravel from wastewater and transport the separated wastewater to the raw slurry tank. The finished product tank is connected to the mixing tank and is used to receive the mixed wastewater from the mixing tank.

Images