Wastewater treatment device

Abstract

The utility model relates to a wastewater treatment device. The wastewater treatment device comprises a first reactor, a second reactor, a circulation assembly, an input assembly and an output assembly, the first reactor is provided with a first chamber, and the first chamber is provided with a first catalyst. The second reactor is provided with a second chamber, and the second chamber is provided with a second catalyst. The circulating assembly comprises a connecting pipeline and a return pipeline, two ends of the connecting pipeline are connected with the first reactor and the second reactor, and two ends of the return pipeline are connected with the first reactor and the second reactor. The input assembly comprises an ozone input pipeline and a wastewater input pipeline, the ozone input pipeline is connected with the return pipeline, and the wastewater input pipeline is connected with the first reactor. The output assembly comprises a first output pipeline; the first output pipeline is connected with the second reactor. The wastewater treatment device has the advantages of being convenient to produce and transport and high in energy consumption utilization rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment equipment, in particular to a wastewater treatment device. BACKGROUND

[0002] In recent years, in the process of industrial wastewater treatment, the organic wastewater with high salt content and high biological toxicity is increasing, and the ozone catalytic oxidation technology can treat various organic pollutants through the synergistic effect of ozone oxidation and catalyst, so it is widely used.

[0003] At present, the wastewater treatment device using ozone catalytic oxidation technology has the problems of complex device structure, great processing difficulty of the wastewater treatment device, and inconvenient production and transportation due to the too high height of the reactor, and has the problems of great production difficulty and inconvenient transportation. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a wastewater treatment device aiming at the problems of great production difficulty and inconvenient transportation of the wastewater treatment device.

[0005] A wastewater treatment device comprises:

[0006] A first reactor is provided with a first cavity, the first reactor comprises a first catalyst, the first catalyst is arranged in the first cavity, and the first reactor is further provided with a first input port and a first output port, and the first input port and the first output port are both in communication with the first cavity;

[0007] A second reactor is provided with a second cavity, the second reactor comprises a second catalyst, the second catalyst is arranged in the second cavity, and the second reactor is further provided with a second input port, a second output port and a reflux port, and the second input port, the second output port and the reflux port are all in communication with the second cavity;

[0008] A circulating assembly comprises a connecting pipeline and a reflux pipeline, one end of the connecting pipeline is connected with the first output port, the other end of the connecting pipeline is connected with the second input port, one end of the reflux pipeline is connected with the reflux port, and the other end of the reflux pipeline is connected with the first input port;

[0009] An input assembly comprises an ozone input pipeline and a wastewater input pipeline, the ozone input pipeline is connected with the reflux pipeline, and the wastewater input pipeline is connected with the first input port; and

[0010] An output assembly comprises a first output pipeline, and the first output pipeline is connected with the second output port.

[0011] In one of the embodiments, the first reactor comprises a micro-bubble diffuser, the micro-bubble diffuser is installed in the first chamber, and the backflow pipeline is connected to the micro-bubble diffuser through the first input port.

[0012] In one of the embodiments, the first reactor further comprises a first screen pipe, the first screen pipe is installed in the first chamber, and an output end of the first screen pipe is connected to the first output port.

[0013] The second reactor further comprises a second screen pipe, the second screen pipe is installed in the second chamber, and an output end of the second screen pipe is connected to the second output port.

[0014] In one of the embodiments, the circulating assembly further comprises a backflow valve, a circulating pump, a circulating water flow meter, and a steam-water mixer, the backflow valve, the circulating pump, and the circulating water flow meter are all installed in the backflow pipeline, the steam-water mixer comprises a liquid input interface, a gas input interface, and a steam-water output interface, the liquid input interface and the steam-water output interface are connected to the backflow pipeline, and the ozone input pipeline is connected to the gas input interface.

[0015] In one of the embodiments, the wastewater input pipeline is connected to the backflow pipeline, and the wastewater input pipeline is connected to the backflow pipeline between the steam-water mixer and the first input port, the input assembly further comprises a water inlet pump, a water inlet flow meter, and a water inlet valve, the water inlet pump, the water inlet flow meter, and the water inlet valve are all installed in the wastewater input pipeline.

[0016] In one of the embodiments, the input assembly further comprises an ozone inlet valve and a check valve, the ozone inlet valve and the check valve are installed in the ozone input pipeline.

[0017] In one of the embodiments, the output assembly further comprises a water production tank, the water production tank is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected to the first output pipeline.

[0018] In one of the embodiments, the output assembly further comprises an exhaust gas destroyer and a second output pipeline, a top end of the second reactor is provided with an exhaust gas output port, one end of the second output pipeline is connected to the exhaust gas output port, and the other end of the second output pipeline is connected to the exhaust gas destroyer.

[0019] In one of the embodiments, the output assembly further comprises a third output pipeline, a top end of the water production tank is provided with a gas outlet, one end of the third output pipeline is connected to the gas outlet, and the other end of the third output pipeline is connected to the exhaust gas destroyer.

[0020] In one of the embodiments, the first chamber comprises a first sub-chamber, a second sub-chamber and a third sub-chamber, the first sub-chamber communicates with the third sub-chamber through the second sub-chamber, the first catalyst fills the second sub-chamber, the first input port communicates with the first sub-chamber, and the first output port communicates with the third sub-chamber.

[0021] The second chamber comprises a fourth sub-chamber, a fifth sub-chamber and a sixth sub-chamber, the fourth sub-chamber communicates with the sixth sub-chamber through the fifth sub-chamber, the second catalyst fills the fifth sub-chamber, the second input port communicates with the fourth sub-chamber, and the second output port communicates with the sixth sub-chamber.

[0022] The wastewater treatment device described above, by setting the first reactor and the second reactor, setting the first catalyst in the first chamber of the first reactor and setting the second catalyst in the second chamber of the second reactor, connecting the two ends of the connecting pipeline to the first reactor and the second reactor respectively, connecting the two ends of the reflux pipeline to the first reactor and the second reactor respectively, forming a circulation loop among the first reactor, the connecting pipeline, the second reactor and the reflux pipeline, and connecting the ozone input pipeline to the reflux pipeline, circulating the water that does not need to be treated in the circulation loop first, then inputting ozone into the circulation loop through the ozone input pipeline, then inputting the wastewater to be treated into the first input port through the wastewater input pipeline, mixing ozone and wastewater in the first reactor, so that the wastewater to be treated, the first catalyst and ozone are degraded in the first reactor, then the wastewater and ozone are further transported into the second reactor through the connecting pipeline and the organic pollutants in the wastewater are fully degraded by the second catalyst, and the treated wastewater is output through the first output pipeline. The wastewater treatment device of the present application solves the problem of high production and transportation difficulty caused by the high height of a single reactor by connecting the first reactor and the second reactor in series, and the first reactor and the second reactor are both provided with the first catalyst and the second catalyst, which increases the three-phase contact time of the catalyst, the wastewater to be treated and ozone, thereby improving the ozone utilization rate, and has the advantages of convenient production and transportation and high energy utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure diagram of the wastewater treatment device described in the embodiments of the present application.

[0024] Figure 2 The structure diagram of the circulation loop of the wastewater treatment device described in the embodiments of the present application.

[0025] REFERENCE NUMERALS

[0026] 100, first reactor; 110, first chamber; 111, first sub-chamber; 112, second sub-chamber; 113, third sub-chamber; 120, first catalyst; 130, first input port; 140, first output port; 150, micro-bubble diffuser; 160, first screen pipe;

[0027] 200, second reactor; 210, second chamber; 211, fourth sub-chamber; 212, fifth sub-chamber; 213, sixth sub-chamber; 220, second catalyst; 230, second input port; 240, second output port; 250, backflow port; 260, second screen pipe; 270, tail gas output port;

[0028] 300, circulation assembly; 310, connection pipeline; 320, backflow pipeline; 321, backflow valve; 322, circulation pump; 323, circulation water flow meter; 330, steam-water mixer; 331, liquid input interface; 332, gas input interface; 333, steam-water output interface;

[0029] 400, input assembly; 410, ozone input pipeline; 411, ozone inlet valve; 412, check valve; 420, wastewater input pipeline; 421, water inlet pump; 422, water inlet flow meter; 423, water inlet valve;

[0030] 500, output assembly; 510, first output pipeline; 520, second output pipeline; 530, third output pipeline; 540, water production tank; 541, water inlet; 542, water outlet; 543, gas outlet; 550, tail gas destroyer. DETAILED DESCRIPTION

[0031] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated to cover all such modifications as fall within the scope of the application. It is to be understood that other embodiments can be employed and structural or procedural changes can be made without departing from the scope of the present application.

[0032] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0033] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise explicitly specified and limited, if there are terms "installation", "connection", "connection", "fixation" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0035] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under the second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] It is to be noted that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. It will be understood that, when an element or layer is referred to as being "connected" to or "coupled" to another element or layer, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0037] Referring to Figure 1 , a structure schematic diagram of a wastewater treatment device in an embodiment of the present application is shown, the wastewater treatment device comprising a first reactor 100, a second reactor 200, a circulation assembly 300, an input assembly 400 and an output assembly 500, the first reactor 100 being provided with a first chamber 110, the first reactor 100 comprising a first catalyst 120, the first catalyst 120 being arranged in the first chamber 110, the first reactor 100 further being provided with a first input port 130 and a first output port 140, the first input port 130 and the first output port 140 both being in communication with the first chamber 110. Specifically, the first reactor 100 is in a columnar tank structure, the first input port 130 is arranged at the bottom of the first reactor 100, the first output port 140 is arranged at the top of the first reactor 100, and the first input port 130 and the first output port 140 are arranged on the axis of the first reactor 100.

[0038] The second reactor 200 is provided with a second chamber 210, the second reactor 200 comprising a second catalyst 220, the second catalyst 220 being arranged in the second chamber 210, the second reactor 200 further being provided with a second input port 230, a second output port 240 and a reflux port 250, the second input port 230, the second output port 240 and the reflux port 250 all being in communication with the second chamber 210. Specifically, the second reactor 200 is in a columnar tank structure, the second input port 230 is arranged at the bottom of the second reactor 200, the second output port 240 is arranged at the top of the second reactor 200, and the second input port 230 and the second output port 240 are arranged on the axis of the second reactor 200. Specifically, the reflux port 250 is arranged at one end of the second catalyst 220 outputting qualified wastewater.

[0039] The circulation assembly 300 comprises a connecting pipeline 310 and a reflux pipeline 320, one end of the connecting pipeline 310 being connected with the first output port 140, the other end of the connecting pipeline 310 being connected with the second input port 230, one end of the reflux pipeline 320 being connected with the reflux port 250, the other end of the reflux pipeline 320 being connected with the first input port 130, so that the first reactor 100, the connecting pipeline 310, the second reactor 200 and the reflux pipeline 320 are sequentially connected to form a circulation loop.

[0040] The input assembly 400 comprises an ozone input pipeline 410 and a wastewater input pipeline 420. The ozone input pipeline 410 is connected with the reflux pipeline 320, and is used for inputting ozone into the reflux pipeline 320. The wastewater input pipeline 420 is connected with the first input port 130. The wastewater to be treated is transported into the first reactor 100 through the wastewater input pipeline 420, so that the wastewater to be treated is contacted with ozone and the first catalyst 120 for reaction.

[0041] The output assembly 500 comprises a first output pipeline 510 connected with the second output port 240. After the wastewater is treated by the first reactor 100 and the second reactor 200, the organic pollutants in the wastewater are reduced to reach the discharge standard. The treated wastewater is discharged through the first output pipeline 510.

[0042] The wastewater treatment device provided in the embodiment has the following advantages. The first reactor 100 and the second reactor 200 are arranged. The first catalyst 120 is arranged in the first chamber 110 of the first reactor 100. The ozone and the organic pollutants in the wastewater in the first chamber 110 are contacted with the first catalyst 120 to cause oxidation reaction and decompose the organic pollutants. The second catalyst 220 is arranged in the second chamber 210 of the second reactor 200. The residual ozone and the organic pollutants in the wastewater in the second chamber 210 are contacted with the second catalyst 220 to cause oxidation reaction and completely decompose the organic pollutants. The first reactor 100, the connecting pipeline 310, the second reactor 200 and the reflux pipeline 320 are connected in sequence to form a circulating loop, and the ozone input pipeline 410 is connected to the reflux pipeline 320.

[0043] Before the wastewater is treated, the water that does not need to be treated is circulated in the circulating loop, and the ozone is input into the circulating loop through the ozone input pipeline 410 to form ozone water. After circulating for a certain period of time, the wastewater to be treated is input into the first chamber 110 from the first input port 130 through the wastewater input pipeline 420. The ozone and the wastewater are mixed in the first reactor 100. Then, the wastewater to be treated, the first catalyst 120 and the ozone are decomposed and treated in the first reactor 100. Then, the wastewater and the ozone are further transported into the second reactor 200 through the connecting pipeline 310. The wastewater that is not completely treated and the ozone are further fully degraded in the presence of the second catalyst 220. The treated wastewater reaches the discharge standard. The treated wastewater is output through the first output pipeline 510. The flow rate of the circulating loop increases the flow rate of the wastewater in the first reactor 100 and the second reactor 200. The wastewater, the ozone and the catalyst are fully contacted, the utilization efficiency of the ozone is improved, and the energy consumption is reduced.

[0044] The wastewater treatment device provided by the embodiment of the present application solves the problem of high production and transportation difficulty caused by the high height of a single reactor by connecting the first reactor 100 and the second reactor 200 in series, and the first reactor 100 and the second reactor 200 are both provided with the first catalyst 120 and the second catalyst 220, thereby increasing the three-phase contact time of the catalyst, the wastewater to be treated and the ozone, improving the ozone utilization rate, and having the advantages of convenient production and transportation and high energy consumption utilization rate.

[0045] In combination Figure 2 , a structure diagram of a circulating loop of the wastewater treatment device in the embodiment of the present application is shown, in some embodiments, the first chamber 110 includes a first sub-chamber 111, a second sub-chamber 112 and a third sub-chamber 113, the first sub-chamber 111 is communicated with the third sub-chamber 113 through the second sub-chamber 112, the first catalyst 120 fills the second sub-chamber 112, the first input port 130 is communicated with the first sub-chamber 111, and the first output port 140 is communicated with the third sub-chamber 113. The first reactor 100 is in a columnar structure, and the first chamber 110 is sequentially divided into the first sub-chamber 111, the second sub-chamber 112 and the third sub-chamber 113 along the axial direction of the first reactor 100, so that the first catalyst 120 fills the second sub-chamber 112, and the first input port 130 is arranged in the first sub-chamber 111, and the wastewater and the ozone input into the first sub-chamber 111 must pass through the first catalyst 120 to reach the first output port 140 of the third sub-chamber 113, so that the wastewater and the ozone are fully contacted with the first catalyst 120, the utilization rate of the ozone is improved, and the energy consumption is reduced.

[0046] Similarly, as shown in Figure 2 , the second chamber 210 includes a fourth sub-chamber 211, a fifth sub-chamber 212 and a sixth sub-chamber 213, the fourth sub-chamber 211 is communicated with the sixth sub-chamber 213 through the fifth sub-chamber 212, the second catalyst 220 fills the fifth sub-chamber 212, the second input port 230 is communicated with the fourth sub-chamber 211, and the second output port 240 is communicated with the sixth sub-chamber 213. The second reactor 200 is also in a columnar structure, and the second chamber 210 is sequentially divided into the fourth sub-chamber 211, the fifth sub-chamber 212 and the sixth sub-chamber 213 along the axial direction of the second reactor 200, so that the second catalyst 220 fills the fifth sub-chamber 212, and the second input port 230 is arranged in the fourth sub-chamber 211, and the wastewater and the ozone input into the fourth sub-chamber 211 must pass through the second catalyst 220 to reach the second output port 240 of the sixth sub-chamber 213, so that the wastewater and the ozone are fully contacted with the second catalyst 220, the organic pollutants in the wastewater are further decomposed, the utilization rate of the ozone is improved, and the energy consumption is reduced.

[0047] In an optional embodiment, asFigure 1 As shown, the first reactor 100 comprises a micro-bubble diffuser 150, which is installed in the first chamber 110, and the backflow pipeline 320 is connected to the micro-bubble diffuser 150 through the first input port 130. By arranging the micro-bubble diffuser 150 at the first input port 130, when the ozone in the backflow pipeline 320 and the wastewater to be treated are input into the first input port 130 together, the micro-bubble diffuser 150 separates the ozone gas into micro-bubbles and mixes them with the wastewater to be treated. The form of micro-bubbles enables the ozone to contact the organic matters in the wastewater more fully, improves the utilization rate of ozone, further purifies the wastewater, and makes the effluent water quality reach a higher standard, satisfying more stringent discharge standards of water resources.

[0048] In an alternative embodiment, as shown in Figure 1 and Figure 2 As shown, the first reactor 100 further comprises a first sieve pipe 160, which is installed in the third sub-chamber 113 of the first chamber 110, and the output end of the first sieve pipe 160 is connected to the first output port 140. The pore size of the first sieve pipe 160 is designed and selected to allow the wastewater and small molecules to pass through, while preventing the particles of the first catalyst 120 from passing through, thereby effectively preventing the first catalyst 120 from flowing out of the first reactor 100 with the wastewater, reducing the loss of the first catalyst 120, lowering the operating cost, and maintaining the concentration and activity of the first catalyst 120 in the first reactor 100.

[0049] Similarly, the second reactor 200 further comprises a second sieve pipe 260, which is installed in the sixth sub-chamber 213 of the second chamber 210, and the output end of the second sieve pipe 260 is connected to the second output port 240. The pore size of the second sieve pipe 260 is designed and selected to allow the wastewater and small molecules to pass through, while preventing the particles of the second catalyst 220 from passing through, thereby effectively preventing the second catalyst 220 from flowing out of the second reactor 200 with the wastewater, reducing the loss of the second catalyst 220, lowering the operating cost, and maintaining the concentration and activity of the second catalyst 220 in the second reactor 200.

[0050] In an alternative embodiment, as shown in Figure 1 and Figure 2As shown, the circulating assembly 300 further comprises a backflow valve 321, a circulating pump 322, a circulating water flow meter 323, and a gas-liquid mixer 330, all of which are installed in the backflow pipeline 320. The backflow valve 321 is used to control the flow of the backflow pipeline 320, and the circulating pump 322 is used to drive the water in the circulating loop to flow. When the circulating loop is opened, the backflow valve 321 and the circulating pump 322 are in an open state. The circulating water flow meter 323 is further provided to count the water flow in the circulating loop, and the circulating water flow meter 323 can be interlocked with the circulating pump 322 to control the circulating flow in the specified circulating loop.

[0051] Further, as shown in FIG. 3, the circulating assembly 300 further comprises a circulating water flow meter 323 and a gas-liquid mixer 330. Figure 2 As shown, the gas-liquid mixer 330 comprises a liquid input interface 331, a gas input interface 332, and a gas-liquid output interface 333. The liquid input interface 331 and the gas-liquid output interface 333 are connected to the backflow pipeline 320, and the ozone input pipeline 410 is connected to the gas input interface 332 of the gas-liquid mixer 330. In order to mix ozone into the liquid in the circulating loop, the ozone input pipeline 410 is connected to the gas input interface 332 of the gas-liquid mixer 330, the liquid input interface 331 is connected to the backflow pipeline 320, and then the ozone and the liquid are mixed and output from the gas-liquid output interface 333, so as to fully mix and form ozone water. At this time, the ozone exists in the form of small bubbles, and cooperates with the subsequent micro-bubble diffuser 150 to ensure that the ozone is diffused into the first reactor 100 in the form of micro-bubbles in the wastewater, thereby improving the ozone utilization rate and reducing energy consumption.

[0052] In an exemplary embodiment, when the wastewater treatment device is started, the circulating water in the circulating loop is tap water or water that does not need to be treated. The circulating pump 322 and the backflow valve 321 are opened, the circulating water flows into the backflow pipeline 320 through the backflow port 250 of the second reactor 200, and then sequentially passes through the backflow valve 321, the circulating pump 322, the circulating water flow meter 323, and the gas-liquid mixer 330 to form ozone water, which is then input into the first reactor 100 and then input back into the second reactor 200 through the connecting pipeline 310. The circulating loop has the advantage of simple process flow.

[0053] In an alternative embodiment, the circulating assembly 300 further comprises a control valve, which is provided in the connecting pipeline 310 and is used to control the flow of the connecting pipeline 310.

[0054] In an alternative embodiment, as shown in FIG. 3, the circulating assembly 300 further comprises a circulating water flow meter 323 and a gas-liquid mixer 330. Figure 1As shown, to mix the wastewater to be treated and the ozone water before it enters the first reactor 100, the wastewater inlet pipe 420 is connected to the return pipe 320, and the wastewater inlet pipe 420 is also connected to the return pipe 320 between the steam-water mixer 330 and the first inlet. The wastewater inlet pipe 420 is used to input the wastewater to be treated. By connecting the wastewater inlet pipe 420 to the return pipe 320 located after the output end of the steam-water mixer 330, the wastewater to be treated and the ozone water can be fully mixed.

[0055] In an optional embodiment, such as Figure 1 As shown, the input component 400 also includes an inlet pump 421, an inlet flow meter 422, and an inlet valve 423, all of which are installed in the wastewater inlet pipeline 420. The inlet pump 421 drives the wastewater to be treated to flow in the wastewater inlet pipeline 420, the inlet valve 423 controls the flow rate in the wastewater inlet pipeline 420, and the inlet flow meter 422 is used to count the flow rate of the wastewater entering the wastewater inlet pipeline 420. Through the combined action of the inlet pump 421, the inlet flow meter 422, and the inlet valve 423, the flow rate of the input wastewater to be treated can be interlocked and controlled, resulting in more complete contact between the wastewater, ozone, and catalyst, and thus better treatment effect and higher efficiency of the wastewater treatment device.

[0056] In an optional embodiment, such as Figure 1 As shown, the input component 400 also includes an ozone inlet valve 411 and a check valve 412, which are installed in the ozone input pipeline 410. The ozone inlet valve 411 can be used to control the ozone input flow rate, and the check valve 412 can prevent circulating water from flowing into the ozone input pipeline 410.

[0057] In an optional embodiment, such as Figure 1 As shown, the output component 500 also includes a product water tank 540, which has an inlet 541 and an outlet 542, both of which are connected to the first output pipeline 510. By setting up the product water tank 540, qualified wastewater produced by the second reactor 200 is input into the product water tank 540. After treatment by the first reactor 100 and the second reactor 200, the wastewater meets the qualified discharge standards. The product water tank 540 provides centralized storage space for the treated water. Furthermore, the product water tank 540 is used to allow the treated wastewater to settle, separating any residual ozone from the wastewater and preventing ozone from being released into the environment.

[0058] In an optional embodiment, such as Figure 1As shown, the output assembly 500 further comprises a tail gas destroyer 550 and a second output pipeline 520, the top end of the second reactor 200 is provided with a tail gas outlet 270, one end of the second output pipeline 520 is connected to the tail gas outlet 270, and the other end of the second output pipeline 520 is connected to the tail gas destroyer 550. The tail gas destroyer 550 is used to treat tail gas containing harmful substances such as ozone. After the wastewater is decomposed in the second reactor 200, the remaining ozone is output from the tail gas outlet 270 to the tail gas destroyer 550 through the second output pipeline 520 for decomposition treatment, so as to avoid direct emission of ozone to the environment to cause pollution to the environment.

[0059] Further, as shown in the embodiment of the wastewater treatment device, Figure 1 As shown, the output assembly 500 further comprises a third output pipeline 530, the top end of the water production tank 540 is provided with a gas outlet 543, one end of the third output pipeline 530 is connected to the gas outlet 543, and the other end of the third output pipeline 530 is connected to the tail gas destroyer 550. The qualified wastewater standing in the water production tank 540 can further separate out ozone, and the ozone in the water production tank 540 is transported to the tail gas destroyer 550 through the third output pipeline 530, so as to further avoid emission of ozone to the environment.

[0060] The wastewater treatment device described in the embodiment has the following beneficial effects:

[0061] 1. By connecting the first reactor 100 and the second reactor 200 in series, the problem of high height of a single reactor causing difficulty in production and transportation is solved, and the first reactor 100 and the second reactor 200 are both provided with the first catalyst 120 and the second catalyst 220, so as to increase the three-phase contact time of the catalyst, the wastewater to be treated and ozone, improve the ozone utilization rate, and have the advantages of convenient production and transportation and high energy consumption utilization rate.

[0062] 2. The ozone is connected to the reflux pipeline 320 through the steam-water mixer 330, and then the ozone and the liquid are mixed to form ozone water, at this time the ozone exists in the form of small bubbles, and the subsequent micro-bubble diffuser 150 is connected in series to ensure that the ozone is diffused in the wastewater in the form of micro-bubbles into the first reactor 100, so as to improve the ozone utilization rate and reduce energy consumption.

[0063] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0064] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A wastewater treatment device, characterized in that, include: A first reactor (100) is provided with a first chamber (110). The first reactor (100) includes a first catalyst (120), which is disposed in the first chamber (110). The first reactor (100) is also provided with a first inlet (130) and a first outlet (140), which are both connected to the first chamber (110). The second reactor (200) is provided with a second chamber (210). The second reactor (200) includes a second catalyst (220), which is disposed in the second chamber (210). The second reactor (200) is also provided with a second inlet (230), a second outlet (240), and a reflux port (250). The second inlet (230), the second outlet (240), and the reflux port (250) are all connected to the second chamber (210). A circulation component (300) includes a connecting pipe (310) and a return pipe (320). One end of the connecting pipe (310) is connected to the first output port (140), and the other end of the connecting pipe (310) is connected to the second input port (230). One end of the return pipe (320) is connected to the return port (250), and the other end of the return pipe (320) is connected to the first input port (130). An input component (400) includes an ozone input pipe (410) and a wastewater input pipe (420), wherein the ozone input pipe (410) is connected to the return pipe (320) and the wastewater input pipe (420) is connected to the first input port (130); as well as The output component (500) includes a first output conduit (510) connected to a second output port (240).

2. The wastewater treatment device according to claim 1, characterized in that: The first reactor (100) includes a microbubble diffuser (150), which is installed in the first chamber (110), and the return pipe (320) is connected to the microbubble diffuser (150) through the first inlet (130).

3. The wastewater treatment device according to claim 1, characterized in that: The first reactor (100) further includes a first screen tube (160), which is installed in the first chamber (110), and the output end of the first screen tube (160) is connected to the first output port (140); The second reactor (200) further includes a second screen tube (260), which is installed in the second chamber (210), and the output end of the second screen tube (260) is connected to the second output port (240).

4. The wastewater treatment device according to claim 1, characterized in that: The circulation assembly (300) further includes a return valve (321), a circulation pump (322), a circulating water flow meter (323), and a steam-water mixer (330). The return valve (321), the circulation pump (322), and the circulating water flow meter (323) are all installed in the return pipeline (320). The steam-water mixer (330) includes a liquid input port (331), a gas input port (332), and a steam-water output port (333). The liquid input port (331) and the steam-water output port (333) are connected to the return pipeline (320). The ozone input pipeline (410) is connected to the gas input port (332).

5. The wastewater treatment device according to claim 4, characterized in that: The wastewater input pipeline (420) is connected to the return pipeline (320), and the wastewater input pipeline (420) is connected to the return pipeline (320) between the steam-water mixer (330) and the first input port. The input component (400) also includes an inlet pump (421), an inlet flow meter (422), and an inlet valve (423). The inlet pump (421), the inlet flow meter (422), and the inlet valve (423) are all installed on the wastewater input pipeline (420).

6. The wastewater treatment device according to claim 1, characterized in that: The input component (400) further includes an ozone inlet valve (411) and a check valve (412), which are installed in the ozone input pipeline (410).

7. The wastewater treatment device according to claim 1, characterized in that: The output component (500) also includes a water production tank (540), which has an inlet (541) and an outlet (542) connected to the first output pipeline (510).

8. The wastewater treatment device according to claim 7, characterized in that: The output assembly (500) further includes an exhaust gas disruptor (550) and a second output pipeline (520). The top of the second reactor (200) is provided with an exhaust gas outlet (270). One end of the second output pipeline (520) is connected to the exhaust gas outlet (270), and the other end of the second output pipeline (520) is connected to the exhaust gas disruptor (550).

9. The wastewater treatment apparatus according to claim 8, characterized in that: The output component (500) also includes a third output pipe (530), and the top of the water production tank (540) is provided with an air outlet (543). One end of the third output pipe (530) is connected to the air outlet (543), and the other end of the third output pipe (530) is connected to the exhaust gas destroyer (550).

10. The wastewater treatment apparatus according to any one of claims 1-9, characterized in that: The first chamber (110) includes a first sub-chamber (111), a second sub-chamber (112), and a third sub-chamber (113). The first sub-chamber (111) is connected to the third sub-chamber (113) through the second sub-chamber (112). The first catalyst (120) fills the second sub-chamber (112). The first inlet (130) is connected to the first sub-chamber (111), and the first outlet (140) is connected to the third sub-chamber (113). The second chamber (210) includes a fourth sub-chamber (211), a fifth sub-chamber (212), and a sixth sub-chamber (213). The fourth sub-chamber (211) is connected to the sixth sub-chamber (213) through the fifth sub-chamber (212). The second catalyst (220) fills the fifth sub-chamber (212). The second inlet (230) is connected to the fourth sub-chamber (211), and the second outlet (240) is connected to the sixth sub-chamber (213).

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