Integrated coagulant feeding device

Abstract

The utility model relates to the technical field of industrial wastewater treatment, in particular to an integrated coagulant feeding device, which comprises a wastewater treatment tank, a partition plate, a water inlet, a water outlet, a water inlet, a water outlet, a water inlet, a water outlet and a water outlet, and is characterized in that the partition plate is arranged on the inner wall of the wastewater treatment tank; the partition plate is used for dividing the wastewater treatment tank into a first chamber and a second chamber which are arranged up and down; the water inlet is connected with the first chamber, and the water outlet is connected with the second chamber; the photocatalytic assembly is arranged in the first chamber; the photocatalytic assembly comprises a light source and a photocatalyst feeding structure; the coagulant feeding mechanism is used for feeding a coagulant into the second chamber; wherein the partition plate can rotate, and in a first state after the partition plate rotates, the first cavity and the second cavity are separated; in a second state after the partition plate rotates, the first chamber is communicated with the second chamber, and the effect of preventing coagulation from affecting the photocatalytic reaction is achieved through the design that photocatalysis and coagulation are integrated in the same tank body.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial wastewater treatment technical field especially is a kind of integrated coagulant feeding device. BACKGROUND

[0002] In industrial wastewater treatment, especially in the wastewater treatment of textile printing and dyeing, dye manufacturing and other industries, purification of high colority and refractory organic pollutants is often involved. To achieve standard discharge or reuse, it is often necessary to combine various processes such as advanced oxidation and physical and chemical treatment. Among them, the photocatalytic oxidation technology can effectively destroy the chromophore group and benzene ring structure of dye molecules, and realize deep degradation and mineralization. The coagulation process can efficiently remove suspended particles, colloidal substances and part of macromolecular organic matter in water, and form settleable flocs.

[0003] Currently, in the assembly type sewage treatment field which needs rapid treatment of sewage and has the demand of rapid start and stop of equipment, there is an attempt to integrate the photocatalytic reaction unit and the coagulation and sedimentation unit in the same reactor or compact space. A common method is to add coagulant and stir in the area provided with photocatalytic material. However, a large amount of flocs will be generated rapidly in the coagulation process. These flocs will be attached to and covered on the surface of photocatalyst or suspended in the photocatalytic reaction area under the action of stirring or water flow. This covering and shielding effect seriously hinders the effective irradiation of light source on photocatalytic material, and also reduces the contact probability of pollutant molecules with catalyst active sites, resulting in sharp decline or even complete failure of photocatalytic reaction efficiency. SUMMARY

[0004] Therefore, the purpose of the utility model is to overcome the problem that in the prior art, photocatalytic process and coagulation process are carried out simultaneously in the sewage treatment field with the demand of rapid start and stop. At this time, the coagulation process generates flocs, which blocks the view inside the sewage on the surface of the sewage, so that the light irradiation of photocatalytic reaction is blocked, and the photocatalytic reaction cannot be completely carried out. Specifically, an integrated coagulant feeding device is provided, which separates the photocatalytic process and the coagulation process in the same tank and carries out the photocatalytic process first and then carries out the coagulation process, so as to prevent the flocs generated by coagulation from blocking the photocatalytic reaction.

[0005] To solve the above technical problems, the utility model provides an integrated coagulant feeding device, which comprises a wastewater treatment tank, a water inlet and a water outlet are arranged on the side wall of the wastewater treatment tank, and the feeding device further comprises:

[0006] A partition plate is arranged on the inner wall of the wastewater treatment tank, which is used to separate the wastewater treatment tank into a first chamber and a second chamber arranged in an upper and lower manner. The water inlet is connected to the first chamber, and the water outlet is connected to the second chamber.

[0007] A photocatalysis assembly is arranged in the first chamber, and the photocatalysis assembly comprises a light source and a photocatalyst feeding structure.

[0008] A coagulant feeding mechanism is arranged for feeding coagulant into the second chamber.

[0009] The partition plate is rotatable, and the first chamber and the second chamber are separated in a first state of the partition plate after being rotated.

[0010] In an embodiment of the present application, the photocatalyst feeding structure comprises a water-soluble plate connected with the partition plate, the water-soluble plate comprises a water-soluble part made of water-soluble material and a supporting part supporting the water-soluble part, the water-soluble part is filled with photocatalyst, and the photocatalyst feeding structure further comprises a feeding hole arranged in an array on the surface of the partition plate, and the feeding hole is in communication with the water-soluble part.

[0011] In an embodiment of the present application, a spectrum probe is arranged in the first chamber for detecting the spectrum change of wastewater, and the controller drives the partition plate to rotate when the absorbance of the wastewater is reduced to less than 0.05 Abs.

[0012] In an embodiment of the present application, a sewage scale groove is arranged on the side wall of the first chamber, and the height of the spectrum probe to the bottom of the first chamber is equal to the height of the middle part of the sewage scale groove to the bottom of the first chamber.

[0013] In an embodiment of the present application, a sliding groove is arranged on the inner wall of the first chamber, waterproof silica gel is arranged on the top surface and the bottom surface of the sliding groove respectively, the spectrum probe is inserted between the two waterproof silica gels, and the spectrum probe can slide along the length direction of the sliding groove.

[0014] In an embodiment of the present application, two partition plates are symmetrically arranged.

[0015] In an embodiment of the present application, a sealing element is arranged on each of the two partition plates, and the two sealing elements are extruded with each other when the two partition plates are horizontal.

[0016] In an embodiment of the present application, a pressure sensor is arranged in the second chamber, and the partition plate is in contact with the pressure sensor when the partition plate is rotated to the maximum angle.

[0017] The coagulant feeding device feeds coagulant when the partition plate is in contact with the pressure sensor.

[0018] In one embodiment of the present invention, a coagulation filter screen is provided in the second chamber, which is located directly below the partition plate, and the surface of the coagulation filter screen is provided with filtrate micropores.

[0019] In one embodiment of the present invention, a wind-powered agitator is provided at the bottom of the second chamber, and the wind output direction of the wind-powered agitator is toward the surface of the coagulation filter screen.

[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0021] The integrated coagulant dosing device of this utility model separates the photocatalytic and coagulation processes that interfere with each other in traditional processes in time and space through a rotatable partition plate. At the beginning of the treatment cycle, the partition plate is in the first state and is horizontally closed, and the first chamber forms an independent and closed photocatalytic reaction zone. In this zone, the wastewater is irradiated by the light source and comes into full contact with the photocatalyst under the condition that no coagulation flocs are generated or interfered with, so as to ensure that the photocatalytic oxidation reaction can be carried out with the highest efficiency and thoroughly degrade the target pollutants.

[0022] Moreover, the two complete process sections of photocatalysis and coagulation are completed sequentially in the same wastewater treatment tank through the state switching of the partition plate. This not only achieves process decoupling to eliminate interference, but also maximizes space utilization. The equipment structure is compact, avoiding the pipeline connection required by the traditional separate reaction tanks, significantly reducing the complexity of the system and facilitating rapid start-up and shutdown. Attached Figure Description

[0023] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the structure of an integrated coagulant dispensing device in a preferred embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the wastewater treatment tank in a preferred embodiment of the present invention. Figure One ;

[0026] Figure 3 This is a schematic diagram of the internal structure of the wastewater treatment tank in a preferred embodiment of the present invention. Figure Two ;

[0027] Figure 4 This is a schematic diagram of the internal structure of the wastewater treatment tank in a preferred embodiment of the present invention. Figure Three ;

[0028] Figure 5The utility model discloses a partition plate and photocatalyst feeding structure part structure schematic view.

[0029] Figure 6 For Figure 5 The enlarged view of A in the middle.

[0030] Description of the drawings:

[0031] 1, wastewater treatment jar;11, water inlet;12, water outlet;13, partition plate;131, sealing element;14, first chamber;141, sewage scale groove;142, sliding groove;143, waterproof silica gel;15, second chamber;151, coagulation filter screen;152, filtrate micropore;153, wind agitator;

[0032] 2, photocatalytic assembly;21, light source;22, photocatalyst feeding structure;23, water-soluble plate;231, water-soluble part;232, support part;233, feeding hole;

[0033] 3, coagulant feeding mechanism;4, optical spectrum probe;5, pressure sensor. Specific embodiments

[0034] The utility model makes further explanation in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0035] The embodiment of the utility model is in the sewage treatment field of the prior art that has the demand of quick start and stop, and photocatalytic process and coagulation process are carried out simultaneously, at this time, coagulation process will produce coagulation floc, and the inside view of sewage is shielded on the surface of sewage, so that the light of photocatalytic reaction is shielded, and photocatalytic reaction cannot be completely carried out, and the specific integrated coagulant feeding device is provided, and photocatalytic process and coagulation process are separated in the same jar body, and photocatalytic process is carried out first, and then coagulation process is carried out, so as to prevent the effect of coagulation floc produced by coagulation from blocking photocatalytic reaction.

[0036] Specifically, an integrated coagulant feeding device is provided, and the specific integrated coagulant feeding device is provided with a coagulant feeding mechanism, a photocatalytic assembly and a coagulant feeding mechanism. Figure 1 、 2, 3, including wastewater treatment tank 1, wastewater treatment tank 1 side wall set into water inlet 11 and water outlet 12, the device also includes: partition 13, which is provided in the wastewater treatment tank 1 inner wall, for the wastewater treatment tank 1 is divided into first chamber 14 and second chamber 15 arranged in upper and lower; into water inlet 11 connects the first chamber 14, water outlet 12 connects the second chamber 15; photocatalytic assembly 2, which is provided in the first chamber 14; photocatalytic assembly 2 includes light source 21 and photocatalyst feeding structure 22; coagulant dosing mechanism 3, which is used for the second chamber 15 to put coagulant; wherein, the partition 13 can rotate, the first state of the partition 13 after rotating first chamber 14 and second chamber 15 are cut off; the second state of the partition 13 after rotating first chamber 14 and second chamber 15 are communicated.

[0037] Referring to Figure 1 , 2 , 3, the utility model provides a kind of integrated coagulant dosing device, its main part is a vertical placement's cylinder or box body type wastewater treatment tank 1, into water inlet 11 is provided in the upper portion of the tank wall, lower portion is provided with water outlet 12, for the injection of sewage and the discharge of treated effluent, partition 13 is rotatably installed on the inner wall of wastewater treatment tank 1 by pivot, its core function is dynamically dividing tank space, when partition 13 rotates to first state and is horizontal, it separates the inner cavity of wastewater treatment tank 1 into two independent parts: first chamber 14 located in upper and second chamber 15 located in lower, at this time, the edge between partition 13 and tank inner wall is sealed by sealing structure, so that first chamber 14 and second chamber 15 are completely cut off, not communicated, into water inlet 11 is directly connected with first chamber 14, and into water inlet 11 is connected with second chamber 15, when partition 13 is controlled to rotate to second state, it leaves the passage between upper and lower space, so that first chamber 14 and second chamber 15 are communicated.

[0038] Referring to Figure 1 , 2 , 3, photocatalytic assembly 2 is all arranged in first chamber 14, it is mainly composed of two parts: one is light source 21 providing reaction energy, usually for emitting specific wavelength lamp or LED array, is installed in the top of first chamber 14, for irradiating entire chamber;Second is the photocatalyst feeding structure 22 of bearing and supply catalyst, its basic function is to make photocatalyst and the sewage entering first chamber 14 fully contact;Coagulant dosing mechanism 3 serves second chamber 15, it can be metering pump, storage tank and spray head system, for quantitative coagulant dosing in second chamber 15 at appropriate time.

[0039] Referring to Figure 1 , 2As shown in Figs. 1, 2, 3, at the beginning of the sewage treatment cycle, the partition plate 13 is in the first state of horizontal closing. The sewage enters the closed first chamber 14 from the water inlet 11, at this time, the second chamber 15 is empty and blocked, so no coagulant is put in and no coagulation floc is generated, the first chamber 14 is formed into a photocatalytic reactor, under the irradiation of the light source 21, the target pollutants in the sewage, mainly dye molecules in the present application, have redox reaction with the photocatalyst and are gradually degraded, this process is completely free from any interference of the coagulation process, the light source 21 can irradiate the catalyst and the water body without obstruction, and the catalyst surface will not be covered by the floc, ensuring that the photocatalytic reaction is carried out under the optimal conditions. When the photocatalytic reaction in the first chamber 14 reaches the expected degree, the control system drives the partition plate 13 to rotate to the second state, at this time, the sewage in the first chamber 14, which has been greatly reduced in pollutant concentration after the photocatalytic pretreatment, flows into the second chamber 15 below under the action of gravity, and then or simultaneously, the coagulant feeding mechanism 3 is started to add coagulant into the water in the second chamber 15, in the second chamber 15, the water is subjected to the processes of coagulation, flocculation and sedimentation. Since the photocatalytic reaction has basically ended at this time, the floc generated by coagulation will no longer have any adverse effect on the photocatalytic process, the supernatant after treatment is discharged through the water outlet 12, and the sludge is deposited at the bottom of the tank for regular cleaning.

[0040] Referring to Figure 1 , 3 , 4, 5, in another embodiment, the photocatalyst feeding structure 22 includes a water-soluble plate 23 fixed with the partition plate 13, the water-soluble plate 23 is composed of two parts: a water-soluble part 231 and a support part 232, the water-soluble part 231 is made of water-soluble material polyvinyl alcohol PVA, and the internal cavity is filled with solid or gelatinous photocatalyst fillers such as TiO2 powder, supported catalyst particles, etc., the support part 232 is composed of a rigid or flexible grid material that is insoluble in water, used to support the water-soluble part 231 and maintain its shape, while allowing water flow, on the surface of the partition plate 13, a plurality of feeding holes 233 are arrayed, the positions of these feeding holes 233 correspond to the water-soluble plate 23 and are in communication with the surface of the water-soluble part 231, facilitating the melting of the sewage to release the photocatalyst inside the water-soluble part 231 into the sewage.

[0041] Referring to Figure 1 , 3, 5, 6, after the first chamber 14 is injected with sewage, the water-soluble part 231 gradually dissolves, and the photocatalyst filler encapsulated therein is slowly released into the water, and under the disturbance of water flow or the action of its own gravity, it is dispersed in the entire first chamber 14. The array of feeding holes 233 ensures that the catalyst can be released from multiple points and distributed more evenly. Compared with directly throwing catalyst powder or a fixed packed bed, this way avoids the problems of instantaneous agglomeration of the catalyst or easy blocking of the fixed bed, ensures a larger contact area between the catalyst and the pollutants, and thus ensures that in the independent photocatalytic reaction zone formed by the closing of the partition plate 13, the catalyst can mix with the sewage in an efficient way, thereby strengthening the treatment effect of photocatalysis as a priority process.

[0042] Referring to Figure 1 , 3 , 5, 6, a spectrum probe 4 is arranged in the first chamber 14. The probe is an online ultraviolet-visible (UV-Vis) spectrum probe 4, the optical fiber sensing head of which is immersed in the sewage to monitor the absorbance change of the sewage at a specific wavelength in real time. The probe is connected to a controller. A threshold value is preset in the controller, and the threshold value is absorbance ≤ 0.05 Abs. When the real-time monitoring data shows that the absorbance of the sewage has fallen below the threshold value, the controller issues an instruction to drive the actuator to rotate the partition plate 13 from the first state to the second state. A sewage scale groove 141 is arranged on the side wall of the first chamber 14. It is a transparent window or a section of measuring tube with scales, which is used for intuitive observation or calibration of the liquid level height of the sewage in the first chamber 14. The key is that the height of the spectrum probe 4 to the bottom of the first chamber 14 is set to be equal to the height of the middle of the sewage scale groove 141 to the bottom of the first chamber 14 to adapt to the change of the sewage treatment capacity of different batches, so as to ensure that the spectrum probe 4 can always detect representative water samples rather than water surface foam or by-products caused by photocatalysis. A sliding groove 142 is arranged on the inner wall of the first chamber 14 in the horizontal direction. A waterproof silica gel 143 is arranged at the top and bottom of the sliding groove 142 respectively. The two waterproof silica gels are oppositely arranged and have a certain elastic compression amount. The stem of the spectrum probe 4 is inserted into the sliding groove 142, and the sensing head end thereof is inserted between the two waterproof silica gels 143. The two waterproof silica gels 143 are pressed against each other in the natural state, which not only fixes the stem of the probe, but also forms a good seal to prevent sewage from seeping into the mounting hole or discharging the wastewater treatment tank 1. When it is necessary to adjust the position of the probe, only a certain force needs to be applied to make the probe slide in the sliding groove 142. After adjustment, the probe is automatically fixed by the pressing force of the waterproof silica gel 143.

[0043] Referring to Figure 1 , 2, 3, 4, the spectral probe 4 and threshold judgment logic constitute the core of the device from the photocatalytic stage to the coagulation stage, the threshold of 0.05 Abs can be adjusted according to the actual wastewater and corresponds to the sign that the target dye pollutant has been basically completely photocatalytically degraded, the spectral probe 4 is installed at the height aligned with the middle height of the sewage scale groove 141, in order to ensure that the spectral probe 4 detects the spectral signal of the main water flow area, avoiding the interference of water surface light scattering, tank bottom sediments or possible bubbles on the detection result, thereby ensuring the accuracy and representativeness of the control signal, the spectral probe 4 slides in the sliding groove 142 to ensure that the spectral probe 4 measures the water sample after sufficient photocatalytic reaction but before physical filtration, and the waterproof silica gel 143 is used to prevent sewage leakage during sliding.

[0044] With reference to Figure 1 , 2 , 3, 4, the two symmetrical partition plates 13 are originally one complete partition plate 13, which is composed of two plate bodies with the same shape and size by hinged connection through the rotating shafts on both sides, and the two can rotate synchronously or slightly in sequence like a double-leaf door, using two smaller plates instead of one large plate, the mass and moment of inertia of each plate are reduced, the torque and power required to drive the rotation are correspondingly reduced, which is conducive to using smaller and more economical drive motors, and at the same time, for large treatment tanks, a single large-span plate is prone to deformation under load, and the double-plate structure is more reasonable in mechanics; On the mutual contact edges of the two partition plates 13, sealing elements 131 are arranged, which can be elastic rubber strips, silica gel strips, etc., when the two partition plates 13 are rotated to the horizontal closed state, i.e. the first state, the edges between them are close to each other and aligned, at this time the sealing elements 131 on the two plates are tightly extruded with each other, thereby forming a sealing line between the two partition plates 13, the sealing of the double-plate joint is to prevent the sewage in the first chamber 14 from leaking into the second chamber 15, the mutually extruded sealing elements 131 are arranged, which use the deformation of the elastic material to fill the possible small gaps, thereby improving the sealing reliability of the dynamic sealing place and ensuring that the first chamber 14 can be completely isolated from the lower part during the photocatalytic stage.

[0045] With reference to Figure 1 , 2, 3, 4, in another embodiment, on the inner wall of the second chamber 15, a pressure sensor is provided, which can be a mechanical travel switch or a pressure sensor, and its installation position is calculated so that when the partition plate 13 rotates from the horizontal position to the maximum angle, i.e. the limit position of the second state, usually vertical or close to vertical, the edge or specific part of the partition plate 13 will just contact the sensing part of the pressure sensor, which is electrically connected with the control unit of the coagulant feeding mechanism 3, and its control logic is set as: only when the partition plate 13 contacts the pressure sensor, the coagulant feeding mechanism 3 starts to feed coagulant, establishing the linkage between mechanical position and feeding action, which ensures that the feeding time is absolutely correct, and only when the partition plate 13 is fully opened and the sewage in the first chamber 14 has flowed into the second chamber 15, the feeding is started, avoiding the misfeeding of coagulant into the photocatalytic area which is still running.

[0046] Referring to Figure 1 , 2 , 3, 4, in the second chamber 15, directly below the partition plate 13, a coagulation filter screen 151 is horizontally arranged, the mesh of the filter screen is very small, and its surface is covered with filter micro-holes 152, the size of these micro-holes is designed to allow water molecules and dissolved substances to pass freely, but can effectively intercept the small flocs formed in the coagulation process, when the sewage mixed with coagulant flows through or over the filter screen, the small flocs in the water are collided and intercepted when passing through the filter micro-holes 152, the intercepted flocs become new crystal nuclei, and the subsequent small flocs are more likely to adhere to them, thereby accelerating the aggregation and growth of the flocs, forming larger and denser flocs, which significantly improves the efficiency and speed of coagulation and sedimentation; at the bottom of the second chamber 15, a wind agitator 153 is installed, the wind output direction of the wind agitator 153 is arranged to face upward, towards the surface of the coagulation filter screen 151, the airflow blown from the bottom to the surface of the coagulation filter screen 151 plays multiple roles: first, the airflow drives the water flow during its upward movement, so that the coagulant and sewage are quickly and uniformly mixed in the second chamber 15, avoiding local over-concentration or uneven mixing of the agent, secondly, the airflow produces a continuous scouring effect on the surface of the filter screen, which can effectively prevent the growth of flocs from excessive blocking of the micro-holes of the filter screen, maintaining the long-term unobstructed of the filter screen's filtering channel, realizing the dynamic self-cleaning effect of the filter screen.

[0047] The working process of the integrated coagulant dosing device is as follows: when the device is started, the controller first drives the partition plate 13 to rotate to the first state of horizontal closing, tightly separates the wastewater treatment tank 1 into the first chamber 14 at the upper part and the second chamber 15 at the lower part, and then the wastewater to be treated is injected into the first chamber 14 through the water inlet 11. When the liquid level reaches the predetermined height, the water injection is stopped, and the ultraviolet light source 21 at the top of the first chamber 14 is automatically turned on to start the photocatalytic oxidation stage. The solid photocatalyst encapsulated in the water-soluble plate 23 is released and starts to release slowly after the surface water-soluble film is melted, and is uniformly dispersed in the wastewater. Under the excitation of ultraviolet light, the catalyst degrades the characteristic pollutants such as dye molecules in the wastewater. In this process, the optical spectrum probe 4 immersed in the water continuously monitors the absorbance value of the wastewater at a specific wavelength in real time and transmits the data back to the controller. During the entire photocatalytic stage, the partition plate 13 remains closed, and the second chamber 15 is in an idle state, ensuring that the coagulation process does not interfere with the photocatalytic reaction. When the optical spectrum probe 4 monitors that the absorbance value continuously and stably falls below the preset threshold value 0.05 Abs, the controller determines that the photocatalytic reaction is completed, and then the controller instructs the drive mechanism to rotate the partition plate 13 to the second state of vertical position. When the partition plate 13 rotates to the maximum angle, the edge of the partition plate 13 triggers the pressing sensor installed on the side wall of the second chamber 15. At this time, the pretreated wastewater in the first chamber 14 can flow into the second chamber 15 by gravity. The coagulant dosing mechanism 3 is started to accurately add a certain amount of coagulant to the converged wastewater. After the wastewater and the coagulant are mixed in the second chamber 15, the bottom air stirrer 153 is automatically started to output uniform air flow to the coagulation filter screen 151 upwards. The air flow realizes water flow stirring on one hand, and promotes the formation of alum flowers; on the other hand, it performs air scrubbing on the surface of the filter screen to prevent clogging. The large-size flocs formed by coagulation are effectively intercepted by the coagulation filter screen 151 and further aggregated, while the separated clean water passes through the filter screen and is finally discharged from the water outlet 12, completing the entire treatment cycle. After that, the device is reset to prepare for the next batch of treatment.

[0048] Obviously, the above embodiments are only examples for the purpose of clear illustration, and are not limitations on the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and impossible to exhaust all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present utility model creation.

Claims

1. An integrated coagulant dosing device comprising a wastewater treatment tank, a water inlet and a water outlet are arranged on the side wall of the wastewater treatment tank, characterized in that: The feeding device also comprises: a partition plate arranged on the inner wall of the wastewater treatment tank, for separating the wastewater treatment tank into a first chamber and a second chamber arranged in an up-down manner; the water inlet is connected to the first chamber, and the water outlet is connected to the second chamber; a photocatalytic assembly arranged in the first chamber; the photocatalytic assembly comprises a light source and a photocatalyst feeding structure; a coagulant feeding mechanism for feeding coagulant into the second chamber; wherein the partition plate is rotatable, and the first chamber and the second chamber are separated in a first state after the partition plate is rotated; and the first chamber and the second chamber are communicated in a second state after the partition plate is rotated.

2. The integrated coagulant feeder of claim 1, wherein: The photocatalyst feeding structure comprises a water-soluble plate connected with the partition plate, the water-soluble plate comprises a water-soluble part made of water-soluble material and a support part supporting the water-soluble part, the water-soluble part is filled with photocatalyst, and the photocatalyst feeding structure further comprises a feeding hole arranged in an array on the surface of the partition plate, and the feeding hole is communicated with the water-soluble part.

3. The integrated coagulant feeder of claim 1, wherein: A spectrum probe is arranged in the first chamber for detecting the spectrum change of wastewater, and the partition plate is driven to rotate by a controller when the absorbance of the wastewater is reduced to less than 0.05 Abs.

4. The integrated coagulant feeder of claim 3, wherein: A sewage scale groove is arranged on the side wall of the first chamber, and the height of the spectrum probe to the bottom of the first chamber is equal to the height of the middle part of the sewage scale groove to the bottom of the first chamber.

5. An integrated coagulant dosing device according to claim 4, wherein: A sliding groove is arranged on the inner wall of the first chamber, and waterproof silica gels are arranged on the top surface and the bottom surface of the sliding groove and are pressed against each other, the spectrum probe is inserted between the two waterproof silica gels, and the spectrum probe can slide along the length direction of the sliding groove.

6. The integrated coagulant feeder of claim 1, wherein: The partition plate is symmetrically arranged with two partition plates.

7. An integrated coagulant dosing device according to claim 6, wherein: Sealing members are arranged on the two partition plates, and the two sealing members are pressed against each other when the two partition plates are horizontal.

8. The integrated coagulant feeder of claim 1, wherein: A pressure sensor is arranged in the second chamber, and the partition plate contacts the pressure sensor when the partition plate is rotated to the maximum angle; wherein the coagulant feeding device feeds coagulant when the partition plate contacts the pressure sensor.

9. The integrated coagulant feeder of claim 1, wherein: A coagulation filter screen is arranged in the second chamber, and the coagulation filter screen is arranged directly below the partition plate, and the surface of the coagulation filter screen is provided with filtrate micropores.

10. The integrated coagulant feeder of claim 9, wherein: A wind stirrer is arranged at the bottom of the second chamber, and the wind output direction of the wind stirrer faces the surface of the coagulation filter screen.

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