TGIC wastewater treatment system

Abstract

The utility model discloses a TGIC wastewater treatment system, and relates to the technical field of TGIC wastewater treatment, in particular to a TGIC wastewater treatment system, which is used for purification treatment of TGIC wastewater and comprises an obliquely arranged support frame and a tank body fixedly mounted on the support frame, and a plurality of partition plates are fixedly connected in the tank body; the method comprises the following steps: adding absolute ethyl alcohol into wastewater in a salt precipitation tank to precipitate solid salt, spraying the solid salt by a spraying piece to remove organic matters on the surface, adding water into the solid salt with inorganic salt removed, stirring, heating, and dissolving into an aqueous solution; adding pypocholoride into the aqueous solution in a dosing tank to remove ammonia and organic nitrides in the aqueous solution; in the oxidation pond, organic pollutants such as COD (Chemical Oxygen Demand) and TOC (Total Organic Carbon) in the water solution are removed through a solar simulator and a catalyst containing iron ions, so that the aim of removing the organic pollutants, TOC, COD, chloride ions and the like in the wastewater is fulfilled. The total COD removal rate is high, so that the wastewater can be discharged up to the standard, and the environmental pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of TGIC wastewater treatment, in particular to a TGIC wastewater treatment system. Background Art

[0002] Tri(epoxypropyl)isocyanurate (TGIC) belongs to the cyanuric acid epoxy resin. It is white crystal or granule, easily soluble in halogenated alkane, acetone and benzene, slightly soluble in water and ethanol. As a curing agent in powder coatings, it has better heat resistance, adhesion and excellent high temperature conductivity compared with commonly used epoxy resins. The structural formula of TGIC is as follows: Figure 3 shown.

[0003] The existing production process of TGIC produces a large amount of wastewater containing high salt and organic poisons. If it is discharged directly without treatment, it will inevitably pollute the environment. After searching, the literature (Treatment method of triisocyanurate wastewater, Huang Jinxia et al., "Environmental Protection", Issue 12, 1992) discloses a method for treating TGIC wastewater by coagulation sedimentation-chemical oxidation-activated carbon adsorption. All indicators of the wastewater after three-level treatment by this method meet the national industrial wastewater discharge standards, but this treatment method is only applicable to the old TGIC production process and cannot be applied to the upgraded TGIC clean production process.

[0004] In the published Chinese patent application, the publication number is CN209554969U, and the patent name is: A TGIC wastewater treatment system. The TGIC wastewater treatment system provided by the prior art is provided with a dosing tank and an oxidation tank after salt precipitation to further remove organic pollutants such as ammonia nitrogen compounds, TOC, COD and chloride ions in the wastewater, thereby avoiding the pollution caused to the air by burning the solids after salt precipitation in the traditional treatment system (evaporation concentration tank-salt precipitation tank-in-garden combustion). Although the prior art theoretically uses chemical raw materials to react with TGIC, so that the components in TGIC that are prone to cause pollution are improved, thereby realizing the treatment of TGIC wastewater. However, in recent years, the technical upgrading and transformation of TGIC product production and the implementation of clean production processes have greatly reduced the solid salts and volatile solvents produced, but water is used in the process, so the TGIC production process will still produce process wastewater containing organic matter, which has the characteristics of high COD. If it is directly discharged into the environment, it will cause harm. The ordinary oxidation method and the activated carbon adsorption treatment method have poor operating effects, low overall COD removal rate, and the wastewater cannot meet the discharge standards. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a TGIC wastewater treatment system, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a TGIC wastewater treatment system, which is used for purifying TGIC wastewater, comprises an inclined support frame, and also comprises a tank body fixedly mounted on the support frame, wherein a plurality of partitions are fixedly connected inside the tank body, and each of the partitions divides the inside of the tank body into a sedimentation tank, a salt precipitation tank, a dosing tank, an oxidation tank, and a neutralization tank; the sedimentation tank, the salt precipitation tank, the dosing tank, the oxidation tank, and the neutralization tank on the tank body are connected in sequence; the tank body and the treatment tank located in the sedimentation tank A liquid inlet pipe and a first feed pipe are respectively provided on the tank body and located at the salt precipitation pool, and a first stirring component, an electric heating component and a spray component are respectively provided in the salt precipitation pool; a sixth feed pipe and a second stirring component are provided on the tank body and located at the dosing pool; a fourth feed pipe is provided on the tank body and located at the oxidation pool, and a solar simulator is provided in the oxidation pool; a fifth feed pipe and a second liquid discharge pipe are respectively provided on the tank body and located at the neutralization pool, and a PH sensor is provided in the neutralization pool.

[0009] Optionally, a plurality of drain valves are provided at the lower part of the tank body, and each drain valve is respectively located at a sedimentation tank, a salt precipitation tank, a dosing tank, an oxidation tank, and a neutralization tank.

[0010] Optionally, a filter plate is provided in the sedimentation tank, and a first water pump is fixedly installed on the outer bottom wall of the tank body, the inlet end of the first water pump is connected to the interior of the sedimentation tank, and the outlet end of the first water pump is connected to the interior of the salt precipitation tank.

[0011] Optionally, the first stirring assembly is composed of a first servo motor, a first stirring shaft, and a plurality of first stirring rods. The first servo motor is fixedly mounted on the outer wall of the tank body and close to the salt precipitation pool. The first stirring shaft is located in the salt precipitation pool, and the upper end of the first stirring shaft is coaxially connected to the output shaft of the first servo motor. Each first stirring rod is fixedly mounted on the outer wall of the first stirring shaft.

[0012] Optionally, a baffle is fixedly connected inside the tank body and between the two partitions, the baffle is located at the bottom of the salt precipitation pool, a water reservoir is formed below the baffle, and a first discharge valve is arranged on the baffle.

[0013] Optionally, the salt precipitation pool is connected to the dosing pool, and a second discharge valve is provided at the connection point between the two. The second stirring assembly is composed of a second servo motor, a second stirring shaft and a plurality of second stirring rods. The second servo motor is fixedly mounted on the outer wall of the tank body and close to the dosing pool. One end of the second stirring shaft is coaxially connected to the output shaft of the second servo motor, and the other end of the second stirring shaft is rotatably connected to the inner bottom wall of the tank body. Each of the second stirring rods is fixedly mounted on the outer wall of the second stirring shaft.

[0014] Optionally, a control box is installed on the outer wall of the tank body, and a control panel is arranged in the control box. The control panel is electrically connected to the first stirring component, the electric heating component, the spray component, the second stirring component, the solar simulator, and the pH sensor through wires.

[0015] Optionally, the spray element is composed of a nozzle and a first solenoid valve, and the first solenoid valve is fixedly installed at the inflow end of the nozzle.

[0016] Optionally, a second water pump and a third water pump are fixedly installed on the outer wall of the tank body, respectively, the inlet end of the second water pump is connected to the interior of the dosing tank, the outlet end of the second water pump is connected to the oxidation tank, the inlet end of the third water pump is connected to the oxidation tank, and the outlet end of the third water pump is connected to the interior of the neutralization tank.

[0017] (III) Beneficial effects

[0018] The utility model provides a TGIC wastewater treatment system, which has the following beneficial effects:

[0019] In the TGIC wastewater treatment system, a salt precipitation pool, a dosing pool, and an oxidation pool are arranged in coordination. Anhydrous ethanol is added to the wastewater in the salt precipitation pool to precipitate solid salt, and the solid salt is sprayed by a spraying part to remove organic matter on the surface. After the inorganic salt is removed, the solid salt is added with water and stirred and heated to dissolve into an aqueous solution; in the dosing pool, hypochlorite is added to the aqueous solution to remove ammonia and organic nitrogen compounds in the aqueous solution; in the oxidation pool, organic pollutants such as COD and TOC in the aqueous solution are removed by a solar simulator and an iron ion catalyst, thereby achieving the purpose of removing organic pollutants, TOC, COD, and chloride ions in the wastewater. The overall COD removal rate is high, so that the wastewater can be discharged in compliance with the standards and avoid environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a TGIC wastewater treatment system of the utility model;

[0022] Figure 2 This is a schematic cross-sectional view of a TGIC wastewater treatment system of the utility model;

[0023] Figure 3 is the structural formula of TGIC.

[0024] In the figure: 1, tank; 2, control box; 3, support frame; 4, sedimentation tank; 5, salt precipitation tank; 6, water storage tank; 7, dosing tank; 8, oxidation tank; 9, neutralization tank; 10, liquid inlet pipe; 11, first feed pipe; 12, second feed pipe; 13, steam discharge pipe; 14, spray element; 15, second stirring assembly; 16, fourth feed pipe; 17, fifth feed pipe; 18, first drain valve; 19, second drain valve; 20, The third sewage valve; 21. The fourth sewage valve; 22. The fifth sewage valve; 23. The first water pump; 24. The second water pump; 25. The third water pump; 26. The first liquid discharge pipe; 27. The second liquid discharge pipe; 28. The first leakage valve; 29. ​​The second leakage valve; 30. The pH sensor; 31. The first stirring component; 32. The electric heating element; 33. The solar simulator; 34. The filter plate; 35. The partition; 36. The sixth feed pipe; 37. The baffle. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indications or implications.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0027] For example, see Figure 1 to Figure 2 The utility model provides a technical solution: a TGIC wastewater treatment system, which is used for purifying TGIC wastewater, and includes a support frame 3 arranged obliquely. A TGIC wastewater treatment system also includes a tank body 1 fixedly mounted on the support frame 3, and a plurality of partitions 35 are fixedly connected inside the tank body 1, and each partition 35 divides the inside of the tank body 1 into a sedimentation tank 4, a salt precipitation tank 5, a dosing tank 7, an oxidation tank 8, and a neutralization tank 9. The sedimentation tank 4, the salt precipitation tank 5, the dosing tank 7, the oxidation tank 8, and the neutralization tank 9 on the tank body 1 are connected in sequence.

[0028] Among them, the support frame 3 is used to support and fix the tank body 1. The TGIC wastewater flows in the tank body 1 from the side where the sedimentation tank 4 is located to the side where the neutralization tank 9 is located. The sedimentation tank 4 is used to filter and sediment the wastewater. The salt precipitation tank 5 is used to precipitate solid salt from the wastewater after evaporation and concentration, and add anhydrous ethanol, and remove organic pollutants on the surface of the solid salt. The dosing tank 7 is used to add hypochlorite, preferably sodium hypochlorite, to the wastewater to remove ammonia and organic nitrogen compounds in the wastewater. The oxidation tank 8 is used to perform photo-Fenton oxidation treatment on the wastewater to remove organic pollutants such as COD and TOC in the wastewater.

[0029] A liquid inlet pipe 10 and a first feed pipe 11 are respectively provided on the tank body 1 and located at the sedimentation tank 4. A second feed pipe 12 and a steam discharge pipe 13 are respectively provided on the tank body 1 and located at the salt precipitation tank 5, and a first stirring component 31, an electric heating component 32, and a spray component 14 are respectively provided in the salt precipitation tank 5. A sixth feed pipe 36 and a second stirring component 15 are respectively provided on the tank body 1 and located at the dosing tank 7. A fourth feed pipe 16 is provided on the tank body 1 and located at the oxidation tank 8, and a solar simulator 33 is provided in the oxidation tank 8. A fifth feed pipe 17 and a second liquid discharge pipe 27 are respectively provided on the tank body 1 and located at the neutralization tank 9, and a pH sensor 30 is provided in the neutralization tank 9.

[0030] Among them, the liquid inlet pipe 10 is used to inject TGIC wastewater into the sedimentation tank 4, and the first feed pipe 11 is used to add flocculants into the sedimentation tank 4 to enhance the sedimentation of particles in the wastewater. The second feed pipe 12 is used to add anhydrous ethanol to the salt precipitation tank 5, and the steam exhaust pipe 13 is used to discharge the steam in the salt precipitation tank 5. The outflow end of the steam exhaust pipe 13 is connected to the existing steam treatment equipment, and the existing steam treatment equipment is used to recover or purify steam. The first stirring component 31 is used to stir the wastewater or solid salt in the salt precipitation tank 5. The electric heating element 32 adopts an electric heating wire to heat the waste liquid in the salt precipitation tank 5. The spraying element 14 is used to spray solid salt to remove organic pollutants on the surface of the solid salt. The sixth feed pipe 36 is used to add hypochlorite to the dosing tank 7, and the hypochlorite is preferably sodium hypochlorite. The second stirring component 15 is used to stir the aqueous solution in the dosing tank 7. The fourth feed pipe 16 is used to add a catalyst containing iron ions to the oxidation tank 8. The solar simulator 33 is used to simulate solar radiation, that is, simulate light. The aqueous solution removes organic pollutants such as COD and TOC under the action of a catalyst containing iron ions and a solar simulator 33. In the photo-Fenton process, a photosensitizer (such as an iron compound) is used to catalyze hydrogen peroxide (H2O2) under light (usually ultraviolet light) to produce highly oxidizing hydroxyl radicals (OH•). These hydroxyl radicals can non-selectively oxidize and mineralize organic pollutants in water, converting them into harmless carbon dioxide (CO2) and water (H2O). The fifth feed pipe 17 is used to add a substance that adjusts the pH value of the aqueous solution to the neutralization tank 9 so that the pH value of the aqueous solution meets the standard. The pH sensor 30 is used to detect the pH value in the neutralization tank 9.

[0031] Among them, TGIC wastewater is injected into the sedimentation tank 4 through the liquid inlet pipe 10, and flocculants and the like are added to the liquid inlet pipe 10 through the first feed pipe 11, so that the particles in the wastewater are fully settled in the sedimentation tank 4. The wastewater after settling flows into the salt precipitation tank 5, and the wastewater in the salt precipitation tank 5 is heated by the electric heating element 32, the wastewater is heated to boiling, and the water therein is evaporated to remove the water until crystalline solids are precipitated, and part of the evaporated steam is discharged through the steam discharge pipe 13. Anhydrous ethanol is added to the salt precipitation tank 5 through the second feed pipe 12, and the anhydrous ethanol is mixed with the aqueous solution to precipitate solid salt. The solid salt is heated twice by the electric heating element 32 to dry the solid salt. Thereafter, clean water is sprayed through the spray element 14 (the inflow end of the spray element 14 is connected to the existing water supply equipment), and the clean water rinses the organic matter on the surface of the solid salt. After cleaning, water is injected into the salt precipitation pool 5 through the spraying part 14 to dissolve the solid salt, and the solid salt dissolution is accelerated by starting the first stirring component 31 and the electric heating component 32. After the solid salt is dissolved, an aqueous solution is formed. Thereafter, the aqueous solution flows into the dosing pool 7, and hypochlorite is added to the dosing pool 7 through the sixth feed pipe 36. The hypochlorite is preferably sodium hypochlorite. The sodium hypochlorite is mixed with the aqueous solution, and the second stirring component 15 is started to stir the sodium hypochlorite and the aqueous solution so that the two are fully mixed to remove ammonia and organic nitrogen compounds in the wastewater. Thereafter, the aqueous solution flows into the oxidation pool 8, and a catalyst containing iron ions is added to the oxidation pool 8 through the fourth feed pipe 16, and the solar simulator 33 is started to remove organic pollutants such as COD and TOC in the wastewater. Thereafter, the aqueous solution flows into the neutralization pool 9, and a substance for adjusting the pH value of the aqueous solution is added to the neutralization pool 9 through the fifth feed pipe 17, so that the pH value of the aqueous solution meets the standard. After the above wastewater treatment process, the water is discharged through the second drain pipe 27.

[0032] Specifically, the first stirring assembly 31 is composed of a first servo motor, a first stirring shaft, and a plurality of first stirring rods. The first servo motor is fixedly mounted on the outer wall of the tank body 1 and is close to the salt precipitation pool 5. The first stirring shaft is located in the salt precipitation pool 5, and the upper end of the first stirring shaft is coaxially connected to the output shaft of the first servo motor. Each first stirring rod is fixedly mounted on the outer wall of the first stirring shaft.

[0033] After the first servo motor is started, it drives the first stirring shaft to rotate, and the first stirring shaft drives each first stirring rod to rotate, thereby stirring the substances in the salt precipitation pool 5.

[0034] Specifically, the salt precipitation pool 5 is connected to the dosing pool 7, and a second discharge valve 29 is provided at the connection point between the two. The second stirring assembly 15 is composed of a second servo motor, a second stirring shaft and a plurality of second stirring rods. The second servo motor is fixedly mounted on the outer wall of the tank body 1 and is close to the dosing pool 7. One end of the second stirring shaft is coaxially connected to the output shaft of the second servo motor, and the other end of the second stirring shaft is rotatably connected to the inner bottom wall of the tank body 1. Each second stirring rod is fixedly mounted on the outer wall of the second stirring shaft.

[0035] The aqueous solution in the salt precipitation pool 5 flows into the dosing pool 7 through the second discharge valve 29. After the second servo motor is started, it drives the second stirring shaft to rotate, and the second stirring shaft drives each second stirring rod to rotate, thereby achieving stirring of the material in the dosing pool 7.

[0036] Specifically, the spraying member 14 is composed of a nozzle and a first solenoid valve, and the first solenoid valve is fixedly installed at the inflow end of the nozzle.

[0037] The nozzle may be a light angle nozzle, and the first solenoid valve is used to control the on and off of the nozzle.

[0038] Specifically, the second water pump 24 and the third water pump 25 are fixedly installed on the outer wall of the tank body 1, respectively. The inlet end of the second water pump 24 is connected to the interior of the dosing tank 7, and the outlet end of the second water pump 24 is connected to the oxidation tank 8. The inlet end of the third water pump 25 is connected to the oxidation tank 8, and the outlet end of the third water pump 25 is connected to the interior of the neutralization tank 9.

[0039] The first water pump 23 is used to transport the aqueous solution in the dosing tank 7 to the oxidation tank 8 , and the third water pump 25 is used to transport the aqueous solution in the oxidation tank 8 to the neutralization tank 9 .

[0040] Specifically, a control box 2 is installed on the outer wall of the tank body 1, and a control panel is arranged in the control box 2. The control panel is electrically connected to the first stirring component 31, the electric heating component 32, the spray component 14, the second stirring component 15, the solar simulator 33, and the pH sensor 30 through wires.

[0041] The control board can be an editable logic controller or a single-chip microcomputer, and the control board is equipped with a logic control program and a timing control program, and is used to control the start and stop of each electrical component. The control board is electrically connected to the first servo motor, the second servo motor, and the first solenoid valve through wires.

[0042] For example 2, please refer to Figure 1 to Figure 2 The main difference between this embodiment and the first embodiment is that a plurality of drain valves are arranged at the lower part of the tank body 1, and each drain valve is respectively located at the sedimentation tank 4, the salt precipitation tank 5, the dosing tank 7, the oxidation tank 8, and the neutralization tank 9.

[0043] The first drain valve 18 is provided on the sedimentation tank 4, the second drain valve 19 is provided on the dosing tank 7, the third drain valve 20 is provided on the oxidation tank 8, and the fourth drain valve 21 is provided on the neutralization tank 9.

[0044] Specifically, a filter plate 34 is provided in the sedimentation tank 4 , a first water pump 23 is fixedly installed on the outer bottom wall of the tank body 1 , an inlet end of the first water pump 23 is connected to the interior of the sedimentation tank 4 , and an outlet end of the first water pump 23 is connected to the interior of the salt precipitation tank 5 .

[0045] The filter plate 34 is used for preliminarily filtering particles in the wastewater, and the filter plate 34 is detachable. The first water pump 23 is used for transporting the wastewater in the sedimentation tank 4 to the salt precipitation tank 5 .

[0046] Specifically, a baffle 37 is fixedly connected inside the tank body 1 and between the two partitions 35 . The baffle 37 is located at the bottom of the salt precipitation pool 5 . A water reservoir 6 is formed below the baffle 37 . A first discharge valve 28 is provided on the baffle 37 .

[0047] Among them, a fifth sewage valve 22 is provided on the water reservoir 6. The first drain valve 28 is used to discharge the aqueous solution when washing the organic matter on the surface of the solid salt after opening. A first liquid discharge pipe 26 is provided on the tank body 1 and located at the water reservoir 6. The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical solution and the utility model concept of the utility model, shall be covered within the protection scope of the utility model.

Claims

1. A TGIC wastewater treatment system for purifying TGIC wastewater, comprising an inclined support frame (3), characterized in that: It also comprises a tank body (1) fixedly mounted on a support frame (3), wherein a plurality of partitions (35) are fixedly connected inside the tank body (1), and each of the partitions (35) divides the inside of the tank body (1) into a sedimentation tank (4), a salt precipitation tank (5), a dosing tank (7), an oxidation tank (8), and a neutralization tank (9); the sedimentation tank (4), the salt precipitation tank (5), the dosing tank (7), the oxidation tank (8), and the neutralization tank (9) on the tank body (1) are connected in sequence; A liquid inlet pipe (10) and a first feed pipe (11) are respectively arranged on the tank body (1) and located at the sedimentation tank (4); a second feed pipe (12) and a steam discharge pipe (13) are respectively arranged on the tank body (1) and located at the salt precipitation tank (5); a first stirring assembly (31), an electric heating element (32) and a spray element (14) are respectively arranged in the salt precipitation tank (5); a sixth feed pipe (36) and a second stirring assembly (15) are respectively arranged on the tank body (1) and located at the dosing tank (7); a fourth feed pipe (16) is respectively arranged on the tank body (1) and located at the oxidation tank (8); a solar simulator (33) is arranged in the oxidation tank (8); a fifth feed pipe (17) and a second liquid discharge pipe (27) are respectively arranged on the tank body (1) and located at the neutralization tank (9); a pH sensor (30) is arranged in the neutralization tank (9).

2. A TGIC wastewater treatment system according to claim 1, characterized in that: A plurality of sewage valves are arranged at the lower part of the tank body (1), and each sewage valve is located at a sedimentation tank (4), a salt precipitation tank (5), a dosing tank (7), an oxidation tank (8), and a neutralization tank (9).

3. A TGIC wastewater treatment system according to claim 1, characterized in that: A filter plate (34) is provided in the sedimentation tank (4), and a first water pump (23) is fixedly mounted on the outer bottom wall of the tank body (1); an inflow end of the first water pump (23) is connected to the interior of the sedimentation tank (4), and an outflow end of the first water pump (23) is connected to the interior of the salt precipitation tank (5).

4. A TGIC wastewater treatment system according to claim 1, characterized in that: The first stirring assembly (31) is composed of a first servo motor, a first stirring shaft, and a plurality of first stirring rods. The first servo motor is fixedly mounted on the outer wall of the tank body (1) and close to the salt precipitation pool (5). The first stirring shaft is located in the salt precipitation pool (5), and the upper end of the first stirring shaft is coaxially connected to the output shaft of the first servo motor. Each first stirring rod is fixedly mounted on the outer wall of the first stirring shaft.

5. A TGIC wastewater treatment system according to claim 1, characterized in that: A baffle (37) is fixedly connected inside the tank body (1) and between the two partitions (35); the baffle (37) is located at the bottom of the salt precipitation pool (5); a water reservoir (6) is formed below the baffle (37); and a first discharge valve (28) is provided on the baffle (37).

6. A TGIC wastewater treatment system according to claim 1, characterized in that: The salt precipitation pool (5) is connected to the dosing pool (7), and a second discharge valve (29) is provided at the connection point between the two. The second stirring assembly (15) is composed of a second servo motor, a second stirring shaft and a plurality of second stirring rods. The second servo motor is fixedly mounted on the outer wall of the tank body (1) and close to the dosing pool (7). One end of the second stirring shaft is coaxially connected to the output shaft of the second servo motor. The other end of the second stirring shaft is rotatably connected to the inner bottom wall of the tank body (1). Each of the second stirring rods is fixedly mounted on the outer wall of the second stirring shaft.

7. A TGIC wastewater treatment system according to claim 1, characterized in that: A control box (2) is installed on the outer wall of the tank body (1), and a control panel is arranged in the control box (2). The control panel is electrically connected to the first stirring component (31), the electric heating component (32), the spray component (14), the second stirring component (15), the solar simulator (33), and the pH sensor (30) through wires.

8. A TGIC wastewater treatment system according to claim 1, characterized in that: The spray element (14) is composed of a nozzle and a first solenoid valve, and the first solenoid valve is fixedly mounted on the inflow end of the nozzle.

9. A TGIC wastewater treatment system according to claim 1, characterized in that: A second water pump (24) and a third water pump (25) are fixedly mounted on the outer side wall of the tank body (1), respectively; the inflow end of the second water pump (24) is connected to the interior of the dosing tank (7), the outflow end of the second water pump (24) is connected to the oxidation tank (8), the inflow end of the third water pump (25) is connected to the oxidation tank (8), and the outflow end of the third water pump (25) is connected to the interior of the neutralization tank (9).

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