Movable three-phase Fenton process wastewater treatment device

Abstract

The utility model discloses a movable three-phase Fenton method wastewater treatment device, which relates to the field of wastewater treatment, and is characterized by comprising a reaction device main body, an aeration system arranged in the reaction device main body, and two filler chambers arranged in the reaction device main body, the reaction device main body is sequentially divided into a first-stage reaction area, a second-stage reaction area and a settling area from left to right by the two filler chambers, a water inlet channel is arranged at the upper end of one side, far away from the second-stage reaction area, of the first-stage reaction area, and a water outlet channel is arranged on one side, far away from the second-stage reaction area, of the settling area; medicament tanks for feeding medicaments are arranged above the first-stage reaction area and the second-stage reaction area, and a plurality of water flow baffles are arranged in the first-stage reaction area and the second-stage reaction area. The reaction device main body is sequentially divided into the first-stage reaction area, the second-stage reaction area and the settling area from left to right through the two filler chambers, and the reaction retention time of wastewater during operation is prolonged in a wastewater zigzag flow direction operation mode, so that the Fenton reaction is more thorough.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, and more specifically, it relates to a movable three-phase Fenton method wastewater treatment device. Background Technique

[0002] The Fenton oxidation technology is a method for treating organic wastes and sewage by using chemical reactions, which can degrade the organic matters in wastewater.

[0003] The existing Fenton oxidation devices usually include a reaction container, a mixing device, a control system and a monitoring system. However, when the traditional Fenton reaction device is used for wastewater treatment, the Fenton reagent and the wastewater to be treated are prone to the problems of insufficient and uneven mixing, which will result in poor treatment effect and require a long reaction time to ensure that the wastewater is fully oxidized.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a movable three-phase Fenton method wastewater treatment device, in which the Fenton reagent and the wastewater are fully and evenly mixed, the efficiency of wastewater oxidation treatment is improved, and the dosage of the reagent is saved.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: The movable three-phase Fenton method wastewater treatment device includes a reaction device main body, an aeration system is arranged inside it, two packing chambers are arranged inside the reaction device main body, and the packing chambers divide the reaction device main body into a primary reaction zone, a secondary reaction zone and a sedimentation zone from left to right in sequence. An inlet channel is arranged at the upper end of the side of the primary reaction zone far away from the secondary reaction zone, an outlet channel is arranged at the side of the sedimentation zone far away from the secondary reaction zone, a pH adjustment device for adjusting the pH value of the influent is arranged on the inlet channel, medicine tanks for putting medicine are arranged above both the primary reaction zone and the secondary reaction zone, a number of water flow baffles are arranged in the primary reaction zone and the secondary reaction zone, and stirring devices are arranged in both the primary reaction zone and the secondary reaction zone.

[0007] The utility model is further arranged as follows: Overflow weirs are arranged between the inlet channel and the primary reaction zone and between the outlet channel and the sedimentation zone, and a number of grooves with a triangular cross-sectional shape are evenly arranged on the overflow weir along the water flow direction.

[0008] The utility model is further arranged as follows: The medicine tank puts medicine through a medicine distribution device, the medicine distribution device includes a shell, a medicine pipeline and a transfer pump, one end of the medicine pipeline is connected to the medicine tank, the other end is connected to the shell, and a number of distribution holes are arranged at the bottom of the shell.

[0009] The present utility model is further configured as follows: sludge hoppers are provided at the bottoms of the primary reaction zone, the secondary reaction zone, and the sedimentation zone. A sludge gate is provided on the sludge hopper, and a sludge conveyor belt corresponding to the position of the sludge gate is provided below the sludge hopper.

[0010] The present utility model is further configured as follows: a device base for fixing the main body of the reaction device is provided below the main body of the reaction device, and moving rollers are provided at the bottom of the device base.

[0011] The present utility model is further configured as follows: the aeration system includes an aerator, an aeration pipe, and an aeration head, and the air outlet direction of the aeration head is downward.

[0012] The present utility model is further configured as follows: the pH adjustment device includes a measuring instrument for measuring the pH value of the influent water, a pH adjustment chemical tank, a solenoid valve for controlling the opening and closing of the pH adjustment chemical tank, and a controller. The measuring instrument is electrically connected to the input end of the controller, and the solenoid valve is electrically connected to the output end of the controller.

[0013] The present utility model is further configured as follows: an antifoaming injector is provided between the primary reaction zone and the secondary reaction zone.

[0014] In summary, the present utility model has the following beneficial effects:

[0015] The present utility model is provided with two packing chambers. The two packing chambers divide the main body of the reaction device into a primary reaction zone, a secondary reaction zone, and a sedimentation zone in sequence from left to right. A number of water flow baffles are provided in the primary reaction zone and the secondary reaction zone. During use, after the wastewater is initially oxidized in the primary reaction zone, the wastewater needs to pass through the packing chamber and enter the secondary reaction zone. Similarly, the wastewater finally enters the sedimentation zone. Finally, the upper clear water in the sedimentation zone flows out of the main body of the reaction device through the water outlet channel. The wastewater is added with medicine twice in the primary reaction zone and the secondary reaction zone respectively, which can make the medicine reaction more sufficient and the utilization rate higher. The running mode of the wastewater with a tortuous flow direction increases the reaction residence time of the wastewater during operation. The wastewater continuously flows out of the pool body while reacting, which can realize continuous influent and effluent and continuous operation of the Fenton oxidation reaction, making the Fenton reaction more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the overflow weir in the present utility model;

[0018] Figure 3 is a schematic structural diagram of the chemical distribution device in the present utility model.

[0019] In the figure: 1. Stuffing chamber; 2. Primary reaction zone; 3. Secondary reaction zone; 4. Sedimentation zone; 5. Inlet channel; 6. Outlet channel; 7. pH adjustment device; 8. Chemical agent tank; 9. Water flow baffle; 10. Stirring device; 11. Overflow weir; 12. Groove; 13. Shell; 14. Chemical agent pipeline; 15. Transfer pump; 16. Distribution holes; 17. Mud collecting hopper; 18. Sludge door; 19. Sludge conveyor belt; 20. Moving roller; 21. Aeration head; 22. Measuring instrument; 23. pH adjustment chemical agent tank; 24. Defoaming ejector. Specific implementation mode

[0020] The following combines the attached drawings and embodiments to describe the present utility model in detail.

[0021] Embodiment: A movable three-phase Fenton wastewater treatment device, as Figure 1 shown, includes a reaction device main body, which is internally provided with an aeration system, capable of improving the mixing and dispersion degree of the chemical agent and water, thereby improving the oxidation efficiency. There are two stuffing chambers 1 arranged in the reaction device main body. The stuffing chamber 1 is filled with stuffing with a catalytic effect. The looseness of the stuffing can ensure the normal passage of water flow. After the wastewater mixed with the chemical agent passes through the stuffing chamber 1, the pollutants in the water can be further removed under the catalytic action. The two stuffing chambers 1 divide the reaction device main body into a primary reaction zone 2, a secondary reaction zone 3, and a sedimentation zone 4 from left to right in sequence. An inlet channel 5 is arranged at the upper end of the side of the primary reaction zone 2 away from the secondary reaction zone 3. An outlet channel 6 is arranged at the side of the sedimentation zone 4 away from the secondary reaction zone 3. A pH adjustment device 7 for adjusting the pH value of the influent water is arranged on the inlet channel 5. Chemical agent tanks 8 for injecting chemical agents are arranged above both the primary reaction zone 2 and the secondary reaction zone 3. A number of water flow baffles 9 are arranged in the primary reaction zone 2 and the secondary reaction zone 3. Stirring devices 10 are arranged in both the primary reaction zone 2 and the secondary reaction zone 3. During use, the wastewater to be treated flows into the inlet channel 5 through the inlet pipeline. The wastewater overflows into the primary reaction zone 2 through the overflow weir 11. The wastewater in the primary reaction zone 2 will flow through the bottom and top of the water flow baffle 9 in sequence and enter the next area. After the preliminary oxidation in the primary reaction zone 2, the wastewater passes through the stuffing chamber 1 and enters the secondary reaction zone 3. Similarly, the wastewater finally enters the sedimentation zone 4. Finally, the upper clear water in the sedimentation zone 4 overflows to the outlet channel 6 through the overflow weir 11 and flows out of the reaction device main body. The wastewater is added with chemical agents twice in the primary reaction zone 2 and the secondary reaction zone 3 respectively. At the same time, the chemical agent is catalyzed by the catalyst in the stuffing chamber during the reaction process, which can make the chemical agent react more fully and have a higher utilization rate. The cooperation of the aeration system and the stirring device makes the wastewater and the chemical agent mix more fully. The running mode of the wastewater with a tortuous flow direction increases the reaction residence time of the wastewater during operation. The wastewater continuously flows out of the pool body while reacting, which can realize the continuous influent and effluent and continuous operation of the Fenton oxidation reaction, making the Fenton reaction more thorough.

[0022] An overflow weir 11 is provided between the inlet channel 5 and the primary reaction zone 2 and between the outlet channel 6 and the sedimentation zone 3. A plurality of grooves 12 with triangular cross-sections are evenly provided on the overflow weir 11 along the direction of water flow, so that water flows in and out of the reaction zone in the form of overflow, making the wastewater distribution more uniform. At the same time, the flow rate can be better controlled.

[0023] The medicine tank 8 is loaded with medicine through a medicine distribution device, which includes a shell 13, a medicine pipeline 14 and a transfer pump 15. One end of the medicine pipeline 14 is connected to the medicine tank 8, and the other end is connected to the shell 13. A plurality of distribution holes 16 are provided at the bottom of the shell 13. The medicine is distributed to the corresponding reaction area through the distribution holes 16 to prevent the medicine from splashing and wasting, and also to make the medicine be released more evenly.

[0024] A sludge collecting hopper 17 is provided at the bottom of the primary reaction zone 2, the secondary reaction zone 3 and the sedimentation zone 4. A sludge hopper door 18 is provided on the sludge collecting hopper 17. A sludge conveyor belt 19 corresponding to the position of the sludge hopper door 18 is provided below the sludge collecting hopper 17. The sludge dust in the wastewater will settle at the bottom of the primary reaction zone 2, the secondary reaction zone 3 and the sedimentation zone 4. The sludge hopper door 18 can be opened regularly to discharge the sludge in the sludge collecting hopper 17 onto the sludge conveyor belt 19, thereby realizing the collection of sludge and preventing excessive sludge from accumulating at the bottom of the primary reaction zone 2, the secondary reaction zone 3 and the sedimentation zone 4.

[0025] A device base for fixing the reaction device body is arranged below the reaction device body, and a moving roller 20 is arranged at the bottom of the device base. The moving roller 20 can realize the movement of the device, and can be used to treat sudden and malignant water sources.

[0026] The aeration system includes an aerator, an aeration pipeline and an aeration head 21. The air outlet direction of the aeration head 21 is downward, and the air outlet of the aeration head 21 is downward to prevent sludge from falling directly into the air outlet and causing blockage.

[0027] The pH adjusting device 7 includes a measuring instrument 22 for measuring the pH value of the influent, a pH adjusting agent tank 23, a solenoid valve for controlling the opening and closing of the pH adjusting agent tank 23, and a controller. The measuring instrument 22 is electrically connected to the input end of the controller, and the solenoid valve is electrically connected to the output end of the controller. When the measuring instrument 22 detects that the influent pH does not conform to the preset pH value range, the controller will control the solenoid valve to control the pH adjusting agent tank 23 to release the agent for adjustment, thereby making the wastewater suitable for Fenton reaction.

[0028] A defoaming injector 24 is arranged between the primary reaction zone and the secondary reaction zone. The defoaming injector 24 can inject defoaming agent into the primary reaction zone and the secondary reaction zone to destroy the bubbles in the upper layer of the primary reaction zone and the secondary reaction zone to avoid a large amount of foam from accumulating in the upper layer.

[0029] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A mobile three-phase Fenton wastewater treatment device, comprising a reaction device body, wherein an aeration system is provided in the reaction device body, characterized in that: Two packing chambers (1) are arranged in the reaction device body, and the two packing chambers (1) divide the reaction device body into a primary reaction zone (2), a secondary reaction zone (3) and a precipitation zone (4) from left to right. A water inlet channel (5) is arranged at the upper end of the primary reaction zone (2) away from the secondary reaction zone (3), and a water outlet channel (6) is arranged at the side of the precipitation zone (4) away from the secondary reaction zone (3). A pH adjustment device (7) for adjusting the pH value of the inlet water is arranged on the water inlet channel (5). A medicine tank (8) for adding medicine is arranged above the primary reaction zone (2) and the secondary reaction zone (3). A plurality of water flow baffles (9) are arranged in the primary reaction zone (2) and the secondary reaction zone (3), and a stirring device (10) is arranged in the primary reaction zone (2) and the secondary reaction zone (3).

2. A mobile three-phase Fenton wastewater treatment device according to claim 1, characterized in that: An overflow weir (11) is provided between the water inlet channel (5) and the primary reaction zone (2) and between the water outlet channel (6) and the sedimentation zone (4), and a plurality of grooves (12) having a triangular cross-sectional shape are evenly provided on the overflow weir (11) along the water flow direction.

3. A mobile three-phase Fenton wastewater treatment device according to claim 1, characterized in that: The medicine tank (8) is dosed with medicine via a medicine distribution device, wherein the medicine distribution device comprises a shell (13), a medicine pipeline (14) and a delivery pump (15), wherein one end of the medicine pipeline (14) is connected to the medicine tank (8) and the other end is connected to the shell (13), and a plurality of distribution holes (16) are provided at the bottom of the shell (13).

4. A mobile three-phase Fenton wastewater treatment device according to claim 1, characterized in that: A sludge collecting hopper (17) is provided at the bottom of the primary reaction zone (2), the secondary reaction zone (3) and the sedimentation zone (4); a sludge hopper door (18) is provided on the sludge collecting hopper (17); and a sludge conveyor belt (19) corresponding to the position of the sludge hopper door (18) is provided below the sludge collecting hopper (17).

5. The mobile three-phase Fenton wastewater treatment device according to claim 1, characterized in that: A device base for fixing the reaction device body is arranged below the reaction device body, and a movable roller (20) is arranged at the bottom of the device base.

6. The mobile three-phase Fenton wastewater treatment device according to claim 1, characterized in that: The aeration system comprises an aerator, an aeration pipeline and an aeration head (21), and the air outlet direction of the aeration head (21) is downward.

7. The mobile three-phase Fenton wastewater treatment device according to claim 1, characterized in that: The pH adjustment device (7) comprises a measuring instrument (22) for measuring the pH value of the influent water, a pH adjustment agent tank (23), a solenoid valve for controlling the opening and closing of the pH adjustment agent tank (23), and a controller, wherein the measuring instrument (22) is electrically connected to the input end of the controller, and the solenoid valve is electrically connected to the output end of the controller.

8. The mobile three-phase Fenton wastewater treatment device according to claim 1, characterized in that: A defoaming ejector (24) is provided between the primary reaction zone and the secondary reaction zone.

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