Wastewater advanced treatment device based on hydrogen peroxide
By combining a spiral stirring blade driven by a drive motor with a graded filter screen, the problem of uneven mixing in hydrogen peroxide wastewater treatment devices is solved, achieving efficient removal of organic pollutants and improved treatment stability.
Patent Information
- Application Number
- CN202511435029.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2025-12-09
AI Technical Summary
Traditional hydrogen peroxide-based wastewater treatment devices suffer from uneven mixing, resulting in low efficiency in generating hydroxyl radicals and insufficient removal of organic pollutants. In particular, when treating high-concentration organic wastewater, hydrogen peroxide needs to be added repeatedly, increasing costs and causing unstable effluent quality.
The spiral stirring blade structure driven by a drive motor, combined with a graded filter screen, achieves thorough mixing and graded filtration of hydrogen peroxide and wastewater. Parameters can be monitored and adjusted in real time through an observation window, forming a linkage function between mechanical mixing and real-time monitoring to prevent impurities from clogging the system.
It improves the efficiency of hydroxyl radical generation and the removal rate of organic pollutants, is suitable for the treatment of high-concentration organic wastewater, reduces reagent costs and improves treatment stability.
Smart Images
Figure CN121085409A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater deep treatment device based on hydrogen peroxide. Background Technology
[0002] In the field of industrial wastewater treatment, high-concentration organic wastewater (such as chemical, dyeing, and pharmaceutical wastewater) contains recalcitrant organic pollutants (such as phenols, anilines, and COD), making it a key focus and challenge in wastewater treatment. Direct discharge of this type of wastewater will severely pollute aquatic ecosystems and damage aquatic environments. Therefore, advanced treatment technologies are needed to reduce pollutant concentrations to meet discharge standards. Hydrogen peroxide oxidation technology, which generates highly oxidizing hydroxyl radicals, can efficiently degrade organic pollutants and is widely used in advanced wastewater treatment. However, traditional hydrogen peroxide-based wastewater treatment devices have many technical shortcomings: uneven mixing of hydrogen peroxide and wastewater, low treatment efficiency, and traditional hydrogen peroxide wastewater treatment devices often employ... The "static mixing" mode—hydrogen peroxide is directly injected into the wastewater through a dosing pipe, relying solely on the flow of the wastewater for mixing. The mixing uniformity is less than 60-70%. This method results in localized excessively high hydrogen peroxide concentrations (easily decomposed and ineffective) and localized excessively low concentrations (inability to fully oxidize pollutants). The efficiency of hydroxyl radical generation is low, and the removal rate of organic pollutants can only reach 50-60%. Especially when treating high-concentration organic wastewater (COD≥500mg / L), hydrogen peroxide needs to be repeatedly added, which not only increases the cost of reagents (increasing the cost per treatment by 30-50%), but also easily leads to fluctuations in effluent quality and poor treatment stability. Therefore, we propose a wastewater deep treatment device based on hydrogen peroxide. Summary of the Invention
[0003] The purpose of this invention is to provide a wastewater deep treatment device based on hydrogen peroxide.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen peroxide-based wastewater deep treatment device, comprising a treatment tank, a movable rod movably installed at the top of the inside of the treatment tank, and a spiral stirring blade fixedly installed on the surface of the movable rod, a dosing pipe and a wastewater pipe being fixedly installed in sequence on the top of the treatment tank, a water outlet pipe being fixedly installed at the bottom of the treatment tank, an air outlet pipe being fixedly installed on the surface of the treatment tank, and a drive motor being fixedly installed on the top of the treatment tank, with the output shaft of the drive motor being fixedly connected to the movable rod.
[0005] As a further embodiment of the present invention: a filter box is fixedly installed at the bottom of the wastewater pipe, and a filter screen plate one and a filter screen plate two are fixedly installed in sequence inside the filter box.
[0006] As a further aspect of the present invention: three sets of support legs are fixedly installed at the bottom of the processing box, and each of the three sets of support legs is fixedly installed with a base.
[0007] As a further aspect of the present invention: an observation window is fixedly installed on the surface of the processing box.
[0008] As a further aspect of the present invention: a motor protective cover is provided on the top of the processing box, the drive motor is located inside the motor protective cover, and heat dissipation grooves are provided on the surface of the motor protective cover.
[0009] As a further aspect of the present invention: a flange is provided at the top of the wastewater pipe, and bolts are installed on the surface knob of the flange.
[0010] As a further aspect of the present invention: the filter box, filter screen one, filter screen two, treatment box, spiral stirring blades, and outlet pipe form a "staged filtration-anti-clogging and stirring" linkage function: the filter box is fixed to the bottom of the wastewater pipe, and filter screen one and filter screen two are installed sequentially inside the filter box along the wastewater flow direction; when wastewater enters the filter box through the wastewater pipe, filter screen one intercepts large particulate impurities, and filter screen two filters fine colloids; the wastewater that has undergone two stages of filtration flows into the treatment box, avoiding impurities from adhering to the surface of the spiral stirring blades and interfering with mixing, while also preventing impurities from accumulating and clogging the outlet pipe.
[0011] As a further aspect of the present invention: the observation window, treatment tank, dosing pipe, and drive motor form a "real-time monitoring-parameter control" linkage function: the observation window is fixed on the surface of the treatment tank, and the staff can intuitively observe the mixing uniformity and reaction intensity of wastewater and hydrogen peroxide in the treatment tank through the observation window; based on the observation results, the hydrogen peroxide dosing acceleration rate of the dosing pipe is adjusted, or the output speed of the drive motor is adjusted to change the stirring intensity of the spiral stirring blades, so as to adapt to the treatment needs of different water qualities.
[0012] As a further aspect of the present invention: the motor protective cover, the heat dissipation slots and the drive motor form a “protection-heat dissipation” synergistic function: the motor protective cover is placed on the outside of the drive motor to physically block the impact of external objects on the drive motor; the heat dissipation slots are evenly opened on the surface of the motor protective cover to form an air circulation channel to remove the heat generated by the operation of the drive motor; the two work together to protect the drive motor from mechanical damage and maintain its stable operating temperature.
[0013] As a further aspect of the present invention: the flange, bolts and wastewater pipe form a "pipeline docking-sealing and fixing" function: the flange is fixed to the top end of the wastewater pipe, and its bolt hole is aligned with the flange bolt hole of the external wastewater conveying pipe; the bolt passes through the aligned bolt hole and is tightened to achieve a rigid connection between the wastewater pipe and the external pipe. Through the fit of the flange end face and the tightening force of the bolt, wastewater leakage at the connection is prevented.
[0014] Compared with the prior art, the beneficial effects of the present invention by adopting the above technical solution are as follows: 1. This invention, through a mechanical mixing structure of a drive motor and spiral stirring blades, enables hydrogen peroxide to come into full contact with wastewater. Compared with traditional static mixing, the efficiency of hydroxyl radical generation is improved, and the removal rate of organic pollutants is increased. It is especially suitable for the treatment of high-concentration organic wastewater, and features deep oxidation and high mixing efficiency, resulting in a significant improvement in treatment effect. 2. This invention can remove suspended solids in wastewater in stages through filter screen one and filter screen two in the filter box. Filter screen one intercepts large particulate impurities, and filter screen two filters fine colloids, thereby improving the removal rate of suspended solids and avoiding impurities from adhering to the surface of the spiral stirring blades and affecting the mixing effect or clogging the outlet pipe.
[0015] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram of the processing box structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the processing box of the present invention; Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.
[0017] In the diagram: 1. Treatment box; 2. Movable rod; 3. Spiral stirring blades; 4. Dosing pipe; 5. Wastewater pipe; 6. Filter screen one; 7. Filter screen two; 8. Air outlet pipe; 9. Drive motor; 10. Water outlet pipe; 11. Motor protective cover; 12. Heat dissipation groove; 13. Flange; 14. Bolt; 15. Observation window; 16. Support leg; 17. Base; 18. Filter box. Detailed Implementation
[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.
[0019] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0020] Please see the appendix Figure 1 -Appendix Figure 4This invention provides a hydrogen peroxide-based wastewater deep treatment device, including a treatment tank 1. A movable rod 2 is movably installed at the top of the inside of the treatment tank 1, and a spiral stirring blade 3 is fixedly installed on the surface of the movable rod 2. A dosing pipe 4 and a wastewater pipe 5 are fixedly installed on the top of the treatment tank 1 in sequence. A water outlet pipe 10 is fixedly installed at the bottom of the treatment tank 1. An air outlet pipe 8 is fixedly installed on the surface of the treatment tank 1. A drive motor 9 is fixedly installed on the top of the treatment tank 1, and the output shaft of the drive motor 9 is fixedly connected to the movable rod 2. The above scheme utilizes a mechanical mixing structure consisting of a drive motor 9 and spiral stirring blades 3 to ensure full contact between hydrogen peroxide and wastewater. Compared to traditional static mixing, this improves the efficiency of hydroxyl radical generation and the removal rate of organic pollutants. It is particularly suitable for treating high-concentration organic wastewater, featuring deep oxidation and efficient mixing, resulting in significantly improved treatment performance.
[0021] like Figure 4 As shown, a filter box 18 is fixedly installed at the bottom of the wastewater pipe 5, and filter screen plate 6 and filter screen plate 7 are fixedly installed inside the filter box 18 in sequence. Using the above scheme: the suspended solids in the wastewater can be removed in stages by the filter screen 6 and filter screen 7 in the filter box 18. The filter screen 6 intercepts large particles of impurities, and the filter screen 7 filters fine colloids, thereby improving the removal rate of suspended solids and avoiding impurities from adhering to the surface of the spiral stirring blades 3 and affecting the mixing effect, or clogging the outlet pipe 10.
[0022] like Figure 1 As shown, three sets of support legs 16 are fixedly installed at the bottom of the processing box 1, and a base 17 is fixedly installed at the bottom of each of the three sets of support legs 16. The above solution involves fixing three sets of support legs 16 at the bottom of the processing box 1, with each set of support legs 16 having a base 17 fixedly installed at its bottom. This distributes the weight of the device and improves the stability of the device during operation.
[0023] like Figure 1 As shown, an observation window 15 is fixedly installed on the surface of the processing box 1; The above solution involves fixing an observation window 15 to the surface of the processing box 1, allowing staff to observe the specific conditions inside the processing box 1.
[0024] like Figure 1 As shown, a motor protective cover 11 is provided on the top of the processing box 1, and the drive motor 9 is located inside the motor protective cover 11. A heat dissipation groove 12 is provided on the surface of the motor protective cover 11. The above solution is adopted: by setting a motor protective cover 11 on the top of the processing box 1, and the drive motor 9 is located inside the motor protective cover 11, the drive motor 9 can be protected from damage caused by impact from objects. Heat dissipation grooves 12 are provided on the surface of the motor protective cover 11 to improve the heat dissipation of the drive motor 9.
[0025] like Figure 1 As shown, a flange 13 is provided at the top of the wastewater pipe 5, and bolts 14 are installed on the surface knob of the flange 13. The above solution is adopted: by installing a flange 13 on the top of the wastewater pipe 5, and mounting bolts 14 on the surface knob of the flange 13, the wastewater pipe 5 can be connected and fixed to the wastewater connection pipe.
[0026] In this invention, the filter box 18, filter screen 6, filter screen 7, treatment box 1, spiral stirring blades 3, and outlet pipe 10 form a "staged filtration - anti-clogging and stirring" linkage function: the filter box 18 is fixed to the bottom of the wastewater pipe 5, and filter screen 6 and filter screen 7 are installed sequentially inside the filter box 18 along the wastewater flow direction; when wastewater enters the filter box 18 through the wastewater pipe 5, filter screen 6 intercepts large particles of impurities, and filter screen 7 filters fine colloids; the wastewater that has undergone two stages of filtration flows into the treatment box 1, avoiding impurities from adhering to the surface of the spiral stirring blades 3 and interfering with mixing, while also preventing impurities from accumulating and clogging the outlet pipe 10.
[0027] In this invention, the observation window 15, treatment tank 1, dosing pipe 4, and drive motor 9 form a "real-time monitoring-parameter control" linkage function: the observation window 15 is fixed to the surface of treatment tank 1, and the staff can directly observe the mixing uniformity and reaction intensity of wastewater and hydrogen peroxide in treatment tank 1 through the observation window 15; based on the observation results, the hydrogen peroxide dosing acceleration rate of dosing pipe 4 is adjusted, or the output speed of drive motor 9 is adjusted to change the stirring intensity of spiral stirring blades 3, so as to adapt to the treatment needs of different water qualities.
[0028] In this invention, the motor protective cover 11, the heat dissipation groove 12, and the drive motor 9 form a "protection-heat dissipation" synergistic function: the motor protective cover 11 is placed on the outside of the drive motor 9, physically blocking the impact of external objects on the drive motor 9; the heat dissipation groove 12 is evenly opened on the surface of the motor protective cover 11, forming an air circulation channel to remove the heat generated by the drive motor 9 during operation; the two work together to protect the drive motor 9 from mechanical damage and maintain its stable operating temperature.
[0029] In this invention, the flange 13, bolt 14 and wastewater pipe 5 form a "pipeline docking-sealing and fixing" function: the flange 13 is fixed to the top port of the wastewater pipe 5, and its bolt hole is aligned with the flange bolt hole of the external wastewater conveying pipe; the bolt 14 passes through the aligned bolt hole and is tightened to achieve a rigid connection between the wastewater pipe 5 and the external pipe. Through the end face of the flange 13 fitting together and the tightening force of the bolt 14, wastewater leakage at the connection is prevented.
[0030] Working principle: Check that the three sets of support legs 16 at the bottom of the treatment box 1 are firmly connected to the base 17 to ensure that the device is stable and does not shake. Test the operation of the drive motor 9. The output shaft of the drive motor 9 drives the movable rod 2 and the spiral stirring blade 3 to rotate smoothly without jamming or abnormal noise. Check that the dosing pipe 4, wastewater pipe 5, water outlet pipe 10, and air outlet pipe 8 are not blocked. The bolts 14 on the flange 13 are intact. Confirm that the filter screen 6 and filter screen 7 in the filter box 18 are not damaged. The observation window 15 has good transparency and can clearly observe the inside of the treatment box 1. Set the treatment parameters according to the wastewater quality. Preset the hydrogen peroxide dosage through the dosing pipe 4. Set the speed of the drive motor 9 to ensure that the spiral stirring blade 3 fully mixes the wastewater and hydrogen peroxide. Adjust the valve opening of the water outlet pipe 10 to control the wastewater treatment flow and adapt to the treatment capacity of the device. The wastewater to be treated is connected to the device through the flange 13 at the top of the wastewater pipe 5. The pipe connection is reinforced with bolts 14 to prevent wastewater leakage. The wastewater first enters the filter box 18 and passes through the first filter screen 6 to filter large suspended particles and the second filter screen 7 to filter fine suspended particles. The pretreated wastewater flows into the treatment box 1 through the bottom of the wastewater pipe 5 to avoid impurities clogging the treatment box 1 or affecting the hydrogen peroxide oxidation effect. Hydrogen peroxide is added into the treatment box 1 through the dosing pipe 4. The drive motor 9 is started, and the movable rod 2 drives the spiral stirring blade 3 to rotate at high speed, so that the hydrogen peroxide and wastewater are fully mixed. Under suitable conditions, the hydrogen peroxide decomposes to produce hydroxyl radicals, which efficiently oxidize the organic pollutants in the wastewater. The gas generated during the reaction is discharged through the gas outlet pipe 8 to avoid excessive gas pressure in the treatment box 1. The staff can observe the reaction in the treatment box 1 in real time through the observation window 15 to ensure that the reaction proceeds normally. After confirming that the wastewater treatment meets the standards, open the valve of the outlet pipe 10 to discharge the treated wastewater to the subsequent water body or reuse system. During the discharge process, continuously monitor the water quality of the effluent. If water quality fluctuations occur, immediately close the valve and investigate the problem.
[0031] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.
[0032] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.
[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.
[0034] For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.
Claims
1. A hydrogen peroxide-based wastewater deep treatment device, comprising a treatment tank (1), characterized in that: The top of the treatment box (1) is movably mounted with a movable rod (2), and a spiral stirring blade (3) is fixedly mounted on the surface of the movable rod (2). A dosing pipe (4) and a wastewater pipe (5) are fixedly mounted on the top of the treatment box (1). A water outlet pipe (10) is fixedly mounted on the bottom of the treatment box (1). An air outlet pipe (8) is fixedly mounted on the surface of the treatment box (1). A drive motor (9) is fixedly mounted on the top of the treatment box (1), and the output shaft of the drive motor (9) is fixedly connected to the movable rod (2).
2. The wastewater deep treatment device based on hydrogen peroxide according to claim 1, characterized in that: A filter box (18) is fixedly installed at the bottom of the wastewater pipe (5), and a filter screen plate one (6) and a filter screen plate two (7) are fixedly installed inside the filter box (18) in sequence.
3. The wastewater deep treatment device based on hydrogen peroxide according to claim 1, characterized in that: The bottom of the processing box (1) is fixedly equipped with three sets of support legs (16), and the bottom of each of the three sets of support legs (16) is fixedly equipped with a base (17).
4. The wastewater deep treatment device based on hydrogen peroxide according to claim 1, characterized in that: An observation window (15) is fixedly installed on the surface of the processing box (1).
5. The wastewater deep treatment device based on hydrogen peroxide according to claim 1, characterized in that: The top of the processing box (1) is provided with a motor protective cover (11), the drive motor (9) is located inside the motor protective cover (11), and the surface of the motor protective cover (11) is provided with heat dissipation grooves (12).
6. The wastewater deep treatment device based on hydrogen peroxide according to claim 1, characterized in that: The top of the wastewater pipe (5) is provided with a flange (13), and the surface knob of the flange (13) is fitted with bolts (14).
7. The wastewater deep treatment device based on hydrogen peroxide according to claim 2, characterized in that, The filter box (18) is fixed to the bottom of the wastewater pipe (5). Filter screen one (6) and filter screen two (7) are installed in sequence inside the filter box (18) along the direction of wastewater flow. When the wastewater enters the filter box (18) through the wastewater pipe (5), filter screen one (6) intercepts large particles of impurities, and filter screen two (7) filters fine colloids. The wastewater that has been filtered through the two stages flows into the treatment box (1).
8. The wastewater deep treatment device based on hydrogen peroxide according to claim 4, characterized in that, The observation window (15) is fixed to the surface of the treatment box (1). The staff can directly observe the uniformity of the mixing of wastewater and hydrogen peroxide in the treatment box (1) and the intensity of the reaction through the observation window (15); adjust the hydrogen peroxide dosing acceleration rate of the dosing pipe (4), or adjust the output speed of the drive motor (9) to change the stirring intensity of the spiral stirring blade (3).
9. A wastewater deep treatment device based on hydrogen peroxide according to claim 5, characterized in that, The motor protective cover (11) is placed on the outside of the drive motor (9) to physically block the impact of external objects on the drive motor (9); the heat dissipation grooves (12) are evenly opened on the surface of the motor protective cover (11) to form an air circulation channel to carry away the heat generated by the drive motor (9) during operation.
10. A wastewater deep treatment device based on hydrogen peroxide according to claim 6, characterized in that, The flange (13) is fixed to the top port of the wastewater pipe (5), and its screw hole is aligned with the flange screw hole of the external wastewater conveying pipe; the bolt (14) passes through the aligned screw hole and is tightened to complete the rigid connection between the wastewater pipe (5) and the external pipe.