deep oxidation treatment equipment for wastewater
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2026-08-11
AI Technical Summary
[0004]本实用新型的目的是为了解决现有技术中无综合调节池均质，水质水量波动，如印染厂换班时废水浓度突变，直接冲击后续工艺，处理效率波动超 50%；未预处理高毒废水，如电镀废水的氰化物，厌氧好氧微生物死亡率超 60% - 80%，系统频繁重启；传统氧化仅表面降解，难降解物质占比仍超40% - 50%，后续生化池负荷过高，污泥膨胀风险＞40% ，出水难达标；间歇式操作如芬顿反应需 8 - 12h，设备闲置率超30% - 50%，日产水仅为连续工艺的二分之一到三分之一，且容易厌氧好氧中毒的问题，而提出的废水深度氧化处理设备
本实用新型中，高浓度废水、低浓度废水、反冲水首先汇入废水综合调节池，通过停留、混合实现水质和水量的均质化，消除冲击负荷；调节后的废水经泵提升进入一级反应器，与厌氧或好氧系统、深度氧化单元协同，完成污染物降解；再经二级反应器定向降解“顽固污染物”，保障出水指标稳定达标，调节废水 pH ，为后续膜滤、臭氧单元提供适配水质，再通过三级反应器4深度脱色、脱味，提升出水感官质量，降解一级、二级反应器残留的微量难降解物，保障最终出水 COD、TOC 等指标优于排放标准，消毒灭菌，灭活废水中抗性菌、病毒，避免生态风险，精细处理，最终达标排放，三重反应器的设置，处理效果更好，废水深度氧化提升可生化性，适合连续性运行兼具高效性，三重氧化深度降解，降低厌氧好氧中毒风险。
Smart Images
Figure CN224619795U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to equipment for deep oxidation treatment of wastewater. Background Technology
[0002] With increasingly stringent environmental protection requirements and more complex industrial wastewater composition, the treatment of high-concentration, recalcitrant organic wastewater (such as wastewater from the chemical, pharmaceutical, and dyeing industries) has become a challenge. Traditional processes (such as simple Fenton and direct anaerobic-aerobic processes) have drawbacks such as weak shock resistance, susceptibility to microbial poisoning, and insufficient improvement in biodegradability, making it difficult to consistently meet standards.
[0003] Current deep oxidation treatment equipment for wastewater lacks a comprehensive equalization tank for homogenization, resulting in fluctuations in water quality and quantity. For example, sudden changes in wastewater concentration during shift changes in dyeing and printing plants directly impact subsequent processes, causing treatment efficiency fluctuations exceeding 50%. For untreated highly toxic wastewater, such as cyanide in electroplating wastewater, the mortality rate of anaerobic and aerobic microorganisms exceeds 60%-80%, leading to frequent system restarts. Traditional oxidation only achieves surface degradation, with recalcitrant substances still accounting for over 40%-50%, resulting in excessive load on subsequent biological treatment tanks, a sludge bulking risk greater than 40%, and effluent failing to meet standards. Intermittent operations, such as the Fenton reaction, require 8-12 hours, leading to equipment idle rates exceeding 30%-50%, with daily water production only half to one-third of continuous processes, and a high risk of anaerobic and aerobic poisoning. Utility Model Content
[0004] The purpose of this invention is to address the problems in existing technologies, such as the lack of a comprehensive equalization tank for homogenization, fluctuations in water quality and quantity (e.g., sudden changes in wastewater concentration during shift changes in dyeing and printing plants directly impacting subsequent processes and causing treatment efficiency fluctuations exceeding 50%); untreated highly toxic wastewater, such as cyanide in electroplating wastewater, suffers from anaerobic and aerobic microbial mortality rates exceeding 60%-80%, leading to frequent system restarts; traditional oxidation only achieves surface degradation, with recalcitrant substances still accounting for over 40%-50%, resulting in excessive load on subsequent biological treatment tanks, a sludge bulking risk greater than 40%, and effluent failing to meet standards; intermittent operations, such as the Fenton reaction requiring 8-12 hours, result in equipment idle rates exceeding 30%-50%, with daily water production only half to one-third of continuous processes, and a high risk of anaerobic and aerobic poisoning. The proposed deep oxidation treatment equipment addresses these issues.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wastewater deep oxidation treatment device, comprising a wastewater comprehensive equalization tank, a primary reactor connected to one side of the wastewater comprehensive equalization tank, a secondary reactor connected to one side of the primary reactor, a tertiary reactor connected to one side of the secondary reactor, an iron-carbon reactor connected to one side of the tertiary reactor, a sedimentation tank connected to one side of the iron-carbon reactor, a support fixed at the top of the wastewater comprehensive equalization tank, a movable frame provided inside the support, a support block provided inside the movable frame, a motor provided at the top of the support block, the output end of the motor passing through the bottom end of the support block and fixed with a stirring shaft, multiple stirring rods fixed on the outer wall of the stirring shaft, and a drive structure for driving the stirring shaft to move in multiple directions provided inside the support.
[0006] Preferably, the drive structure includes a first electric telescopic rod installed on the inner wall of the bracket, the output end of the first electric telescopic rod being fixed to the movable frame, and a second electric telescopic rod installed on the inner wall of the movable frame, the output end of the second electric telescopic rod being fixed to the support block.
[0007] Preferably, both ends of the wastewater comprehensive regulating tank, primary reactor, secondary reactor, tertiary reactor, iron-carbon reactor, and sedimentation tank are fixed with connecting pipes.
[0008] Preferably, both ends of the support block and the movable frame are fixed with stabilizing blocks, and both ends of the inner wall of the movable frame and the bracket are provided with stabilizing grooves that match the stabilizing blocks.
[0009] Preferably, a flange is fixed to the outer wall of one end of the connecting pipe, and each pair of opposite flanges is fixed together by bolts.
[0010] Preferably, a fixing frame is fixed to the top of the support block, and the motor is mounted on the inner top wall of the fixing frame.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, high-concentration wastewater, low-concentration wastewater, and backwash water first converge in a comprehensive wastewater equalization tank. Through retention and mixing, the water quality and quantity are homogenized, eliminating shock loads. The equalized wastewater is then pumped into a primary reactor, where it works in conjunction with anaerobic or aerobic systems and deep oxidation units to degrade pollutants. A secondary reactor then performs targeted degradation of "stubborn pollutants," ensuring stable effluent standards and adjusting the wastewater pH to provide suitable water quality for subsequent membrane filtration and ozone units. Finally, a tertiary reactor performs deep decolorization and deodorization, improving the sensory quality of the effluent and degrading trace amounts of recalcitrant pollutants remaining in the primary and secondary reactors. This ensures that the final effluent's COD and TOC levels are superior to discharge standards. Disinfection and sterilization are performed to inactivate resistant bacteria and viruses in the wastewater, avoiding ecological risks. This refined treatment ensures compliant discharge. The triple reactor setup results in better treatment performance; deep oxidation enhances the biodegradability of the wastewater, making it suitable for continuous operation with high efficiency. The triple oxidation process also reduces the risk of anaerobic / aerobic poisoning. Attached Figure Description
[0012] Figure 1 A perspective view of the wastewater deep oxidation treatment equipment is provided for this utility model; Figure 2 A cross-sectional view of a wastewater deep oxidation treatment device is provided for this utility model; Figure 3 This utility model presents a schematic diagram of the external structure of the treatment tank of a wastewater deep oxidation treatment device; Figure 4 This utility model presents a cross-sectional view of the internal structure of the treatment tank of a wastewater deep oxidation treatment device.
[0013] Legend: 1. Wastewater equalization tank; 2. Primary reactor; 3. Secondary reactor; 4. Tertiary reactor; 5. Iron-carbon reactor; 6. Settling tank; 7. Connecting pipe; 8. Flange; 9. Bolt; 10. Bracket; 11. Movable frame; 12. Support block; 13. Motor; 14. Stirring shaft; 15. Stirring rod; 16. Fixed frame; 17. Drive structure; 1701. First electric telescopic rod; 1702. Second electric telescopic rod; 18. Stabilizing block; 19. Stabilizing trough. Detailed Implementation
[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0016] Example 1, such as Figure 1-4 As shown, this utility model provides a wastewater deep oxidation treatment device, including a wastewater comprehensive equalization tank 1. A primary reactor 2 is connected to one side of the wastewater comprehensive equalization tank 1. A secondary reactor 3 is connected to one side of the primary reactor 2. A tertiary reactor 4 is connected to one side of the secondary reactor 3. An iron-carbon reactor 5 is connected to one side of the tertiary reactor 4. A sedimentation tank 6 is connected to one side of the iron-carbon reactor 5. A bracket 10 is fixed at the top of the wastewater comprehensive equalization tank 1. A movable frame 11 is provided inside the bracket 10. A support block 12 is provided inside the movable frame 11. A motor 13 is provided at the top of the support block 12. The output end of the motor 13 passes through the bottom end of the support block 12 and is fixed with a stirring shaft 14. Multiple stirring rods 15 are fixed on the outer wall of the stirring shaft 14. A drive structure 17 for driving the stirring shaft 14 to move in multiple directions is provided inside the bracket 10.
[0017] The overall effect of Example 1 is as follows: High-concentration wastewater, low-concentration wastewater, and backwash water first flow into the wastewater equalization tank 1, where water quality and quantity are homogenized through retention and mixing, eliminating shock loads. The equalized wastewater is then pumped into the primary reactor 2, where it works in conjunction with the anaerobic or aerobic system and the deep oxidation unit to complete pollutant degradation. Next, the secondary reactor 3 degrades "stubborn pollutants" to ensure stable effluent indicators meet standards, adjusts the wastewater pH to provide suitable water quality for subsequent membrane filtration and ozone units, and then passes through the tertiary reactor 4 for deep decolorization and deodorization, improving the sensory quality of the effluent and degrading trace amounts of recalcitrant substances remaining in the primary and secondary reactors 3, ensuring that the final effluent COD and TOC levels are within acceptable limits. The indicators are better than the emission standards. Disinfection and sterilization are carried out to inactivate resistant bacteria and viruses in the wastewater and avoid ecological risks. Finally, through the setting of iron-carbon reactor 5, it can undergo a reduction reaction with many recalcitrant organics in the wastewater, destroy their unsaturated bonds, decompose large organic molecules into small organic molecules, and improve the biodegradability of the wastewater. When iron-carbon reactor 5 is running, strong sulfuric acid is added. The sulfuric acid can dissolve these passivation films, allowing iron to continuously participate in the micro-electrolysis reaction and maintain the high-efficiency operation of the reactor. Finally, the wastewater will enter the sedimentation tank 6 for sedimentation treatment. The operation of motor 13 drives the stirring shaft 14 to rotate, thereby driving the stirring rod 15 to rotate, and stirring and mixing the wastewater in the wastewater comprehensive conditioning tank 1.
[0018] Example 2, as Figure 1-4As shown, the drive structure 17 includes a first electric telescopic rod 1701 installed on the inner wall of the bracket 10. The output end of the first electric telescopic rod 1701 is fixed to the movable frame 11. A second electric telescopic rod 1702 is installed on the inner wall of the movable frame 11. The output end of the second electric telescopic rod 1702 is fixed to the support block 12. Both ends of the wastewater integrated regulating tank 1, the primary reactor 2, the secondary reactor 3, the tertiary reactor 4, the iron-carbon reactor 5, and the sedimentation tank 6 are all fixed with connecting pipes 7. Both ends of the support block 12 and the movable frame 11 are fixed with stabilizing blocks 18. Both ends of the inner wall of the movable frame 11 and the bracket 10 are provided with stabilizing grooves 19 that match the stabilizing blocks 18. One end of the connecting pipe 7 is fixed with a flange 8. Each pair of opposite flanges 8 are fixed with bolts 9. The top of the support block 12 is fixed with a fixing frame 16. The motor 13 is installed on the inner top wall of the fixing frame 16.
[0019] The overall effect of Embodiment 2 is as follows: the operation of the first electric telescopic rod 1701 drives the entire moving frame 11 to move vertically, thereby driving the entire stirring shaft 14 to move vertically. At the same time, the operation of the second electric telescopic rod 1702 drives the support block 12 slidably connected inside the moving frame 11 to adjust its lateral position. This allows the stirring shaft 14 to adjust not only its vertical position but also its lateral position, enabling the stirring shaft 14 to move in multiple directions within the wastewater comprehensive regulating tank 1, avoiding the phenomenon of dead zones in mixing, resulting in better mixing effect and stronger practicality. The setting of the stabilizing block 18 and the stabilizing groove 19 can provide auxiliary support for the moving frame 11 and the support block 12, avoiding the problem of damage caused by the first electric telescopic rod 1701 and the second electric telescopic rod 1702 being supported alone, thus improving stability. The setting of the connecting pipe 7, flange 8 and bolt 9 allows all the processing components of the device to be connected in series, and the installation and removal effect of the flange 8 and bolt 9 allows each processing component of the device to be installed and removed individually, facilitating individual replacement and further enhancing practicality.
[0020] Working Principle: In operation, high-concentration wastewater, low-concentration wastewater, and backwash water first converge in the wastewater equalization tank 1. Through retention and mixing, water quality and quantity are homogenized, eliminating shock loads. The equalized wastewater is then pumped into the primary reactor 2, where it works in conjunction with the anaerobic or aerobic system and deep oxidation unit to degrade pollutants. Next, the secondary reactor 3 selectively degrades stubborn pollutants, ensuring stable effluent indicators and adjusting the wastewater pH to provide suitable water quality for subsequent membrane filtration and ozone units. Finally, the tertiary reactor 4 performs deep decolorization and deodorization, improving the sensory quality of the effluent and degrading trace amounts of recalcitrant substances remaining in the primary and secondary reactors 3, ensuring that the final effluent COD and TOC levels are within acceptable limits. The indicators are better than the emission standards. Disinfection and sterilization are performed to inactivate resistant bacteria and viruses in the wastewater, avoiding ecological risks. Finally, through the setting of iron-carbon reactor 5, many recalcitrant organic compounds in the wastewater undergo reduction reactions, breaking their unsaturated bonds and decomposing large organic molecules into smaller ones, improving the biodegradability of the wastewater. Furthermore, during the operation of iron-carbon reactor 5, strong sulfuric acid is added, which dissolves these passivation films, allowing iron to continuously participate in the micro-electrolysis reaction and maintain the reactor's efficient operation. Finally, the wastewater enters the settling tank 6 for sedimentation treatment. The operation of the first electric telescopic rod 1701 drives the entire moving frame 11 to vertically... The stirring shaft 14 moves vertically, and the second electric telescopic rod 1702 moves horizontally, allowing the support block 12, which is slidably connected inside the moving frame 11, to be adjusted. This enables the stirring shaft 14 to be adjusted both vertically and horizontally, allowing it to move in multiple directions within the wastewater regulating tank 1, avoiding dead zones in the mixing process and improving the mixing effect. The motor 13 drives the stirring shaft 14 to rotate, which in turn drives the stirring rod 15 to rotate, thus mixing the wastewater in the wastewater regulating tank 1.
[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A wastewater deep oxidation treatment device, comprising a wastewater comprehensive equalization tank (1), characterized in that: A primary reactor (2) is connected to one side of the wastewater integrated regulating tank (1). A secondary reactor (3) is connected to one side of the primary reactor (2). A tertiary reactor (4) is connected to one side of the secondary reactor (3). An iron-carbon reactor (5) is connected to one side of the tertiary reactor (4). A sedimentation tank (6) is connected to one side of the iron-carbon reactor (5). A bracket (10) is fixed at the top of the wastewater integrated regulating tank (1). A movable frame (11) is provided inside the bracket (10). A support block (12) is provided inside the movable frame (11). A motor (13) is provided at the top of the support block (12). The output end of the motor (13) passes through the bottom end of the support block (12) and is fixed with a stirring shaft (14). Multiple stirring rods (15) are fixed on the outer wall of the stirring shaft (14). A drive structure (17) for driving the stirring shaft (14) to move in multiple directions is provided inside the bracket (10).
2. The wastewater deep oxidation treatment equipment according to claim 1, characterized in that: The drive structure (17) includes a first electric telescopic rod (1701) installed on the inner wall of the bracket (10), the output end of the first electric telescopic rod (1701) is fixed to the movable frame (11), and a second electric telescopic rod (1702) is installed on the inner wall of the movable frame (11), the output end of the second electric telescopic rod (1702) is fixed to the support block (12).
3. The wastewater deep oxidation treatment equipment according to claim 1, characterized in that: The wastewater integrated regulating tank (1), primary reactor (2), secondary reactor (3), tertiary reactor (4), iron-carbon reactor (5) and sedimentation tank (6) are all fixed with connecting pipes (7) at both ends.
4. The wastewater deep oxidation treatment equipment according to claim 1, characterized in that: Both ends of the support block (12) and the movable frame (11) are fixed with stabilizing blocks (18), and both ends of the inner wall of the movable frame (11) and the bracket (10) are provided with stabilizing grooves (19) that match the stabilizing blocks (18).
5. The wastewater deep oxidation treatment equipment according to claim 3, characterized in that: A flange (8) is fixed to the outer wall of one end of the connecting pipe (7), and each pair of opposite flanges (8) are fixed together by bolts (9).
6. The wastewater deep oxidation treatment equipment according to claim 1, characterized in that: The top of the support block (12) is fixed with a fixing frame (16), and the motor (13) is installed on the inner top wall of the fixing frame (16).