A sewage efficient treatment device of a panax notoginseng extraction system
Patent Information
- Application Number
- CN202521837926.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-08-28
AI Technical Summary
三七提取物在提取的工艺过程中，会产生一定的三七提取废水，三七提取废水中含有多种有机物，如多糖、皂苷、黄酮类化合物等，这些物质在提取过程中会溶解于水中，此外，废水中还可能含有无机盐、重金属离子等杂质，这些物质的存在使得三七提取废水具有较高的生物毒性和化学需氧量（COD），对环境具有潜在的危害，所以，在三七提取的过程中，为了避免造成环境污染，需要对三七提取废水进行净化处理，目前，对三七废水采用的净化装置依次连通的预处理单元、生物处理单元和管式微滤膜净化单元，预处理单元包括格栅井、预曝气调节池和微纳米气浮装置，生物处理单元包括预酸化反应池、UASB厌氧处理系统、 A2/O反应池、高密度沉淀池和中间提升水池，上述的预处理单元可以去除废水中的颗粒杂质和胶状物，生化处理单元可以去除废水中的有机污染物，管式微滤膜净化单元主要是对废水进行膜过滤，进一步去除水中的杂质和污染物质，上述的净化处置装置虽然实现了废水的净化处理，但是净化装置只采用生化处理的方式对废水中的有机物进行处理，处理后的废水中有机物浓度高，不能对废水中COD进行高效、彻底的去除，往往会出现COD去除率不理想，不能满足排放标准的情况，或者出现排放的废水无法进入循环使用的问题，严重限制了工业技术的进一步发展
[0005]与现有的技术相比，本装置的优点在于：在生物处理单元和管式微滤膜净化单元内设置了臭氧氧化单元，一是优化了臭氧氧化单元的臭氧氧化池结构，臭氧氧化池内设置了三组臭氧氧化区，废水在三组臭氧氧化区内流动的过程中，臭氧分布器就会在对应的臭氧氧化区内均匀的分布臭氧气体，臭氧气体在对应的臭氧氧化区内与废水进行充分的混合后，就会发生氧化反应，利用臭氧的强氧化性，就可以将废水中难以降解的有机物氧化降解为CO2和H2O，废水在臭氧氧化池内与臭氧气体进行三次的氧化分解后，就能够达到高效去除废水中的有机物目的，可以显著的降低废水中的COD含量；二是本装置设置的精密过滤池可以对进入到管式微滤膜净化单元的废水进行过滤处理，降低氧化分解后水中的杂质含量，提高后续净化单元的过滤效率，精密过滤池与臭氧氧化池的配合使用能够进一步的提高废水处理的效果，提高废水处理的效率，具有结构设计合理、使用效果显著的优点，易于推广使用。
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Figure CN224832411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traditional Chinese medicine production equipment technology, specifically to a wastewater treatment device for a Panax notoginseng extraction system. Background Technology
[0002] Panax notoginseng, also known as Tianqi, is a plant belonging to the Araliaceae family of the order Apiales, mainly distributed in Yunnan, Guangxi, Jiangxi, Sichuan, and other regions. Panax notoginseng extract, due to its rich active ingredients such as ginsenosides Rb1, Rg1, and Rg2, has wide applications in health products and pharmaceuticals. It possesses various effects including promoting blood circulation, stopping bleeding, improving coronary microcirculation, anti-inflammation, anti-fatigue, anti-tumor, analgesia, and immune regulation. The production of Panax notoginseng extract plays a vital role in the pharmaceutical and health product industries. The production process typically involves multiple steps, including crushing, soaking, and extraction. These steps aim to maximize the extraction of active ingredients from the roots while ensuring product quality and safety. The extraction process of Panax notoginseng extract generates wastewater containing various organic compounds such as polysaccharides, saponins, and flavonoids, which dissolve in the water during extraction. In addition, the wastewater may contain impurities such as inorganic salts and heavy metal ions. The presence of these substances makes the wastewater highly toxic and has a high chemical oxygen demand (COD), posing a potential threat to the environment. Therefore, to avoid environmental pollution during the extraction process, the wastewater needs to be purified. Currently, the purification device used for Panax notoginseng wastewater consists of a pretreatment unit, a biological treatment unit, and a tubular microfiltration membrane purification unit connected in sequence. The pretreatment unit includes a bar screen, a pre-aeration regulating tank, and a micro-nano air flotation device. The biological treatment unit includes a pre-acidification reaction tank and a UASB anaerobic treatment system. The pretreatment units, consisting of an A2 / O reaction tank, a high-density sedimentation tank, and an intermediate booster tank, remove particulate impurities and colloidal substances from wastewater. The biochemical treatment unit removes organic pollutants, and the tubular microfiltration membrane purification unit further removes impurities and pollutants through membrane filtration. While these purification devices achieve wastewater treatment, they only treat organic matter through biochemical methods. This results in high organic matter concentrations in the treated wastewater and fails to efficiently and thoroughly remove COD, often leading to unsatisfactory COD removal rates that fail to meet emission standards or prevent the wastewater from being recycled. This severely restricts further industrial technological development. Therefore, it is objectively necessary to develop a high-efficiency wastewater treatment device for Panax notoginseng extraction systems with a reasonable structural design, high treatment efficiency, and high COD removal rate. Summary of the Invention
[0003] The purpose of this utility model is to provide a wastewater treatment device for a Panax notoginseng extraction system that has a reasonable structural design, high treatment efficiency, and high COD removal rate in wastewater.
[0004] The purpose of this utility model is achieved as follows: it includes a pretreatment unit, a biological treatment unit, and a tubular microfiltration membrane purification unit connected in sequence. An ozone oxidation unit is set between the biological treatment unit and the tubular microfiltration membrane purification unit. The ozone oxidation unit includes an ozone oxidation tank, an ozone generator, and a fine filtration tank. The top of the ozone oxidation tank is provided with a cover plate. The interior of the ozone oxidation tank is provided with a first ozone oxidation zone, a second ozone oxidation zone, and a third ozone oxidation zone in sequence. The top covers of the first ozone oxidation zone, the second ozone oxidation zone, and the third ozone oxidation zone are respectively provided with exhaust holes and manholes. The lower part of the first ozone oxidation zone is provided with a water inlet, and the upper part of the third ozone oxidation zone is provided with a water outlet. The water outlet is connected to the fine filtration tank through a connecting pipe. The lower parts of the first ozone oxidation zone, the second ozone oxidation zone, and the third ozone oxidation zone are respectively provided with ozone distributors. The ozone generator is provided with an air inlet main pipe, and the air inlet main pipe is provided with a pressure gauge and a flow meter. The air inlet main pipe is connected to the ozone distributors through air inlet branch pipes.
[0005] Compared with existing technologies, the advantages of this device are as follows: An ozone oxidation unit is incorporated within the biological treatment unit and the tubular microfiltration membrane purification unit. Firstly, the structure of the ozone oxidation tank is optimized. The ozone oxidation tank contains three sets of ozone oxidation zones. As the wastewater flows through these zones, the ozone distributor evenly distributes ozone gas within each zone. After thorough mixing with the wastewater in these zones, an oxidation reaction occurs. Utilizing the strong oxidizing properties of ozone, recalcitrant organic matter in the wastewater can be oxidized and degraded into CO2 and H2O. 2. After the wastewater undergoes three oxidation and decomposition processes with ozone gas in the ozone oxidation tank, the organic matter in the wastewater can be efficiently removed, significantly reducing the COD content. Secondly, the precision filtration tank in this device can filter the wastewater entering the tubular microfiltration membrane purification unit, reducing the impurity content in the water after oxidation and decomposition, and improving the filtration efficiency of subsequent purification units. The combined use of the precision filtration tank and the ozone oxidation tank further enhances the wastewater treatment effect and efficiency. It has the advantages of reasonable structural design, significant performance, and is easy to promote and use. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the ozone oxidation unit 4 in this utility model; Figure 3 This is a schematic diagram of the structure of the precision filter tank 43 in this utility model; In the diagram: 1-Pretreatment unit, 2-Biological treatment unit, 3-Tube microfiltration membrane purification unit, 4-Ozone oxidation unit, 41-Ozone oxidation tank, 411-Cover plate, 412-Exhaust vent, 413-Manhole, 414-Inlet, 415-Outlet, 416-Main air inlet pipe, 417-Branch air inlet pipe, 418-First baffle, 419-Second baffle I, 420-Second baffle II, 421-Third baffle, 422-Upper ring plate, 423-Lower positioning plate, 424-Wire mesh layer, 425-Ozone Catalyst particles, 426-Upper sealing plate, 427-Main distribution pipe, 428-Branch distribution pipe, 42-Ozone generator, 43-Fine filtration tank, 431-Inner filter basket, 432-Inner filter bag, 433-Top cover, 434-Water guide pipe, 435-Connecting elbow, 436-Fixed toothed plate, 437-Modible toothed plate, 438-Limiting plate, 439-Adjusting screw, 440-Lifting pipe, 441-Pressure plate, 442-Spring, 44-Connecting pipe, 45-Venturi mixer, 46-Circulation pipe. Detailed Implementation
[0007] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the teachings of the present invention shall fall within the protection scope of the present invention.
[0008] like Figures 1-3As shown, this utility model includes a pretreatment unit 1, a biological treatment unit 2, and a tubular microfiltration membrane purification unit 3 connected in sequence. The pretreatment unit 1, biological treatment unit 2, and tubular microfiltration membrane purification unit 3 are structures used in the prior art. The pretreatment unit 1 includes a bar screen, a pre-aeration conditioning tank, and a micro / nano air flotation device. The biological treatment unit 2 includes a pre-acidification reaction tank, a UASB anaerobic treatment system, an A2 / O reaction tank, a high-density sedimentation tank, and an intermediate lift tank. An ozone oxidation unit 4 is arranged between the biological treatment unit 2 and the tubular microfiltration membrane purification unit 3. The ozone oxidation unit 4 includes an ozone oxidation tank 41, an ozone generator 42, and a fine filtration tank 43. The ozone generator 42 is a structure used in the prior art and is used to generate ozone gas. A cover plate 411 is provided on the top of the ozone oxidation tank 41. The interior of the ozone oxidation tank 41 is sequentially arranged with a first ozone oxidation zone, a second ozone oxidation zone, and a third ozone oxidation zone. The top cover 411 of the ozone oxidation zone is provided with an exhaust port 412 and a manhole 413 respectively. The lower part of the first ozone oxidation zone is provided with a water inlet 414, and the upper part of the third ozone oxidation zone is provided with a water outlet 415. The water outlet 415 is connected to the fine filtration tank 43 through a connecting pipe 44. The lower parts of the first ozone oxidation zone, the second ozone oxidation zone and the third ozone oxidation zone are respectively provided with ozone distributors. The ozone generator is provided with an air inlet main pipe 416. The air inlet main pipe 416 is provided with a pressure gauge and a flow meter. The air inlet main pipe 416 is connected to the ozone distributor through an air inlet branch pipe 417.
[0009] The working process of this device is as follows: Ozone gas generated by ozone generator 42 continuously enters the main intake pipe 416, and then is transported to each ozone distributor through the intake branch pipe 417, entering the corresponding ozone oxidation zone. Wastewater treated by the biochemical treatment unit first enters the first ozone oxidation zone through inlet 414. The wastewater in the first ozone oxidation zone mixes with the ozone gas and undergoes a first oxidation reaction. The wastewater after the first oxidation reaction enters the second ozone oxidation zone, where it undergoes a second oxidation reaction with the ozone gas. The wastewater after the second oxidation reaction enters the third ozone oxidation zone, where it undergoes a third oxidation reaction with the ozone gas. The wastewater after the third oxidation reaction is discharged through outlet 415. The wastewater passes through the three ozone oxidation zones. During the internal flow process, the ozone distributor evenly distributes ozone gas in the corresponding ozone oxidation zone. After the ozone gas is fully mixed with the wastewater in the corresponding ozone oxidation zone, an oxidation reaction occurs. Utilizing the strong oxidizing properties of ozone, the organic matter in the wastewater that is difficult to degrade can be oxidized and degraded into CO2 and H2O. After the wastewater undergoes three oxidation decompositions with ozone gas in the ozone oxidation tank, the purpose of efficiently removing organic matter from the wastewater can be achieved, which can significantly reduce the COD content in the wastewater. The wastewater discharged from the outlet 415 enters the precision filter tank 43 through the connecting pipe 44. The precision filter tank 43 can filter the wastewater entering the tubular microfiltration membrane purification unit, reduce the impurity content in the water after oxidation and degradation, and improve the wastewater filtration efficiency of the subsequent purification unit.
[0010] Furthermore, to improve the mixing effect of wastewater and ozone gas, the first purification zone includes a first partition 418 and a first ozone oxidation layer. The first partition 418 is vertically installed at the bottom of the ozone purification tank 41, with a gap between the first partition 418 and the top of the ozone purification tank 41. The first ozone oxidation layer is installed between the first partition 418 and the inner wall of the ozone purification tank 41. The second ozone oxidation zone includes a second partition I 419, a second partition II 420, and a second ozone oxidation layer. The second partition I 419 is vertically installed at the top of the ozone purification tank 41 near the side of the first ozone oxidation zone, with a gap between the second partition I 419 and the bottom of the ozone purification tank 41. The second partition II 420 is installed near the side of the ozone purification tank 41. At the bottom of the ozone purification tank 41 on one side of the third ozone oxidation zone, a gap is left between the second baffle II 420 and the top of the ozone purification tank 41. The second ozone oxidation layer is installed between the second baffle I 419, the second baffle II 420 and the inner wall of the ozone purification tank 41. The third purification zone includes a third baffle 421 and a third ozone oxidation layer. The third baffle 421 is vertically installed at the top inside the ozone purification tank 41. There is a flow gap between the third baffle 421 and the bottom of the ozone purification tank 41. The third ozone oxidation layer is installed between the third baffle 421 and the inner wall of the ozone purification tank 41. When oxidizing and degrading wastewater, the wastewater enters the lower part of the first ozone layer and mixes with the ozone gas dispersed by the ozone distributor for the first time. After the initial mixing with ozone gas, the wastewater flows upward into the first ozone oxidation layer. Under the catalytic action of the first ozone oxidation layer, the wastewater undergoes its first oxidation and decomposition. The decomposed wastewater then flows upward through the upper part of the first partition 418 into the space between the first partition 418 and the second partition 419, continuing to flow downward into the lower part of the second ozone oxidation layer where it undergoes a second mixing with the ozone gas dispersed by the ozone distributor. After this second mixing, the wastewater flows upward into the second ozone oxidation layer, where it undergoes a second oxidation and decomposition. After this second oxidation and decomposition, the wastewater flows upward through… The wastewater overflows from the upper part of the second partition II 420 into the space between the second partition II 420 and the second partition 421. The wastewater continues to flow downwards into the lower part of the third ozone oxidation layer and mixes for the third time with the ozone gas dispersed by the ozone distributor. After the third mixing with the ozone gas, the wastewater flows upwards into the third ozone oxidation layer. Under the catalytic action of the third ozone oxidation layer, the wastewater can undergo a third oxidation and decomposition. The wastewater after the third oxidation and decomposition flows upwards and is discharged from the outlet 415. The wastewater flows in a baffled manner in the first ozone oxidation zone, the second ozone oxidation zone and the second ozone oxidation zone, which can prolong the contact time of ozone gas, improve the mixing effect and further improve the oxidation and degradation effect of wastewater.
[0011] Furthermore, to improve the wastewater oxidation and degradation effect, the first, second, and third ozone oxidation layers have the same structure, each including an upper ring plate 422 and a lower positioning plate 423 spaced apart vertically. The lower positioning plate 423 has multiple lower connecting holes evenly distributed on it. A wire mesh layer 424 is provided on the upper surface of the lower positioning plate 423 to prevent ozone catalyst particles from leaking out of the lower connecting holes of the lower positioning plate 423. The upper ring plate 422 has multiple upper connecting holes evenly distributed on it. Ozone catalyst particles 425 are filled between the upper ring plate 422 and the wire mesh layer 424. The ozone catalyst particles 425 are pre-made products used in the prior art and can be selected according to the application. The requirement is to directly purchase finished products. To facilitate the replacement of ozone catalyst particles 425, an upper sealing plate 426 is detachably installed above the center of the upper ring plate 422. By removing the upper sealing plate 426 and entering through the manhole 413, the ozone catalyst particles 425 can be replaced. Multiple flow holes are evenly distributed on the upper sealing plate 426. The upper ring plate 422, lower positioning plate 423, upper sealing plate 426, and wire mesh layer 424 are all made of stainless steel. When wastewater passes through the ozone catalyst particles 425, hydroxyl radicals are generated under the catalytic action of the ozone catalyst particles 425. The hydroxyl radicals react quickly with organic matter in the wastewater to remove it. When used in conjunction with ozone gas, the wastewater purification effect is better.
[0012] Depending on the usage requirements and the COD content in the wastewater, the number of second ozone zones can be reasonably arranged, ranging from 1 to 3.
[0013] Furthermore, to improve the mixing efficiency of ozone gas and wastewater, a Venturi mixer 45 is installed on the main air intake pipe 416, and a circulation pipe 46 is installed on the connecting pipe 44. A circulation pump and a valve are sequentially installed on the circulation pipe 46. The circulation pipe 46 is connected to the Venturi mixer 45. The principle of the Venturi mixer 45 is based on existing technology. In use, the valve is opened, and the wastewater after ozone oxidation and decomposition enters the Venturi mixer 45 under the action of the circulation pump. It is fully mixed with the ozone gas sent in by the main air intake pipe 416 before entering the ozone distributor. The purpose of the Venturi mixer 45 is to adjust the ozone concentration in the ozone-containing water and the amount of ozone entering each ozone oxidation zone, so that the ozone flow rate is adapted to the pollutant concentration in the wastewater in each ozone oxidation zone, preventing the problems of low ozone utilization and poor treatment effect caused by excessive or insufficient ozone.
[0014] Furthermore, in order to achieve uniform distribution of ozone gas and ensure that the ozone gas entering each ozone oxidation zone is evenly distributed, the ozone distributor includes a main distribution pipe 427 and distribution branch pipes 428. The two ends of the main distribution pipe 427 are sealed, and one end of the distribution branch pipe 428 is connected to the main distribution pipe 427 while the other end is sealed. The bottom of the distribution branch pipe 428 is provided with multiple distribution holes at equal intervals. The number of distribution branch pipes 428 can be determined according to the actual situation. The distribution branch pipes 428 are arranged at equal intervals along the axial direction of the main distribution pipe 427. Furthermore, an inner filter basket 431 is fixedly installed inside the fine filtration tank 43. An inner filter bag 431 is detachably installed inside the inner filter basket 431. The inner filter basket 431 has a flanged structure and is made of stainless steel, providing a certain degree of support. The inner filter bag 431 is made of flexible nylon, polypropylene, or other materials. A top cover 433 is movably installed on the top of the fine filtration tank 43. Multiple sets of clamping components that come into contact with the inner filter bags are evenly distributed on the top cover 433, facilitating the replacement or cleaning of the inner filter bags 432. A water guide pipe 434 is installed throughout the filter. The water guide pipe 434 is connected to a transition elbow 435 through a first flange assembly. The transition elbow 435 is connected to a connecting pipe 44 through a second flange assembly. An outlet 415 is provided at the top of the fine filtration tank 43. Wastewater discharged from the ozone oxidation tank 41 enters the water guide pipe 434 through the connecting pipe 44, and then enters the inner filter bag 432 through the water guide pipe 434. The inner filter bag 432 can filter impurities in the wastewater. The filtered wastewater enters the bottom of the fine filtration tank 43 through the inner filter basket 431, and then is discharged through the outlet 415.Preferably, to facilitate the installation or removal of the inner filter bag 431, the clamping assembly includes a fixed toothed plate 436, a movable toothed plate 437, a limiting plate 438, and an adjusting screw 439. The fixed toothed plate 436 is installed on the top edge of the inner filter basket 431, and the limiting plate 438 is installed on the fine filtration tank 43 above the inner filter bag 432. A lifting tube 440 is slidably installed on the limiting plate 438, and the movable toothed plate 437 is installed at the lower end of the lifting tube 440. The teeth on the movable toothed plate 437... The teeth on the fixed toothed plate 436 all face the edge of the inner filter bag 432. A pressure plate 441 is installed at the upper end of the lifting pipe 440. A spring 442 is installed between the limiting plate 429 and the pressure plate 441 inside the lifting pipe 440. The adjusting stud 439 is threaded onto the top cover 433. The lower end of the adjusting stud 439 slides in contact with the pressure plate 441. An adjusting knob is installed at the upper end of the adjusting stud 439. When it is necessary to disassemble the filter bag 431, stop the water supply to the fine filtration tank 43 and turn the knob... Disassemble the first and second flange assemblies at both ends of the elbow 435. Then, control the adjusting screw 439 to move upward by adjusting the knob. As the adjusting screw 439 moves upward, it disengages from the pressure plate 441, and the spring 442 extends, causing the lifting tube 440 and the movable toothed plate 437 to move upward, disengaging from the limit on the inner filter bag 432. Next, open the top cover 433 and enter the interior of the precision filter tank 41. The inner filter bag 432 can then be removed from the inner filter basket 432. After the inner filter bag 432 has been cleaned, it needs to be placed... When the inner filter basket 432 is in place, cover the top cover 433, and use the adjustment knob to drive the adjustment screw 439 to move down. When the adjustment screw 439 moves down and touches the pressure plate 441, the spring 442 is compressed, the lifting tube 440 and the movable toothed plate 437 move down, and the movable toothed plate 437 moves down and contacts the inner filter bag 432, thus positioning the inner filter bag 432 between the fixed toothed plate 436 and the movable toothed plate 437. Then, assemble the steering elbow 435, the first flange assembly and the second flange assembly. The operation is relatively simple and convenient.
Claims
1. A high-efficiency wastewater treatment device for a Panax notoginseng extraction system, comprising a pretreatment unit (1), a biological treatment unit (2), and a tubular microfiltration membrane purification unit (3) connected in sequence, characterized in that: An ozone oxidation unit (4) is provided between the biological treatment unit (2) and the tubular microfiltration membrane purification unit (3). The ozone oxidation unit (4) includes an ozone oxidation tank (41), an ozone generator (42), and a fine filtration tank (43). The top of the ozone oxidation tank (41) is provided with a cover plate (411). The interior of the ozone oxidation tank (41) is provided with a first ozone oxidation zone, a second ozone oxidation zone, and a third ozone oxidation zone in sequence. The top covers (411) of the first ozone oxidation zone, the second ozone oxidation zone, and the third ozone oxidation zone are respectively provided with exhaust holes (412) and manhole covers (411). The first ozone oxidation zone has an inlet (414) at the bottom and an outlet (415) at the top. The outlet (415) is connected to the fine filter tank (43) through a connecting pipe (44). The first ozone oxidation zone, the second ozone oxidation zone and the third ozone oxidation zone are respectively provided with ozone distributors at the bottom. The ozone generator is provided with an air inlet main pipe (416). The air inlet main pipe (416) is provided with a pressure gauge and a flow meter. The air inlet main pipe (416) is connected to the ozone distributor through an air inlet branch pipe (417).
2. The wastewater treatment device for a Panax notoginseng extraction system according to claim 1, characterized in that: The first purification zone includes a first partition (418) and a first ozone oxidation layer. The first partition (418) is vertically installed at the bottom of the ozone purification tank (41), with a gap between the first partition (418) and the top of the ozone purification tank (41). The first ozone oxidation layer is installed between the first partition (418) and the inner wall of the ozone purification tank (41). The second ozone oxidation zone includes a second partition I (419), a second partition II (420), and a second ozone oxidation layer. The second partition I (419) is vertically installed at the top of the ozone purification tank (41) near the first ozone oxidation zone, with a gap between the second partition I (419) and the bottom of the ozone purification tank (41). Plate II (420) is installed at the bottom of the ozone purification tank (41) near the side of the third ozone oxidation zone. A gap is left between the second partition plate II (420) and the top of the ozone purification tank (41). The second ozone oxidation layer is installed between the second partition plate I (419), the second partition plate II (420) and the inner wall of the ozone purification tank (41). The third purification zone includes the third partition plate (421) and the third ozone oxidation layer. The third partition plate (421) is vertically installed at the top of the ozone purification tank (41). There is a flow gap between the third partition plate (421) and the bottom of the ozone purification tank (41). The third ozone oxidation layer is installed between the third partition plate (421) and the inner wall of the ozone purification tank (41).
3. The wastewater treatment device for a Panax notoginseng extraction system according to claim 2, characterized in that: The first, second, and third ozone oxidation layers have the same structure, each including an upper ring plate (422) and a lower positioning plate (423) spaced apart vertically. The lower positioning plate (423) has a plurality of lower connecting holes evenly distributed on it. A wire mesh layer (424) is provided on the upper surface of the lower positioning plate (423). The upper ring plate (422) has a plurality of upper connecting holes evenly distributed on it. Ozone catalyst particles (425) are filled between the upper ring plate (422) and the wire mesh layer (424). An upper sealing plate (426) is detachably installed above the center of the upper ring plate (422). The upper sealing plate (426) has a plurality of flow holes evenly distributed on it.
4. The wastewater treatment device for a Panax notoginseng extraction system according to claim 2, characterized in that: The number of the second ozone zone can be set to 1 to 3.
5. The wastewater treatment device for a Panax notoginseng extraction system according to claim 1, characterized in that: The intake manifold (416) is equipped with a Venturi mixer (45), the connecting pipe (44) is equipped with a circulation pipe (46), the circulation pipe (46) is equipped with a circulation pump and a valve in sequence, and the circulation pipe (46) is connected to the Venturi mixer (45).
6. The wastewater treatment device for a Panax notoginseng extraction system according to claim 1, characterized in that: The ozone distributor includes a main distribution pipe (427) and a branch distribution pipe (428). The two ends of the main distribution pipe (427) are sealed. One end of the branch distribution pipe (428) is connected to the main distribution pipe (427) and the other end is sealed. The bottom of the branch distribution pipe (428) is provided with multiple distribution holes at equal intervals.
7. The wastewater high-efficiency treatment device for a Panax notoginseng extraction system according to claim 1, characterized in that: An inner filter basket (431) is fixedly installed inside the fine filtration tank (43). An inner filter bag (431) is detachably installed inside the inner filter basket (431). A top cover (433) is movably installed on the top of the fine filtration tank (43). Multiple sets of clamping components that are in contact with the inner filter bag are evenly distributed on the top cover (433). A water guide pipe (434) is installed through the top cover (433). The water guide pipe (434) is connected to a transition elbow (435) through a first flange assembly. The transition elbow (435) is connected to a connecting pipe (44) through a second flange assembly. An outlet (415) is provided on the top of the fine filtration tank (43).
8. The wastewater treatment device for a Panax notoginseng extraction system according to claim 1, characterized in that: The clamping assembly includes a fixed toothed plate (436), a movable toothed plate (437), a limiting plate (438), and an adjusting screw (439). The fixed toothed plate (436) is installed on the top edge of the inner filter basket (431), and the limiting plate (438) is installed on the fine filter tank (43) above the inner filter bag (432). A lifting tube (440) is slidably installed on the limiting plate (438), and the movable toothed plate (437) is installed at the lower end of the lifting tube (440). The teeth on the filter bag (432) and the teeth on the fixed tooth plate (436) are both facing the edge of the inner filter bag (432). A pressing plate (441) is installed at the upper end of the lifting tube (440). A spring (442) is installed between the limiting plate (429) and the pressing plate (441) inside the lifting tube (440). The adjusting stud (439) is threaded on the top cover (433). The lower end of the adjusting stud (439) slides in contact with the pressing plate (441). An adjusting knob is installed at the upper end of the adjusting stud (439).