A reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment

Abstract

This invention discloses a photomagnetic synergistic enhanced Fenton reaction device for wastewater treatment. The device includes a storage tank, a circulating water pump, a dosing and mixing system, a photomagnetic reaction device, and an online instrumentation device. The input end of the circulating water pump is connected to the output end of the storage tank, and the output end of the circulating water pump is connected to the input end of the dosing and mixing system. The chemical input end of the dosing and mixing system is used to receive Fenton reagent. The input end of the photomagnetic reaction system is connected to the output end of the dosing and mixing system, and the output end of the photomagnetic reaction system is connected to the input end of the online instrumentation device. The output end of the online instrumentation device is connected to the input end of the storage tank. Thus, by combining magnetic enhancement and ultraviolet light enhancement in the Fenton reaction, the amount of external reagent used can be effectively reduced, and the removal efficiency of pollutants can be improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment. Background Technology

[0002] The Fenton reaction is an advanced oxidation process widely used in wastewater treatment, effectively degrading organic pollutants. Traditional Fenton reactions occur primarily under acidic conditions, where ferrous ions react with hydrogen peroxide to generate highly oxidizing hydroxyl radicals. These hydroxyl radicals rapidly decompose pollutants, especially recalcitrant organic compounds.

[0003] However, since the rate of oxidation reaction is affected by the structure of pollutants, some recalcitrant substances will take a long time to react. Therefore, traditional Fenton reactors often require a large volume to ensure the degradation effect. This directly leads to an increase in the design and construction costs of the reactor, especially when treating high concentrations of recalcitrant pollutants, where the investment and operating costs are particularly significant. Moreover, when the concentration of pollutants is very high, a large amount of ferrous iron is required to catalyze hydrogen peroxide, which in turn produces a large amount of iron sludge. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment to solve the problem of high cost caused by the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The first aspect of this utility model provides a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment, the reaction device comprising: a water storage tank, a circulating water pump, a dosing and mixing system, a photomagnetic reaction device, and an online instrumentation device;

[0007] The input end of the circulating water pump is connected to the output end of the water storage tank, and the output end of the circulating water pump is connected to the input end of the dosing and mixing system.

[0008] The drug inlet of the dosing and mixing system is used to receive Fenton's reagent;

[0009] The input end of the photomagnetic reaction device is connected to the output end of the dosing and mixing system, and the output end of the photomagnetic reaction device is connected to the input end of the online instrument device;

[0010] The output of the online instrument is connected to the input of the water storage tank.

[0011] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the reaction device further includes a flocculation sedimentation tank;

[0012] The input end of the flocculation sedimentation tank is connected to the output end of the dosing and mixing system via a pipeline.

[0013] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the dosing and mixing system includes a dosing pipeline and a pipeline mixer;

[0014] The inlet of the dosing line is connected to the outlet of the circulating water pump, the liquid inlet of the dosing line is used to receive Fenton's reagent, and the outlet of the dosing line is connected to the inlet of the pipeline mixer.

[0015] The output end of the pipeline mixer is connected to the input end of the photomagnetic reaction device.

[0016] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the chemical inlet of the dosing pipeline includes a first chemical inlet, a second chemical inlet, and a third chemical inlet;

[0017] The first drug inlet of the dosing pipeline is used to receive sulfuric acid solution;

[0018] The second drug inlet of the dosing pipeline is used to receive iron ion solution;

[0019] The third chemical inlet of the dosing line is used to receive hydrogen peroxide solution.

[0020] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the photomagnetic reaction device includes multiple photomagnetic reaction systems, and each of the photomagnetic reaction systems is connected in parallel.

[0021] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the photomagnetic reaction system includes an ultraviolet lamp, a quartz sleeve, an outer wall of the cavity, and multiple permanent magnets;

[0022] The quartz sleeve encloses the outer wall of the ultraviolet lamp tube;

[0023] The outer wall of the cavity is wrapped with the quartz sleeve to form a sandwich layer, which is used for sewage flow.

[0024] The permanent magnets are arranged on the outer side of the outer wall of the cavity, and each permanent magnet is arranged in a ring around the center line of the ultraviolet lamp to form a magnetic field center.

[0025] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the inner side of the outer wall of the cavity is covered with a photocatalytic material coating.

[0026] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the wavelength range of the ultraviolet light source emitted by the ultraviolet lamp tube is 220 nm to 250 nm.

[0027] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the permanent magnet is made of high-strength neodymium iron boron.

[0028] Optionally, in the above-mentioned photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the online instrumentation device includes a pH meter, an ORP meter, and a thermometer.

[0029] This invention provides a photo-magnetic synergistic enhanced Fenton wastewater treatment reaction device. The device includes a storage tank, a circulating water pump, a dosing and mixing system, a photo-magnetic reaction device, and online instrumentation. The input of the circulating water pump is connected to the output of the storage tank, and the output of the circulating water pump is connected to the input of the dosing and mixing system. The chemical input of the dosing and mixing system receives Fenton reagent. The input of the photo-magnetic reaction system is connected to the output of the dosing and mixing system, and the output of the photo-magnetic reaction system is connected to the input of the online instrumentation device. The output of the online instrumentation device is connected to the input of the storage tank. This device improves reaction efficiency and reduces iron sludge production and reagent usage. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 A first structural schematic diagram of a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment provided in an embodiment of this application;

[0032] Figure 2 A second structural schematic diagram of a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment provided in an embodiment of this application;

[0033] Figure 3 A third structural schematic diagram of a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment provided in an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the structure of a photomagnetic reaction device provided in an embodiment of this application;

[0035] Figure 5This is a fourth structural schematic diagram of a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment provided in an embodiment of this application. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model described in the claims. Additionally, all aspects represented in the embodiments below are not limited to those essential to the solution of the utility model described in the claims.

[0039] As the background technology indicates, the traditional Fenton reaction, under acidic conditions, utilizes ferrous ions to activate hydrogen peroxide, generating hydroxyl radicals that rapidly decompose pollutants. However, the structure of pollutants affects the reaction rate, causing some recalcitrant substances to require longer reaction times. Consequently, traditional reactors are relatively large, increasing design and construction costs, especially when treating high concentrations of recalcitrant pollutants, where investment costs are even more significant.

[0040] Therefore, this utility model embodiment provides a photomagnetic synergistic enhanced Fenton wastewater treatment reaction device. The reaction device includes: a water storage tank, a circulating water pump, a dosing and mixing system, a photomagnetic reaction device, and an online instrument device. By combining magnetic enhancement and ultraviolet light enhancement in the Fenton reaction through the photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, the amount of external reagents used can be effectively reduced and the removal efficiency of pollutants can be improved, thereby effectively degrading pollutants and reducing operating costs.

[0041] Therefore see Figure 1 The diagram shows a first structural schematic of a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment provided in an embodiment of the present invention. The reaction device includes: a water storage tank 1, a circulating water pump 2, a dosing and mixing system 3, a photomagnetic reaction device 4, and an online instrument device 5.

[0042] The input end of the circulating water pump 2 is connected to the output end of the water storage tank 1, and the output end of the circulating water pump 2 is connected to the input end of the dosing and mixing system 3.

[0043] Specifically, in this embodiment of the invention, the wastewater is treated as high-COD (Chemical Oxygen Demand), high-salt, and difficult-to-biodegrade fine chemical wastewater. First, the wastewater is transferred to storage tank 1. Then, it passes through a circulating water pump 2, sequentially through a dosing and mixing system 3, a photomagnetic reaction device 4, and an online instrumentation device 5, before returning to storage tank 1 to form a loop. This loop system effectively reduces the equipment footprint through its circulating flow.

[0044] Among them, the circulating water pump 2 is used to extract sewage from the water storage tank 1.

[0045] The drug inlet of the dosing and mixing system 3 is used to receive Fenton's reagent.

[0046] Understandably, in the dosing and mixing system 3, the wastewater is thoroughly mixed with the added Fenton reagent or other treatment liquids to ensure that the pollutants in the wastewater are evenly distributed and fully mixed with the reagents, thereby improving the efficiency of subsequent treatment.

[0047] The input end of the photomagnetic reaction device 4 is connected to the output end of the dosing and mixing system 3, and the output end of the photomagnetic reaction device 4 is connected to the input end of the online instrument device 5.

[0048] Specifically, the mixed wastewater enters the photomagnetic reactor 4 through pipelines. The photomagnetic reactor 4 has a dual function of photodegradation and magnetic field: ultraviolet light directly degrades organic pollutants, or ultraviolet light excites a photocatalyst to generate active free radicals, promoting the degradation of organic pollutants in the wastewater. Simultaneously, the magnetic field enhances the reaction rate. The photomagnetic reactor 4 is suitable for treating recalcitrant and difficult-to-degrade pollutants, such as wastewater with high COD and high salinity.

[0049] The output of the online instrument device 5 is connected to the input of the water storage tank 1.

[0050] Specifically, after the wastewater circulates through the photomagnetic reaction system 4 2-3 times, the online instrument 5 will monitor various water quality parameters of the wastewater in real time, such as pH value, temperature, and ORP value, to ensure the stability of parameters during the treatment process and to provide timely feedback on the wastewater treatment effect. If the water quality meets the predetermined standard, the instrument will send a signal indicating that subsequent treatment steps can be adjusted.

[0051] Therefore, in some embodiments, the online instrumentation device 5 includes a pH meter, an ORP analyzer, and a thermometer. Specifically, the pH meter is used to measure the acidity or alkalinity of the wastewater, i.e., the pH value of the wastewater. The pH value reflects the concentration of hydrogen ions in the water, which is very important for Fenton reaction treatment and is generally controlled between 2 and 4.

[0052] ORP can help determine the extent of a reaction and whether hydrogen peroxide has been completely consumed.

[0053] The thermometer is used to monitor the temperature of wastewater in real time. Excessive temperature can damage the equipment and cause photocatalyst failure. Since the temperature rise is mainly due to the presence of the light source, when the temperature exceeds 65℃, the light source should be turned off for circulating cooling or an external heat exchanger should be added for further cooling.

[0054] Therefore, the role of online instruments is to ensure that all parameters in the wastewater treatment process are always in optimal operating condition, thereby improving the efficiency and quality of wastewater treatment and reducing energy consumption and the amount of chemical reagents used.

[0055] In some embodiments of the present invention, the water storage tank 1, the circulating water pump 2, the dosing and mixing system 3, the photomagnetic reaction device 4, and the online instrument device 5 are connected in series via pipelines.

[0056] In this embodiment of the invention, the efficiency, stability and automation of wastewater treatment can be improved by using a water storage tank, a circulating water pump, a dosing and mixing system, a photomagnetic reaction device and an online instrument device, while optimizing energy consumption and resource consumption and reducing costs.

[0057] In some embodiments, combined with Figure 1 See Figure 2 The diagram shows a second structural schematic of a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment, wherein the dosing and mixing system 3 includes a dosing pipeline 31 and a pipeline mixer 32.

[0058] The inlet of the dosing line is connected to the outlet of the circulating water pump 2. The inlet of the dosing line is used to receive Fenton's reagent, and the outlet of the dosing line is connected to the inlet of the pipeline mixer.

[0059] The output end of the pipeline mixer is connected to the input end of the photomagnetic reaction device 4.

[0060] In some embodiments, the dosing pipeline includes a first liquid inlet, a second liquid inlet, and a third liquid inlet.

[0061] The first chemical inlet of the dosing line is used to receive sulfuric acid solution.

[0062] The second chemical inlet of the dosing line is used to receive iron ion solution.

[0063] The third chemical inlet of the dosing line is used to receive hydrogen peroxide solution.

[0064] Specifically, the wastewater is thoroughly mixed and reacted with sulfuric acid solution, iron ion solution and hydrogen peroxide solution through a pipeline mixer.

[0065] It should be noted that when wastewater passes through the dosing pipeline, the sulfuric acid solution introduced through dosing pipeline 3 adjusts the pH of the wastewater to 2-3, effectively changing the acidity or alkalinity of the wastewater and providing suitable conditions for more efficient subsequent chemical reactions. The pH of the wastewater is crucial to its treatment effect; adjusting it to this range helps improve the reactivity of the reagents in subsequent reaction processes and creates an ideal environment for subsequent redox reactions, flocculation, and other processes.

[0066] After pH adjustment, based on the COD (Chemical Oxygen Demand) concentration and composition of the wastewater, the estimated dosage of hydrogen peroxide and an iron ion solution (either ferrous or ferric, much smaller than the ferrous iron dosage in a traditional Fenton reaction) are introduced through dosing pipeline 3. Hydrogen peroxide, acting as an oxidant, reacts with organic matter in the wastewater, decomposing harmful substances and reducing COD concentration, thereby reducing pollutants in the wastewater. In a normal Fenton reaction, ferrous iron catalyzes the production of hydroxyl radicals from hydrogen peroxide, transforming itself into ferric iron. However, under ultraviolet light irradiation, ferric iron rapidly converts back to ferrous iron, forming a cycle. Iron ions play a catalytic role in this process, promoting the decomposition of hydrogen peroxide to generate more potent oxidizing radicals, further improving wastewater treatment efficiency.

[0067] Finally, by connecting the output end of the dosing pipeline to the input end of the pipeline mixer, it is ensured that all chemicals and wastewater are thoroughly mixed to form a homogeneous reaction system, avoiding chemical waste and improving reaction efficiency. The pipeline mixer can achieve efficient mixing of wastewater and chemicals in a short time, ensuring that pollutants in the wastewater fully contact the chemicals, enhancing the thoroughness of the reaction.

[0068] In this embodiment of the invention, the pH can be adjusted and hydrogen peroxide and iron ions can be added through the dosing pipeline and pipeline mixer, thereby rapidly removing harmful substances from the wastewater and achieving efficient wastewater purification and resource recovery.

[0069] In some embodiments, combined with Figure 1 and Figure 2 See Figure 3 The diagram shows a third structural schematic of a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment. The photomagnetic reaction device 4 includes multiple photomagnetic reaction systems 40, and each photomagnetic reaction system is connected in parallel.

[0070] Optionally, in the embodiment of the utility model, the photomagnetic reaction device 4 includes 3 photomagnetic reaction systems, or other photomagnetic reaction systems with different number thresholds, which can be set according to the requirements.

[0071] In some embodiments, see Figure 4 The diagram shows a schematic of a photomagnetic reaction system, which includes an ultraviolet lamp 41, a quartz sleeve 42, an outer wall of a cavity 43, and multiple permanent magnets 44.

[0072] The quartz sleeve 42 encloses the outer wall of the ultraviolet lamp tube 41.

[0073] In some embodiments, the wavelength range of the ultraviolet light emitted by the ultraviolet lamp 41 is 220nm to 250nm. Of course, other wavelength ranges can also be used, and the specific wavelength length emitted by the ultraviolet lamp 41 can be selected according to the requirements.

[0074] The outer wall 43 of the cavity is wrapped with a quartz sleeve 42 to form a sandwich layer, which is used for sewage flow.

[0075] Permanent magnets 44 are provided on the outer side of the outer wall 43 of the cavity, and each permanent magnet 44 is arranged in a ring around the center line of the ultraviolet lamp tube 41 to form a magnetic field center.

[0076] In some embodiments, the inner side of the outer wall 43 of the cavity is covered with a photocatalytic material coating, which can generate electron-hole pairs under ultraviolet light irradiation. These electrons and holes can react with organic pollutants in wastewater and decompose them into harmless substances. Therefore, covering with a photocatalytic coating can help improve the treatment capacity of the wastewater treatment plant.

[0077] In some embodiments, the permanent magnet 44 is made of high-strength neodymium iron boron.

[0078] It should be noted that when wastewater passes through the photomagnetic reaction device 4, the photomagnetic reaction system contained in the device 4 activates the ultraviolet lamp 41 to emit ultraviolet light, enabling the deep degradation of organic pollutants in the wastewater through photolysis and catalysis. The ultraviolet lamp 41 can release high-energy electrons, which react with the organic pollutants in the wastewater through photolysis, reducing the concentration of pollutants. Through this process, the organic matter in the wastewater is decomposed into low-molecular-weight substances or completely mineralized into harmless substances, greatly reducing water pollution.

[0079] In addition, the UV lamp 41 can also promote the decomposition of hydrogen peroxide in the Fenton reaction, thereby generating a large number of hydroxyl radicals (·OH). These active free radicals play a key role in the water treatment process, as they can powerfully oxidize organic pollutants and accelerate the purification process of wastewater.

[0080] Furthermore, the synergistic effect of ultraviolet photolysis and the Fenton reaction can effectively improve the generation efficiency of reactive free radicals, thereby enhancing wastewater treatment. Simultaneously, the system, through a special design, can convert ferric ions (Fe3+) in wastewater into ferrous ions (Fe2+), a process that effectively reduces iron ion consumption. Compared to the traditional Fenton reaction, the photocatalytic effect of ultraviolet light can more efficiently reduce ferric ions to ferrous ions, thus improving reaction efficiency and reducing the required amount of iron ions.

[0081] In the design of the outer wall 43 of the cavity, a photocatalytic material coating (such as titanium dioxide) is applied to enhance its catalytic performance under ultraviolet light irradiation, promoting the generation of various active free radicals generated by the ultraviolet light source. This catalytic coating not only improves the utilization efficiency of the ultraviolet light source but also accelerates the photocatalytic degradation of organic pollutants, thereby improving wastewater treatment efficiency. Under ultraviolet light irradiation, photocatalytic materials such as titanium dioxide generate highly oxidizing free radicals, which play a role in wastewater treatment.

[0082] Furthermore, the wastewater flowing through the interlayer formed by the quartz sleeve 42 encased in the outer wall 43 of the cavity further enhances the reaction efficiency between pollutants and free radical molecules under the influence of the magnetic field. The magnetic field generated by each permanent magnet 44 can magnetize pollutants and reactive free radicals in the wastewater. The magnetization effect of the magnetic field significantly increases the collision probability between pollutant molecules and free radical molecules, thereby improving the reaction efficiency. This process fully excites the pollutants in the wastewater, facilitates electrophilic reactions, prolongs the existence time of free radicals, and reduces the consumption of free radicals. This synergistic effect significantly improves the efficiency of the entire reaction system, reduces energy consumption, and reduces dependence on chemical reagents.

[0083] Finally, the wastewater treated by the photomagnetic reaction device 4 will have its reaction status monitored in real time using online instruments. When the OPR (oxidation-reduction potential) value no longer fluctuates significantly, it indicates that the reaction has approached a stable state. At this point, the wastewater can be sampled to determine its chemical oxygen demand (COD). If the COD value does not meet the effluent standard, the reaction device will also add an appropriate amount of hydrogen peroxide through the dosing line 3 to further enhance the reaction and ensure the wastewater treatment effect.

[0084] In some embodiments, combined with Figure 1 , Figure 2 , Figure 3and Figure 4 See Figure 5 The diagram shows a third structural schematic of a reaction device for photomagnetic synergistic enhancement of Fenton wastewater treatment. The reaction device also includes a flocculation sedimentation tank 6.

[0085] The input end of the flocculation sedimentation tank 6 is connected to the output end of the dosing and mixing system 3 via a pipeline.

[0086] Specifically, the input end of the flocculation sedimentation tank 6 is connected to the output end of the pipe mixer in the dosing and mixing system 3 via a pipeline.

[0087] It should be noted that during the wastewater treatment process, once the COD (Chemical Oxygen Demand) level meets the effluent requirements, the wastewater will enter the flocculation sedimentation tank 6 through pipelines for further treatment to remove a small amount of sediment. This process is to ensure the effective removal of residual suspended solids, particulate pollutants, and other fine particles from the wastewater, thereby improving the effluent quality and meeting discharge standards.

[0088] Specifically, the function of flocculation sedimentation tank 6 is to aggregate tiny particles and colloidal substances in wastewater into larger flocs by adding flocculants (such as polyaluminum chloride, polyacrylamide, etc.). The formation of these flocs greatly increases the settling velocity of particles, facilitating subsequent sedimentation and separation processes. Through static sedimentation or slight agitation, solid particles in the flocculation tank quickly settle to the bottom, forming a sediment layer, while clear water forms on the upper layer of the tank and is eventually discharged through the drainage pipe.

[0089] In this embodiment of the invention, most of the suspended particles and tiny sediments in the wastewater are removed through the treatment in the flocculation sedimentation tank, ensuring that the subsequent water treatment process is more efficient and stable, and ultimately meeting the standard requirements for effluent and complying with environmental discharge regulations.

[0090] Therefore, in this embodiment of the invention, the photomagnetic reaction system utilizes the multiple effects of ultraviolet light, photocatalysis, magnetic fields, and chemical reactions to achieve high efficiency in wastewater treatment, enhanced degradation of organic pollutants, increased free radical generation, and reduced iron ion usage. This comprehensive technical solution not only improves water treatment efficiency but also reduces energy consumption and the use of chemical agents, making it a highly efficient and environmentally friendly wastewater treatment method.

[0091] Optionally, combined Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The present invention provides a photomagnetic synergistic enhanced Fenton wastewater treatment reaction device, which includes: a water storage tank 1, a circulating water pump 2, a dosing and mixing system 3, a photomagnetic reaction device 4, an online instrument device 5, and a flocculation sedimentation tank 6.

[0092] The dosing and mixing system 3 includes a dosing pipeline and a pipeline mixer. The liquid inlet of the dosing pipeline includes a first liquid inlet, a second liquid inlet, and a third liquid inlet.

[0093] The input end of the circulating water pump 2 is connected to the output end of the water storage tank 1, the input end of the dosing pipeline is connected to the output end of the circulating water pump 2, the first chemical inlet of the dosing pipeline is used to receive sulfuric acid solution, the second chemical inlet of the dosing pipeline is used to receive iron ion solution, the third chemical inlet of the dosing pipeline is used to receive hydrogen peroxide solution, and the output end of the dosing pipeline is connected to the input end of the pipeline mixer.

[0094] The input end of the photomagnetic reaction device 4 is connected to the output end of the pipeline mixer, and the output end of the photomagnetic reaction device 4 is connected to the input end of the online instrument device 5.

[0095] The output of the online instrument device 5 is connected to the input of the water storage tank 1.

[0096] The water storage tank 1, the circulating water pump 2, the dosing and mixing system 3, the photomagnetic reaction device 4, and the online instrument device 5 are connected in series through pipelines.

[0097] The input end of the flocculation sedimentation tank 6 is connected to the output end of the pipeline mixer via a pipeline.

[0098] This invention provides a photomagnetic synergistic enhanced Fenton wastewater treatment reaction device. The device includes a storage tank, a circulating water pump, a dosing and mixing system, a photomagnetic reaction device, and online instrumentation. The input of the circulating water pump is connected to the output of the storage tank, and the output of the circulating water pump is connected to the input of the dosing and mixing system. The chemical input of the dosing and mixing system receives Fenton reagent. The input of the photomagnetic reaction system is connected to the output of the dosing and mixing system, and the output of the photomagnetic reaction system is connected to the input of the online instrumentation device. The output of the online instrumentation device is connected to the input of the storage tank. This device reduces the production of iron sludge and reagents, thereby effectively lowering operating costs.

[0099] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0100] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0101] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reaction device for photo-magnetic synergistic reinforced Fenton wastewater treatment, characterized in that, The reaction apparatus includes: a water storage tank, a circulating water pump, a dosing and mixing system, a photomagnetic reaction device, and an online instrumentation device; The input end of the circulating water pump is connected to the output end of the water storage tank, and the output end of the circulating water pump is connected to the input end of the dosing and mixing system. The drug inlet of the dosing and mixing system is used to receive Fenton's reagent; The input end of the photomagnetic reaction device is connected to the output end of the dosing and mixing system, and the output end of the photomagnetic reaction device is connected to the input end of the online instrument device; The output of the online instrument is connected to the input of the water storage tank.

2. The reaction apparatus according to claim 1, wherein The reaction apparatus also includes a flocculation sedimentation tank; The input end of the flocculation sedimentation tank is connected to the output end of the dosing and mixing system via a pipeline.

3. The reaction apparatus of claim 1, wherein The dosing and mixing system includes a dosing pipeline and a pipeline mixer; The inlet of the dosing line is connected to the outlet of the circulating water pump, the liquid inlet of the dosing line is used to receive Fenton's reagent, and the outlet of the dosing line is connected to the inlet of the pipeline mixer. The output end of the pipeline mixer is connected to the input end of the photomagnetic reaction device.

4. The reaction apparatus of claim 3, wherein The dosing pipeline includes a first drug inlet, a second drug inlet, and a third drug inlet. The first drug inlet of the dosing pipeline is used to receive sulfuric acid solution; The second drug inlet of the dosing pipeline is used to receive iron ion solution; The third chemical inlet of the dosing line is used to receive hydrogen peroxide solution.

5. The reaction apparatus of claim 1, wherein The photomagnetic reaction device includes multiple photomagnetic reaction systems, and each of the photomagnetic reaction systems is connected in parallel.

6. The reaction apparatus of claim 5, wherein The photomagnetic reaction system includes an ultraviolet lamp, a quartz sleeve, the outer wall of the cavity, and multiple permanent magnets; The quartz sleeve encloses the outer wall of the ultraviolet lamp tube; The outer wall of the cavity is wrapped with the quartz sleeve to form a sandwich layer, which is used for sewage flow. The permanent magnets are arranged on the outer side of the outer wall of the cavity, and each permanent magnet is arranged in a ring around the center line of the ultraviolet lamp to form a magnetic field center.

7. The reaction apparatus of claim 6, wherein The inner side of the outer wall of the cavity is covered with a photocatalytic material coating.

8. The reaction apparatus of claim 6, wherein The wavelength range of the ultraviolet light emitted by the ultraviolet lamp tube is 220 nm to 250 nm.

9. The reaction apparatus of claim 6, wherein The permanent magnet is made of high-strength neodymium iron boron.

10. The reaction apparatus of claim 1, wherein The online instrumentation system includes a pH meter, an ORP analyzer, and a thermometer.

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