Water body hydrophilic organic matter treatment system and treatment method

Abstract

The invention provides a water body hydrophilic organic matter treatment system and method, the treatment system comprises a hydrophobic organic matter removal device, a resin separation assembly is arranged in the hydrophobic organic matter removal device, and after hydrophobic organic matter in inlet water is subjected to adsorption treatment through the resin separation assembly, the hydrophobic organic matter in the inlet water is separated from the resin separation assembly; effluent mainly containing hydrophilic organic matters is formed; the photocatalytic reactor is provided with a light source, the photocatalytic reactor is filled with a photocatalyst, and the hydrophilic organic matter in the effluent is subjected to photocatalytic treatment; a deep purification device is further arranged and located on the downstream of the photocatalytic reactor, and an adsorption material area of the deep purification device is filled with an adsorption material. According to the method, resin separation, photocatalytic reaction and deep purification are matched, and efficient treatment of algae-derived organic matters is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of water environment treatment equipment, and in particular relates to a system and method for treating hydrophilic organic matter in water. Background Art

[0002] Algae-derived organic matter, also known as algae-derived-dissolved organic matter (A-DOM), is a large amount of dissolved organic matter produced during algal blooms. A-DOM affects the environmental behavior of pollutants in water bodies. Large amounts of A-DOM also rapidly consume dissolved oxygen in the water, affecting algae metabolism and causing it to produce odorous substances. Therefore, the A-DOM produced during algal blooms can adversely affect water safety. With the continued occurrence of algal blooms, the water quality and ecological safety issues caused by A-DOM are becoming increasingly prominent. In addition to algae, fulvic acid-type dissolved organic matter in water bodies usually accumulates in large quantities due to its strong anti-biodegradation properties. Studies have confirmed that the COD of most lakes at home and abroad has shown an increasing trend over the years. After the nitrogen and phosphorus in the water bodies are effectively controlled, the large-scale enrichment of difficult-to-degrade dissolved organic matter in the water bodies has become a technical bottleneck restricting the improvement of water quality. In order to reduce the harm caused by this problem, it is necessary to effectively remove the algae-derived organic matter affected by eutrophication or the anti-biodegradable fulvic acid and fulvic acid-type dissolved organic matter in the water bodies.

[0003] The primary approach for treating dissolved organic matter in water using existing technologies is photochemical degradation. While some dissolved organic matter in water is also biodegradable, photochemical degradation offers a higher degradation rate than microbial degradation. However, existing technologies for treating dissolved organic matter in water are still limited to the laboratory stage. Compared to laboratory simulations, the treatment of algal organic matter in natural waters presents several challenges: Firstly, photocatalytic oxidation for treating dissolved organic matter in water requires a long catalytic treatment time and has limited efficiency, making it difficult to rapidly improve water quality. Secondly, the large volume of water to be treated places higher demands on the device's treatment rate and throughput. Directly applying photochemical degradation to water bodies does not achieve the desired removal efficiency for algal organic matter. Furthermore, to prevent losses due to device failure, timely verification of the device's effectiveness during long-term, large-volume sample processing is a significant challenge in practical applications. Summary of the Invention

[0004] The present invention solves the problem that the treatment efficiency of dissolved organic matter in water bodies in the existing technology is low, which is difficult to meet the requirements of quickly improving water quality, and there is a lack of effective devices for treating hydrophilic organic matter and anti-biodegradable fulvic acid organic matter in water bodies. It further provides a water body hydrophilic organic matter treatment system that is suitable for treating dissolved organic matter in water bodies, has high treatment efficiency, can be operated automatically, and can verify the effectiveness of the device in real time. The present invention also provides a hydrophilic organic matter treatment method based on the hydrophilic organic matter treatment system.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A system for treating hydrophilic organic matter in water bodies comprises: a hydrophobic organic matter removal device, wherein a resin separation component is arranged in the hydrophobic organic matter removal device, and the hydrophobic organic matter in the influent is adsorbed and treated by the resin separation component to form effluent mainly containing hydrophilic organic matter; a photocatalytic reactor, which is provided with a light source and filled with a photocatalyst to photocatalytically treat the hydrophilic organic matter in the effluent.

[0007] A deep purification device is further provided downstream of the photocatalytic reactor. An adsorption material area is provided in the deep purification device, and the adsorption material area is filled with adsorption material.

[0008] The resin separation component adopts XAD series non-polar macroporous adsorption resin.

[0009] In the hydrophobic organic matter removal device, a filtering component is provided upstream of the resin separation component; the filtering component adopts a microporous membrane filtering component.

[0010] The photocatalyst is at least one of BiPO4 and TiO2 modified composite materials; the light source is a low-pressure ultraviolet lamp, and the wavelength of the light source is 254nm.

[0011] The photocatalyst adopts a BiPO4 modified composite material, and the preparation method of the BiPO4 modified composite material is as follows:

[0012] S1: 0.485 parts by weight of Bi(NO3)3·5H2O and 0.49 parts by weight of KH2PO4 were mixed and dissolved, and then kept at a constant temperature of 150°C-170°C for 10-14 hours; after natural cooling to room temperature, the precipitate was removed, washed, dried, and ground to obtain bismuth phosphate nanorods;

[0013] S2: 2.908 parts by weight of Ni(NO3)·6H2O were dissolved in deionized water to prepare a nickel nitrate solution; 0.485 parts by weight of Bi(NO3)3·5H2O and 0.49 parts by weight of KH2PO4 were mixed and dissolved evenly in water, and the nickel nitrate solution was added dropwise. After stirring, the mixture was kept at a constant temperature of 150°C-170°C for 10-14 hours, and then naturally cooled to room temperature. The precipitate was removed, washed, dried, and ground to obtain 1% nickel ion-modified bismuth phosphate.

[0014] The photocatalytic reactor adopts a quartz cylindrical body, one end of the quartz cylindrical body is provided with a water inlet, and the other end is provided with a water outlet; a quartz filter sleeve is provided in the quartz cylindrical body, and the quartz filter sleeve is filled with photocatalytic microspheres.

[0015] The adsorption material is a sediment modified material.

[0016] Ultraviolet-fluorescence signal sensors are respectively provided upstream and downstream of the photocatalytic reaction zone, and downstream of the deep processing zone; a control system is also provided, the control system is respectively connected to each of the ultraviolet-fluorescence signal sensors, receives signals from each ultraviolet-fluorescence signal sensor and makes judgments:

[0017] When the difference between the detection value Z1 of the ultraviolet-fluorescence signal sensor upstream of the photocatalytic reaction zone and the detection value Z2 of the ultraviolet-fluorescence signal sensor downstream of the photocatalytic reaction zone is less than a first set value, the photocatalytic reaction zone is determined to be invalid; when the difference is greater than or equal to the first set value, the photocatalytic reaction zone is determined to be valid;

[0018] When the difference between the detection value Z2 of the ultraviolet-fluorescence signal sensor downstream of the photocatalytic reaction zone and the detection value Z3 of the ultraviolet-fluorescence signal sensor downstream of the deep processing zone is less than a second set value, the adsorption material zone is judged to be invalid; when the difference is greater than or equal to the second set value, the adsorption material zone is judged to be valid.

[0019] The water body hydrophilic organic matter treatment system is also provided with an alarm device, which is connected to the control system. When the control system determines that any one of the photocatalytic reaction area and the adsorption material area fails, the alarm device is activated to sound an alarm.

[0020] A method for treating hydrophilic organic matter in water comprises the following steps: (1) subjecting water taken from a eutrophic water body to resin separation treatment to remove hydrophobic organic matter in the water, thereby forming effluent mainly containing hydrophilic organic matter; (2) subjecting the effluent after the resin separation treatment to photocatalytic treatment to remove the hydrophilic organic matter in the water; and (3) further subjecting the effluent of step (2) to adsorption treatment using an adsorption material to further remove inorganic nitrogen and phosphorus, thereby achieving deep purification of the eutrophic water body.

[0021] In step (1), the water in the water body is first subjected to microporous filtration treatment before the resin separation treatment.

[0022] The system and method for treating hydrophilic organic matter in water bodies of the present invention have the following advantages:

[0023] (1) After the hydrophilic organic matter treatment system of the present invention is started, the resin separation component in the hydrophobic organic matter removal device processes the incoming water from water bodies such as lakes, rivers or reservoirs, and separates out the effluent mainly containing hydrophilic organic matter. The effluent enters the photocatalytic reactor for further treatment, so that the algae-derived hydrophilic organic matter in the water body undergoes photocatalytic degradation, which can greatly improve the removal efficiency of soluble organic matter and shorten the photocatalytic degradation time. The present application can quickly improve the water quality of the water body by quickly and efficiently removing hydrophilic organic matter. The water after photocatalytic degradation treatment enters the deep purification device. Under the action of the adsorption material, the water flow makes the water body reach the specified standard, and then it is transported to the water body, thereby completing the treatment of hydrophilic organic matter. In the prior art, it is difficult to achieve efficient hydrophilic organic matter treatment efficiency by directly treating the water body. The present invention achieves efficient treatment of hydrophilic organic matter by combining resin separation, photocatalytic degradation and deep purification device.

[0024] (2) The hydrophilic organic matter treatment system of the present invention monitors the spectral characteristics of organic matter in the water flow once a minute through three ultraviolet-fluorescent signal sensors and transmits them to the terminal system in real time. The terminal system calculates and compares the difference between the two ultraviolet-fluorescent signal sensors. If Z1-Z2 is less than the set value, it means that the catalyst in the photocatalytic reaction zone will fail, and the system issues a warning to remind you to replace the catalyst; if Z2-Z3 is less than or equal to the set value, it means that the adsorption material in the adsorption material zone has poor performance, and the system issues a warning to remind you to replace the adsorption material; if Z1-Z2 and Z2-Z3 are greater than or equal to the set value, it means that the device is operating well. The present invention can verify the effectiveness of the device in real time during the long-term and large-scale sample processing of the device, avoiding losses caused by failure of the processing device.

[0025] In order to make the technical solutions of the hydrophilic organic matter treatment system and method for water bodies described in the present invention more clear, the present invention is further described in detail below with reference to specific drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the system for treating hydrophilic organic matter in water according to the present invention;

[0027] The accompanying drawings are marked as follows:

[0028] 1-water inlet; 2-hydrophobic organic matter removal device; 3-microporous filtration assembly; 4-resin separation assembly; 5-photocatalytic reactor; 6-ultraviolet-fluorescence signal sensor upstream of the photocatalytic reactor; 7-ultraviolet-fluorescence signal sensor downstream of the photocatalytic reactor; 8-body of the photocatalytic reactor; 9-quartz filter sleeve; 10-light source; 12-water guide elbow; 13-deep purification device; 14-adsorption material area; 15-third peristaltic pump; 16-water quality analyzer; 17-first peristaltic pump; 18-second peristaltic pump DETAILED DESCRIPTION

[0029] This embodiment provides a system for treating hydrophilic organic matter in water. Figure 1 As shown, the system includes a hydrophobic organic matter removal device 2 and a photocatalytic reactor 5 which are arranged in sequence. As a preferred embodiment, the water body hydrophilic organic matter treatment system in this embodiment is further provided with a deep purification device 13.

[0030] A removable resin separation assembly 4 is provided within the hydrophobic organic matter removal device 2. In this embodiment, the resin separation assembly 4 utilizes XAD-8 resin. As a preferred embodiment, a microporous filtration assembly 3 is also provided upstream of the resin separation assembly 4. The influent 1 is first filtered through the microporous filtration assembly 3 and then processed by the resin separation assembly 4. Organic matter in the influent 1 is separated by the resin, resulting in effluent primarily containing hydrophilic organic matter.

[0031] The photocatalytic reactor 5 adopts a transparent cylinder. In this embodiment, the photocatalytic reactor 5 adopts a quartz cylindrical cylinder. One end of the cylinder 8 of the photocatalytic reactor is provided with a water inlet, and the other end is provided with a water outlet; a quartz filter sleeve 9 is provided in the cylinder 8, and the quartz filter sleeve 9 is filled with photocatalytic microspheres to form a photocatalytic reaction zone in the quartz filter sleeve 9, and a first peristaltic pump 17 is provided downstream of the photocatalytic reaction zone.

[0032] The photocatalytic microspheres in this embodiment are modified BiPO4 photocatalytic microspheres, and the preparation method of the modified BiPO4 photocatalytic microspheres is as follows:

[0033] First, weigh 0.485gBi(NO3)3·5H2O and 0.490gKH2PO4 in a beaker, add 40ml water, stir for 60 minutes, transfer the mixture to a hydrothermal reactor, keep the temperature at 160℃ for 12 hours, cool naturally to room temperature, transfer the precipitate to a centrifuge tube and centrifuge, wash with deionized water three times, and then dry at 85℃ under normal pressure for 24 hours. The collected white solid is fully ground to obtain bismuth phosphate nanorods.

[0034] To prepare a 1% nickel-ion-modified bismuth phosphate material, first weigh 2.908g of Ni(NO3)·6H2O and dissolve it in 1L of deionized water to prepare a nickel nitrate solution. Then weigh 0.485g of Bi(NO3)3·5H2O and 0.490g of KH2PO4 in a beaker, add 34.82ml of water, and stir for 30 minutes. Then, dropwise add 5.18ml of the nickel nitrate solution and continue stirring for 30 minutes. The mixture is transferred to a hydrothermal reactor and incubated at 160°C for 12 hours. After cooling naturally to room temperature, the precipitate is transferred to a centrifuge tube and centrifuged. The precipitate is washed three times with deionized water and then dried at 85°C under normal pressure for 24 hours. The collected white solid is thoroughly ground to obtain 1% nickel-ion-modified bismuth phosphate (1% Ni-BiPO4).

[0035] The photocatalytic reactor 5 is provided with a light source 10, which is located outside the cylinder and is used to irradiate the photocatalytic reaction zone of the cylinder. The light source is preferably a low-pressure ultraviolet lamp with a power of 28W and a wavelength of 254nm.

[0036] The deep purification device 13 is located downstream of the photocatalytic reactor 5 and is configured as a rectangular box. The deep purification device 13 is provided with an adsorption material area 14, which is located at the bottom of the rectangular box. As a preferred embodiment, a submerged plant area can be further provided in the rectangular box, which is located above the adsorption material area 14. The adsorption material area 14 contains an adsorption material, which is a sediment modification material. The sediment modification material is a material described in Chinese patent document CN113952934B and is prepared by the following method: (1) grinding the air-dried sediment with a grinder and passing it through a 100-mesh sieve to obtain sediment powder; (2) mixing the sediment powder prepared in step (1) with natural zeolite powder in a mass ratio of 3:7, and stirring to obtain a uniform mixture, wherein the amount of the natural zeolite powder added accounts for 70wt% of the mixture by mass. Then, a polymerized alumina solid powder is added to the mixture, and distilled water is added and stirred to form a paste, wherein the amount of the polymerized alumina solid powder added accounts for 1 wt% of the mixture by mass. (3) The paste is formed into granules having a particle size range of 0.5-1 cm, dried, and then calcined at 400° C. for 3 h. (4) The calcined product is subjected to a modification treatment, wherein the modification treatment method comprises: freeze-drying sediment taken from a water body, mixing the freeze-dried sediment with distilled water to form a mixed solution, wherein the mass percentage of the sediment in the mixed solution is 10 wt%; placing the mixed solution in a constant temperature oscillating box and oscillating it for 16 h at a rotation speed of 200 r / min; and then filtering it through a 0.45 μm microporous filter membrane to obtain an organic solution; and treating the organic solution with XAD-8 resin to obtain a hydrophilic organic solution. The total organic carbon concentration in the hydrophilic organic solution is 42 mg / L; the roasted product is placed in the hydrophilic organic solution and soaked for 24 hours. After the modification treatment is completed, the roasted product is taken out to prepare the sediment modified material. The sediment modified material is laid with a thickness of 30 cm.

[0037] As a preferred embodiment, in order to be able to determine the effectiveness of each treatment zone in real time, ultraviolet-fluorescence signal sensors are respectively installed upstream and downstream of the photocatalytic reaction zone, and downstream of the deep treatment zone. The ultraviolet-fluorescence signal sensor 7 downstream of the photocatalytic reaction zone is installed in the water guide bend 12 between the photocatalytic reactor 5 and the deep purification device 13. A second peristaltic pump 18 is also provided in the water guide bend 12. As a preferred embodiment, a water quality analyzer 16 is also provided downstream of the deep treatment zone. At the same time, a control system is also provided, which is connected to each of the ultraviolet-fluorescence signal sensors and the water quality analyzer 16, respectively, receives signals from each ultraviolet-fluorescence signal sensor and makes judgments: when the difference between the detection value Z1 of the ultraviolet-fluorescence signal sensor 6 upstream of the photocatalytic reaction zone and the detection value Z2 of the ultraviolet-fluorescence signal sensor 7 downstream of the photocatalytic reaction zone is less than a first set value, the photocatalytic reaction zone is judged to be invalid; when the difference is greater than or equal to the first set value, the photocatalytic reaction zone is judged to be valid; when the difference between the detection value Z2 of the ultraviolet-fluorescence signal sensor 7 downstream of the photocatalytic reaction zone and the detection value Z3 of the ultraviolet-fluorescence signal sensor (not shown in the figure) downstream of the deep treatment zone is less than a second set value, the adsorption material zone 14 is judged to be invalid; when the difference is greater than or equal to the second set value, the adsorption material zone 14 is judged to be valid.

[0038] This embodiment also includes an alarm device connected to the control system. When the control system determines that any of the photocatalytic reaction zone or the adsorption material zone 14 has failed, the alarm device is activated to issue an alarm. The alarm device is an alarm that can emit sound or light signals to issue a warning signal.

[0039] As a preferred embodiment, the water outlet of the deep purification device 13 of the present invention is provided with a third peristaltic pump 15. When the control system simultaneously determines that the adsorption material zone 14 and the submerged plant zone are effective, the third peristaltic pump 15 is controlled to be in an on state. When any of the photocatalytic reaction zone, the adsorption material zone 14, or the submerged plant zone fails, or when the water quality test result of the water quality analyzer 16 does not meet the standard, the control system controls the third peristaltic pump 15 to be in an off state to prevent the outflow of untreated water.

[0040] Comparative experimental example

[0041] Experimental example

[0042] The influent was treated using the hydrophilic organic matter treatment system of the above embodiment. The influent of this experiment was taken from a eutrophic water body. The specific sampling method was as follows: after taking water from the cyanobacteria gathering area of ​​the water body, the algae-water separation was achieved through filtration, and the obtained aqueous solution rich in algae-derived organic matter was used as influent.

[0043] The method for treating influent water using the hydrophilic organic matter treatment system in the above embodiment is as follows:

[0044] (1) The influent containing algae-derived organic matter is filtered through a microporous filtration assembly and then enters a resin separation assembly for treatment to form effluent mainly containing algae-derived hydrophilic organic matter. The microporous filtration assembly is composed of N resin columns with a pore size of 2-5 cm. The flow rate of the influent in each resin column is 1-2 mL / min, and the resin separation treatment time is 0.5-1 h.

[0045] (2) The effluent after resin separation treatment enters the photocatalytic reactor, where it completes photocatalytic treatment to remove algae-derived hydrophilic organic matter in the water. The residence time of the influent in the photocatalytic reactor is 20-40 minutes.

[0046] (3) The effluent from the photocatalytic reactor enters a deep purification device, and the adsorption filler of the deep purification device further adsorbs the effluent from step (2), and the adsorption treatment time is 16-24 hours.

[0047] Comparative Example

[0048] A comparative example was also prepared. The difference between the treatment system used in the comparative example and the hydrophilic organic matter treatment system in this application is that the comparative example does not have a resin separation component. After the influent water is filtered by the microporous filtration component, it enters the photocatalytic reactor and the adsorption filler area for treatment in sequence. The influent water of the comparative example is the same as that of the experimental example.

[0049] A comparative example is also provided. The difference between the treatment system used in this comparative example and the hydrophilic organic matter treatment system of water body in this application is that the comparative example does not have a resin separation component. After the influent is filtered by the microporous filter component, it enters the photocatalytic reactor and the adsorption filler area in turn for treatment.

[0050] The algae-derived organic matter in the influent liquid in the experimental example and the comparative example, as well as the effluent obtained from the photocatalytic reactor after photocatalysis, was detected by the following method:

[0051] EEM fluorescence spectra of all post-membrane algae-derived organic matter solutions were analyzed using an F-7000 fluorescence spectrophotometer. A 450W xenon lamp was used as the excitation source, with the excitation / emission (Ex / Em) wavelength ranges set to 200-450 nm and 250-600 nm, respectively, and fluorescence data recorded every 5 nm. EEM spectra of all water samples were obtained under the same conditions by subtracting a pure water blank. The scattered component was removed, and DOM fluorescence signatures were obtained using the parallel factor analysis (PARAFAC) method.

[0052] The experimental results show that the fluorescent substance intensity of algae-derived organic matter in water at different residence times in the photocatalytic reactor in the experimental example is shown in the following table, where C1, C2, and C3 are different types of algae-derived organic matter:

[0053]

[0054] The fluorescent substance intensity of the algae-derived hydrophilic organic matter stock solution in water at different residence times in the photocatalytic reactor in the experimental example is shown in the following table:

[0055]

[0056] The removal efficiency of algae-derived hydrophilic organic matter in the experimental example was calculated, and the fluorescent substance intensity of the algae-derived hydrophilic organic matter stock solution in the water at different residence times in the photocatalytic reactor in the comparative example was measured to obtain the removal efficiency of algae-derived hydrophilic organic matter in the comparative example. The comparison is as follows:

[0057]

[0058]

[0059] It can be seen from the above experimental results that the removal efficiency of hydrophilic organic matter in the water body hydrophilic organic matter treatment system in this application is significantly greater than that in the control example. At the same time, the removal efficiency of ammonia nitrogen and scale in the water body by the adsorption material in this application can reach more than 75%, which can effectively remove inorganic nitrogen and phosphorus, thereby realizing comprehensive treatment of eutrophic water bodies rich in algae-derived hydrophilic organic matter.

[0060] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention's patent should be determined by the claims.

Claims

1. A system for treating hydrophilic organic matter in water, characterized in that: Including the following settings: A hydrophobic organic matter removal device is provided with a resin separation component, and the hydrophobic organic matter in the influent is adsorbed and treated by the resin separation component to form effluent mainly containing hydrophilic organic matter; The photocatalytic reactor is provided with a light source and filled with a photocatalyst to perform photocatalytic treatment on the hydrophilic organic matter in the effluent water.

2. The hydrophilic organic matter treatment system for water according to claim 1, characterized in that: A deep purification device is further provided downstream of the photocatalytic reactor. An adsorption material area is provided in the deep purification device, and the adsorption material area is filled with adsorption material.

3. The hydrophilic organic matter treatment system for water according to claim 2, characterized in that: The resin separation component adopts XAD series non-polar macroporous adsorption resin.

4. The hydrophilic organic matter treatment system for water according to claim 3, characterized in that: In the hydrophobic organic matter removal device, a filtering component is further provided upstream of the resin separation component.

5. The hydrophilic organic matter treatment system for water according to claim 4, characterized in that: The photocatalyst is made of at least one of a BiPO4 composite material or a TiO2 composite material; the light source is a low-pressure ultraviolet lamp, and the wavelength of the light source is 254nm.

6. The system for treating hydrophilic organic matter in water according to any one of claims 2 to 5, characterized in that: The adsorption material is a sediment modified material.

7. The hydrophilic organic matter treatment system for water according to claim 6, characterized in that: Ultraviolet-fluorescence signal sensors are respectively provided upstream and downstream of the photocatalytic reaction zone, and downstream of the adsorption material zone; a control system is also provided, the control system is respectively connected to each of the ultraviolet-fluorescence signal sensors, receives signals from each ultraviolet-fluorescence signal sensor and makes a judgment: When the difference between the detection value Z1 of the ultraviolet-fluorescence signal sensor upstream of the photocatalytic reaction zone and the detection value Z2 of the ultraviolet-fluorescence signal sensor downstream of the photocatalytic reaction zone is less than a first set value, the photocatalytic reaction zone is determined to be invalid; when the difference is greater than or equal to the first set value, the photocatalytic reaction zone is determined to be valid; When the difference between the detection value Z2 of the ultraviolet-fluorescence signal sensor downstream of the photocatalytic reaction zone and the detection value Z3 of the ultraviolet-fluorescence signal sensor downstream of the deep processing zone is less than a second set value, the adsorption material zone is judged to be invalid; when the difference is greater than or equal to the second set value, the adsorption material zone is judged to be valid.

8. The hydrophilic organic matter treatment system for water according to claim 7, characterized in that: An alarm device is also provided, which is connected to the control system. When the control system determines that any one of the photocatalytic reaction area and the adsorption material area fails, the alarm device is activated to sound an alarm.

9. A method for treating hydrophilic organic matter in water, characterized in that: The following steps are involved: (1) Resin separation treatment is performed on water taken from eutrophic water bodies to remove hydrophobic organic matter in the water and form effluent mainly containing hydrophilic organic matter; (2) The effluent after resin separation treatment is subjected to photocatalytic treatment to remove hydrophilic organic matter in the water.

10. The method for treating hydrophilic organic matter in water according to claim 9, characterized in that: The method further includes step (3): using an adsorption material to further adsorb the effluent from step (2) to further remove inorganic nitrogen and phosphorus, thereby achieving deep purification of the eutrophic water body.

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