Water treatment device and recovery treatment system for fermentation liquor evaporation condensate water

Abstract

The utility model relates to the technical field of water treatment, and discloses a water treatment device and a recovery treatment system of fermentation liquor evaporation condensate water, the water treatment device comprises a treatment tank, and a liquid distributor and a gas bubbler are arranged in the treatment tank; the liquid distributor is connected with a to-be-treated water source and can spray to-be-treated water into the treatment tank, the gas bubbler is arranged below the liquid level in the treatment tank and used for introducing ozone into the to-be-treated water, a catalytic converter is further arranged below the liquid level in the treatment tank, and an ozone catalyst is arranged in the catalytic converter; an overflow port is formed in the side wall, between the liquid distributor and the gas bubbler, of the treatment tank; according to the utility model, the pre-mixing of water to be treated and ozone can be realized, the catalytic oxidation effect of the ozone on organic matters in the water to be treated is improved, and the ozone which overflows from the liquid level and is not reacted in time can be utilized, so that the full utilization of the ozone is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a water treatment device and a recovery and treatment system for fermentation liquid evaporated condensed water. Background Art

[0002] Among the related technologies, ozone catalytic oxidation technology is an efficient wastewater deep treatment technology and has been a hot application topic in the field of sewage treatment in recent years. Compared with ozone as a single oxidant, the hydroxyl radical (·OH) formed by ozone under the action of a catalyst has a higher reaction rate with organic matter and is more oxidizing. It can oxidize almost all organic matter. The catalyst can catalyze ozone to directly oxidize organic matter in water into CO2 and H2O, or oxidize and decompose large molecular organic matter into small molecules, making it easier to degrade. In the existing technology, researchers and developers have focused more on the research of ozone catalyst types, hoping to improve the degradation efficiency of organic matter in the water to be treated by optimizing the catalyst type. However, in the actual application of ozone catalytic oxidation technology, the mixing effect of ozone and water to be treated is also crucial to the catalytic degradation efficiency of organic matter, and this also directly affects the utilization rate of ozone. Utility Model Content

[0003] The purpose of the utility model is to solve the problems in the prior art of poor mixing effect of ozone and water to be treated, which leads to poor degradation efficiency of organic matter in the water to be treated and low ozone utilization rate, and to provide a water treatment device that can effectively improve the mixing effect of ozone and water to be treated and realize full utilization of ozone.

[0004] In order to achieve the above object, the utility model provides a water treatment device, comprising a treatment tank extending in a vertical direction, wherein a liquid distributor and a gas bubbler are sequentially arranged in the treatment tank from top to bottom;

[0005] The liquid distributor is connected to a water source to be treated and is capable of spraying the water to be treated into the treatment tank. The gas bubbler is arranged below the liquid level in the treatment tank to pass ozone into the water to be treated. A catalyst is also arranged below the liquid level in the treatment tank, and an ozone catalyst is arranged in the catalyst.

[0006] An overflow port is provided on the side wall of the treatment tank between the liquid distributor and the gas bubbler for supplying water to overflow out of the treatment tank.

[0007] Preferably, the catalyst is arranged above the gas bubbler; and / or

[0008] The processing tank is provided with an exhaust gas outlet above the liquid distributor.

[0009] Preferably, the gas bubbler includes a gas supply pipe extending in a vertical direction and arranged in the treatment tank, the bottom end of the gas supply pipe is provided with a gas distribution pipe extending radially along the treatment tank, and the bottom surface of the gas distribution pipe is provided with gas distribution holes; a coaxially extending rotating shaft is rotatably arranged in the gas supply pipe, the lower end of the rotating shaft extends out of the gas supply pipe and a stirring rod is provided at the lower end of the rotating shaft, the stirring rod is adjacent to the gas distribution pipe and is arranged at intervals, and axial flow blades are provided on the rotating shaft, and the axial flow blades are configured to be pushed by the ozone gas flow passed into the gas supply pipe, so that the rotating shaft can rotate around its own axis.

[0010] Preferably, a plurality of the axial flow blades are provided, and the plurality of the axial flow blades are arranged at intervals along the axial length direction of the rotating shaft.

[0011] Preferably, a packing layer is provided below the liquid distributor, and pores are provided in the packing layer. The pores are configured to guide the water to be treated above the packing layer downward and guide the ozone below the packing layer upward.

[0012] Preferably, a plurality of the packing layers are provided, and the plurality of the packing layers are arranged in the processing tank at intervals along the vertical direction.

[0013] Preferably, a UV lamp is provided on the inner wall of the treatment tank below the liquid level, and an ultraviolet catalyst is provided in the treatment tank. The ultraviolet catalyst is used to receive ultraviolet light emitted by the UV lamp and generate active oxides.

[0014] The utility model also provides a recovery and treatment system for fermentation liquid evaporated condensed water, comprising a flash separation tank and the above-mentioned water treatment device; the water treatment device is used to pre-treat the fermentation liquid evaporated condensed water, and the flash separation tank is used to separate and treat the water-gas mixture from the water treatment device.

[0015] Preferably, the recycling and treatment system further comprises a filtration unit, wherein the filtration unit is configured to filter the fermentation liquid evaporated condensed water entering the water treatment device to remove organic and inorganic impurities in the fermentation liquid evaporated condensed water; and / or

[0016] The recovery and treatment system further comprises an ion exchange device, which is used to perform ion exchange treatment on the treated water from the flash separation tank.

[0017] Preferably, the filtration unit is a reverse osmosis filtration unit.

[0018] Preferably, the ion exchange device comprises a cation exchange column and an anion exchange column connected in series.

[0019] According to the above technical solution, the water to be treated is sprayed into the treatment tank through the liquid distributor, and the ozone in the water to be treated is introduced into the ozone through the gas bubbler. Some ozone that has not yet reacted will overflow the liquid surface and come into contact with the water to be treated evenly distributed by the liquid distributor, thereby achieving pre-mixing of the water to be treated and the ozone. This pre-mixing can enhance the catalytic oxidation effect of ozone on organic matter in the water to be treated, and can also utilize the ozone that has not yet reacted and overflows the liquid surface, thereby achieving full utilization of the ozone. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a water treatment device provided by the utility model;

[0021] Figure 2 yes Figure 1 A magnified schematic diagram of position A in the middle;

[0022] Figure 3 This is a bottom view of a liquid distributor provided by the utility model;

[0023] Figure 4 It is a schematic diagram of a system for recovering and treating fermentation liquid evaporated condensed water provided by the present invention.

[0024] Description of Reference Numerals

[0025] 100, water treatment device; 110, treatment tank; 111, tail gas outlet; 112, overflow port; 120, liquid distributor; 121, liquid inlet pipe; 122, liquid distribution pipe; 123, nozzle; 130, gas bubbler; 131, gas transmission pipe; 132, gas distribution pipe; 1321, gas distribution hole; 133, rotating shaft; 134, stirring rod; 135, axial flow blade; 140, catalyst; 150, packing layer; 160, UV lamp; 200, flash separation tank; 210, liquid inlet; 220, liquid outlet; 230, second pipeline; 240, third pipeline Pipeline; 241, second control valve; 242, second delivery pump; 300, filter unit; 310, water inlet; 320, clear liquid outlet; 330, concentrated water outlet; 340, first pipeline; 341, first control valve; 342, first delivery pump; 400, ion exchange device; 410, cation exchange column; 411, first inlet; 412, first outlet; 413, fourth pipeline; 420, anion exchange column; 421, second inlet; 422, second outlet; 423, fifth pipeline; 500, ozone generator; 510, gas pipeline. DETAILED DESCRIPTION

[0026] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0027] like Figure 1 and Figure 2 As shown, the utility model provides a water treatment device 100, comprising a treatment tank 110 extending in a vertical direction, wherein a liquid distributor 120 and a gas bubbler 130 are sequentially arranged in the treatment tank 110 from top to bottom; the liquid distributor 120 is connected to a water source to be treated and can spray the water to be treated into the treatment tank 110, the gas bubbler 130 is arranged below the liquid level in the treatment tank 110 for passing ozone into the water to be treated, and a catalyst 140 is further arranged below the liquid level in the treatment tank 110, wherein an ozone catalyst is arranged in the catalyst 140; an overflow port 112 is provided on the side wall of the treatment tank 110 between the liquid distributor 120 and the gas bubbler 130 for water to overflow out of the treatment tank 110.

[0028] The water treatment device 100 provided by the present invention can degrade organic matter in the water to be treated to meet the subsequent use requirements of the water to be treated. During specific use, the liquid distributor 120 can spray the water to be treated into the treatment tank 110, and ozone is introduced into the water to be treated through the gas bubbler 130. Ozone can effectively degrade the organic matter in the water to be treated under the catalytic action of the ozone catalyst, thereby reducing the content of organic matter in the water to be treated and meeting the use requirements of the water to be treated. The treated water can overflow from the treatment tank 110 through the overflow port 112.

[0029] In the water treatment device 100 provided by the present invention, the water to be treated is sprayed into the treatment tank 110 through the liquid distributor 120. Among the ozone introduced through the gas bubbler 130, part of the ozone that has not had time to react will overflow the liquid surface and come into contact with the water to be treated evenly distributed by the liquid distributor 120, thereby realizing pre-mixing of the water to be treated and the ozone. Through this pre-mixing, the catalytic oxidation effect of ozone on organic matter in the water to be treated can be improved, and the ozone that has not had time to react and overflows the liquid surface can also be utilized, thereby realizing full utilization of the ozone.

[0030] It can be understood that the water treatment device 100 provided by the utility model, in conjunction with the uniform distribution effect of the liquid distributor 120 on the treated water, is pre-mixed with ozone, and then the degradation treatment of organic matter in the treated water is achieved under the action of the ozone catalyst in the catalyst 140 below the liquid surface, which not only improves the degradation efficiency of organic matter in the treated water, but also realizes the full utilization of ozone.

[0031] The present invention does not impose any special restrictions on the specific structure of the liquid distributor 120, as long as it can spray the water to be treated into the treatment tank 110 in the smallest possible form (such as mist) and mix it with the ozone flowing from bottom to top that has not yet reacted. Figure 3 As shown, the liquid distributor 120 has a liquid inlet pipe 121 extending to the center position of the treatment tank 110, and the bottom of the liquid inlet pipe 121 is provided with multiple liquid distribution pipes 122 extending radially along the treatment tank 110, and the bottom of the liquid distribution pipe 122 is provided with multiple nozzles 123 for uniformly spraying the water to be treated into the treatment tank 110.

[0032] It should be noted that in the present invention, the ozone catalyst provided in catalyst 140 is suitable for catalyzing ozone to degrade organic matter. This ozone catalyst can promote the reaction between ozone and organic matter, thereby enhancing the oxidation effect. Specifically, the presence of the ozone catalyst can provide active centers or reaction pathways for the reaction, reducing the reaction activation energy and making the organic matter more easily oxidized. In addition, the ozone catalyst can also improve ozone utilization, reduce ozone dosage, and reduce treatment costs.

[0033] The present invention does not specifically limit the type of the ozone catalyst, for example, it can be a metal oxide catalyst, a composite oxide catalyst or an organic-inorganic composite catalyst; wherein the metal oxide catalyst can be, for example, a transition metal oxide, more specifically MnO2, CeO2, which provides electrons to ozone, converting it into more active hydroxyl radicals ·OH, thereby enhancing the oxidation ability. At the same time, the metal oxide catalyst can also be adsorbed on the surface of organic matter, increasing the reaction rate of organic matter and ozone. The composite oxide catalyst is composed of a variety of metal oxides, and the catalytic effect is further enhanced by the synergistic effect between different metal elements. The organic-inorganic composite catalyst combines the advantages of organic polymers and metal oxides, which can not only provide active centers for oxidation reactions, but also improve the stability of the catalyst. For example, using polymer-coated metal oxide nanoparticles as catalysts can effectively improve the oxidation efficiency of ozone on organic matter.

[0034] In the present invention, the ozone can be directly produced by the ozone generator 500 in the prior art. Figure 1 As shown, the ozone produced by the ozone generator 500 can be transported to the gas bubbler 130 through the gas pipeline 510.

[0035] In some embodiments, the catalyst 140 is disposed above the gas bubbler 130. With the above structural design, ozone introduced into the water to be treated through the gas bubbler 130 will pass through the catalyst 140 during its spontaneous upward movement, thereby achieving effective utilization of the ozone.

[0036] In some embodiments, the treatment tank 110 is provided with an exhaust gas outlet 111 above the liquid distributor 120 , and the exhaust gas outlet 111 can guide the exhaust gas generated during the ozone catalytic degradation of organic matter out of the treatment tank 110 .

[0037] The present invention does not impose any particular restrictions on the specific structure of the catalyst 140, as long as it can be conveniently installed with the ozone catalyst and easily contact the ozone catalyst with ozone. For example, the catalyst 140 can use a metal-based material carrier commonly used in the art, such as aluminum oxide, cerium oxide, or titanium oxide.

[0038] In the present invention, the mixing effect of ozone and the water to be treated will directly affect the degradation effect of ozone on organic matter in the water to be treated. In some embodiments, the gas bubbler 130 includes an air pipe 131 extending vertically in the treatment tank 110, the bottom end of the air pipe 131 is provided with an air distribution pipe 132 extending radially along the treatment tank 110, and the bottom surface of the air distribution pipe 132 is provided with an air distribution hole 1321; a coaxially extending rotating shaft 133 is rotatably provided in the air pipe 131, the lower end of the rotating shaft 133 extends out of the air pipe 131 and a stirring rod 134 is provided at the lower end of the rotating shaft 133, the stirring rod 134 is adjacent to the air distribution pipe 132 and is spaced apart, and an axial flow blade 135 is provided on the rotating shaft 133, and the axial flow blade 135 is configured to be pushed by the ozone gas flow entering the air pipe 131 so that the rotating shaft 133 can rotate around its own axis.

[0039] In the present invention, ozone can pass through air pipe 131, through air distribution pipe 132, and into the water to be treated via air distribution holes 1321 on its bottom surface. By rotatably installing a rotating shaft 133 within air pipe 131 and attaching axial flow blades 135 to rotating shaft 133, the ozone flow passing through air pipe 131 pushes axial flow blades 135, driving rotating shaft 133 to rotate about its own axis. This in turn drives a stirring rod 134 at the lower end of rotating shaft 133, stirring the ozone ejected from air distribution holes 1321 on the bottom surface of air distribution pipe 132 until it effectively mixes with the water to be treated.

[0040] Furthermore, in some embodiments, a plurality of axial flow blades 135 are provided, and the plurality of axial flow blades 135 are spaced apart along the axial length direction of the rotating shaft 133. It is understood that by providing a plurality of axial flow blades 135, more power required for the rotation of the rotating shaft 133 and the stirring rod 134 can be obtained from the ozone gas flow.

[0041] In some embodiments, a packing layer 150 is provided below the liquid distributor 120, and pores are provided in the packing layer 150. The pores are configured to guide the treated water above the packing layer 150 downward and guide the ozone below the packing layer 150 upward.

[0042] It is understood that the provision of packing layer 150 can further increase the contact area between ozone and the treated water, promoting better mixing of the two. In the present invention, the packing layer 150 can contain a variety of fillers, including but not limited to Raschig rings, Pall rings, or theta rings. In some embodiments, to further enhance the contact between ozone and the treated water, multiple packing layers 150 are provided, with the multiple packing layers 150 being vertically spaced apart within the treatment tank 110.

[0043] In some embodiments, a UV lamp tube 160 is provided on the inner wall of the treatment tank 110 below the liquid level, and an ultraviolet catalyst is provided in the treatment tank 110 . The ultraviolet catalyst is used to receive ultraviolet light emitted by the UV lamp tube 160 and generate active oxides.

[0044] The utility model does not specifically limit the specific type of the ultraviolet photocatalyst, for example, it can be ZnS-ZnO / CeO2, cadmium sulfide, bismuth vanadate, bismuth molybdate or bismuth tungstate; these ultraviolet photocatalysts absorb ultraviolet light, undergo electron transitions, and generate electron-hole pairs. The electrons and holes interact with electron acceptors or electron donors adsorbed on the surface of the ultraviolet photocatalyst to produce highly active and strongly oxidizing active oxides. These active oxides can degrade low-boiling-point organics such as methanol.

[0045] In the prior art, fermentation production basically uses water as a solvent, and the water consumption is particularly large. Generally, considering the cost and sewage treatment, the condensed water in the evaporation process will be recycled. However, the evaporation condensed water of the fermentation liquid is different from the evaporation condensed water from other sources. The condensed water evaporated from the fermentation liquid is slightly yellow in color and contains impurities such as organic acids, pigments and small molecular organic matter. In addition, some inorganic impurities such as ammonium salts remain. Through testing, it was found that some condensed water obtained by fermentation showed a significant acidic pH <5. The pH value of existing industrial boiler water is generally required to be between 8.5-9.5, and the pH value of production boiler water is required to be between 7.0-9.0. Too low or too high pH values ​​will cause corrosion or scaling hazards to the boiler. Therefore, the existing fermentation liquid evaporation condensed water is not suitable for direct use as boiler water or production water. The water treatment device 100 provided by the utility model can degrade impurities such as organic acids, pigments and small molecular organic matter in the fermentation liquid evaporation condensed water so that it can meet the needs of boiler water or production water.

[0046] The present invention also provides a recovery and treatment system for fermentation liquid evaporated condensed water, comprising a flash separation tank 200 and the above-mentioned water treatment device 100; the water treatment device 100 is used to pre-treat the fermentation liquid evaporated condensed water, and the flash separation tank 200 is used to separate and treat the water-gas mixture from the water treatment device 100.

[0047] In the recovery and treatment system provided by the present invention, impurities such as organic acids, pigments and small molecular organic matter in the fermentation liquid evaporated condensed water can be degraded through the water treatment device 100. Since the fermentation liquid evaporated condensed water after treatment also carries some ozone and carbon dioxide, the ozone and carbon dioxide in the fermentation liquid evaporated condensed water are separated through the flash separation tank 200 to obtain usable fermentation liquid evaporated condensed water.

[0048] In some embodiments, the recycling and treatment system further includes a filtration unit 300 , which is configured to filter the fermentation liquid evaporated condensed water entering the water treatment device 100 to remove organic and inorganic impurities in the fermentation liquid evaporated condensed water.

[0049] In a specific embodiment of the present invention, the filtration unit 300 is a reverse osmosis filtration unit. The RO membrane in the reverse osmosis filtration unit can be any conventionally used RO membrane in the art, as long as it is capable of removing small organic molecules from the fermentation broth condensate. In an embodiment of the present invention, the reverse osmosis filtration unit can remove small organic molecules such as acetic acid at a removal rate of 50%-80%.

[0050] In some embodiments, the recovery and treatment system further includes an ion exchange device 400 , and the ion exchange device 400 is used to perform ion exchange treatment on the treated water from the flash separation tank 200 .

[0051] In the present invention, the function of the ion exchange device 400 is to remove the residual cations and anions in the condensed water of the fermentation liquid, thereby reducing the conductivity and hardness. The ion exchange device 400 can be, for example, a cation exchange column 410 filled with a cation exchange resin, or an anion exchange column 420 filled with an anion exchange resin. Taking the cation exchange column 410 as an example, a sodium-type cation exchange resin can be used. The Ca in the water 2+ Mg 2+ Able to exchange Na in sodium cation exchange resin + Phase exchange, thereby adsorbing Ca in water 2+ Mg 2+ In the anion exchange column 420, the hydroxide in the anion exchange resin can exchange other anions in the water, thereby removing other anions in the water.

[0052] In a specific embodiment of the present invention, the ion exchange device 400 includes a cation exchange column 410 and an anion exchange column 420 connected in series. The coordinated cooperation of the cation exchange column 410 and the anion exchange column 420 ensures that the conductivity and hardness of the condensed water obtained by evaporation of the fermentation liquid are significantly reduced.

[0053] like Figure 4 The utility model provides a recovery and treatment system for fermentation liquid evaporated condensate, which includes a reverse osmosis filtration unit, a water treatment device 100, a flash separation tank 200, a cation exchange column 410 and an anion exchange column 420 connected in sequence.

[0054] The reverse osmosis filtration unit has a water inlet 310, a clear liquid outlet 320, and a concentrated liquid outlet 330. Evaporated condensed water from the fermented liquid to be treated enters the reverse osmosis filtration unit through the water inlet 310. After filtration, concentrated water containing impurities such as organic acids flows out of the concentrated water outlet 330, while clear liquid, from which some of the organic acids and other impurities have been removed, flows out of the clear liquid outlet 320. The clear liquid outlet 320 is connected to the liquid distributor 120 of the water treatment device 100 via a first pipe 340. The first pipe 340 is provided with a first control valve 341 and a first delivery pump 342. The clear liquid flowing out of the clear liquid outlet 320 is pressurized by the first delivery pump 342 and then sprayed into the treatment tank 110 through the liquid distributor 120. After catalytic degradation by ozone, the organic matter in the clear liquid is degraded into water and carbon dioxide. The overflow port 112 of the treatment tank 110 is connected to the liquid inlet 210 of the flash separation tank 200 via a second pipe 230. The liquid outlet 220 of the flash separation tank 200 is connected to the first inlet 411 of the cation exchange column 410 via a third pipe 240. The third pipe 240 is provided with a second control valve 241 and a second delivery pump 242. The first outlet 412 of the cation exchange column 410 is connected to the second inlet 421 of the anion exchange column 420 via a fourth pipe 413. The second outlet 422 of the anion exchange column 420 is connected to the boiler water pipeline 1 and the process water pipeline 2, respectively, via a fifth pipe 423. Ozone and carbon dioxide entrained in the condensed water can be extracted through the flash separation tank 200. The cation exchange column 410 and the anion exchange column 420 then remove the remaining cations and anions in the condensed water. The condensed water can then be directly used as boiler water or process water.

[0055] The condensed water from the fermentation liquid evaporation is treated by the recovery and treatment device provided by the utility model, and the residual organic matter in the condensed water is effectively degraded, which greatly improves the water quality of the condensed water, reduces the conductivity and hardness of the condensed water, and ensures that the condensed water can be normally reused.

[0056] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the technical concept of the present invention, various simple variations of the technical solution of the present invention may be made. To avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple variations and combinations should also be considered as disclosed in the present invention and fall within the scope of protection of the present invention.

Claims

1. A water treatment device (100), characterized in that: It comprises a processing tank (110) extending in a vertical direction, wherein a liquid distributor (120) and a gas bubbler (130) are sequentially arranged in the processing tank (110) from top to bottom; The liquid distributor (120) is connected to a water source to be treated and is capable of spraying the water to be treated into the treatment tank (110). The gas bubbler (130) is arranged below the liquid level in the treatment tank (110) to pass ozone into the water to be treated. A catalyst (140) is also arranged below the liquid level in the treatment tank (110), and an ozone catalyst is arranged in the catalyst (140). An overflow port (112) is provided on the side wall of the treatment tank (110) between the liquid distributor (120) and the gas bubbler (130) to allow water to overflow from the treatment tank (110).

2. The water treatment device (100) according to claim 1, characterized in that: The catalyst (140) is disposed above the gas bubbler (130); and / or The processing tank (110) is provided with an exhaust gas outlet (111) above the liquid distributor (120).

3. The water treatment device (100) according to claim 1, characterized in that: The gas bubbler (130) comprises a gas delivery pipe (131) extending in a vertical direction and arranged in the processing tank (110); a gas distribution pipe (132) extending in a radial direction of the processing tank (110) is provided at the bottom end of the gas delivery pipe (131); and gas distribution holes (1321) are provided on the bottom surface of the gas distribution pipe (132); A coaxially extending rotating shaft (133) is rotatably provided in the gas delivery pipe (131), the lower end of the rotating shaft (133) extends out of the gas delivery pipe (131), and a stirring rod (134) is provided at the lower end of the rotating shaft (133), the stirring rod (134) is adjacent to and spaced from the gas distribution pipe (132), and an axial flow blade (135) is provided on the rotating shaft (133), the axial flow blade (135) being configured to be pushed by the ozone gas flow entering the gas delivery pipe (131), so that the rotating shaft (133) can rotate around its own axis.

4. The water treatment device (100) according to claim 3, characterized in that: A plurality of axial flow blades (135) are provided, and the plurality of axial flow blades (135) are arranged at intervals along the axial length direction of the rotating shaft (133).

5. The water treatment device (100) according to claim 1, characterized in that: A packing layer (150) is provided below the liquid distributor (120), and pores are provided in the packing layer (150), wherein the pores are configured to guide the water to be treated above the packing layer (150) downwards and guide the ozone below the packing layer (150) upwards.

6. The water treatment device (100) according to claim 5, characterized in that: A plurality of the packing layers (150) are provided, and the plurality of packing layers (150) are arranged in the processing tank (110) at intervals along a vertical direction.

7. The water treatment device (100) according to any one of claims 1 to 6, characterized in that: A UV lamp tube (160) is provided on the inner wall of the treatment tank (110) below the liquid level. An ultraviolet catalyst is provided in the treatment tank (110). The ultraviolet catalyst is used to receive ultraviolet light emitted by the UV lamp tube (160) and generate active oxides.

8. A system for recovering and treating condensed water from fermentation liquid evaporation, characterized in that: A water treatment device (100) comprising a flash separation tank (200) and any one of claims 1 to 7; The water treatment device (100) is used to pre-treat the condensed water from the fermentation liquid evaporation, and the flash separation tank (200) is used to separate and treat the water-gas mixture from the water treatment device (100).

9. The fermentation liquid evaporated condensate water recovery and treatment system according to claim 8, characterized in that: The recycling and treatment system further comprises a filtering unit (300), wherein the filtering unit (300) is configured to filter the fermentation liquid evaporated condensed water entering the water treatment device (100) to remove organic and inorganic impurities in the fermentation liquid evaporated condensed water; and / or The recovery and treatment system further comprises an ion exchange device (400), wherein the ion exchange device (400) is used to perform ion exchange treatment on the treated water from the flash separation tank (200).

10. The fermentation liquid evaporated condensate water recovery and treatment system according to claim 9, characterized in that: The filtration unit (300) is a reverse osmosis filtration unit.

11. The fermentation liquid evaporated condensate water recovery and treatment system according to claim 9, characterized in that: The ion exchange device (400) includes a cation exchange column (410) and an anion exchange column (420) connected in series.

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