A drinking water disinfection device and method

Abstract

The present invention discloses a drinking water disinfection device and method, belonging to the technical field of water body treatment. The present invention includes a housing, on which a drinking water inlet and an outlet are provided. Along the direction from the drinking water inlet to the outlet, a primary treatment chamber, a secondary treatment chamber and an electrolysis chamber are sequentially arranged in the housing; an adsorption resin is arranged in the primary treatment chamber, an ion exchange resin is arranged in the secondary treatment chamber, and an anode electrode and a cathode electrode are arranged in the electrolysis chamber; the present invention jointly purifies the water body through the adsorption resin and the ion exchange resin in the primary and secondary treatment chambers, and couples the resin treatment chamber with the electrolysis treatment chamber, greatly improving the removal effect of charged organic matter, halogen ions and calcium and magnesium ions in the water body, and being beneficial to the further disinfection of the water body during the electrolysis process. Under the condition of low cost, while efficiently purifying water and sterilizing, the generation amount of disinfection by-products can be greatly reduced, and the toxicity of the effluent can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and more specifically, to a drinking water disinfection device and method. Background Art

[0002] Water is the source of life, and the quality of domestic drinking water is closely related to people's physical health. To ensure the safety of drinking water, it is necessary to disinfect the drinking water before it is transported to the urban water supply network. At present, chlorine disinfection is the most widely used in China, but chlorine disinfection will produce disinfection by-products that are teratogenic, carcinogenic, and mutagenic. In addition, after the tap water leaves the factory, it has to pass through long water supply pipelines, high-rise water towers, water tanks and other facilities. During the transportation process, rust, dirt, etc. will cause serious secondary pollution to the water quality, and at the same time, it will also lead to the growth of pathogenic bacteria. Therefore, when the drinking water is transported to the user terminal, deep purification is particularly important. Natural organic matter (NOM) and halogen ions (Br – , Cl – ) widely exist in the source water of drinking water. Under the action of disinfectants, a series of halogenated disinfection by-products will be produced, which are the main precursors of disinfection by-products. In addition, after the tap water leaves the factory, it passes through water supply pipelines, high-rise water towers, water tanks and other facilities during the transportation process. Rust, dirt, etc. will cause secondary pollution to the water quality, and at the same time, it will also lead to the growth of pathogenic bacteria (e.g., Escherichia coli).

[0003] At present, the water purifiers on the market mainly use membrane technology, ceramic filter element technology, activated carbon technology, etc. to carry out deep purification of drinking water. The "membrane technology" water purifiers are divided into four categories: "microfiltration", "ultrafiltration", "nanofiltration", and "reverse osmosis". Among them, the "microfiltration", "ultrafiltration", and "ceramic filter element" technologies are difficult to effectively filter fine pollutants and reduce disinfection by-products; while "nanofiltration" and "reverse osmosis" can produce pure water, but on the one hand, they consume a large amount of water and electricity, with high costs, and on the other hand, they are not pollution-resistant and are easily decomposed by bacteria and other microorganisms, resulting in a reduced service life; the activated carbon adsorption technology cannot remove pathogenic microorganisms in the water and needs to be used in combination with other disinfection technologies, which limits its practical application. In summary, due to the limitations of the end-user conditions, some of the current water purifiers on the market are difficult to have the conditions for industrial water treatment and cannot guarantee the safety of tap water.

[0004] Upon retrieval, the application number is 201710925957.0, the application date is October 5, 2017, and the invention-creation name is: A new type of water purifier for sterilizing and disinfecting drinking water. The solution disclosed in this application case includes a base, a first purification tank, and a second purification tank. At the bottom of the inner cavity of the first purification tank, a metal tank is fixedly installed. Between the top plate and the bottom plate of the metal tank, an ultraviolet lamp tube is fixedly installed. At the top of the metal tank, a water inlet pipe is provided, and the end of the water inlet pipe away from the metal tank penetrates through the first purification tank and extends to the outside of the first purification tank; inside the second purification tank, a partition is provided. The partition is located below the connecting water pipe, and a gas spray head is provided on the partition. At the top of the second purification tank, an ozone generator is fixedly installed. The air outlet of the ozone generator is communicated with the air inlet of the gas spray head through a first connecting pipe. At the back side of the second purification tank, an ozone recovery device is fixedly installed. The air inlet of the ozone recovery device is communicated with a second connecting pipe. The end of the second connecting pipe away from the ozone recovery device penetrates through the top plate of the second purification tank and extends into the second purification tank. This device can achieve that when the drinking water passes through the metal tank of the first purification tank, the ultraviolet lamp tube in the metal tank disinfects the drinking water for the first time, and in the second purification tank, the drinking water is disinfected for the second time by introducing ozone gas, making the disinfection of the drinking water more thorough and increasing the safety of the drinking water. However, this device does not have a purification module and fails to effectively remove fine particles and some organic substances in the drinking water, so that disinfection by-products may be further generated during the subsequent ozone disinfection process. In addition, using ozone will affect the taste of the water, damage the gastric mucosa, increase free radicals, and is harmful to the human body; when using an ultraviolet germicidal lamp, the quartz sleeve needs to be wiped and cleaned every week. Otherwise, the mucous layer formed by bacterial secretions and bacterial corpses on the quartz tube will greatly reduce and even eliminate the germicidal effect of ultraviolet rays. Therefore, in practical applications, the treatment effect and treatment efficiency are very limited, and the use cost is relatively high. Summary of the Invention

[0005] 1. Technical problems to be solved by the invention

[0006] The purpose of the present invention is to provide a drinking water disinfection device and method for the technical problem that it is difficult to disinfect and sterilize existing drinking water in a low-cost and high-efficiency manner. Through this device, the multi-stage series connection of adsorption resin, ion exchange resin, and electrolysis of water is realized to effectively disinfect and sterilize the water body.

[0007] 2. Technical solutions

[0008] To achieve the above purpose, the technical solutions provided by the present invention are as follows:

[0009] A drinking water disinfection device of the present invention includes a housing, on which a drinking water inlet and an outlet are provided. Along the direction from the drinking water inlet to the outlet, a primary treatment chamber, a secondary treatment chamber and an electrolysis chamber are successively arranged in the housing. An adsorption resin is arranged in the primary treatment chamber to first adsorb the color and organic pollutants in the water body; an ion exchange resin is arranged in the secondary treatment chamber to perform ion exchange on the water body adsorbed by the adsorption resin; an anode electrode and a cathode electrode are arranged in the electrolysis chamber to electrolyze the water body ion-exchanged by the ion exchange resin.

[0010] Preferably, the primary treatment chamber and the secondary treatment chamber are separated by a first barrier layer, and the secondary treatment chamber and the electrolysis chamber are separated by a second barrier layer.

[0011] Preferably, the primary treatment chamber is provided with a backwash water inlet, and the adsorption resin is arranged in the primary treatment chamber between the drinking water inlet and the backwash water inlet.

[0012] Preferably, the adsorption resin is an adsorption resin layer, a first card slot is arranged on the side wall of the primary treatment chamber, and the adsorption resin layer is fixed in the primary treatment chamber through the first card slot, and / or the ion exchange resin is an ion exchange resin layer, a second card slot is arranged on the side wall of the secondary treatment chamber, and the ion exchange resin layer is fixed in the secondary treatment chamber through the second card slot.

[0013] Preferably, the adsorption resin is a hypercrosslinked adsorption resin.

[0014] Preferably, an electrode card slot is arranged in the electrolysis chamber, and the anode electrode and the cathode electrode are fixed in the electrolysis chamber through the electrode card slot.

[0015] Preferably, the ion exchange resin includes a cation exchange resin layer and an anion exchange resin layer, and the water body first passes through the cation exchange resin layer and then through the anion exchange resin layer.

[0016] Preferably, the anion exchange resin layer is a chlorine-type anion exchange resin.

[0017] A drinking water disinfection method of the present invention is to first adsorb the water body through an adsorption resin to adsorb the color and organic pollutants in the water body; then use an ion exchange resin to perform ion exchange on the adsorbed water body; and finally electrolyze the water body after ion exchange.

[0018] Preferably, the specific steps are as follows:

[0019] Step 1: Introduce the water body into the primary treatment chamber and perform adsorption treatment with a hypercrosslinked adsorption resin to adsorb the color and organic pollutants in the water body;

[0020] Step 2: Introduce the water body after adsorption treatment into the secondary treatment chamber. First, exchange the cations in the water body through cation exchange resin, and then perform ion exchange on the water body through chloride-form anion exchange resin;

[0021] Step 3: Introduce the water body after ion exchange into the electrolysis chamber for electrolysis treatment.

[0022] 3. Beneficial effects

[0023] Adopting the technical solution provided by the present invention, compared with the existing well-known technologies, it has the following remarkable effects:

[0024] (1) A drinking water disinfection device of the present invention includes a housing. A drinking water inlet and an outlet are provided on the housing. Along the direction from the drinking water inlet to the outlet, a primary treatment chamber, a secondary treatment chamber, and an electrolysis chamber are sequentially arranged in the housing; an adsorption resin is arranged in the primary treatment chamber, an ion exchange resin is arranged in the secondary treatment chamber, and an anode electrode and a cathode electrode are arranged in the electrolysis chamber. The adsorption resin and the ion exchange resin in the primary and secondary treatment chambers are used to jointly purify the water body, and the resin treatment chamber is coupled with the electrolysis treatment chamber, greatly improving the removal effect of charged organic matter, halogen ions, and calcium and magnesium ions in the water body, and facilitating the further disinfection of the water body during the electrolysis process. Under the condition of low cost, while efficiently purifying water and sterilizing, the generation amount of disinfection by-products can be significantly reduced, and the toxicity of the effluent can be reduced.

[0025] (2) A drinking water disinfection method of the present invention first adsorbs the water body through adsorption resin to adsorb the chromaticity and organic pollutants in the water body; then uses ion exchange resin to perform ion exchange on the water body after adsorption treatment; finally, electrolyzes the water body after ion exchange; through the two-stage series connection of adsorption resin and ion exchange resin treatment, the characteristics of large surface area, strong adsorption performance, and easy elution and regeneration of the adsorption resin are used to perform primary pretreatment on drinking water, while the secondary resin further removes charged organic matter, inorganic halogen ions, and calcium and magnesium ions in the water body through ion exchange. The two-stage resin reactor strengthens the effect of purifying and softening water quality through series connection. Among them, the primary pretreatment effectively reduces the problem of pollution saturation of the secondary resin reactor and provides convenience for resin regeneration. Brief description of the drawings

[0026] Figure 1 It is a structural cross-sectional view of a drinking water disinfection device of the present invention;

[0027] Figure 2 It is a perspective cross-sectional structural schematic diagram of a drinking water disinfection device of the present invention.

[0028] Explanation of the reference numerals in the schematic diagram:

[0029] 100, housing; 101, first barrier layer; 102, second barrier layer;

[0030] 110, primary treatment chamber; 111, drinking water inlet; 112, first card slot; 113, adsorption resin layer; 114, backwash water inlet;

[0031] 120, secondary treatment chamber; 121, cation exchange resin layer; 122, anion exchange resin layer; 123, second card slot;

[0032] 130, electrolysis chamber; 131, electrode card slot; 132, anode electrode; 133, cathode electrode; 134, water outlet; 135, flow-through hole. Detailed implementation mode

[0033] To further understand the content of the present invention, the present invention will be described in detail in combination with the drawings and embodiments.

[0034] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope that can be implemented. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope that the present invention can be implemented; in addition, the various embodiments of the present invention are not independent of each other but can be combined.

[0035] Embodiment 1

[0036] A drinking water disinfection device according to this embodiment, as Figures 1-2 shown, includes a housing 100, and a drinking water inlet 111 and a water outlet 134 are provided on the housing 100. Along the direction from the drinking water inlet 111 to the water outlet 134, a primary treatment chamber 110, a secondary treatment chamber 120, and an electrolysis chamber 130 are sequentially arranged in the housing 100; an adsorption resin is provided in the primary treatment chamber 110 to first adsorb the chromaticity and organic pollutants in the water body; an ion exchange resin is provided in the secondary treatment chamber 120 to perform ion exchange on the water body adsorbed by the adsorption resin; an anode electrode 132 and a cathode electrode 133 are provided in the electrolysis chamber 130 to electrolyze the water body ion-exchanged by the ion exchange resin.

[0037] In this embodiment, a first card slot 112 is provided on the side wall of the primary treatment chamber 110. The adsorption resin layer 113 is fixed in the primary treatment chamber 110 through the first card slot 112. The adsorption resin provided in the primary treatment chamber 110 is a hyper-crosslinked adsorption resin.

[0038] The primary treatment chamber 110 and the secondary treatment chamber 120 are separated by a first barrier layer 101. The first barrier layer 101 is a screen layer, and the screen layer is composed of two overlapping 100-mesh annular screens. The ion exchange resin provided in the secondary treatment chamber 120 is an ion exchange resin layer. A second card slot 123 is provided on the side wall of the secondary treatment chamber 120. The ion exchange resin layer is fixed in the secondary treatment chamber 120 through the second card slot 123. The ion exchange resin layer includes a cation exchange resin layer 121 and an anion exchange resin layer 122. It is necessary to let the water body pass through the cation exchange resin layer 121 first and then through the anion exchange resin layer 122 for treatment. The anion exchange resin layer 122 is a chloride-type anion exchange resin.

[0039] In this embodiment, the disinfection device is cylindrical. The water inlet 111 and the water outlet 134 are respectively arranged at both ends of the cylindrical disinfection device. The water body to be treated first enters the primary treatment chamber 110 from the water inlet 111 at one end. In the primary treatment chamber 110, the water body to be treated passes through the adsorption resin layer 113. By utilizing the characteristics of the hyper-crosslinked adsorption resin in the adsorption resin layer 113, such as large surface area, strong adsorption performance, and easy elution and regeneration, primary pretreatment of drinking water is carried out, mainly for adsorbing and removing the color and organic pollutants in the water, improving water quality and taste. Multiple adsorption resin layers 113 can be provided. In this embodiment, 3 are provided.

[0040] In addition, the primary treatment chamber 110 is provided with a backwash water inlet 114. The adsorption resin is arranged in the primary treatment chamber 110 between the drinking water inlet 111 and the backwash water inlet 114. When the adsorption resin layer 113 in the primary treatment chamber 110 needs to be cleaned after being treated for a period of time, water is used to enter the primary treatment chamber 110 from the backwash water inlet 114 and then flow out from the water inlet 111. This process realizes the backwashing of the adsorption resin layer 113, enabling the adsorption resin layer 113 to perform more efficient adsorption subsequently.

[0041] When the water body is adsorbed and treated by the adsorption resin layer 113 in the primary treatment chamber 110, the water body enters the secondary treatment chamber 120 through the first barrier layer 101. In the secondary treatment chamber 120, the water body first passes through the cation exchange resin layer 121. Through the cation exchange resin layer 121, cations such as calcium and magnesium in the water body are ion-exchanged to achieve the softening of the water body. Then the water body passes through the anion exchange resin layer 122 for the anion exchange process.

[0042] After adsorption treatment by the adsorption resin layer 113 in the primary treatment chamber 110, combined with the coordinated treatment of the cation exchange resin layer 121 and the anion exchange resin layer 122 in the secondary treatment chamber 120, the charged organic matter, calcium and magnesium ions, and inorganic halogen ions in the water body are effectively removed, and the drinking water is subjected to multi-stage purification treatment, while exchanging the chloride ions necessary for subsequent electrolytic disinfection.

[0043] In the electrolysis chamber 130, an anode electrode 132 and a cathode electrode 133 are provided, which electrolyze the water body after the ion exchange by the ion exchange resin. Specifically, an electrode slot 131 is provided in the electrolysis chamber 130, and the anode electrode 132 and the cathode electrode 133 are fixed in the electrolysis chamber 130 through the electrode slot 131; the anode electrode 132 and the cathode electrode 133 are connected to an external power source; and Figure 2 As shown, a flow hole 135 is provided between the electrode slot 131 and each electrode.

[0044] The secondary treatment chamber 120 is separated from the electrolysis chamber 130 by a second barrier layer 102. The second barrier layer 102 is a mesh layer composed of three layers of 200-mesh annular meshes stacked in an interlaced manner. The mesh layer is used to intercept resin fragments in the water body and ensure the water quality of the electrolysis chamber 130. The water body treated by ion exchange in the secondary treatment chamber 120 enters the electrolysis chamber 130 through the second barrier layer 102. After being treated by the anion exchange resin layer 122 in the secondary treatment chamber 120, the water body contains chloride ions. After the anode electrode 132 and the cathode electrode 133 in the electrolysis chamber 130 are energized, the water body is electrolyzed, and the chloride ions are electrolyzed to precipitate chlorine gas. The water body in the secondary treatment chamber 120 flows through the electrode slot 131 and the flow holes 135 between the electrodes. During the flow, the precipitated chlorine gas generates hypochlorous acid in the water body to disinfect the water body.

[0045] The disinfection method using the above-mentioned implementation device is to first subject the water body to adsorption treatment through adsorption resin to adsorb the chromaticity and organic pollutants in the water body; then use ion exchange resin to perform ion exchange on the water body after adsorption treatment; finally, electrolyze the water body after ion exchange.

[0046] The specific steps are:

[0047] Step 1: passing the water into the primary treatment chamber (110), and using ultra-high cross-linked adsorption resin for adsorption treatment to adsorb the chromaticity and organic pollutants in the water;

[0048] Step 2: passing the water body after the adsorption treatment into the secondary treatment chamber (120), firstly exchanging the cations in the water body with the cation exchange resin, and then exchanging the ions in the water body with the chloride type anion exchange resin;

[0049] Step 3: Introduce the water body after ion exchange into the electrolysis chamber (130) for electrolysis treatment.

[0050] In this embodiment, the water body is sampled after being treated with ion exchange resin, and the content of natural organic matter (NOM), Br - content, total hardness (calculated as CaCO3, mg / L), and Cl - content in the water body are detected; the water body is electrolyzed in the electrolysis chamber (130) for 19 s, sampled after being discharged from the water outlet (134), and the content of Escherichia coli and total organic halogen (TOX) are detected. The detection results are shown in Table 1.

[0051] Comparative Example 1

[0052] Comparative Example 1 is basically the same as Example 1, except that in this comparative example, there is no adsorption resin in the primary treatment chamber (110). After the water body enters from the drinking water inlet (111), it directly enters the secondary treatment chamber (120) for cation exchange treatment and anion exchange treatment by ion exchange resin. In the disinfection step, the step of using ultra-high cross-linked adsorption resin for adsorption treatment in Step 1 to adsorb the chromaticity and organic pollutants in the water body is also removed. In this embodiment, the water body is sampled after being treated with ion exchange resin, and the content of natural organic matter (NOM), Br - content, total hardness (calculated as CaCO3, mg / L), and Cl - content in the water body are detected; the water body is electrolyzed in the electrolysis chamber (130) for 19 s, sampled after being discharged from the water outlet (134), and the content of Escherichia coli and total organic halogen (TOX) are detected. The detection results are shown in Table 1.

[0053] Comparative Example 2

[0054] Comparative Example 1 is basically the same as Example 1, except that in this comparative example, there is no cation exchange resin layer (121) in the secondary treatment chamber (120). After the water body enters from the drinking water inlet (111) and is treated with the adsorption resin in the primary treatment chamber (110), the water body enters the secondary treatment chamber (120) without passing through the cation exchange resin layer (121) for treatment, but only through the anion exchange resin layer (122) for treatment. In the disinfection step, the step of exchanging cations in the water body through the cation exchange resin in Step 2 is also removed. In this embodiment, the water body is sampled after being treated with ion exchange resin, and the content of natural organic matter (NOM), Br - content, total hardness (calculated as CaCO3, mg / L), and Cl -Content; The water body is electrolytically treated in the electrolytic chamber (130) for 19 s, discharged from the water outlet (134), and then sampled and tested for the content of Escherichia coli and the content of total organic halogen (TOX). The test results are shown in Table 1.

[0055] Table 1 Content table of water treatment pollutants in examples or comparative examples

[0056]

[0057]

[0058] Under normal circumstances, the main treatment object of the adsorption resin layer 113 is NOM, and the main treatment objects of the cation exchange resin layer 121 are cations such as calcium and magnesium (Ca 2+ , Mg 2+ ). The anion exchange resin layer 122 functions to remove charged organic substances and halogen ions (Br – ). From the data comparison in Table 1, it can be seen that for NOM, after the adsorption resin layer 113, cation exchange resin, and anion exchange resin are used in combination in Example 1, the content of NOM decreases significantly; for the content of Br - , after the adsorption resin layer 113, cation exchange resin, and anion exchange resin are used in combination in Example 1, the content of Br - decreases significantly; for the content of Cl - , after the adsorption resin layer 113, cation exchange resin, and anion exchange resin are used in combination in Example 1, the content of Cl - increases significantly, which is beneficial to the subsequent electrolysis process; for the total hardness (calculated as CaCO3, mg / L), after the adsorption resin layer 113, cation exchange resin, and anion exchange resin are used in combination in Example 1, the content of CaCO3 decreases significantly; for the content of Escherichia coli, after the adsorption resin layer 113, cation exchange resin, and anion exchange resin are used in combination in Example 1, the content of Escherichia coli decreases significantly; for TOX, after the adsorption resin layer 113, cation exchange resin, and anion exchange resin are used in combination in Example 1, the content of TOX decreases significantly.

[0059] It can be seen from this that a drinking water disinfection device in Example 1 jointly purifies the water body through the adsorption resin and ion exchange resin in the primary and secondary treatment chambers, and for the precursors of disinfection by-products NOM and Br –The reduction rates all exceed 90%, and the total hardness removal rate can be as high as 70% to achieve the purpose of appropriately softening the water quality. At the same time, about 106 mg / L of chloride ions are exchanged for electrolytic disinfection. Under the same conditions of simulated drinking water samples, when 5 mg / L of chlorine is added by the chemical chlorination method, about 500 μg / L of TOX is generated, while this disinfection method only generates about 37 μg / L of TOX, which can effectively reduce the generation of halogenated DBPs. In addition, while controlling the generation of disinfection by-products, this disinfection method achieves a high-efficiency bactericidal effect. Only by electrolytic disinfection for 19 s, the killing rate of Escherichia coli exceeds 99.9975%, significantly improving the bactericidal effect.

[0060] Comparative Example 1 is basically the same as Example 1, except that there is no adsorption treatment and only ion exchange. The NOM removal rate decreases significantly, indicating that the anion exchange resin layer has a certain removal effect on NOM, but the removal effect of NOM is also affected by the adsorption resin layer. Due to the reduction of precursor reduction, compared with Example 1, the generation amount of disinfection by-products slightly increases, and about 85 μg / L of TOX is generated by this disinfection method. It shows that the adsorption treatment has an important impact on the purification and disinfection of drinking water.

[0061] Comparative Example 2 is basically the same as Example 1, except that there is no cation exchange treatment and only adsorption and anion exchange. Compared with the influent water, the total hardness content of the treated effluent remains basically unchanged, and the water quality is not softened. Although other index parameters also fluctuate less, the contents of Ca 2+ and Mg 2+ in the water are high. The electrode sheets are prone to scaling during long-term treatment, which affects the electrolysis efficiency and reduces the service life of the electrode sheets. It shows that the cation exchange resin treatment has an important impact on the purification and disinfection of drinking water.

[0062] Therefore, when using a drinking water disinfection device and method disclosed in the present invention, the water body is jointly purified by the adsorption resin and ion exchange resin in the first and second treatment chambers, and the resin treatment chamber is coupled with the electrolysis treatment chamber, which greatly improves the removal effects of charged organic matters, halogen ions, calcium and magnesium ions in the water body, and is beneficial to the further disinfection of the water body during the electrolysis process. Under the condition of low cost, while achieving high-efficiency water purification and sterilization, the generation amount of disinfection by-products can be greatly reduced, and the toxicity of the effluent can be reduced.

[0063] In the above text, the present invention has been described in detail with specific exemplary embodiments. However, it should be understood that various modifications and variations can be made without departing from the scope of the present invention defined by the appended claims. The detailed description and the drawings should be considered as illustrative only and not restrictive. If there are any such modifications and variations, they will all fall within the scope of the present invention described herein. In addition, the background art is intended to illustrate the research and development status and significance of the present technology and is not intended to limit the present invention or the application fields of the present application and the present invention.

[0064] More specifically, although exemplary embodiments of the present invention have been described herein, the present invention is not limited to these embodiments, but includes any and all embodiments that can be recognized by those skilled in the art based on the foregoing detailed description, such as modifications, omissions, combinations between various embodiments, adaptive changes, and / or substitutions. The limitations in the claims may be broadly construed in accordance with the language used in the claims and are not limited to the examples described in the foregoing detailed description or during the implementation of the application, and these examples should be considered non-exclusive. Any steps recited in any method or process claim may be executed in any order and are not limited to the order set forth in the claims. Accordingly, the scope of the present invention should be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.

Claims

1. A drinking water disinfection device, characterized in that, It includes a housing (100), on which a drinking water inlet (111) and an outlet (134) are provided. Along the direction from the drinking water inlet (111) to the outlet (134), a primary treatment chamber (110), a secondary treatment chamber (120) and an electrolysis chamber (130) are sequentially arranged in the housing (100). An adsorption resin is arranged in the primary treatment chamber (110) to first adsorb the color and organic pollutants in the water body; the adsorption resin is a hypercrosslinked adsorption resin. An ion exchange resin is arranged in the secondary treatment chamber (120) to perform ion exchange on the water body adsorbed by the adsorption resin; the ion exchange resin includes a cation exchange resin layer (121) and an anion exchange resin layer (122). The water body first passes through the cation exchange resin layer (121) and then through the anion exchange resin layer (122); the anion exchange resin layer (122) is a chlorine-form anion exchange resin. An anode electrode (132) and a cathode electrode (133) are arranged in the electrolysis chamber (130) to electrolyze the water body ion-exchanged by the ion exchange resin.

2. The drinking water disinfection device according to claim 1, characterized in that, The primary treatment chamber (110) and the secondary treatment chamber (120) are separated by a first barrier layer (101), and the secondary treatment chamber (120) and the electrolysis chamber (130) are separated by a second barrier layer (102).

3. A drinking water disinfection device according to claim 1, wherein, The primary treatment chamber (110) is provided with a backwash inlet (114), and the adsorption resin is arranged in the primary treatment chamber (110) between the drinking water inlet (111) and the backwash inlet (114).

4. A drinking water disinfection device according to claim 1, characterized in that, The adsorption resin is an adsorption resin layer (113), and a first card slot (112) is arranged on the side wall of the primary treatment chamber (110). The adsorption resin layer (113) is fixed in the primary treatment chamber (110) through the first card slot (112), and / or the ion exchange resin is an ion exchange resin layer, and a second card slot (123) is arranged on the side wall of the secondary treatment chamber (120). The ion exchange resin layer is fixed in the secondary treatment chamber (120) through the second card slot (123).

5. A drinking water disinfection device according to claim 1, characterized in that, An electrode card slot (131) is arranged in the electrolysis chamber (130), and the anode electrode (132) and the cathode electrode (133) are fixed in the electrolysis chamber (130) through the electrode card slot (131).

6. A method for disinfecting drinking water, characterized in that, First, the water body is subjected to adsorption treatment through a hypercrosslinked adsorption resin to adsorb the color and organic pollutants in the water body; then, an ion exchange resin is used to perform ion exchange on the water body after the adsorption treatment; the ion exchange is to first exchange the cations in the water body through a cation exchange resin and then perform ion exchange on the water body through a chlorine-form anion exchange resin; finally, the water body after ion exchange is electrolyzed.

7. A method for disinfecting drinking water according to claim 6, characterized in that, The specific steps are as follows: Step 1: Introduce the water body into the primary treatment chamber (110) and perform adsorption treatment using a hypercrosslinked adsorption resin to adsorb the color and organic pollutants in the water body. Step 2: Introduce the water body after the adsorption treatment into the secondary treatment chamber (120), first exchange the cations in the water body through a cation exchange resin, and then perform ion exchange on the water body through a chlorine-form anion exchange resin. Step 3: Introduce the water body after ion exchange into the electrolysis chamber (130) for electrolysis treatment.

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