Water treatment equipment capable of efficiently removing residual hydrogen peroxide in water

Abstract

The utility model discloses water treatment equipment capable of efficiently removing residual hydrogen peroxide in water, which comprises a front-end filtering unit, a decomposition treatment unit and a rear-end filtering unit, and the front-end filtering unit and the rear-end filtering unit are respectively provided with a precision filter with the filtering precision of 0.01-0.1 mu m. The decomposition treatment unit is provided with a light processor capable of performing light decomposition on hydrogen peroxide in water and a functional filter capable of performing catalytic decomposition on the hydrogen peroxide in the water while filtering the water; and the precision filter and the functional filter in the front-end filtering unit and the precision filter in the rear-end filtering unit are sequentially communicated in series along the water treatment direction. The water treatment equipment is simple and reasonable in structure, high in operation sensitivity and high in reliability, hydrogen peroxide residues in water can be efficiently and thoroughly removed, the water treatment process is very environment-friendly, secondary pollution is avoided, and huge economic benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to water treatment equipment capable of efficiently removing residual hydrogen peroxide in water. Background Art

[0002] Hydrogen peroxide has strong oxidizing and disinfecting properties and is widely used in industrial production. For example, hydrogen peroxide can be used in the water treatment industry to decompose pollutants in the water; hydrogen peroxide can be used in the food / beverage / pharmaceutical / semiconductor industries to disinfect cleaning water. However, the cleaning water disinfected with hydrogen peroxide cannot be directly recycled for use as raw water in the water treatment system because it contains residual hydrogen peroxide. If it is directly discharged to the sewage plant, it will affect the survival of bacteria in the biological treatment system of the sewage plant, thereby reducing the sewage treatment capacity and even corroding the pipeline. Therefore, it is very necessary to remove the residual hydrogen peroxide in the water.

[0003] At present, chemical methods are mostly used in the market to remove hydrogen peroxide residues in water, such as: adding chemical agents (such as reducing agents) to react with hydrogen peroxide to decompose hydrogen peroxide; or adding biological enzyme preparations to decompose hydrogen peroxide. However, although the above chemical methods can effectively remove hydrogen peroxide to a certain extent, they will also increase many by-products, adding other pollutants to the water, which is not suitable for scenes with high water quality requirements.

[0004] In view of this, the present utility model is proposed. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the utility model provides a water treatment equipment with a simple and reasonable structure, high operating sensitivity and strong reliability. It can efficiently and thoroughly remove the residual hydrogen peroxide in the water. The water treatment process is very environmentally friendly, no secondary pollution is generated, and it has huge economic benefits.

[0006] The utility model adopts a technical solution to solve the technical problem: a water treatment device capable of efficiently removing hydrogen peroxide residue in water, comprising a front-end filtering unit, a decomposition processing unit and a rear-end filtering unit, wherein the front-end filtering unit and the rear-end filtering unit are both provided with a precision filter with a filtering accuracy of 0.01 to 0.1 μm, the decomposition processing unit is provided with a light processor capable of photodecomposing hydrogen peroxide in water and a functional filter capable of filtering water and catalytically decomposing hydrogen peroxide in water at the same time, and the precision filter in the front-end filtering unit, the functional filter and the precision filter in the rear-end filtering unit are sequentially connected in series along a water treatment direction.

[0007] As a further improvement of the utility model, the light processor adopts an ultraviolet water processor, and the ultraviolet wavelength range of the ultraviolet water processor is 185-380nm;

[0008] The filter material in the functional filter can decompose hydrogen peroxide into water and oxygen.

[0009] As a further improvement of the present invention, the precision filters in the front-end filter unit and the rear-end filter unit are defined as a first precision filter and a second precision filter respectively;

[0010] The optical processor is disposed between the first precision filter and the functional filter.

[0011] As a further improvement of the present invention, the decomposition treatment unit is also provided with a treatment water tank connected to and communicated between the functional filter and the second precision filter, and an aeration pipe arranged in the treatment water tank and connected to an external air source.

[0012] As a further improvement of the present invention, the rear-end filter unit is further provided with an activated carbon filter connected to and in communication between the functional filter and the second precision filter.

[0013] As a further improvement of the present invention, the filter element in the precision filter adopts a polypropylene melt-blown filter element.

[0014] As a further improvement of the utility model, a water inlet unit is also provided, which is provided with a temporary water tank which is connected to the first precision filter and the external water supply point through two groups of pipes A respectively, and a water quality detector A is also installed on the pipe A connected between the temporary water tank and the external water supply point, and a booster pump A is also installed on the pipe A connected between the temporary water tank and the first precision filter.

[0015] As a further improvement of the utility model, a water outlet unit is also provided, which is provided with a main water outlet pipe, a water outlet branch pipe A and a water outlet branch pipe B connected together by a three-way valve, the main water outlet pipe is connected and communicated with the water outlet of the second precision filter, and a water quality detector B is also installed on the main water outlet pipe; the water outlet branch pipe A is used to output qualified purified water, and the water outlet branch pipe B is used to output unqualified water.

[0016] The beneficial effects of the utility model are as follows: ① Compared with the prior art, the water treatment equipment of the utility model adopts a water treatment method combining multiple physical methods to decompose and remove the hydrogen peroxide component in the water in multiple forms. Not only is the removal effect more thorough and significant, but the water treatment process is also very environmentally friendly and does not require any chemical additions. The treated water can be directly recycled, saving water resources and having huge economic benefits. ② The water treatment equipment has a simple and reasonable structure, high operating sensitivity, strong reliability, and simple maintenance, which is conducive to production implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the water treatment equipment capable of efficiently removing residual hydrogen peroxide in water according to the utility model.

[0018] Combined with the accompanying drawings, the following description is given:

[0019] 1. Water quality detector A; 2. Temporary water tank; 3. Booster pump A; 4. First precision filter; 5. Photoprocessor; 6. Functional filter; 7. Treatment water tank; 8. Aeration pipe; 9. Booster pump B; 10. Activated carbon filter; 11. Second precision filter; 12. Main water outlet pipe; 13. Water outlet branch pipe A; 14. Water outlet branch pipe B; 15. Water quality detector B. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] Embodiment 1:

[0022] Please see attached Figure 1 As shown, this embodiment 1 provides a water treatment device that can efficiently remove residual hydrogen peroxide in water, which mainly includes a front-end filter unit, a decomposition processing unit and a rear-end filter unit, wherein the front-end filter unit and the rear-end filter unit are both provided with a precision filter with a filtration accuracy of 0.01 to 0.1 μm, the decomposition processing unit is provided with a light processor 5 that can photodecompose the hydrogen peroxide in the water and a functional filter 6 that can filter the water and catalytically decompose the hydrogen peroxide in the water at the same time, and the precision filter in the front-end filter unit, the functional filter 6 and the precision filter in the rear-end filter unit are connected in series in sequence along the water treatment direction D1.

[0023] As can be seen from the above, compared with the disadvantages of existing chemical methods such as incomplete removal of hydrogen peroxide and secondary pollution, the water treatment equipment described in Example 1 adopts a water treatment method that combines multiple physical methods to decompose and remove the hydrogen peroxide components in water in multiple forms. Not only is the removal effect more thorough and significant, but the water treatment process is also very environmentally friendly and does not require any chemical additions. The treated water can be directly recycled, saving water resources and having huge economic benefits.

[0024] The specific structure and working method of the water treatment equipment described in this embodiment 1 are described in detail below.

[0025] First, regarding the specific structure of the water treatment equipment.

[0026] Please continue to refer to the attached Figure 1 As shown, in this embodiment 1, the filter element in the precision filter adopts a polypropylene melt-blown filter element, which can achieve high-precision filtration of the water body. In addition, if the precision filters in the front-end filter unit and the rear-end filter unit are defined as the first precision filter 4 and the second precision filter 11 respectively, this embodiment 1 also preferably controls the optical processor 5 to be arranged between the first precision filter 4 and the functional filter 6. The advantages of adopting the above layout are: on the one hand, by arranging the first precision filter 4 in the front station of the optical processor 5, the transparency of the water body can be effectively improved by the filtering effect of the first precision filter 4, which is conducive to improving the decomposition efficiency of the optical processor 5; on the other hand, by arranging the optical processor 5 in the front station of the functional filter 6, the optical processor 5 can decompose the hydrogen peroxide to a certain extent to improve the efficiency and thoroughness of the filter material in the functional filter 6 to catalyze the decomposition of hydrogen peroxide, thereby improving the efficiency and quality of the decomposition and removal of hydrogen peroxide.

[0027] The light processor 5 is preferably an ultraviolet water processor, and the ultraviolet wavelength range of the ultraviolet water processor is 185-380nm. It is understandable that the ultraviolet rays in the above wavelength range can irradiate and cause the hydrogen peroxide components in the water to decompose into water and oxygen, and can also decompose into hydroxyl groups and other active substances, and the active substances have extremely strong oxidizing properties, which can further degrade organic matter in the water and destroy the cell membrane structure of microorganisms in the water, thereby achieving purification and disinfection of the water body.

[0028] The filter material in the functional filter 6 can decompose hydrogen peroxide into water and oxygen. Specifically, the filter material in the functional filter 6 is a composite material formed by sintering natural ore, activated carbon, binder and deionized water in proportion, wherein the natural ore can be at least one of silicon dioxide, diatomaceous earth, zeolite, silicate, manganese dioxide and aluminate. It can be understood that this embodiment 1 can achieve catalytic decomposition and adsorption of hydrogen peroxide components in water by utilizing the characteristics of the above-mentioned natural ore and activated carbon, thereby significantly improving the removal effect of hydrogen peroxide.

[0029] Note: Regarding the specific composition of the filter material, it can be freely combined and matched according to the design requirements of the equipment. This application does not make any limiting requirements, and it is not the protection point of this application. However, for ease of understanding, this embodiment 1 is illustrated as follows: in terms of weight percentage, the filter material is composed of 25% manganese dioxide, 40% zeolite, 15% activated carbon, 2% binder and 18% deionized water; wherein the manganese dioxide has the function of catalyzing the decomposition of hydrogen peroxide components; the zeolite has a high cation exchange capacity and can adsorb hydrogen peroxide components, impurities, etc. in water; the activated carbon can also adsorb hydrogen peroxide components, impurities, etc. in water.

[0030] In addition, like other filter devices currently available on the market, the functional filter 6 also has forward washing and backwashing functions, which can achieve the regeneration of filter material, restore filtering performance, and extend service life.

[0031] Please continue to refer to the attached Figure 1 As shown, in this embodiment 1, according to the water treatment processing requirements, the decomposition treatment unit may also be selectively provided with a treatment water tank 7 connected and connected between the functional filter 6 and the second precision filter 11, and an aeration pipe 8 provided in the treatment water tank 7 and connected to an external air source. It is understandable that, since the hydrogen peroxide component is an unstable compound, by providing the treatment water tank 7 and the aeration pipe 8, the oxygen content in the water can be increased, thereby accelerating the decomposition reaction of hydrogen peroxide, making it decompose faster to generate water and oxygen, thereby further improving the water treatment efficiency.

[0032] Also according to the requirements of the water treatment process, the rear-end filter unit may be selectively provided with an activated carbon filter 10 connected and communicated between the functional filter 6 and the second precision filter 11. It is understandable that the activated carbon filter 10 can adsorb hydrogen peroxide, impurities, pollutants, etc. in the water, and further improve the removal quality of hydrogen peroxide and the purification quality of water.

[0033] In addition, when the treatment water tank 7 is provided, the installation arrangement of the activated carbon filter 10 is as follows: the activated carbon filter 10 is connected and communicated with the water outlet of the treatment water tank 7 and the water inlet of the second precision filter 11 respectively through two sets of pipes B. In addition, a booster pump B9 is also installed on the pipe B connected between the activated carbon filter 10 and the water outlet of the treatment water tank 7.

[0034] Please continue to refer to the attached Figure 1 As shown, in this embodiment 1, according to the water treatment processing requirements, the water treatment equipment is also provided with a water inlet unit and a water outlet unit, wherein the water inlet unit is provided with a temporary water tank 2 connected and communicated with the first precision filter 4 and the external water supply point through two groups of pipes A, and a water quality detector A1 for detecting water quality parameters (such as hydrogen peroxide concentration or ORP value) is also installed on the pipe A connected between the temporary water tank 2 and the external water supply point, and a booster pump A3 is also installed on the pipe A connected between the temporary water tank 2 and the first precision filter 4. It can be understood that by configuring the temporary water tank 2, the processing beat / efficiency of the water treatment equipment can be made easier to adjust and control.

[0035] The water outlet unit is provided with a main water outlet pipe 12, a water outlet branch pipe A13 and a water outlet branch pipe B14 which are connected together by a three-way valve; the main water outlet pipe 12 is connected and communicated with the water outlet of the second precision filter 11, and a water quality detector B15 which is also used to detect water quality parameters is also installed on the main water outlet pipe 12; the water outlet branch pipe A13 is used to output qualified purified water, and the water outlet branch pipe B14 is used to output unqualified water.

[0036] Next, the working method of the water treatment equipment is described.

[0037] Please continue to refer to the attached Figure 1 As shown, the working method of the water treatment equipment described in this embodiment 1 is:

[0038] S1: The raw water supplied from the external water supply point flows into the temporary water tank 2 through the pipe A. The water quality detector A1 arranged on the pipe A can detect the water quality parameters (such as hydrogen peroxide concentration or ORP value) in the raw water and transmit them to the controller.

[0039] S2: The raw water temporarily stored in the temporary water tank 2 is pressurized by the booster pump A3 and flows into the first precision filter 4. The first precision filter 4 performs high-precision filtration on the raw water flowing therein to obtain first-stage filtered water.

[0040] S3: The first-stage filtered water flows into the functional filter 6 through the pipe C, and during the flow of the first-stage filtered water, the light processor 5 can irradiate to cause the hydrogen peroxide component in the first-stage filtered water to decompose into water, oxygen hydroxyl groups and other active substances, so as to achieve a certain degree of hydrogen peroxide removal treatment, water purification and disinfection of the first-stage filtered water; the functional filter 6 can further efficiently and more thoroughly decompose the hydrogen peroxide component in the first-stage filtered water, and can further filter the water body; then the second-stage filtered water is obtained.

[0041] Note: The pipe C is connected and communicated between the outlet of the first precision filter 4 and the inlet of the functional filter 6 ; the optical processor 5 is arranged on the outside of the pipe C.

[0042] S4: The obtained second-stage filtered water flows into the treatment water tank 7 through the pipeline D. After aeration through the aeration pipe 8, the hydrogen peroxide component in the obtained second-stage filtered water can be further decomposed to obtain the third-stage filtered water.

[0043] Note: The pipe D is connected and communicated between the outlet of the functional filter 6 and the inlet of the treated water tank 7 .

[0044] S5: The third stage filtered water passes through the pipe B and is pressurized by the booster pump B9 before flowing into the activated carbon filter 10. The activated carbon filter 10 can further adsorb hydrogen peroxide, impurities / pollutants, etc. in the third stage filtered water to further improve the removal quality of hydrogen peroxide and the purification quality of water; and the fourth stage filtered water is obtained.

[0045] S6: The fourth-stage filtered water obtained flows into the second precision filter 11 through another of the pipes B. The second precision filter 11 performs high-precision filtration on the fourth-stage filtered water flowing therein to obtain fifth-stage filtered water.

[0046] S7: The water quality detector B15 detects the water quality parameters of the fifth stage filtered water and transmits them to the controller, and the controller analyzes and determines the water quality parameters of the fifth stage filtered water:

[0047] If the water quality parameters of the fifth-stage filtered water meet the requirements, the controller determines that the fifth-stage filtered water is qualified purified water, and controls the three-way valve to work accordingly, so that the fifth-stage filtered water flows out through the outlet branch pipe A13;

[0048] If the water quality parameters of the fifth-stage filtered water do not meet the requirements, the controller determines that the fifth-stage filtered water is unqualified water and controls the three-way valve to operate accordingly so that the fifth-stage filtered water flows out through the outlet branch pipe B14.

[0049] Note: In this specification, the prefixes "first", "second", etc. of the component names (such as the first precision filter, the second precision filter, etc.), and the suffixes "A", "B", etc. of the component names (such as booster pump A, booster pump B, etc.) are only for the convenience of description and are not used to limit the scope of implementation of this utility model patent.

[0050] In summary, the water treatment equipment of the utility model has a simple and reasonable structure, high operating sensitivity and strong reliability, can efficiently and thoroughly remove hydrogen peroxide residues in water, and the water treatment process is very environmentally friendly, no secondary pollution is generated, and has huge economic benefits.

[0051] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A water treatment device capable of efficiently removing residual hydrogen peroxide in water, characterized in that: The invention comprises a front-end filtering unit, a decomposition processing unit and a rear-end filtering unit, wherein the front-end filtering unit and the rear-end filtering unit are both provided with precision filters with a filtering accuracy of 0.01 to 0.1 μm, the decomposition processing unit is provided with a light processor (5) capable of photodecomposing hydrogen peroxide in water and a functional filter (6) capable of filtering water and catalytically decomposing hydrogen peroxide in water at the same time, and the precision filter in the front-end filtering unit, the functional filter (6) and the precision filter in the rear-end filtering unit are sequentially connected in series along the water treatment direction.

2. The water treatment equipment capable of efficiently removing residual hydrogen peroxide in water according to claim 1, characterized in that: The light processor (5) is an ultraviolet water processor, and the ultraviolet wavelength range of the ultraviolet light emitted by the ultraviolet water processor is 185-380nm; The filter material in the functional filter (6) is capable of decomposing hydrogen peroxide into water and oxygen.

3. The water treatment equipment capable of efficiently removing residual hydrogen peroxide in water according to claim 1, characterized in that: The precision filters in the front-end filter unit and the rear-end filter unit are defined as a first precision filter (4) and a second precision filter (11), respectively; The optical processor (5) is arranged between the first precision filter (4) and the functional filter (6).

4. The water treatment equipment capable of efficiently removing residual hydrogen peroxide in water according to claim 3, characterized in that: The decomposition treatment unit is also provided with a treatment water tank (7) connected and communicated between the functional filter (6) and the second precision filter (11), and an aeration pipe (8) arranged in the treatment water tank (7) and communicated with an external air source.

5. The water treatment equipment capable of efficiently removing residual hydrogen peroxide in water according to claim 3, characterized in that: The rear-end filtering unit is also provided with an activated carbon filter (10) connected to and in communication between the functional filter (6) and the second precision filter (11).

6. The water treatment equipment capable of efficiently removing residual hydrogen peroxide in water according to claim 1, characterized in that: The filter element in the precision filter adopts a polypropylene melt-blown filter element.

7. The water treatment equipment capable of efficiently removing residual hydrogen peroxide in water according to claim 3, characterized in that: A water inlet unit is also provided, the water inlet unit being provided with a temporary water tank (2) connected and communicating with the first precision filter (4) and an external water supply point through two groups of pipes A respectively, and a water quality detector A (1) is also installed on the pipe A connected between the temporary water tank (2) and the external water supply point, and a booster pump A (3) is also installed on the pipe A connected between the temporary water tank (2) and the first precision filter (4).

8. The water treatment equipment capable of efficiently removing residual hydrogen peroxide in water according to claim 3, characterized in that: A water outlet unit is also provided, the water outlet unit is provided with a main water outlet pipe (12), a water outlet branch pipe A (13) and a water outlet branch pipe B (14) connected together by a three-way valve, the main water outlet pipe (12) is connected to and communicated with the water outlet of the second precision filter (11), and a water quality detector B (15) is also installed on the main water outlet pipe (12); the water outlet branch pipe A (13) is used to output qualified purified water, and the water outlet branch pipe B (14) is used to output unqualified water.

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