Multi-filtering device for water treatment and use method of multi-filtering device

Abstract

According to the multi-filtering device for water treatment and the using method thereof, a front screen in the filtering device can preliminarily filter physical substances in sewage, then impurities in the sewage are preliminarily adsorbed through a quartz sand filter material, redox reaction is carried out through a KDF filter material, metal elements in the sewage are adsorbed, and the metal elements in the sewage are separated from the filter material; the compressed activated carbon is used for adsorbing smaller molecular impurities in the treated sewage, and finally the ultraviolet sterilization device is used for sterilizing the sewage to be treated, so that the multi-stage treatment of the sewage can be completed. The filtering mode of the device combines physical filtering, impurity adsorption and electrochemical reaction membrane separation technologies, can cover more impurity types, can treat more types of impurities in a larger range for sewage, and can cover more use scenes.

Description

Technical Field

[0001] This invention relates to the technical field of multiple filtration devices for water treatment, and more particularly to a multiple filtration device for water treatment and its method of use. Background Technology

[0002] With the continuous development of society and economy, industry is also constantly progressing. Factories generate a large amount of wastewater during operation. To prevent wastewater from polluting the environment, it is usually treated through wastewater treatment equipment before being discharged. However, no single filtration technology can perfectly remove all types of pollutants from water. Impurities in water are diverse, varying in size and nature, ranging from visible sediment and rust to tiny bacteria and viruses, and dissolved chemicals and heavy metals. Just as you wouldn't use the same tool to repair a car and a watch, we can't use just one method to deal with all water pollution problems. Therefore, multiple filtration devices are needed for wastewater filtration. For example, the invention patent CN113144702B, a multiple filtration device for urban wastewater treatment and its usage method, effectively solves the problem of insufficient filtration in existing urban wastewater filtration devices on the market. It is an urban wastewater treatment device that can be configured with multiple filtration steps.

[0003] The above devices still have some problems in use. The devices achieve the first, second and third filtration through multiple layers of filter screens. The filtration method is relatively simple. It only filters physical impurities of different sizes through physical means, and it is difficult to remove other types of dirt in sewage. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a multi-stage filtration device for water treatment and its usage method. The device comprises an inlet structure, a water pipe, a primary screening structure, a primary adsorption structure, an adsorption filtration structure, a separation treatment structure, a sterilization structure, and an outlet structure. The primary screening structure is installed on one side of the inlet structure. The primary adsorption structure is arranged on the side of the primary screening structure, and the primary screening structure and the primary adsorption structure are connected via the water pipe. The primary adsorption structure is also arranged on the side of the primary adsorption structure, and the primary adsorption structures are connected to each other via the water pipe. The adsorption filtration structure is arranged on the side of the primary adsorption structure, and the primary adsorption structure and the adsorption filtration structure are connected via the water pipe. The separation treatment structure is arranged on the side of the adsorption filtration structure, and the adsorption filtration structure and the separation treatment structure are connected via the water pipe. The sterilization structure is arranged on the side of the separation treatment structure, and the separation treatment structure and the sterilization structure are connected via the water pipe. The outlet structure is arranged on the side of the sterilization structure, and the sterilization structure and the outlet structure are connected via the water pipe. The water inlet structure consists of an inlet pipe and an inlet valve, with the inlet valve installed on the inlet pipe. The primary screening structure consists of a primary screening tank and a screen. One end of the water inlet pipe is connected to one side of the primary screening tank, and the screen is installed inside the primary screening tank. The primary adsorption structure consists of an adsorption water tank and quartz sand filter media. The adsorption water tank is located on the side of the primary screening water tank, and the primary screening water tank and the adsorption water tank are connected by a water pipe. The adsorption water tank is filled with quartz sand filter media. The adsorption filtration structure consists of a filtration adsorption water tank, KDF filter media, and compressed activated carbon. The filtration adsorption water tank is located on the side of the adsorption water tank, and the two tanks are connected by a water pipe. KDF filter media is placed inside the filtration adsorption water tank, and compressed activated carbon is placed on the side of the KDF filter media. The separation and treatment structure consists of a reverse osmosis treatment water tank and a wastewater pipe. The reverse osmosis treatment water tank is located on the side of the filter adsorption water tank, and the filter adsorption water tank and the reverse osmosis treatment water tank are connected by a water pipe. A wastewater pipe is located on one side of the reverse osmosis treatment water tank. The sterilization structure consists of a sterilization water tank, an ultraviolet sterilization device, and a sterilization control device. The sterilization water tank is located on the side of the reverse osmosis treatment water tank, and the reverse osmosis treatment water tank and the sterilization water tank are connected by a water pipe. The ultraviolet sterilization device is installed inside the sterilization water tank, and the sterilization control device is installed on the top of the sterilization water tank. The ultraviolet sterilization device is connected to the sterilization control device. The water outlet structure consists of a water outlet pipe and a water outlet valve. The water outlet pipe is connected to one side of the disinfection water tank, and the water outlet valve is installed on the water outlet pipe. The treatment method includes the following steps: Step 1: Pre-charge the device internally to maintain the internal pressure between 0.05 and 0.08 MPa; Step 2: Open the inlet valve to allow the wastewater to be filtered to flow into the device through the inlet pipe; Step 3: The wastewater flows into the primary screening tank, passes through the screen, and filters out large particles of impurities; Step 4: The wastewater flows into the adsorption tank through the overflow pipe and is adsorbed by the quartz sand filter media in the adsorption tank; Step 5: The wastewater flows into the filtration adsorption tank through the overflow pipe, undergoes an oxidation-reduction reaction through the KDF filter media, and then undergoes post-adsorption through compressed activated carbon; Step 6: The wastewater flows into the disinfection tank through the overflow pipe, and the ultraviolet sterilization device is activated to perform terminal sterilization of the wastewater; Step 7: Open the outlet valve, and the filtered wastewater is released through the outlet pipe.

[0005] The beneficial effects of this invention are: This invention discloses a multi-stage filtration device for water treatment and its usage method. The device includes a pre-screen for initial filtration of the physical properties of wastewater, followed by initial adsorption of impurities through quartz sand filter media. Next, KDF filter media undergoes an oxidation-reduction reaction to adsorb metal elements from the wastewater. Compressed activated carbon then adsorbs even smaller molecular impurities from the treated wastewater. Finally, an ultraviolet sterilization device performs a final disinfection, completing the multi-stage treatment of wastewater. This device combines physical filtration, impurity adsorption, and electrochemical membrane separation technologies, enabling it to cover a wider range of impurity types and treat a broader range of wastewater impurities, thus covering more application scenarios. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of a multi-stage filtration device for water treatment and its usage method according to the present invention. Figure 2 This is a partial structural schematic diagram of a multi-stage filtration device for water treatment and its usage method according to the present invention; As shown in the figure: 1. Inlet pipe, 2. Inlet valve, 3. Primary screening tank, 4. Screen, 5. Adsorption tank, 6. Quartz sand filter media, 7. Filtration and adsorption tank, 8. KDF filter media, 9. Compressed activated carbon, 10. Reverse osmosis treatment tank, 11. Wastewater pipe, 12. Disinfection tank, 13. Ultraviolet sterilization device, 14. Sterilization control device, 15. Outlet pipe, 16. Outlet valve, 17. Water passage pipe. Detailed Implementation

[0007] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0008] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0009] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other. Example 1

[0010] like Figure 1 As shown, an inlet valve 2 is installed on the inlet pipe 1. One end of the inlet pipe 1 is connected to one side of the primary screening tank 3. A screen 4 is installed inside the primary screening tank 3. An adsorption tank 5 is installed on the side of the primary screening tank 3. The primary screening tank 3 and the adsorption tank 5 are connected by a water pipe 17. Quartz sand filter media 6 is installed inside the adsorption tank 5. A filtration adsorption tank 7 is installed on the side of the adsorption tank 5. The adsorption tank 5 and the filtration adsorption tank 7 are connected by a water pipe 17. KDF filter media 8 is installed inside the filtration adsorption tank 7. Compressed activated carbon 9 is installed on the side of the KDF filter media 8. A reverse osmosis filtration device is installed on the side of the filtration adsorption tank 7. The reverse osmosis treatment water tank 10 is connected to the filter adsorption water tank 7 by a water pipe 17. A wastewater pipe 11 is installed on one side of the reverse osmosis treatment water tank 10. A disinfection water tank 12 is installed on the side of the reverse osmosis treatment water tank 10. The reverse osmosis treatment water tank 10 and the disinfection water tank 12 are connected by a water pipe 17. An ultraviolet sterilization device 13 is installed inside the disinfection water tank 12. A sterilization control device 14 is installed on the top of the disinfection water tank 12. The ultraviolet sterilization device 13 is connected to the sterilization control device 14. An outlet pipe 15 is connected to one side of the disinfection water tank 12. An outlet valve 16 is installed on the outlet pipe 15. Example 2

[0011] When using this invention, the method includes the following steps: Step 1: Pre-charge the device internally to maintain the internal pressure between 0.05 and 0.08 MPa; Step 2: Open the inlet valve 2 to allow the wastewater to be filtered to flow into the device through the inlet pipe; Step 3: The wastewater flows into the primary screening tank 3, passes through the screen 4, and filters out large particles of impurities; Step 4: The wastewater flows into the adsorption tank 5 through the water pipe 17 and is adsorbed by the quartz sand filter media 6 in the adsorption tank 5; Step 5: The wastewater flows into the filtration adsorption tank 7 through the water pipe 17, undergoes an oxidation-reduction reaction through the KDF filter media 8, and then undergoes post-adsorption through the compressed activated carbon 9; Step 6: The wastewater flows into the disinfection tank 12 through the water pipe 17, and the ultraviolet sterilization device 13 is activated to perform terminal sterilization of the wastewater; Step 7: Open the outlet valve 16, and the filtered wastewater is released through the outlet pipe 15.

[0012] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The various components mentioned in this invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A multiple filter device for water treatment, characterized by The utility model discloses a water purifier, which is composed of a water inlet structure, a water passing pipe, a primary screening structure, a primary adsorption structure, an adsorption filtering structure, a separation treatment structure, a sterilization structure and a water outlet structure.

2. The multiple filter device for water treatment according to claim 1, wherein The water inlet structure is composed of a water inlet pipe and a water inlet valve.

3. The multiple filter device for water treatment according to claim 2, wherein The primary screening structure is composed of a primary screening water tank and a screen.

4. The multiple filter device for water treatment according to claim 3, wherein The primary adsorption structure is composed of an adsorption water tank and quartz sand filter material.

5. The multiple filter device for water treatment according to claim 4, wherein The adsorption filtering structure is composed of a filter adsorption water tank, KDF filter material and compressed activated carbon.

6. The multiple filter device for water treatment according to claim 5, wherein The separation treatment structure is composed of a reverse osmosis treatment water tank and a wastewater pipe.

7. The multiple filter device for water treatment according to claim 6, wherein The sterilization structure is composed of a sterilization water tank, an ultraviolet sterilization device and a sterilization control device.

8. The multiple filter device for water treatment according to claim 7, wherein The water outlet structure is composed of a water outlet pipe and a water outlet valve.

9. A filter device for water treatment according to any one of claims 1-8, characterized in that The processing method using the device comprises the following steps: step one, pre-pressurizing the inside of the device to maintain the pressure at 0.05-0.08 MPa; step two, opening the water inlet valve to make the sewage to be filtered flow into the inside of the device through the water inlet pipe; step three, the sewage flows into the primary screen water tank, flows through the screen mesh to filter large-particle impurities; step four, the sewage flows into the adsorption water tank through the water pipe, and is adsorbed by the quartz sand filter material in the adsorption water tank; step five, the sewage flows into the filtration and adsorption water tank through the water pipe, and is subjected to oxidation-reduction reaction by the KDF filter material, and then is subjected to post-adsorption by the compressed activated carbon; step six, the sewage flows into the disinfection water tank through the water pipe, and the ultraviolet sterilization device is started to perform end sterilization on the sewage; and step seven, the water outlet valve is opened, and the filtered sewage is discharged through the water outlet pipe.

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