A device for rapidly removing organic matter from saline water

Abstract

This utility model discloses a device for accelerating the removal of organic matter from desalinated water. The device employs catalytic oxidation to effectively remove organic matter from brine, meeting the demand for high-purity brine in ion-exchange membrane electrolysis alkali production. The device includes a reaction tower, external circulation pipe, catalyst metering pump, circulation pump, jet pump, ceramic membrane, ozone generator, aeration device, and tail gas absorption device. An automated control system ensures convenient and accurate operation. The device is designed for ease of operation and maintenance, has broad applicability, and can be extended to various fields such as seawater desalination and industrial wastewater treatment, helping to improve the economic benefits of enterprises and promote technological innovation.

Description

Technical Field

[0001] This utility model relates to the field of industrial water treatment technology, specifically to a device for rapidly removing organic matter from saline water. Background Technology

[0002] In the process of producing alkali via ion-exchange membrane electrolysis, the purification of brine is a crucial step. If organic matter in the brine is not removed or is not removed thoroughly, it will affect electrolysis efficiency and product quality, and may even lead to equipment damage. Therefore, developing a purification process and equipment capable of effectively removing organic matter from brine is of great significance.

[0003] Traditional brine purification methods mainly employ chemical precipitation, filtration, and adsorption. While these methods can remove organic matter to some extent, they also have limitations. For example, chemical precipitation may introduce new impurities, filtration has limited effectiveness in removing dissolved organic matter, and adsorption requires frequent replacement of the adsorbent, resulting in high operating costs.

[0004] In recent years, ozone catalytic oxidation technology has been widely used in water treatment due to its high efficiency and environmental friendliness. Ozone is a strong oxidant that can react with organic matter to produce carbon dioxide and water, thereby purifying water. However, the efficiency of ozone reacting directly with organic matter is not high because the probability of ozone molecules colliding with organic matter is small, and the solubility of ozone in water is limited.

[0005] To improve ozone utilization and organic matter removal efficiency, researchers have proposed introducing catalysts and ceramic membranes into the ozone oxidation process. The catalyst promotes ozone decomposition, generating hydroxyl radicals with higher oxidizing power, enabling them to react more effectively with organic matter. Simultaneously, the use of ceramic membranes increases the reaction contact area and improves the reaction rate.

[0006] Nevertheless, existing technologies still have some limitations, such as the low probability of collision between ozone-generated hydroxyl radicals and trace organic matter in brine, the small amount of ozone-generated hydroxyl radicals, low ozone utilization, and small contact area between ozone, catalyst, and organic matter. These problems limit the performance of existing equipment in removing organic matter, affecting treatment effectiveness and efficiency. Utility Model Content

[0007] To address the technical problems in the prior art, this invention provides an improved refining process equipment. It aims to accelerate the oxidation reaction by increasing the contact area between ozone, catalyst, and organic matter, thereby improving the equipment's performance in removing organic matter, increasing ozone utilization, and thoroughly removing organic matter from brine. By equipping the reaction tower with an external circulation pipe, a catalyst metering pump, a circulation pump, a jet pump for ozone mixing, and a ceramic membrane, this invention effectively solves the problems in the prior art, providing a highly efficient and economical brine refining solution for ion-exchange membrane electrolysis alkali production.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An apparatus for accelerating the removal of organic matter from brine, comprising:

[0010] The reaction tower is used for ozone catalytic oxidation reactions.

[0011] The external circulation pipe is connected to the reaction tower and is used to realize the external circulation of brine in the reaction tower;

[0012] A catalyst metering pump, connected to an external circulation pipe, is used to quantitatively deliver catalyst into the reaction tower.

[0013] A circulation pump, installed on the external circulation pipe, is used to drive the brine to circulate between the reaction tower and the external circulation pipe;

[0014] Ozone generator, used to produce ozone;

[0015] The jet pump is used to draw ozone generated by the ozone generator into the external circulation pipe and mix it with salt water;

[0016] A ceramic membrane, placed inside the reaction tower, is used to enrich hydroxyl radicals generated by the catalyst and ozone, increase the contact area with organic matter in the brine, and promote the oxidation reaction.

[0017] Preferably, the external circulation pipe is also equipped with a valve for controlling the opening and closing of the external circulation pipe.

[0018] Preferably, the bottom of the reaction tower is equipped with an aeration device for uniformly blowing ozone into the brine inside the reaction tower.

[0019] Preferably, the top of the reaction tower is equipped with a tail gas absorption device for absorbing the tail gas generated during the reaction process.

[0020] Preferably, the device further includes a control unit for controlling the operation of the circulating pump, the catalyst metering pump, and the injection pump to achieve automated operation.

[0021] Preferably, the reaction tower is made of titanium.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] This patent, through innovative equipment design, achieves significant improvements in brine purification during ion-exchange membrane electrolysis alkali production. The equipment utilizes a ceramic membrane within the reaction tower to effectively enrich hydroxyl radicals generated by the catalyst and ozone. This not only increases the contact area with organic matter in the brine but also accelerates the oxidation reaction process, thereby improving the removal efficiency of organic matter. Simultaneously, by optimizing the introduction and distribution of ozone, the equipment can utilize ozone more effectively, reducing waste and thus improving ozone utilization rate. These improvements reduce the amount of catalyst and ozone required to treat each cubic meter of water, making the entire treatment process more economical and lowering treatment costs.

[0024] Furthermore, the introduction of an automated control system, through precise control of the circulating pump, catalyst metering pump, and jet pump, improves the operational stability and reliability of the equipment, while also simplifying operation and reducing the need for manual intervention. The tail gas absorption device at the top of the reaction tower helps absorb the tail gas generated during the reaction process, which not only reduces secondary pollution to the environment but also improves operational safety. Through membrane catalytic ozone oxidation, this equipment can effectively reduce the TOC index of the produced water, ensuring that the final product water TOC reaches less than 10 mg / L, meeting the high purity requirements of brine in ion-exchange membrane caustic soda production.

[0025] The equipment is designed with ease of operation and maintenance in mind, reducing operational difficulty and facilitating maintenance. It is highly adaptable, suitable not only for specific brine treatment but also for other similar brine refining applications such as seawater desalination and industrial wastewater treatment, demonstrating a wide range of applicability. By improving organic matter removal efficiency and reducing treatment costs, this equipment makes the entire production process more efficient, contributing to improved economic benefits for enterprises. This patented technical solution provides a new technological approach to the field of brine refining, contributing to the innovation and development of related technologies and possessing promising industrial application prospects. Attached Figure Description

[0026] Figure 1 This is a schematic block diagram of the structure of a device for rapidly dewatering organic matter from salt water according to this utility model;

[0027] Figure 2 This is a flowchart illustrating the workflow of a device for rapidly dewatering organic matter from salt water according to this utility model.

[0028] In the diagram: 1. Reaction tower; 2. External circulation pipe; 3. Catalyst metering pump; 4. Circulation pump; 5. Jet pump; 6. Ceramic membrane; 7. Ozone generator; 8. Aeration device; 9. Tail gas absorption device. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-2 This application provides a detailed description of a device for accelerating the removal of organic matter from desalinated water. The device is designed to effectively remove organic matter from brine through catalytic oxidation to meet the demand for high-purity brine in ion-exchange membrane electrolysis alkali production.

[0031] The equipment includes a reaction tower 1 made of titanium, which possesses excellent corrosion resistance and high-salt environment resistance, enabling the reaction tower 1 to remain stable and durable under harsh operating conditions. The reaction tower 1 contains a ceramic membrane 6 for catalyzing the ozone oxidation process. The ceramic membrane 6 enriches the hydroxyl radicals generated by the catalyst and ozone, thereby increasing the contact area with organic matter in the brine and promoting the oxidation reaction. An external circulation pipe 2 connects to the inlet and outlet of the reaction tower 1, forming a circulation loop, and a circulation pump 4 drives the brine circulation. A catalyst metering pump 3 is connected to the external circulation pipe 2 to meterly deliver catalyst into the reaction tower 1. A jet pump 5 is used to draw ozone into the external circulation pipe 2 to mix with the brine; an ozone generator 7 produces ozone, which is drawn into the external circulation pipe 2 by the jet pump 5. A control device is used to control the operation of the circulation pump 4, catalyst metering pump 3, and jet pump 5 to achieve automated operation.

[0032] An aeration device 8 is installed at the bottom of the reaction tower 1 to evenly bubble ozone into the brine inside the reaction tower 1, ensuring sufficient contact between ozone and brine and improving oxidation efficiency. A tail gas absorption device 9 is installed at the top of the reaction tower 1 to absorb the tail gas generated during the reaction process, reducing secondary pollution to the environment.

[0033] When operating this equipment, the first step is to prepare for startup, including opening the valves on the circulation pipeline of reaction tower 1 and the valves on the catalytic ceramic membrane 6 to ensure smooth water flow. At the same time, the ozone inlet valve is closed to prevent ozone from entering the system before circulation is started. Next, the circulation pump 4 is started to circulate the brine between reaction tower 1 and external circulation pipe 2 for a certain period of time to ensure uniform distribution of brine in the system. Then, the catalyst metering pump 3 is started to quantitatively deliver catalyst into reaction tower 1 to provide conditions for subsequent catalytic oxidation reactions. Subsequently, the ozone inlet valve is opened, the ozone generator 7 is started, and the ozone is drawn into the external circulation pipe 2 by the jet pump 5, mixed with the brine, and then enters reaction tower 1.

[0034] Inside reaction tower 1, ceramic membrane 6 enriches hydroxyl radicals generated by the catalyst and ozone, which then react with organic matter in the brine to decompose it. After treatment, the TOC index of the brine is measured to confirm whether the organic matter removal meets the standard. If it does not meet the standard, process parameters such as catalyst dosage and ozone concentration can be adjusted as needed, and the above steps can be repeated. The circulating pump 4, catalyst metering pump 3, and jet pump 5 are automatically controlled by a control device, improving the convenience and accuracy of operation.

[0035] Through the above-described embodiments, this patent achieves beneficial effects such as improving organic matter removal efficiency, increasing ozone utilization, reducing treatment costs, enhancing equipment stability, and improving product water quality. The equipment is designed with ease of operation and maintenance in mind, reducing operational difficulty and facilitating equipment maintenance and upkeep.

[0036] This equipment is highly adaptable, suitable not only for specific brine treatment but also for other similar brine refining applications, such as seawater desalination and industrial wastewater treatment, demonstrating a wide range of applications. By improving the removal efficiency of organic matter and reducing treatment costs, this equipment makes the entire production process more efficient, contributing to improved economic benefits for enterprises. The technical solution of this patent provides a new technological approach for the field of brine refining, helping to promote innovation and development in related technologies and possessing promising industrial application prospects. Note: The above components and their working principles are existing technologies and will not be elaborated upon here.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for rapid removal of organic matter from salt water, characterized by, include: The reaction tower (1) is used for ozone catalytic oxidation reaction; The external circulation pipe (2) is connected to the reaction tower (1) and is used to realize the external circulation of brine in the reaction tower; A catalyst metering pump (3) is connected to an external circulation pipe (2) and is used to quantitatively deliver catalyst into the reaction tower (1); A circulation pump (4) is installed on the external circulation pipe (2) to drive the brine to circulate between the reaction tower (1) and the external circulation pipe (2); Ozone generator (7), used to generate ozone; The jet pump (5) is used to draw ozone generated by the ozone generator into the external circulation pipe (2) and mix it with salt water; A ceramic membrane (6) is placed inside the reaction tower (1) to enrich the hydroxyl radicals generated by the catalyst and ozone, increase the contact area with organic matter in the brine, and promote the oxidation reaction.

2. The apparatus for rapid removal of organic substances from salt water according to claim 1, characterized in that, The external circulation pipe (2) is also equipped with a valve for controlling the opening and closing of the external circulation pipe (2).

3. The apparatus for removing organic matter from salt water quickly according to claim 1, wherein The bottom of the reaction tower (1) is equipped with an aeration device (8) for uniformly blowing ozone into the brine inside the reaction tower.

4. The apparatus for removing organic matter from salt water quickly according to claim 1, wherein The top of the reaction tower (1) is equipped with a tail gas absorption device (9) for absorbing the tail gas generated during the reaction process.

5. The apparatus for removing organic matter from salt water quickly according to claim 1, wherein The equipment also includes a control device for controlling the operation of the circulating pump (4), the catalyst metering pump (3) and the jet pump (5) to achieve automated operation.

6. The apparatus for removing organic matter from salt water quickly according to claim 1, wherein The reaction tower (1) is made of titanium.

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