Waste water regeneration treatment device for organic sodium sulfonate production

Abstract

The utility model discloses a wastewater regeneration treatment device for organic sodium sulfonate production, which relates to the technical field of wastewater treatment and comprises a pretreatment tank, a water outlet of a multi-medium filter is fixedly communicated with an ultrafiltration device, and a water outlet of the ultrafiltration device is fixedly communicated with an electrodialysis device. One side of the electrodialysis device is respectively provided with a fresh water pipe and a concentrated water pipe, one end of the fresh water pipe is fixedly communicated with a reverse osmosis device, the surface of the reverse osmosis device is provided with a reverse osmosis fresh water outlet, one end of the concentrated water pipe is fixedly communicated with an evaporation device, and the evaporation device is provided with a discharge port. And besides that alkali is added into the pretreatment tank to adjust the pH value, no other dangerous chemical substances are introduced in the production process, so that the stability of salt balance in water is ensured, the equipment basically realizes full automation, is safe and reliable, and the safety of field staff is ensured. And compared with a traditional treatment method, the wastewater discharge amount is greatly reduced, the high-salinity wastewater treatment cost of enterprises is reduced, and the method is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment production technology, specifically to a wastewater regeneration treatment device for the production of organic sodium sulfonate. Background Technology

[0002] Sulfonic acid, with the general formula R-SO3H, where R is a hydrocarbon group. The sulfonic acid group is a strongly water-soluble, strongly acidic group; all sulfonic acids are water-soluble, strongly acidic compounds. Sulfonic acid can be produced by the sulfonation of aromatic hydrocarbons or the oxidation of thiols to generate sulfonates, which are then acid-treated to obtain sulfonic acid. Wastewater is generated during the production of organic sodium sulfonates.

[0003] Ion exchange resins are finding increasingly wider applications, with widespread use in machinery and electronics, metallurgy, chemical industry, textiles, synthetic fibers, food, pharmaceuticals, transportation, national defense, and scientific research, resulting in substantial demand. However, after a period of use, ion exchange resins require regeneration using acids and alkalis. This regeneration process generates acidic or alkaline wastewater containing large amounts of neutral salts and excess acid or alkali. Neutralizing this large amount of regeneration wastewater to a pH of around 7.0, which has a low buffering capacity, for proper discharge presents numerous challenges, and the resulting precipitates are extremely difficult to filter and dehydrate. Therefore, the discharge of wastewater generated during ion exchange resin regeneration poses a significant environmental pollution problem. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a wastewater regeneration treatment device for the production of organic sodium sulfonate, which solves the problems of being unable to achieve zero discharge, incomplete treatment, and some methods having requirements on the quality of the regenerated wastewater, making them not entirely applicable.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wastewater regeneration treatment device for the production of organic sodium sulfonate, comprising: a pretreatment tank, a water supply pipe fixedly connected to the surface of the pretreatment tank, a multi-media filter fixedly connected to one end of the water supply pipe, an ultrafiltration device fixedly connected to the outlet of the multi-media filter, an electrodialysis device fixedly connected to the outlet of the ultrafiltration device, a freshwater pipe and a concentrated water pipe respectively provided on one side of the electrodialysis device, a reverse osmosis device fixedly connected to one end of the freshwater pipe, a reverse osmosis freshwater outlet provided on the surface of the reverse osmosis device, and an evaporation device fixedly connected to one end of the concentrated water pipe, with a discharge port provided on the evaporation device.

[0008] Preferably, a booster pump is fixedly connected to the surface of the pretreatment tank, the inlet of the booster pump is fixedly connected to the pretreatment tank, and the outlet of the booster pump is fixedly connected to the water supply pipe.

[0009] Preferably, the reverse osmosis device is equipped with a return water pipe, one end of which is fixedly connected to the electrodialysis device.

[0010] Preferably, a reverse valve is fixedly connected to the return water pipe.

[0011] Preferably, a mounting frame is fixedly connected to the top of the pretreatment tank, a stirring motor is fixedly installed at the center of the top of the mounting frame, a stirring blade is fixedly connected to the output shaft end of the stirring motor, and a pH meter is installed inside the pretreatment tank.

[0012] Preferably, the multi-media filter is configured as a sand filter, and the ultrafiltration device is equipped with a PVDF ultrafiltration membrane.

[0013] Preferably, the reverse osmosis device is equipped with an anti-fouling membrane core, which is a polyamide composite membrane core.

[0014] Beneficial effects

[0015] This invention provides a wastewater regeneration treatment device for the production of organic sodium sulfonate, which has at least the following advantages compared with the prior art:

[0016] Aside from adding alkali to the pretreatment tank to adjust the pH, no other hazardous chemicals are introduced during the production process, ensuring a stable salt balance in the water. The equipment is essentially fully automated, safe, and reliable, guaranteeing the safety of on-site personnel. Compared to traditional treatment methods, it significantly reduces wastewater discharge, lowers the cost for companies treating high-salt wastewater, and is easy to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the booster water pump and water delivery pipe of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the pretreatment tank of this utility model.

[0020] In the diagram: 1. Pretreatment tank; 2. Booster pump; 3. Water supply pipe; 4. Multi-media filter; 5. Ultrafiltration unit; 6. Electrodialysis unit; 7. Freshwater pipe; 8. Reverse osmosis unit; 9. Reverse osmosis freshwater outlet; 10. Concentrate pipe; 11. Evaporator; 12. Discharge port; 13. Return water pipe; 14. Reverse valve; 15. Mounting frame; 16. Agitator motor; 17. Agitator blades; 18. pH meter. Detailed Implementation

[0021] 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.

[0022] Example 1:

[0023] Please see Figure 1-3 This utility model provides a technical solution: a pretreatment tank 1, a water supply pipe 3 fixedly connected to the surface of the pretreatment tank 1, a multi-media filter 4 fixedly connected to one end of the water supply pipe 3, an ultrafiltration device 5 fixedly connected to the outlet of the multi-media filter 4, an electrodialysis device 6 fixedly connected to the outlet of the ultrafiltration device 5, a fresh water pipe 7 and a concentrated water pipe 10 respectively provided on one side of the electrodialysis device 6, a reverse osmosis device 8 fixedly connected to one end of the fresh water pipe 7, a reverse osmosis fresh water outlet 9 provided on the surface of the reverse osmosis device 8, and an evaporation device 11 fixedly connected to one end of the concentrated water pipe 10, with a discharge port 12 provided on the evaporation device 11.

[0024] Analysis of the above: Wastewater from the production of organic sodium sulfonate is fed into pretreatment tank 1, where alkali is added to adjust the pH value. Neutral wastewater is then pumped through booster pump 2 and water pipe 3 into multi-media filter 4 for filtration, removing bacteria, suspended solids, colloids, and other impurities. Ultrafiltration unit 5 removes bacteria / large organic molecules and some flocculants from the wastewater, which then enters electrodialysis unit 6 for desalination. The electrodialysis desalination water is further concentrated in reverse osmosis unit 8, while the concentrated reverse osmosis water is returned to electrodialysis unit 6 for further desalination. The reverse osmosis desalination water can be reused in other processes.

[0025] Example 2:

[0026] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: a booster pump 2 is fixedly connected to the surface of the pretreatment tank 1, the inlet of the booster pump 2 is fixedly connected to the pretreatment tank 1, and the outlet of the booster pump 2 is fixedly connected to the water supply pipe 3.

[0027] Analysis of the above content: The pressure of the water is maintained by the booster pump 2, thereby improving the filtration effect.

[0028] Example 3:

[0029] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: a return water pipe 13 is provided on the reverse osmosis device 8, and one end of the return water pipe 13 is fixedly connected to the electrodialysis device 6.

[0030] Analysis of the above content: Setting up a return water pipe 13 to send the reverse osmosis concentrate back into the electrodialysis unit 6 for continuous desalination improves the desalination effect.

[0031] Example 4:

[0032] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: a reverse valve 14 is fixedly connected to the return water pipe 13.

[0033] Analysis of the above: Setting up reverse valve 14 prevents the backflow of reverse osmosis concentrate.

[0034] Example 5:

[0035] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: a mounting frame 15 is fixedly connected to the top of the pretreatment tank 1, a stirring motor 16 is fixedly installed at the center of the top of the mounting frame 15, a stirring blade 17 is fixedly connected to the output shaft end of the stirring motor 16, and a pH detector 18 is installed inside the pretreatment tank 1.

[0036] Analysis of the above content: The stirring motor 16 is fixedly installed by the mounting bracket 15. The stirring motor 16 drives the stirring blade 17 to rotate. The rotation of the stirring blade 17 drives the water in the pretreatment tank 1 to flow, thereby increasing the speed of acid-base neutralization. A pH meter 18 is set up to detect the pH value of the water in the pretreatment tank 1.

[0037] Example 6:

[0038] Please see Figure 1-3 This utility model provides a technical solution based on Embodiment 1: the multi-media filter 4 is configured as a sand filter, and the ultrafiltration device 5 is equipped with a PVDF ultrafiltration membrane. The reverse osmosis device 8 is equipped with an anti-fouling membrane core, which is a polyamide composite membrane core.

[0039] Analysis of the above: The multi-media filter 4 filters the wastewater, removing bacteria, suspended solids, colloids, and other impurities. The ultrafiltration device 5 removes bacteria / large molecular organic matter and some flocculants from the wastewater.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0041] 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. A wastewater regeneration and treatment device for the production of organic sodium sulfonate, characterized in that, include: A pretreatment tank (1) is fixedly connected to a water supply pipe (3) on its surface. One end of the water supply pipe (3) is fixedly connected to a multi-media filter (4). The outlet of the multi-media filter (4) is fixedly connected to an ultrafiltration device (5). The outlet of the ultrafiltration device (5) is fixedly connected to an electrodialysis device (6). A fresh water pipe (7) and a concentrated water pipe (10) are respectively provided on one side of the electrodialysis device (6). One end of the fresh water pipe (7) is fixedly connected to a reverse osmosis device (8). A reverse osmosis fresh water outlet (9) is provided on the surface of the reverse osmosis device (8). One end of the concentrated water pipe (10) is fixedly connected to an evaporator (11). A discharge port (12) is provided on the evaporator (11).

2. The wastewater regeneration treatment device for the production of organic sodium sulfonate according to claim 1, characterized in that: The surface of the pretreatment tank (1) is fixedly connected to a booster pump (2), the inlet of the booster pump (2) is fixedly connected to the pretreatment tank (1), and the outlet of the booster pump (2) is fixedly connected to the water supply pipe (3).

3. The wastewater regeneration treatment device for the production of organic sodium sulfonate according to claim 1, characterized in that: The reverse osmosis device (8) is equipped with a return water pipe (13), one end of which is fixedly connected to the electrodialysis device (6).

4. The wastewater regeneration treatment device for the production of organic sodium sulfonate according to claim 3, characterized in that: A reverse valve (14) is fixedly connected to the return water pipe (13).

5. The wastewater regeneration treatment device for the production of organic sodium sulfonate according to claim 1, characterized in that: The pretreatment tank (1) is fixedly connected to the top of the mounting frame (15), and a stirring motor (16) is fixedly installed at the center of the top of the mounting frame (15). A stirring blade (17) is fixedly connected to the output shaft end of the stirring motor (16), and a pH meter (18) is installed inside the pretreatment tank (1).

6. The wastewater regeneration treatment device for the production of organic sodium sulfonate according to claim 1, characterized in that: The multi-media filter (4) is configured as a sand filter, and the ultrafiltration device (5) is equipped with a PVDF ultrafiltration membrane.

7. The wastewater regeneration treatment device for the production of organic sodium sulfonate according to claim 1, characterized in that: The reverse osmosis device (8) is equipped with an anti-fouling membrane core, which is a polyamide composite membrane core.

Images