A kind of quaternary ammonium salt disinfectant production and processing wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment for quaternary ammonium salt disinfectant production and processing, and disclose a kind of wastewater treatment device for quaternary ammonium salt disinfectant production and processing, including main body mechanism and processing mechanism, the main body mechanism inside fixed installation has adjusting pool, grating, agitator, the grating is fixedly installed in the adjusting pool front end, the agitator is fixedly installed in the adjusting pool central portion. This has stable production water quality, device to production raw water depth purification, remove impurities, microorganism and influence production's substance, provide water quality stable water for production. In the disinfectant deployment process, stable water quality ensures raw material proportioning accuracy, guarantees product quality uniformity.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology for the production and processing of quaternary ammonium salt disinfectants, specifically a wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants. Background Technology

[0002] Disinfectants are used to kill pathogenic microorganisms on transmission vectors, rendering them harmless and eliminating them from the human body, thus cutting off the transmission routes of infectious diseases and achieving the goal of controlling infectious diseases. Disinfectants can be classified according to their level of effectiveness into sterilizing agents, high-efficiency disinfectants, medium-efficiency disinfectants, and low-efficiency disinfectants. Sterilizing agents can kill all microorganisms to achieve sterilization requirements, including formaldehyde, glutaraldehyde, ethylene oxide, peracetic acid, hydrogen peroxide, chlorine dioxide, chlorine gas, copper sulfate, quicklime, and ethanol.

[0003] The processing and production of disinfectants generates a certain amount of wastewater, requiring subsequent filtration by wastewater treatment facilities. Common treatment devices have relatively simple structures, relying solely on filter materials for basic filtration, which may leave behind some dust and harmful pollutants, and are inconvenient for subsequent maintenance.

[0004] Existing patent document CN 213077723 U discloses a wastewater treatment method for disinfectant production and processing. The treatment device has a first filter box connected to a second filter box at one end via a conveying pipe. A water pump is installed on the conveying pipe. A water outlet pipe is opened at one end of the second filter box. A partition is welded on the inner wall of the second filter box. A slag removal layer is filled at one end of the partition. Water caps are connected to the other end of the partition in sequence and evenly.

[0005] However, in existing applications, this device cannot perform filtration and sedimentation, and therefore cannot treat wastewater to a certain extent. Utility Model Content

[0006] (a) Technical problems to be solved The purpose of this invention is to provide a wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants, so as to solve the problem mentioned in the background art that the existing devices cannot complete filtration and sedimentation.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a water treatment device for the production and processing of quaternary ammonium salt disinfectants, comprising a main body and a treatment mechanism, wherein an equalization tank, a screen, and a stirrer are fixedly installed inside the main body, a screen is fixedly installed at the front end of the equalization tank, and a stirrer is fixedly installed in the center of the equalization tank; The processing mechanism includes a storage tank, a valve, and an observation window. The storage tank is fixedly installed on the top of the agitator, the valve is fixedly installed between the bottom of the storage tank and the agitator, and an observation window is fixedly installed on the surface of the storage tank.

[0008] Preferably, the main structure further includes a water inlet and a water inlet pipe. The water inlet pipe is fixedly installed at the front end of the regulating tank, the water inlet is fixedly installed at the top end of the water inlet pipe, and a bar is fixedly installed on the surface of the water inlet.

[0009] Preferably, the main body further includes a stirring rod and a stirring paddle, with the stirring rod fixedly mounted on the surface of the stirrer and the stirring paddle fixedly mounted at the tail end of the stirring rod.

[0010] Preferably, the main structure further includes connecting pipes and switches, with several connecting pipes fixedly installed between the various pools, and several switches fixedly installed on the surface of each connecting pipe.

[0011] Preferably, the processing mechanism further includes a reaction tank, with the reaction tank fixedly installed at the rear end of the regulating tank, and an agitator fixedly installed on the surface of the reaction tank.

[0012] Preferably, the processing mechanism further includes a sedimentation tank, and the sedimentation tank is fixedly installed at the rear end of the reaction tank.

[0013] Preferably, the processing mechanism further includes a filter tank and a filter medium, wherein the filter tank is fixedly installed at the rear end of the sedimentation tank, and the filter medium is fixedly installed inside the filter tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. Highly efficient removal of pollutants: Wastewater from the production of quaternary ammonium salt disinfectants has a complex composition, containing a large amount of organic pollutants and salts. This treatment device operates through multiple coordinated processes. In the pretreatment stage, a screen intercepts large particulate impurities, and a regulating tank homogenizes the water quality and quantity. During coagulation and sedimentation, the coagulant causes suspended particles and colloids to aggregate and settle, removing a large amount of insoluble impurities. The filtration stage further intercepts small particles and some organic matter. Advanced treatment (such as activated carbon adsorption and membrane separation) can significantly reduce recalcitrant organic matter and salts. Finally, the disinfection process kills bacteria and viruses, ensuring that the wastewater meets discharge standards and effectively reducing the risk of pollution to surrounding water bodies and soil. Control of characteristic pollutants: The device employs targeted treatment methods for key quaternary ammonium salt compounds in the wastewater. Activated carbon adsorption utilizes its abundant pores and surface functional groups to physically and chemically adsorb quaternary ammonium salt molecules. Membrane separation, based on the principles of membrane pore size sieving and selective permeation, precisely intercepts quaternary ammonium salts, preventing them from entering natural water bodies and avoiding harm to aquatic ecosystems, such as inhibiting the respiration, growth, and reproduction of aquatic organisms. 2. Stabilizes production water quality: The device deeply purifies raw water, removing impurities, microorganisms, and substances that affect production, providing stable water quality for operations. During disinfectant preparation, stable water quality ensures accurate raw material ratios and guarantees product quality uniformity. Large fluctuations in raw water quality can easily clog pipes and affect equipment operation; this device maintains stable production water, reducing equipment failures and downtime for maintenance, ensuring continuous production. Extends equipment lifespan: Purified production water significantly reduces wear and corrosion caused by impurities. In cooling systems, treated water prevents scale buildup in pipes, maintains good heat dissipation, and extends equipment lifespan. For example, a production system worth millions can have its lifespan extended from 5-8 years to 8-10 years after using treated water, reducing equipment replacement costs and improving the company's economic benefits. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the stirrer structure of this utility model; Figure 3 This is a schematic diagram of the observation window structure of this utility model; Figure 4 This is a schematic diagram of the filter tank structure of this utility model. Figure 5 This is a schematic diagram of the stirring paddle structure of this utility model.

[0016] In the diagram: 1. Main structure; 101. Equalization tank; 102. Bar screen; 103. Agitator; 104. Inlet; 105. Inlet pipe; 106. Agitator rod; 107. Agitator paddle; 108. Connecting pipe; 109. Switch; 2. Processing mechanism; 201. Storage tank; 202. Valve; 203. Observation window; 204. Reaction tank; 205. Sedimentation tank; 206. Filter tank; 207. Filter medium. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1 - Figure 5This utility model provides a technical solution: a water treatment device for the production and processing of quaternary ammonium salt disinfectants, including a main body 1 and a treatment mechanism 2. The main body 1 is internally fixedly installed with an equalization tank 101, a grid 102, and a stirrer 103. The front end of the equalization tank 101 is fixedly installed with a grid 102, and the center of the equalization tank 101 is fixedly installed with a stirrer 103. The processing mechanism 2 includes a storage tank 201, a valve 202, and an observation window 203. The storage tank 201 is fixedly installed on the top of the stirrer 103. The valve 202 is fixedly installed between the bottom of the storage tank 201 and the stirrer 103. The observation window 203 is fixedly installed on the surface of the storage tank 201.

[0019] Preferably, the main body 1 further includes a water inlet 104 and a water inlet pipe 105. The water inlet pipe 105 is fixedly installed at the front end of the regulating tank 101, the water inlet 104 is fixedly installed at the top end of the water inlet pipe 105, and a grid 102 is fixedly installed on the surface of the water inlet 104.

[0020] Preferably, the main body 1 further includes a stirring rod 106 and a stirring paddle 107. The stirring rod 106 is fixedly installed on the surface of the stirrer 103, and the stirring paddle 107 is fixedly installed at the tail end of the stirring rod 106.

[0021] Preferably, the main body 1 further includes connecting pipes 108 and switches 109. Several connecting pipes 108 are fixedly installed between the various pools, and several switches 109 are fixedly installed on the surface of each connecting pipe 108.

[0022] Preferably, the processing mechanism 2 further includes a reaction tank 204, the reaction tank 204 is fixedly installed at the rear end of the regulating tank 101, and a stirring paddle 107 is fixedly installed on the surface of the reaction tank 204.

[0023] Preferably, the processing mechanism 2 further includes a sedimentation tank 205, and the sedimentation tank 205 is fixedly installed at the rear end of the reaction tank 204.

[0024] Preferably, the processing mechanism 2 further includes a filter tank 206 and a filter medium 207. The filter tank 206 is fixedly installed at the rear end of the sedimentation tank 205, and the filter medium 207 is fixedly installed inside the filter tank 206.

[0025] Working Principle: The screen 102, located at the inlet 104, consists of a set of parallel metal or plastic bars. Its function is to intercept larger solid impurities in the water, such as branches, plastic fragments, and paper. The spacing of the screen bars 102 is determined by the size of the impurities in the wastewater to be treated, preventing these large particles from entering subsequent treatment units and avoiding damage to equipment or blockage of pipes. The equalization tank 101 is a large storage tank used to regulate the quantity and quality of wastewater. Since the discharge time and volume of wastewater from quaternary ammonium disinfectant production may be uneven, the equalization tank 101 can store wastewater when the flow rate is high and evenly distribute it to subsequent treatment units when the flow rate is low. Simultaneously, the equalization tank 101 also performs preliminary mixing of the wastewater, making the water quality more stable and reducing the impact of water quality fluctuations on subsequent treatment processes. The equalization tank 101 is equipped with a stirrer 103, which thoroughly mixes the components in the wastewater through agitation. The coagulant storage tank 201 stores coagulants such as polyaluminum chloride (PAC) and polyferric sulfate (PFS), which are added to the wastewater according to a specific ratio. For example, a metering pump adds 20-100 grams of coagulant per ton of wastewater. The coagulant's function is to coagulate and flocculate small suspended particles and colloidal substances in the wastewater, forming larger flocs that facilitate subsequent sedimentation and separation. The reaction tank 204 thoroughly mixes and reacts with the coagulant. The reaction tank 204 extends the reaction time of the wastewater and coagulant through water flow, ensuring a more complete coagulation reaction. The reaction time is typically around 15-30 minutes. A stirrer 103, such as a low-speed impeller 107, is installed in the reaction tank 204 to ensure uniform mixing of the wastewater and coagulant, but the stirring speed should not be too fast to avoid damaging the already formed flocs. The sedimentation tank 205 is where the wastewater after the coagulation reaction proceeds for sedimentation and separation. Wastewater flows horizontally within the sedimentation tank, and sludge settled at the bottom is scraped into a sludge hopper by a scraper. The sedimentation time in sedimentation tank 205 is generally 1-3 hours, determined based on the nature of the wastewater and treatment requirements. The purpose is to allow flocs in the wastewater to settle to the bottom, thus achieving preliminary purification of the supernatant. Filter tank 206 is filled with filter media 207, such as quartz sand, anthracite, and activated carbon. The particle size of the quartz sand filter media is generally 0.5-1.2 mm, while the anthracite filter media has a slightly larger particle size of about 1-2 mm. Activated carbon is mainly used to adsorb organic matter and odors from the wastewater. Wastewater flows downwards through filter media 207, which can trap fine suspended particles, incompletely settled flocs, and some organic matter, effectively removing minute impurities and improving effluent quality. The wastewater first passes through bar screen 102 upon entering the system. The bar screen 102 acts like a sieve, using the gaps between its bars to intercept larger solid impurities in the sewage.Because these solid impurities are larger than the bar spacing, they are blocked in front of the bar screen 102 by the water flow, while the wastewater passes through the bar screen 102 and enters the subsequent treatment unit. This physical interception method is simple and effective, preventing large particles from entering pipes and equipment and avoiding blockages and damage. After the wastewater flows into the equalization tank 101, the equalization tank 101 plays a role in regulating the water volume and quality. From a time perspective, it can store wastewater during peak flow periods and release it evenly to the subsequent treatment unit during trough periods, making the wastewater flow relatively stable during the treatment process. From a water quality perspective, the agitator 103 in the equalization tank 101 uses mechanical stirring or aeration to fully mix wastewater of different times and compositions, reducing water quality fluctuations and creating relatively stable influent conditions for subsequent treatment processes. The coagulant storage tank 201 adds coagulants to the wastewater in a certain proportion. The coagulant undergoes hydrolysis and polymerization reactions in the water, producing a large number of positively charged colloidal particles. These colloidal particles interact with tiny suspended particles and colloidal substances in wastewater through processes such as charge neutralization, adsorption bridging, and entrapment. Charge neutralization refers to the mutual cancellation of the positive charge of the coagulant and the negative charge of the suspended particles, causing the particles to lose stability. Adsorption bridging refers to the adsorption of long-chain molecules of the coagulant onto multiple particles, connecting them together. Entrapment refers to the process where, when the flocs formed by the coagulant are large enough, they encapsulate surrounding smaller particles, thereby causing the tiny particles in the wastewater to aggregate and flocculate into larger flocs. In reaction tank 204, the wastewater and coagulant are thoroughly mixed and reacted. The baffled or plug flow design of reaction tank 204 causes the wastewater and coagulant to flow along a specific water flow path, extending the reaction time. During this process, the low-speed agitator 103 ensures uniform mixing of the wastewater and coagulant, but the agitation speed is controlled within a range that will not damage the already formed flocs. In this way, the coagulation reaction can continue, allowing the suspended particles and colloidal substances in the wastewater to better aggregate into larger, easily settled flocs. In sedimentation tank 205, wastewater containing flocs enters and settles using gravity sedimentation, depending on the type of sedimentation tank. In horizontal flow sedimentation tank 205, the wastewater flows horizontally. Because the density of flocs is greater than that of water, they gradually sink to the bottom of the tank under gravity, while the supernatant flows out from the other end. Through the sedimentation process, most of the suspended solids in the wastewater are separated, resulting in preliminary purification of the supernatant. In filtration tank 206, the preliminarily purified wastewater enters. In filtration tank 206, the wastewater flows downwards through filter media 207, such as quartz sand, anthracite, and activated carbon. These filter media 207 have numerous tiny pores between their particles. As wastewater flows through, fine suspended particles, incompletely settled flocs, and some organic matter are trapped in the pores of the filter media 207. For example, the particle size and arrangement of quartz sand filter media form a physical barrier, preventing impurities larger than its pores from passing through.Only water molecules and substances smaller than the filter element's pore size can pass through, thus effectively removing tiny impurities from wastewater and further improving the quality of the effluent.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants, comprising a main body (1) and a treatment mechanism (2), characterized in that: The main body (1) is internally fixedly equipped with an regulating tank (101), a grid (102), and a stirrer (103). The front end of the regulating tank (101) is fixedly equipped with a grid (102), and the center of the regulating tank (101) is fixedly equipped with a stirrer (103). The processing mechanism (2) includes a storage tank (201), a valve (202), and an observation window (203). The storage tank (201) is fixedly installed on the top of the stirrer (103). The valve (202) is fixedly installed between the bottom of the storage tank (201) and the stirrer (103). The observation window (203) is fixedly installed on the surface of the storage tank (201).

2. The wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants according to claim 1, characterized in that: The main structure (1) also includes an inlet (104) and an inlet pipe (105). The inlet pipe (105) is fixedly installed at the front end of the regulating tank (101), and the inlet (104) is fixedly installed at the top end of the inlet pipe (105). A grid (102) is fixedly installed on the surface of the inlet (104).

3. The wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants according to claim 2, characterized in that: The main body (1) also includes a stirring rod (106) and a stirring paddle (107). The stirring rod (106) is fixedly installed on the surface of the stirrer (103), and the stirring paddle (107) is fixedly installed at the tail end of the stirring rod (106).

4. The wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants according to claim 3, characterized in that: The main body (1) also includes connecting pipes (108) and switches (109). Several connecting pipes (108) are fixedly installed between the pools, and several switches (109) are fixedly installed on the surface of each connecting pipe (108).

5. The wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants according to claim 4, characterized in that: The processing mechanism (2) also includes a reaction tank (204), the reaction tank (204) is fixedly installed at the rear end of the regulating tank (101), and a stirring paddle (107) is fixedly installed on the surface of the reaction tank (204).

6. The wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants according to claim 5, characterized in that: The processing mechanism (2) also includes a sedimentation tank (205), and the sedimentation tank (205) is fixedly installed at the rear end of the reaction tank (204).

7. The wastewater treatment device for the production and processing of quaternary ammonium salt disinfectants according to claim 6, characterized in that: The processing mechanism (2) also includes a filter tank (206) and a filter medium (207). The filter tank (206) is fixedly installed at the rear end of the sedimentation tank (205), and the filter medium (207) is fixedly installed inside the filter tank (206).

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