A dye wastewater treatment system

Abstract

The utility model relates to wastewater treatment technical field, concretely relates to a dye wastewater treatment system. The color water tank on different production line is communicated on the discharge pipeline through parallel connection, and the discharge pipeline is communicated with the mixed pipeline through the medicament adding pipeline, and the alkali tank and the decoloring agent tank are sequentially communicated from one end close to the discharge pipeline to the other end on the medicament adding pipeline, and the alkali tank and the decoloring agent tank are equipped with the metering pump on the branch line communicated with the medicament adding pipeline. The discharge pipeline is equipped with the drainage pump for conveying the liquid in the color water tank and the flow meter for monitoring the drainage capacity. The utility model discloses aiming at the problem that the wastewater after the dye is replaced cannot be effectively degraded in the sterilization cabinet leak detection color water of the capacity injection workshop, and the system can effectively remove the dye in the wastewater through the addition of alkali and decoloring agent and multistage mixing treatment, restores the color of the wastewater of sewage station total discharge port, biochemical treatment section and sedimentation tank to normal, and ensures that the wastewater reaches the standard discharge.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a dye wastewater treatment system. Background Technology

[0002] In the leak detection process of the sterilization cabinet in the volumetric injection workshop, methylene blue is used. Due to the redox properties of methylene blue, the wastewater becomes colorless after being discharged into the oxidation tank of the sewage treatment plant, and no special decolorization treatment process is required.

[0003] Currently, due to a process change, the leak detection dye used in the sterilization cabinet of the volumetric injection workshop has been changed from potassium methylene blue to carmine red. This dye wastewater cannot be effectively degraded after entering the wastewater treatment plant. The wastewater at the main discharge outlet of the wastewater treatment plant is now a transparent red color, and the wastewater in the biological treatment section and sedimentation tank is also red, affecting normal wastewater discharge. Utility Model Content

[0004] This invention provides a dye wastewater treatment system to solve the technical problem that in the prior art, dye wastewater containing carmine becomes abnormal in quality after passing through the current treatment system and cannot meet the discharge standards.

[0005] To solve the above problems, the present invention provides a dye wastewater treatment system with the following technical solution:

[0006] Color tanks located on different production lines are connected in parallel to the discharge pipeline. The discharge pipeline is connected to the mixing pipeline through the reagent addition pipeline. The reagent addition pipeline is connected to the alkali tank and the decolorizing agent tank in sequence from one end near the discharge pipeline to the other end. Metering pumps are installed on the branches of the alkali tank and the decolorizing agent tank that are connected to the reagent addition pipeline.

[0007] The discharge pipeline is equipped with a drain pump for conveying the liquid in the colored water tank and a flow meter for monitoring the discharge volume.

[0008] Furthermore, the mixing pipeline is equipped with a pipe mixer, the interior of which consists of helical blades that have a turbulent effect.

[0009] Furthermore, a sampling tube is provided on the mixing pipeline, and a manual valve is provided on the sampling tube. The sampling tube is located on the side of the pipeline mixer away from the reagent addition pipeline.

[0010] Furthermore, a regulating valve and a check valve are sequentially installed between the drainage pump and the flow meter on the discharge pipeline.

[0011] Furthermore, both the alkali tank and the decolorizing agent tank are placed on a platform raised above the ground.

[0012] Furthermore, a first Venturi connector is provided between the discharge pipeline and the reagent addition pipeline, and the alkali tank is connected to the side hole at the throat of the first Venturi connector.

[0013] Furthermore, a second Venturi connector is provided between the drug addition pipeline and the mixing pipeline, and the decolorizing agent tank is connected to the side port at the throat of the second Venturi connector.

[0014] The beneficial effects of the dye wastewater treatment system provided by this utility model are:

[0015] This invention addresses the problem of ineffective degradation of wastewater after dye replacement in the sterilization cabinet of a volumetric injection workshop. The system effectively removes dye from wastewater through the addition of alkali and decolorizing agents and multi-stage mixing treatment, restoring the color of wastewater at the main discharge outlet of the sewage treatment plant, the biochemical treatment section, and the sedimentation tank to normal. This solves the problem of wastewater color affecting normal discharge, ensures that wastewater meets discharge standards, and reduces environmental pollution.

[0016] In this invention, metering pumps are installed on the branch lines connecting the alkali tank and decolorizing agent tank to the reagent addition pipeline. This allows for precise control of the amount of alkali and decolorizing agent added, avoiding reagent waste and ensuring stable treatment results. The dosage of reagents can be flexibly adjusted according to different water qualities and discharge requirements.

[0017] This invention features a first Venturi connecting pipe and a second Venturi connector, utilizing the Venturi principle to allow the alkaline solution and decolorizing agent to be better absorbed and mixed with the wastewater. Simultaneously, a pipeline mixer is provided to ensure thorough mixing and reaction of the liquids within the pipeline, thereby improving the efficiency of decolorization and other treatments, shortening treatment time, and reducing treatment costs. Attached Figure Description

[0018] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0019] Figure 1 This is a schematic diagram of a dye wastewater treatment system according to the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Color water tank; 2. Discharge pipeline; 21. Drain pump; 22. Flow meter; 23. Regulating valve; 24. Check valve; 3. Reagent addition pipeline; 31. Alkali tank; 32. Decolorizing agent tank; 33. Metering pump; 4. Mixing pipeline; 41. Mixer; 42. Sampling tube; 421. Manual valve; 5. First Venturi connection pipe; 6. Second Venturi connection pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0024] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0025] An embodiment of a dye wastewater treatment system provided by this utility model:

[0026] like Figure 1 As shown,

[0027] Color water tanks 1, located on different production lines, are connected in parallel to discharge pipeline 2. Discharge pipeline 2 is equipped with a drain pump 21 for conveying the liquid in color water tanks 1 and a flow meter 22 for monitoring the discharge volume. A regulating valve 23 and a check valve 24 are sequentially installed between the drain pump 21 and the flow meter 22 on discharge pipeline 2.

[0028] Among them, the drainage pump 21 ensures that the colored water produced can be discharged smoothly, the flow meter 22 monitors the drainage volume, the regulating valve 23 can adjust the flow rate, and the one-way valve 24 prevents liquid backflow.

[0029] The discharge pipeline 2 is connected to the mixing pipeline 4 via the reagent addition pipeline 3. The reagent addition pipeline 3 is connected to the alkali tank 31 and the decolorizing agent tank 32 in sequence from one end near the discharge pipeline 2 to the other end. Metering pumps 33 are installed on the branches of the alkali tank 31 and the decolorizing agent tank 32 that are connected to the reagent addition pipeline 3.

[0030] In this embodiment, a pipe mixer 41 is installed on the mixing pipe 4. A sampling pipe 42 is installed on the mixing pipe 4, and a manual valve 421 is installed on the sampling pipe 42. The sampling pipe 42 is located on the side of the pipe mixer 41 away from the reagent addition pipe 3. By setting up the sampling pipe 42 and installing the manual valve 421 on the sampling pipe 42, it is convenient to sample and test the treated water quality at any time.

[0031] Furthermore, a pipe mixer 41 is provided on the mixing pipe 4, and the interior of the pipe mixer 41 has spiral blades with turbulence effect.

[0032] Specifically, the pipeline mixer 41 is an existing type of static tubular mixer that achieves thorough mixing of colored water and treatment agents.

[0033] In this embodiment, a first Venturi connector 5 is provided between the discharge pipe 2 and the reagent addition pipe 3, and the alkali tank 31 is connected to the side hole at the throat of the first Venturi connector 5.

[0034] Furthermore, a second venturi connector 6 is provided between the drug addition pipeline 3 and the mixing pipeline 4, and the decolorizing agent tank 32 is connected to the side hole at the throat of the second venturi connector 6.

[0035] By setting up a first Venturi connecting pipe 5 and a second Venturi connector 6, the Venturi principle is used to enable the alkaline solution and decolorizing agent to be better absorbed and initially mixed with the wastewater. The initially mixed solution will enter the pipeline mixer 41 for further mixing, thereby improving the efficiency of decolorization and other treatments, shortening the treatment time, and reducing the treatment cost.

[0036] In this embodiment, the side tube holes are all inclined, and the angle between the axis of the side tube hole and the axis of the first Venturi connecting tube 5 or the second Venturi connector 6 is 45°.

[0037] The first Venturi connector 5 or the second Venturi connector 6 is based on the principle that the fluid velocity increases and the pressure decreases when flowing through the contraction section. When the side pipe is set at a 45° angle, the alkali solution or decolorizing agent can be more smoothly drawn into the main fluid (dye wastewater) under the action of pressure difference. Compared with a vertical setting, the 45° angle can reduce the resistance when the fluid enters the main fluid, making the agent intake process more stable and efficient, ensuring that a sufficient amount of agent enters the main fluid per unit time to meet the treatment requirements.

[0038] Both the alkali tank 31 and the decolorizing agent tank 32 are placed on a platform that is raised above the ground. Specifically, the platform is provided with grooves for placing the alkali tank 31 and the decolorizing agent tank 32 to prevent leakage from spreading to the ground and causing damage to other equipment.

[0039] In practical use, the dye wastewater treatment system of this embodiment starts the drain pump 21 to transport the dye wastewater in the dye tank 1, specifically the red wastewater after replacing carmine, through the discharge pipe 2. The flow meter 22 monitors the discharge volume in real time, and the flow rate can be adjusted according to actual needs through the regulating valve 23.

[0040] Simultaneously, the metering pumps 33 corresponding to the alkali tank 31 and the decolorizing agent tank 32 are activated. When the dye wastewater flows through the first Venturi connection 5, the alkali solution is drawn in and initially mixed with the wastewater, adjusting the pH value of the wastewater, etc., to create conditions for subsequent decolorization treatment. The alkali tank 31 contains a sodium hydroxide solution, and the decolorizing agent tank 32 contains a high-molecular-weight compound polymer.

[0041] The initially mixed liquid continues to flow, and when it passes through the second Venturi connector 6, the decolorizing agent is drawn in and further mixed with the liquid to decolorize the dye in the wastewater.

[0042] The mixed liquid enters the pipeline mixer 41, where it is thoroughly mixed and reacted to improve the decolorization effect and increase the efficiency. During operation, samples can be manually taken through the sampling tube 42 to test the quality of the treated water. Based on the test results, parameters such as the amount of alkali and decolorizing agent added can be adjusted to ensure that the wastewater treatment meets the standards.

[0043] The decolorized water is discharged into the pretreatment tank of the sewage treatment plant, and then discharged after further treatment in the acidification tank and oxidation tank.

[0044] Sampling was conducted to check the effectiveness of the sampling. Samples were taken at point 42 in the sampling tube. After settling, the wastewater was yellowish in color and showed obvious flocculation and stratification. The absorbance of the samples was monitored. After sedimentation in the sedimentation tank, the wastewater entered the wastewater treatment plant. There were no abnormal changes in the water quality of each treatment system, and the wastewater was able to stably meet the discharge standards.

[0045] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0046] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A dye wastewater treatment system, characterized by, Color water tanks (1) located on different production lines are connected in parallel to discharge pipeline (2). Discharge pipeline (2) is connected to mixing pipeline (4) through reagent addition pipeline (3). Alkali tank (31) and decolorizing agent tank (32) are connected sequentially from one end near discharge pipeline (2) to the other end of reagent addition pipeline (3). Metering pumps (33) are provided on the branches of alkali tank (31) and decolorizing agent tank (32) connected to reagent addition pipeline (3). The discharge pipeline (2) is equipped with a drain pump (21) for conveying liquid in the colored water tank (1) and a flow meter (22) for monitoring the discharge volume.

2. A dye wastewater treatment system according to claim 1, wherein The mixing pipeline (4) is equipped with a pipe mixer (41), and the interior of the pipe mixer (41) is a spiral blade with turbulent flow.

3. A dye wastewater treatment system according to claim 1, wherein The mixing pipeline (4) is provided with a sampling tube (42), and the sampling tube (42) is provided with a manual valve (421). The sampling tube (42) is located on the side of the pipeline mixer (41) away from the drug addition pipeline (3).

4. The dye wastewater treatment system according to claim 1, wherein A regulating valve (23) and a check valve (24) are sequentially installed between the drainage pump (21) and the flow meter (22) on the discharge pipeline (2).

5. The dye wastewater treatment system according to claim 1, characterized in that, Both the alkali tank (31) and the decolorizing agent tank (32) are placed on a platform that is elevated above the ground.

6. The dye wastewater treatment system according to claim 1, characterized in that, A first Venturi connector (5) is provided between the discharge pipeline (2) and the reagent addition pipeline (3), and the alkali tank (31) is connected to the side hole at the throat of the first Venturi connector (5).

7. A dye wastewater treatment system according to claim 6, characterized in that, The agent addition pipeline (3) and the mixing pipeline (4) are connected by a second Venturi connector (6), and the decolorizing agent tank (32) is connected to the side hole at the throat of the second Venturi connector (6).

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