Multistage filtration and purification device for surface waste liquid treatment

By using a multi-stage filtration and purification device, combining pH adjustment, coagulation sedimentation, MBR and ultrafiltration modules, the problem of impurity pollution in surface waste liquid is solved, and a highly efficient waste liquid purification effect is achieved.

CN223950878UActive Publication Date: 2026-02-27SUZHOU WUZHONG SOLID WASTE TREATMENT CO LTD +1
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Patent Information

Application Number
CN202520456061.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-02-27
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

The wastewater generated from surface treatment contains a large number of impurities, and direct discharge will pollute the environment. Existing technologies are difficult to effectively purify it.

Method used

The system employs a multi-stage filtration and purification device, including a pH adjustment module, a coagulation and sedimentation filtration module, an MBR filtration module, and an ultrafiltration module. Through multi-stage filtration, metal ions, small molecule organic matter, and large molecule organic matter are removed, resulting in high-quality wastewater treatment.

Benefits of technology

It achieves efficient purification of surface waste liquid, removes major pollutants, and reduces environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The multi-stage filtering and purifying device for surface waste liquid treatment comprises a surface waste liquid flowing pipe, a PH value adjusting module is arranged on the surface waste liquid flowing pipe and communicated with a coagulating sedimentation filtering module, and the coagulating sedimentation filtering module comprises a coagulating sedimentation tank. A metal ion reaction agent feeding port, a PAC feeding port and a PAM feeding port are formed in the coagulating sedimentation tank to form a metal ion sedimentation filtering execution part, the coagulating sedimentation filtering module is communicated with the MBR filtering module, the MBR filtering module intercepts activated sludge and macromolecular organic matters through an MBR execution body to form an activated sludge and macromolecular organic matter filtering execution part, and the MBR execution part is communicated with the coagulating sedimentation tank. The MBR filtering module is communicated with the ultrafiltration module, and the ultrafiltration module intercepts small-molecular organic matters through an ultrafiltration membrane main body to form a small-molecular organic filtering execution part.
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Description

TECHNICAL FIELD

[0001] The utility model relates to environmental protection technology and its using equipment, specifically, it is a kind of multistage filtration purification device for surface waste liquid treatment. BACKGROUND

[0002] Surface treatment is the wastewater produced by artificially forming a layer on the surface of base material, which is different from the mechanical, physical and chemical properties of base material.The purpose of surface treatment is to meet the requirements of corrosion resistance, wear resistance, decoration or other special functions of products.

[0003] The wastewater produced by surface treatment is called surface wastewater, which contains a large amount of impurities, such as metal ions, small molecule organic matter, activated sludge and macromolecular organic matter, and direct discharge will cause great pollution to the environment.

[0004] Therefore, it is necessary to provide a multistage filtration purification device for surface waste liquid treatment to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a multistage filtration purification device for surface waste liquid treatment.

[0006] Technical scheme is as follows:

[0007] A multistage filtration purification device for surface waste liquid treatment, comprising a surface waste liquid flow pipe, a PH value adjusting module is arranged on the surface waste liquid flow pipe, the PH value adjusting module is communicated with a coagulation and sedimentation filtration module, the coagulation and sedimentation filtration module comprises a coagulation and sedimentation tank, a metal ion reaction reagent feeding port, a PAC feeding port and a PAM feeding port are arranged in the coagulation and sedimentation tank, forming a metal ion sedimentation and filtration execution part, the coagulation and sedimentation filtration module is communicated with an MBR filtration module, the MBR filtration module is used for intercepting activated sludge and macromolecular organic matter through an MBR execution body, forming an activated sludge and macromolecular organic matter filtration execution part, the MBR filtration module is communicated with an ultrafiltration module, the ultrafiltration module is used for intercepting small molecule organic matter through an ultrafiltration membrane body, forming a small molecule organic filtration execution part.

[0008] Further, the ultrafiltration module is communicated with a liquid collecting tank, and the liquid collecting tank is communicated with a water outlet.

[0009] Further, the PH value adjusting module comprises a PH value adjusting powder feeding column, and PH value adjusting powder outlets are uniformly arranged on the PH value adjusting powder feeding column.

[0010] Further, the PH value adjusting powder is NaOH powder.

[0011] Further, PH value sampling modules are arranged at the front end and the rear end of the PH value adjusting module.

[0012] Further, the PH value sampling module is composed of an open-close type sampling detection port.

[0013] Further, the coagulation sedimentation tank is provided with a sedimentation filter plate at the bottom.

[0014] Further, the sedimentation filter plate has an inclination of 15-35°, and the sedimentation filter hole has a diameter of not more than 3 mm.

[0015] Compared with the prior art, the multi-stage filtration and purification device for surface waste liquid treatment is formed by the cooperation of the coagulation sedimentation and filtration module, the MBR filtration module and the ultrafiltration module. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the utility model. DETAILED DESCRIPTION

[0017] Embodiment:

[0018] Please refer to Figure 1 The embodiment shows a multi-stage filtration and purification device for surface waste liquid treatment, which comprises a surface waste liquid flow pipe 1, a PH value adjusting module 2 is arranged on the surface waste liquid flow pipe 1, the PH value adjusting module 2 is communicated with a coagulation sedimentation and filtration module 3, the coagulation sedimentation and filtration module 3 comprises a coagulation sedimentation tank 31, the coagulation sedimentation tank 31 is provided with a metal ion reaction reagent feeding port 32, a PAC feeding port 33 and a PAM feeding port 34, thereby forming a metal ion sedimentation and filtration execution part, the coagulation sedimentation and filtration module 3 is communicated with an MBR filtration module 4, the MBR filtration module 4 is provided with an MBR execution body 41 for intercepting active sludge and macromolecular organic matter, thereby forming an active sludge and macromolecular organic matter filtration execution part, the MBR filtration module 4 is communicated with an ultrafiltration module 5, the ultrafiltration module 5 is provided with an ultrafiltration membrane main body 51 for intercepting small molecular organic matter, thereby forming a small molecular organic matter filtration execution part.

[0019] The ultrafiltration module 5 is communicated with a liquid collecting tank 56, and the liquid collecting tank 6 is communicated with a water outlet 7.

[0020] The PH value adjusting module 2 comprises a PH value adjusting powder feeding column 21, and the PH value adjusting powder feeding column 21 is uniformly provided with PH value adjusting powder outlets.

[0021] The PH value adjusting powder is NaOH powder.

[0022] The PH value adjusting module 3 is provided with a PH value sampling module 8 at the front end and the rear end.

[0023] The PH value sampling module is composed of an open-close type sampling detection port.

[0024] The coagulation sedimentation tank 31 is provided with a sedimentation filter plate 35 at the bottom.

[0025] The sedimentation filter plate 35 has an inclination of 15-35° and a sedimentation filter hole diameter of not more than 3mm.

[0026] Compared with the prior art, the coagulation sedimentation filtration can be made by the person skilled in the art without departing from the creative concept of the utility model, and some modifications and improvements can be made, which belong to the protection scope of the utility model.

Claims

1. A multi-stage filtration and purification apparatus for surface effluent treatment, characterized by: The surface waste liquid flow pipe is provided with a PH value adjusting module, and the PH value adjusting module is communicated with a coagulation sedimentation filtration module.

2. A multi-stage filtration and purification device for surface waste liquid treatment according to claim 1, characterized in that: The coagulation sedimentation filtration module includes a coagulation sedimentation tank, and the coagulation sedimentation tank is provided with a metal ion reaction reagent feeding port, a PAC feeding port and a PAM feeding port, forming a metal ion sedimentation filtration execution part.

3. A multi-stage filtration and purification device for surface waste liquid treatment according to claim 2, characterized in that: The coagulation sedimentation filtration module is communicated with an MBR filtration module.

4. The multi-stage filtration and purification apparatus for surface waste liquid treatment according to claim 3, characterized in that: The MBR filtration module is communicated with an ultrafiltration module.

5. A multi-stage filtration and purification apparatus for surface waste liquid treatment according to claim 4, characterized in that: The ultrafiltration module is communicated with a liquid collecting tank, and the liquid collecting tank is communicated with a water outlet.

6. A multi-stage filtration and purification apparatus for surface waste liquid treatment according to claim 5, characterized in that: The PH value adjusting module includes a PH value adjusting powder feeding column, and the PH value adjusting powder feeding column is uniformly provided with a PH value adjusting powder outlet.

7. A multi-stage filtration and purification apparatus for surface waste liquid treatment according to claim 6, characterized in that: The PH value adjusting powder is NaOH powder.

8. A multi-stage filtration and purification apparatus for surface waste liquid treatment according to claim 7, characterized in that: The PH value adjusting module is provided with a PH value sampling module at the front end and the rear end. The PH value sampling module is composed of an open-close type sampling detection port. The coagulation sedimentation tank is provided with a sedimentation filtration plate at the bottom. The slope of the sedimentation filtration plate is 15-35°, and the diameter of the sedimentation filtration hole is not greater than 3 mm.