Advanced wastewater treatment equipment based on membrane separation technology

Abstract

The utility model discloses advanced wastewater treatment equipment based on a membrane separation technology, which belongs to the technical field of wastewater treatment equipment and comprises a primary filtration treatment structure, a self-cleaning mechanism, an electric control module, a flowmeter module, a first pipeline structure, a booster pump mechanism, a membrane separation treatment structure and a second pipeline structure, a self-cleaning mechanism is arranged in the primary filtering treatment structure, and the electric control module is arranged on the side surface of the primary filtering treatment structure; the first pipeline structure is respectively connected with the primary filtering treatment structure and the flow meter module; the booster pump mechanism is connected with the flowmeter module; the membrane separation treatment structure is arranged on the adjacent side of the booster pump mechanism, and the second pipeline structure is connected to the booster pump mechanism and the membrane separation treatment structure; the electric control module is in control connection with the self-cleaning mechanism and the booster pump mechanism, and the flow meter module is electrically connected with the electric control module. The utility model solves the technical problem of how to optimize the treatment cost of industrial wastewater.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment equipment, and in particular to a wastewater deep treatment equipment based on membrane separation technology. Background Technology

[0002] Membrane separation technology is widely applicable to the advanced treatment of various industrial wastewaters and municipal sewage, including but not limited to textile dyeing and printing wastewater, papermaking wastewater, electroplating wastewater, pharmaceutical wastewater, food processing wastewater, and oily wastewater. These wastewaters typically contain high concentrations of pollutants such as organic matter, inorganic salts, heavy metal ions, and microorganisms.

[0003] Membrane separation processes for advanced wastewater treatment generally include pretreatment, membrane separation, post-treatment, and membrane cleaning. For example, pretreatment removes large particles, suspended solids, and grease from wastewater to protect the membrane modules from fouling and clogging. Membrane separation involves selecting an appropriate membrane type based on the wastewater characteristics to remove dissolved solids, organic matter, and ions. Post-treatment involves necessary adjustments to the effluent, such as pH adjustment and disinfection, to meet reuse or discharge standards. Membrane cleaning involves periodically or as needed cleaning the membrane modules to restore their separation performance.

[0004] Based on this, Chinese patent CN109071291B discloses a wastewater treatment method using membrane separation activated sludge process. The main steps are as follows: When using an impregnated membrane separation unit filled with multiple flexible membranes to perform filtration while simultaneously supplying air, if the membrane filtration pressure difference at the set filtration flow rate exceeds a predetermined value P2 relative to the initial filtration pressure difference P1, membrane filtration is stopped until the filtration pressure difference P3 becomes P3≥P1+20[kPa]. Then, air is supplied at a flow rate or pressure smaller than or negative than during the simultaneous air supply and filtration operation. After the filtration pressure difference P4 reaches P4≤P1+5[kPa], the operation returns to simultaneous air supply and filtration.

[0005] However, the wastewater treatment method using membrane separation activated sludge as disclosed above still suffers from the technical problem of high wastewater treatment costs. Specifically, industrial or domestic wastewater typically contains a large amount of suspended solids, colloids, or impurities; these large suspended solids and other impurities can cause significant damage to the filter membrane and accelerate its failure, resulting in a decreasing flow rate of the filtrate. More specifically, membrane separation technology, as one of the important technologies in modern wastewater treatment, can be subdivided into various types based on differences in membrane materials, pore size, and separation mechanisms. These mainly include microfiltration, MF (molecular filtration), ultrafiltration, UF (ultrafiltration), nanofiltration, NF (non-molecular filtration), reverse osmosis, and RO (reverse osmosis). Microfiltration uses membranes with pore sizes of 0.1-10 micrometers, effectively removing suspended solids, bacteria, and some colloidal substances from water. Ultrafiltration uses membranes with pore sizes between 0.001-0.1 micrometers, further removing tiny suspended solids, colloids, proteins, and some large organic molecules. Nanofiltration falls between ultrafiltration and reverse osmosis, removing multivalent ions and large molecular weight organic matter, and has some retention effect on monovalent salt ions. Reverse osmosis uses semi-permeable membranes with extremely small pore sizes, approximately 0.0001 micrometers, which can remove almost all dissolved solids, organic matter, bacteria, and viruses from water, obtaining high-quality pure water. Although smaller pore sizes result in better filtration, they also lead to higher operating costs; using reverse osmosis membranes for primary filtration of industrial wastewater can be quite wasteful. Utility Model Content

[0006] Therefore, it is necessary to provide a wastewater deep treatment device based on membrane separation technology to address the technical problem of how to optimize the treatment cost of industrial wastewater.

[0007] A wastewater deep treatment device based on membrane separation technology includes: a primary filtration structure, a self-cleaning mechanism, an electrical control module, a flow meter module, a first pipeline structure, a booster pump mechanism, a membrane separation structure, and a second pipeline structure. The self-cleaning mechanism is disposed within the primary filtration structure, and the electrical control module is disposed on the side of the primary filtration structure. The flow meter module is disposed adjacent to the primary filtration structure, and the first pipeline structure connects the primary filtration structure and the flow meter module. The booster pump mechanism is disposed adjacent to the flow meter module and connected to it. The membrane separation structure is disposed adjacent to the booster pump mechanism, and the second pipeline structure connects the booster pump mechanism and the membrane separation structure. The electrical control module controls and connects to both the self-cleaning mechanism and the booster pump mechanism, and the flow meter module is electrically connected to the electrical control module.

[0008] Furthermore, the primary filtration structure includes a primary filter holder, a primary filter barrel, a filter cartridge structure, a primary filter top cover, a primary filter inlet structure, and a self-cleaning outlet valve structure.

[0009] Furthermore, the primary filter housing is mounted on the primary filter holder, the filter cylinder structure is disposed within the primary filter housing, the primary filter top cover is disposed on the top of the primary filter housing, the primary filter inlet structure is disposed on the upper side of the primary filter housing, and the self-cleaning outlet valve structure is disposed at the bottom of the primary filter housing.

[0010] Furthermore, the first pipeline structure is connected to the bottom of the primary filter tank, and the electronic control module is controlled and connected to the self-cleaning outflow valve structure.

[0011] Furthermore, the self-cleaning mechanism includes a reducer base, a reducer structure, a self-cleaning drive motor, a rotating shaft, and several cleaning brush structures.

[0012] Furthermore, the reducer base is disposed on the top cover of the primary filter, the reducer structure is disposed on the reducer base, and the self-cleaning drive motor is drivenly connected to the reducer structure.

[0013] Furthermore, the rotating shaft is movably disposed within the primary filter housing, the reducer structure is driven and connected to the rotating shaft, and a plurality of cleaning brush structures are evenly connected to the rotating shaft, with each cleaning brush structure corresponding to and movably connected to the inner wall of the filter housing structure.

[0014] Furthermore, the membrane separation processing structure includes a membrane separation frame, a membrane separation tank, a membrane separation filter element, a membrane separation inlet structure, and a membrane separation outlet structure.

[0015] Furthermore, the membrane separation tank is mounted on the membrane separation frame, and the membrane separation filter element is disposed within the membrane separation tank.

[0016] Furthermore, the membrane separation inlet structure is connected to the upper part of the membrane separation tank, and the membrane separation outlet structure is located at the lower part of the membrane separation tank; the second pipeline structure is connected to the membrane separation inlet structure.

[0017] In summary, the wastewater deep treatment equipment based on membrane separation technology of this utility model includes a primary filtration structure, a self-cleaning mechanism, an electrical control module, a flow meter module, a first pipeline structure, a booster pump mechanism, a membrane separation structure, and a second pipeline structure. The self-cleaning mechanism is located within the primary filtration structure, and the electrical control module is located on the side of the primary filtration structure. The flow meter module is located adjacent to the primary filtration structure, and the first pipeline structure connects the primary filtration structure and the flow meter module. The booster pump mechanism is located adjacent to the flow meter module and is connected to it. The membrane separation structure is located adjacent to the booster pump mechanism, and the second pipeline structure connects the booster pump mechanism and the membrane separation structure. The electrical control module controls and connects to both the self-cleaning mechanism and the booster pump mechanism, and the flow meter module is electrically connected to the electrical control module. This invention relates to a wastewater deep treatment device based on membrane separation technology. It adds a self-cleaning pre-filter structure before the membrane separation structure to pre-treat the wastewater before further treatment using the membrane separation module, ultimately obtaining the desired purified water. This reduces the filtration pressure on the membrane separation module and extends its service life, thereby optimizing the treatment cost of industrial wastewater. Therefore, this invention solves the technical problem of optimizing the treatment cost of industrial wastewater. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a wastewater deep treatment device based on membrane separation technology according to this utility model;

[0019] Figure 2 This is an exploded structural diagram of another part of the wastewater deep treatment equipment based on membrane separation technology according to this utility model. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Please refer to the following: Figures 1 to 2 This utility model discloses a wastewater deep treatment device based on membrane separation technology, comprising: a primary filtration structure 1, a self-cleaning mechanism 2, an electrical control module 3, a flow meter module 4, a first pipeline structure 5, a booster pump mechanism 6, a membrane separation structure 7, and a second pipeline structure 8. The self-cleaning mechanism 2 is disposed within the primary filtration structure 1, and the electrical control module 3 is disposed on the side of the primary filtration structure 1. The flow meter module 4 is disposed adjacent to the primary filtration structure 1, and the first pipeline structure 5 connects the primary filtration structure 1 and the flow meter module 4. The booster pump mechanism 6 is disposed adjacent to the flow meter module 4 and is connected to the flow meter module 4. The membrane separation structure 7 is disposed adjacent to the booster pump mechanism 6, and the second pipeline structure 8 connects the booster pump mechanism 6 and the membrane separation structure 7. The electrical control module 3 controls and connects the self-cleaning mechanism 2 and the booster pump mechanism 6, and the flow meter module 4 is electrically connected to the electrical control module 3.

[0027] Specifically, when the wastewater deep treatment equipment based on membrane separation technology of this utility model is in operation, the wastewater to be treated first flows into the primary filtration structure 1, where the primary filtration structure 1 pre-treats the introduced wastewater to remove large particles, suspended solids, grease, etc., to protect the membrane module in the subsequent membrane separation structure 7 from contamination and clogging. The pre-treated wastewater then enters the flow meter module 4 through the first pipeline structure 5, where the flow meter module 4 performs flow statistics and monitoring. Next, under the pressurization action of the booster pump mechanism 6, the water flowing into the flow meter module 4 is introduced into the membrane separation structure 7 through the second pipeline structure 8. The membrane separation structure 7 filters and cleans the pre-treated wastewater to a preset cleanliness level. Specifically, the membrane separation treatment structure 7 can select a suitable membrane type for separation based on the characteristics of the wastewater, removing dissolved solids, organic matter, ions, etc. For example, a reverse osmosis membrane module can remove all dissolved solids, organic matter, bacteria, and viruses from the water to obtain high-quality pure water; or an ultrafiltration membrane module can remove tiny suspended solids, colloids, proteins, and some large organic molecules, such as impurities with pore sizes between 0.001 and 0.1 micrometers. The electrical control module 3 can receive the flow information transmitted from the flow meter module 4. When a preset flow threshold is reached, it can control the self-cleaning mechanism 2 to start, cleaning the inner cavity of the primary filtration treatment structure 1. The treated wastewater can be discharged through a preset pipeline. In addition, the flow meter module 4 can also monitor the water flow rate flowing into the membrane separation treatment structure 7 in real time, reminding the user to replace or clean the membrane separation components within the preset threshold range. Moreover, the electrical control module 3 can also count the water flow rate within a preset time interval, and then adaptively change the working mode of the booster pump mechanism 6 to increase or decrease the water pressure. Therefore, the wastewater deep treatment equipment based on membrane separation technology of this utility model adds a pre-filter structure with self-cleaning function before the membrane separation structure to pre-treat the wastewater before using the membrane separation component for deep treatment, and finally obtains the required clean water; it reduces the filtration pressure of the membrane separation component and extends its service life; thus, it can optimize the treatment cost of industrial wastewater.

[0028] Furthermore, the pre-filtration structure 1 includes a pre-filtration stand 101, a pre-filtration barrel 102, a filter cartridge structure 103, a pre-filtration top cover 104, a pre-filtration inlet structure 105, and a self-cleaning outlet valve structure 106. The pre-filtration barrel 102 is mounted on the pre-filtration stand 101, the filter cartridge structure 103 is disposed within the pre-filtration barrel 102, the pre-filtration top cover 104 is disposed on the top of the pre-filtration barrel 102, the pre-filtration inlet structure 105 is disposed on the upper side of the pre-filtration barrel 102, and the self-cleaning outlet valve structure 106 is disposed at the bottom of the pre-filtration barrel 102. The first pipeline structure 5 connects to the bottom of the pre-filtration barrel 102, and the electronic control module 3 is controllably connected to the self-cleaning outlet valve structure 106.

[0029] Specifically, external wastewater flows into the inner cavity of the primary filter tank 102 from the top through the primary filter inlet structure 105, and then into the filtration working range of the filter cartridge structure 103. After the filter cartridge structure 103 performs preliminary treatment on the wastewater, it enters the first pipeline structure 5 from the bottom of the primary filter tank 102. When the flow meter module 4 monitors the flow rate of water flowing from the first pipeline structure 5 into the second pipeline structure 8 and reaches a predetermined flow threshold, the electronic control module 3 controls the self-cleaning mechanism 2 to start and clean the inner wall of the filter cartridge structure 103, clearing the blocked filter holes. Then, the electronic control module 3 controls the self-cleaning outlet valve structure 106 to open, allowing the cleaned treated water to flow out of the primary filter tank 102 through the self-cleaning outlet valve structure 106, preventing wastewater generated in the self-cleaning process from flowing into the next stage of sorting and processing.

[0030] Furthermore, the self-cleaning mechanism 2 includes a reducer base 201, a reducer structure 202, a self-cleaning drive motor 203, a rotating shaft 204, and several cleaning brush structures 205. The reducer base 201 is disposed on the primary filter top cover 104, the reducer structure 202 is disposed on the reducer base 201, and the self-cleaning drive motor 203 is drivenly connected to the reducer structure 202. The rotating shaft 204 is movably disposed within the primary filter housing 102, the reducer structure 202 is drivenly connected to the rotating shaft 204, and several cleaning brush structures 205 are evenly connected to the rotating shaft 204. Each cleaning brush structure 205 is movably connected to the inner wall of the filter housing structure 103.

[0031] Specifically, after the self-cleaning drive motor 203 is powered, it can transmit power to the reducer structure 202, which reduces the speed of the power and increases the torque, and then inputs the power to the rotating shaft 204, so that the rotating shaft 204 drives the cleaning brush structure 205 to clean the inner wall of the filter cartridge structure 103.

[0032] Furthermore, the membrane separation processing structure 7 includes a membrane separation frame 701, a membrane separation tank 702, a membrane separation filter element 703, a membrane separation inlet structure 704, and a membrane separation outlet structure 705; the membrane separation tank 702 is disposed on the membrane separation frame 701, and the membrane separation filter element 703 is disposed within the membrane separation tank 702; the membrane separation inlet structure 704 is connected to the upper part of the membrane separation tank 702, and the membrane separation outlet structure 705 is disposed at the lower part of the membrane separation tank 702; the second pipeline structure 8 is connected to the membrane separation inlet structure 704.

[0033] Specifically, the fluid that flows out after being pressurized at the booster pump mechanism 6 passes through the second pipeline structure 8 and is then introduced into the membrane separation filter element 703 inside the membrane separation tank 702 by the membrane separation inlet structure 704; after being filtered and purified by the filter membrane assembly of the membrane separation filter element 703, it is output by the membrane separation outlet structure 705.

[0034] In summary, the wastewater deep treatment equipment based on membrane separation technology of this utility model includes a primary filtration structure 1, a self-cleaning mechanism 2, an electrical control module 3, a flow meter module 4, a first pipeline structure 5, a booster pump mechanism 6, a membrane separation structure 7, and a second pipeline structure 8. The self-cleaning mechanism 2 is located within the primary filtration structure 1, and the electrical control module 3 is located on the side of the primary filtration structure 1. The flow meter module 4 is located adjacent to the primary filtration structure 1, and the first pipeline structure 5 connects the primary filtration structure 1 and the flow meter module 4. The booster pump mechanism 6 is located adjacent to the flow meter module 4 and is connected to it. The membrane separation structure 7 is located adjacent to the booster pump mechanism 6, and the second pipeline structure 8 connects the booster pump mechanism 6 and the membrane separation structure 7. The electrical control module 3 controls and connects the self-cleaning mechanism 2 and the booster pump mechanism 6, and the flow meter module 4 is electrically connected to the electrical control module 3. This invention relates to a wastewater deep treatment device based on membrane separation technology. It adds a self-cleaning pre-filter structure before the membrane separation structure to pre-treat the wastewater before further treatment using the membrane separation module, ultimately obtaining the desired purified water. This reduces the filtration pressure on the membrane separation module and extends its service life, thereby optimizing the treatment cost of industrial wastewater. Therefore, this invention solves the technical problem of optimizing the treatment cost of industrial wastewater.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wastewater deep treatment device based on membrane separation technology, characterized in that, It includes: The system comprises a primary filtration structure (1), a self-cleaning mechanism (2), an electrical control module (3), a flow meter module (4), a first pipeline structure (5), a booster pump mechanism (6), a membrane separation structure (7), and a second pipeline structure (8). The self-cleaning mechanism (2) is disposed within the primary filtration structure (1), and the electrical control module (3) is disposed on the side of the primary filtration structure (1). The flow meter module (4) is disposed on the adjacent side of the primary filtration structure (1), and the first pipeline structure (5) connects the primary filtration structure (1) and the flow meter module (8). The flow meter module (4) is located on the adjacent side of the flow meter module (4) and is connected to the flow meter module (4); the membrane separation treatment structure (7) is located on the adjacent side of the booster pump mechanism (6) and the second pipeline structure (8) is connected to the booster pump mechanism (6) and the membrane separation treatment structure (7) respectively; the electrical control module (3) controls the self-cleaning mechanism (2) and the booster pump mechanism (6) respectively, and the flow meter module (4) is electrically connected to the electrical control module (3).

2. The wastewater deep treatment equipment based on membrane separation technology according to claim 1, characterized in that: The primary filtration structure (1) includes a primary filter holder (101), a primary filter barrel (102), a filter cartridge structure (103), a primary filter top cover (104), a primary filter inlet structure (105), and a self-cleaning outlet valve structure (106).

3. The wastewater deep treatment equipment based on membrane separation technology according to claim 2, characterized in that: The primary filter housing (102) is mounted on the primary filter holder (101), the filter cylinder structure (103) is disposed in the primary filter housing (102), the primary filter top cover (104) is disposed on the top of the primary filter housing (102), the primary filter inlet structure (105) is disposed on the upper side of the primary filter housing (102), and the self-cleaning outlet valve structure (106) is disposed at the bottom of the primary filter housing (102).

4. The wastewater deep treatment equipment based on membrane separation technology according to claim 3, characterized in that: The first pipeline structure (5) is connected to the bottom of the primary filter tank (102), and the electronic control module (3) is controlled to be connected to the self-cleaning outflow valve structure (106).

5. The wastewater deep treatment equipment based on membrane separation technology according to claim 4, characterized in that: The self-cleaning mechanism (2) has a reducer base (201), a reducer structure (202), a self-cleaning drive motor (203), a rotating shaft (204), and several cleaning brush structures (205).

6. The wastewater deep treatment equipment based on membrane separation technology according to claim 5, characterized in that: The reducer base (201) is disposed on the primary filter top cover (104), the reducer structure (202) is disposed on the reducer base (201), and the self-cleaning drive motor (203) is drivenly connected to the reducer structure (202).

7. The wastewater deep treatment equipment based on membrane separation technology according to claim 6, characterized in that: The rotating shaft (204) is movably disposed in the primary filter barrel (102), the reducer structure (202) is drivenly connected to the rotating shaft (204), and a plurality of cleaning brush structures (205) are evenly connected to the rotating shaft (204), each of the cleaning brush structures (205) being movably connected to the inner wall of the filter cartridge structure (103).

8. The wastewater deep treatment equipment based on membrane separation technology according to claim 7, characterized in that: The membrane separation processing structure (7) includes a membrane separation frame (701), a membrane separation tank (702), a membrane separation filter element (703), a membrane separation inlet structure (704), and a membrane separation outlet structure (705).

9. The wastewater deep treatment equipment based on membrane separation technology according to claim 8, characterized in that: The membrane separation tank (702) is disposed on the membrane separation frame (701), and the membrane separation filter element (703) is disposed in the membrane separation tank (702).

10. A wastewater deep treatment device based on membrane separation technology according to claim 9, characterized in that: The membrane separation inlet structure (704) is connected to the upper part of the membrane separation tank (702), and the membrane separation outlet structure (705) is located at the lower part of the membrane separation tank (702); the second pipeline structure (8) is connected to the membrane separation inlet structure (704).

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