CN-122006305-A - Multi-medium filtration-based water turbidity reducing process simulation optimization device and method

CN122006305ACN 122006305 ACN122006305 ACN 122006305ACN-122006305-A

Abstract

The invention relates to a multi-medium filtering-based water turbidity reducing process simulation optimizing device and method, wherein the device comprises a cross-shaped organic glass groove body, a first organic glass groove component, a second organic glass groove component and a third organic glass groove component, wherein the first organic glass groove component, the second organic glass groove component and the third organic glass groove component are sequentially bonded from left to right; two parallel water permeable baffles are inserted into the second organic glass trough component to divide the inner space into a left water trough, a middle filtering trough and a right water trough from left to right in sequence, the front water, the filtering dam and the rear water in the reservoir are respectively simulated, a plurality of wire grid meshes are vertically inserted into the middle filtering trough, a turbid water preparation component comprises a stirrer, a lifting table and a turbid water preparation barrel, a turbid water inlet and outlet component comprises a water inlet module and a water outlet module, and a turbid water monitoring component comprises a water sample acquisition module, a turbidity detection module and a photographic recording module. Compared with the prior art, the invention has the advantages of flexible structure, convenient operation, improved test efficiency, comprehensive monitoring means and strong universality.

Inventors

CAI YI
HUANG ANJUN
He tiange
XIE JIALE
Xing Jingwen
Jiang Danlin

Assignees

同济大学

Dates

Publication Date: 20260512
Application Date: 20260408

Claims (10)

1. The utility model provides a water body turbidity reducing process simulation optimizing device based on multi-media filtration which characterized in that includes: The cross-shaped organic glass tank body comprises a first organic glass tank component (1), a second organic glass tank component (2) and a third organic glass tank component (3) which are sequentially glued from left to right, and respectively simulate an inflow river channel, a reservoir and an outflow river channel, wherein two parallel permeable baffles (7) are inserted into the second organic glass tank component (2) to sequentially divide an inner space into a left-end water tank, a middle filter tank and a right-end water tank from left to right, and respectively simulate a dam front water body, a filter dam and a dam rear water body in the reservoir; The turbid water preparation assembly comprises a stirrer (14), a lifting table (15) and a turbid water preparation barrel (16), wherein the stirrer (14) is arranged on the lifting table (15), and the turbid water preparation barrel (16) is arranged on the table top of the lifting table (15); the turbid water inlet and outlet assembly comprises an inlet module and a drainage module, wherein the inlet module is used for connecting the turbid water preparing barrel (16) with a water inlet (4) formed in the top of the left side panel of the cross-shaped organic glass tank body, and the drainage module is connected with a water outlet I (10) formed in the bottom of the right side panel of the cross-shaped organic glass tank body; The turbid water monitoring assembly comprises a water sample acquisition module, a turbidity detection module and a photographic recording module.
2. The multi-medium filtering-based water turbidity reducing process simulation optimizing device is characterized in that two pairs of clamping grooves (5) are respectively formed in three positions on the left side, the middle part and the right side on the inner walls of the front panel and the rear panel of the second organic glass groove component (2) and are used for vertically inserting and fixing two water permeable baffles (7), the middle filtering groove is formed by encircling the two water permeable baffles (7) and the front panel and the rear panel of the second organic glass groove component (2), and the positions of the water permeable baffles (7) in the clamping grooves (5) are changed to adjust the layout of the middle filtering groove in the device.
3. The multi-medium filtering-based water turbidity reducing process simulation optimizing device according to claim 1, wherein the water permeable partition plate (7) is a hollow organic glass plate, a fine mesh steel wire mesh is covered on the outer surface of the water permeable partition plate, and the fine mesh steel wire mesh is fixed with the hollow organic glass plate through a rolling belt.
4. The multi-medium filtering-based water turbidity reducing process simulation optimizing device according to claim 1, wherein the steel wire grid mesh (8) is a covered stainless steel grid, the covered stainless steel grid is fixed through a plurality of acrylic linear clamps (9), and the linear clamps (9) are adhered to the bottom panel and the front and rear panels of the second organic glass groove component (2) through nano double faced adhesive tape.
5. The multi-medium filtering-based water turbidity reducing process simulation optimizing device is characterized in that the water inlet module comprises a peristaltic pump (13) and a water inlet hose (11), two ends of the water inlet hose (11) are respectively connected with a water outlet II (17) of the turbid water preparation barrel (16) and a water inlet (4) formed in the top of a left side panel of the cross-shaped organic glass tank body, and the peristaltic pump (13) is used for controlling water flow in the water inlet hose (11); the drainage module comprises a drainage hose (12) and a drainage box (18), wherein two ends of the drainage hose (12) are respectively connected with a first water outlet (10) formed in the bottom of the right side panel of the cross-shaped organic glass tank body and the drainage box (18).
6. The multi-medium filtering-based water turbidity reducing process simulation optimizing device is characterized in that the stirrer (14) is arranged on a supporting arm of a lifting table (15), the supporting arm has a vertical height adjusting function, a detachable fixed connection is formed between the supporting arm and the supporting arm through a rotating nut after the supporting arm is adjusted in place, the turbid water preparation barrel (16) is arranged on a table top of the lifting table (15), and a water outlet II (17) with a valve is arranged at the bottom of the barrel wall of the turbid water preparation barrel (16).
7. The multi-medium filtration-based water turbidity reducing process simulation optimizing device according to claim 1, wherein the cross sections of the first organic glass tank component (1), the second organic glass tank component (2) and the third organic glass tank component (3) are concave.
8. The multi-medium filtering-based water turbidity reducing process simulation optimizing device according to claim 1, wherein the water sample collecting module comprises a plurality of syringe water collectors (19) with thick openings and scales, and the syringe water collectors are used for extracting water samples from the left side and the right side of a multi-cavity filtering structure arranged in the cross-shaped organic glass tank body; The turbidity detection module comprises a turbidity meter (20) and a detection standard bottle (21), wherein the detection standard bottle (21) is used for containing a water sample collected by the syringe water sampler (19) and is placed in the turbidity meter (20) for turbidity measurement; The photographic recording module comprises a plurality of transparent graduated scales (6), a camera (22) and a tripod (23) which are posted on the front panel of the second organic glass groove component (2), wherein the camera (22) is erected right above the cross-shaped organic glass groove body and is used for shooting and recording the turbidity reducing process.
9. A method for simulating and optimizing a process of reducing turbidity of a water body based on multi-medium filtration using the device according to any one of claims 1 to 8, comprising the steps of: S1, laying a filter material groove and filling a filter material; s2, preparing turbid water; s3, water inlet and drainage control; s4, measuring turbid water sampling and monitoring a turbidity reducing process; s5, data processing and analysis, wherein the data processing and analysis comprises turbidity reduction rate calculation and contribution analysis, water level difference curve drawing and water permeability evaluation, turbidity critical point identification and turbidity reduction life cycle determination, and multi-condition comparison and optimization design.
10. The method for simulating and optimizing a turbid water body reduction process based on multi-medium filtration according to claim 9, wherein the preparing turbid water in step S2 comprises: S21, preparing a plurality of groups of turbid water with sand content, measuring turbidity, and establishing a relation between the turbidity and the sand content according to the result; S22, according to the relation between the turbidity and the sand content, converting the target turbidity set in the test into the prepared sand content, calculating and weighing water and clay according to the calculated sand content, adding the water and clay into a turbid water preparation barrel (16), and stirring by a stirrer (14) to uniformly suspend soil particles to form test turbid water.

Description

Multi-medium filtration-based water turbidity reducing process simulation optimization device and method Technical Field The invention relates to the technical field of water treatment, in particular to a water turbidity reducing process simulation optimizing device and method based on multi-medium filtration. Background The lake and reservoir serve as key water resource storage and ecological regulation units, and the water clarity of the lake and reservoir directly relates to regional water safety and ecological health. Currently, the problem of turbidity rise of lake and reservoir water bodies is commonly faced, and the root cause of the problem is closely related to human activities. Unreasonable land utilization modes, such as excessive reclamation of sloping fields, vegetation destruction and the like, seriously aggravate the water and soil loss process of the river basin, cause a large amount of sediment to be continuously input into a river and lake system along with surface runoff, and become a main exogenous source for driving the turbidity of the water body to rise. In order to solve the problem of water turbidity caused by sediment input, the prior art means mainly comprises three categories of engineering, chemistry and ecology, and can be divided into in-situ treatment and ex-situ treatment according to implementation sites. The filter dam is used as a typical in-situ engineering measure, and cuts off sediment in water through physical interception and filtration, so that the filter dam has the advantages of strong applicability and wide application range. The core of the turbidity reducing effect depends on the design optimization of the dam structure, and is limited by multiple factors, namely the characteristics of filter materials including material types, grain size grading and combination modes, the factors can directly influence the sand interception efficiency and the sewage receiving capacity through the effects of adsorption, screening and the like, and the flow state and interception efficiency of water and sand passing through the dam are determined by the dam structure and the layout environment, such as the structure of a filter layer of the dam, the layout position, the flow velocity of water flow and the like. Because the natural lake and reservoir environment conditions are complex, the field test cost is high and the conditions are uncontrollable, developing an indoor physical model test becomes an important means for researching the performance of the filtering dam and optimizing the design parameters of the filtering dam. However, the existing test device for researching the filtering dam has the common limitations that the structure is integrated and immobilized, the layout of the filtering dam at different positions is difficult to flexibly simulate, the modularization degree of a filtering material groove is low, the flow of replacing and combining the filtering material is complex, the whole device is inconvenient to assemble and disassemble, and the preparation period of a multi-station comparison test is long and the repeatability is poor. These deficiencies severely restrict the development of systematic studies on filter material optimization, dam site and structure optimization, hydraulic condition influence and the like. Therefore, a novel indoor test simulation device which is highly flexible in structure, modularized and easy to disassemble, assemble and recombine is developed, and the novel indoor test simulation device has a definite technical purpose and great significance. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide the water turbidity reducing process simulation optimizing device and method based on multi-medium filtration, which are flexible in structure, convenient and fast to operate, capable of remarkably improving test efficiency, comprehensive in monitoring means, multidimensional in evaluation system, capable of ensuring reliable data, remarkable in cost benefit and strong in platform universality. The aim of the invention can be achieved by the following technical scheme: The invention aims to construct an experimental platform which can be precisely controlled and repeatedly compared so as to efficiently simulate the turbidity reducing process of the filtering dam under the working conditions of different filter material combinations, dam body structures, positions, water flow conditions and the like, thereby providing direct and reliable experimental data and theoretical support for revealing the inherent mechanism and establishing the optimization design criteria, and finally promoting the efficient and scientific application of the filtering dam technology in the treatment of turbid water in lakes and reservoirs. The invention provides a water body turbidity reducing process simulation optimizing device based on multi-medium filtration, which comprises: The cross-shaped organic glass tank body