Flocculation-sedimentation experiment system considering biological factor influence

Abstract

The application discloses a flocculation-sedimentation experiment system which can consider the influence of biological factors, wherein, in the flocculation system, the transparent flocculation device is arranged in a flocculation incubator, the flocculation incubator is used for providing controllable water body turbulence, illumination and temperature conditions for a silt flocculation process, and a flocculation body development measuring device is used for measuring the development of the flocculation body in the transparent flocculation device in real time; in the sedimentation system, a transfer device is used for transferring the flocculation body at different development stages in the transparent flocculation device to the transparent sedimentation device for sedimentation, the transparent sedimentation device is arranged in a sedimentation incubator, the sedimentation incubator is used for providing controllable illumination and temperature conditions for the flocculation body sedimentation process, and a sedimentation speed observation device is used for observing the sedimentation speed of the flocculation body in the transparent sedimentation device in real time. The application can consider the influence of biological factors on the silt flocculation and sedimentation process, realize the control of various environmental variables, and accurately simulate the flocculation-sedimentation behavior of the silt population in the silt-containing water body without interference.

Description

Technical Field

[0001] This invention relates to the field of sediment flocculation-sedimentation research technology, and in particular to a flocculation-sedimentation experimental system that can take into account the influence of biological factors. Background Technology

[0002] In natural environments such as rivers, estuaries, and coastal zones, the presence of biological factors such as algae affects the flocculation process of fine-grained sediment. Organisms combine with sediments to form large biomass-sediment aggregates. Biological characteristics, such as organic matter content, directly influence the density and structural differences of the flocs. Furthermore, organic matter content affects floc strength and collision efficiency, average floc size, and floc fragmentation; moreover, organic matter concentration varies with seasonal factors.

[0003] Existing methods for studying sediment flocculation have three main shortcomings: First, most studies on flocculation focus on the physicochemical environment, such as controlling conditions like water turbulence, sediment concentration, pH, and salinity. However, biological factors (such as algae and their secretions) are often two key factors influencing erosion and flocculation processes. These substances can stabilize sediment beds and bind suspended sediment particles together, but their influence is often overlooked. Second, due to the presence of these biological factors, biologically induced sediment flocculation and the settling velocity of flocs are significantly affected by external environmental variables such as light, water turbulence, sediment concentration, and temperature. Current experimental setups for flocculation studies cannot quantitatively simulate different conditions in natural water bodies. Finally, existing methods for studying sediment flocculation struggle to simultaneously achieve real-time monitoring of different stages of floc development and precise measurement of settling velocity during floc settling, which may lead to the neglect of certain important parameters of the flocs. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to propose a flocculation-sedimentation experimental system that takes into account the influence of biological factors, can take into account the influence of biological factors on the flocculation and sedimentation process of sediment, and can control multiple environmental variables to simulate the flocculation-sedimentation behavior of sediment communities in sediment-containing water bodies without interference and with accuracy.

[0005] A flocculation-sedimentation experimental system that can take into account the influence of biological factors according to an embodiment of the present invention includes:

[0006] A flocculation system includes a transparent flocculation device, a flocculation incubation chamber, and a floc development measurement device. The transparent flocculation device is used to hold water containing sediment for flocculation. The transparent flocculation device is placed in the flocculation incubation chamber, which provides controllable water turbulence, light, and temperature conditions for the sediment flocculation process. The floc development measurement device is used to measure the development of flocs within the transparent flocculation device in real time.

[0007] A sedimentation system includes a transfer device, a transparent sedimentation device, a sedimentation incubator, and a sedimentation velocity monitoring device. The transfer device connects the transparent flocculation device and the transparent sedimentation device to transfer flocs at different stages of development within the transparent flocculation device to the transparent sedimentation device for sedimentation. The transparent sedimentation device is located within the sedimentation incubator, which provides controllable light and temperature conditions for the floc sedimentation process. The sedimentation velocity monitoring device is used to monitor the sedimentation velocity of the flocs within the transparent sedimentation device in real time.

[0008] During operation, the transparent flocculation device holds silty water for flocculation. A flocculation incubation tank simulates the water turbulence, temperature, and light conditions of the silty water. A floc development measurement device monitors the floc development in real time. Flocs at different development stages are transferred from the transparent flocculation device to a transparent settling device using a transfer device. A settling incubation tank simulates the temperature and light conditions of the floc settling process. A settling velocity observation device monitors the settling velocity of the flocs in the transparent settling device in real time.

[0009] According to embodiments of the present invention, a flocculation-sedimentation experimental system that can consider the influence of biological factors can add biological factors, such as different algae or biological secretions, to silty water bodies as needed for research, and control the concentration of biological factors. Flocculation simulation experiments are conducted in a transparent flocculation device within a flocculation incubator. Based on different flocculation experimental environmental conditions, different required suspended sediment concentrations of silty water bodies are obtained through different formulations. The flocculation incubator simulates different water turbulence, temperature, and light conditions required for the flocculation experiment, and the development of flocs is monitored in real time using a floc development measurement device. Flocs at different developmental stages are transferred from the transparent flocculation device to a transparent sedimentation device using a transfer device. The sedimentation incubator simulates the temperature and light conditions of the floc sedimentation process, and the sedimentation velocity of the flocs in the transparent sedimentation device is monitored in real time using a sedimentation velocity observation device. Therefore, the flocculation-sedimentation experimental system of this invention, which considers the influence of biological factors, can take into account the impact of biological factors on the flocculation and sedimentation process of sediment. It enables the control of multiple environmental variables and accurately simulates the flocculation-sedimentation behavior of sediment communities in sediment-laden water bodies without interference. It can obtain more realistic flocculation-sedimentation patterns of biological sediment, and has advantages such as high adjustability and accuracy, showing good prospects for widespread application. Furthermore, the flocculation system and sedimentation system of this invention can be used independently. For example, when using the flocculation system alone, the temperature and light conditions in the flocculation incubator can be adjusted to cultivate biological samples (such as algae) separately. For instance, under certain water flow turbulence interference, the growth of biological samples and the secretion of their secretions in the transparent flocculation device can be monitored in real time by controlling environmental factors such as temperature and light.

[0010] In some embodiments, the flocculation incubator includes an insulated box, a stirring device, a heating device, and a light source; the stirring device, heating device, and light source are disposed on the insulated box, wherein the stirring device is used to stir the silt-containing water undergoing flocculation in the transparent flocculation device to simulate water turbulence conditions, the heating device is used to simulate the temperature conditions of the silt flocculation process, and the light source is used to simulate the light conditions of the silt flocculation process.

[0011] In some embodiments, the agitation device includes a speed regulating device and an impeller. The speed regulating device is disposed on the heat preservation box, and the impeller is connected to the speed regulating device and placed inside the transparent flocculation device.

[0012] In some embodiments, the heating device includes a heating tube and a heating control unit. The heating tube is disposed inside the insulation box and located outside the transparent flocculation device. The heating control unit is disposed outside the insulation box and is used to control the heating of the heating tube.

[0013] In some embodiments, the illumination device includes an illumination lamp and an illumination control unit. The illumination lamp is disposed inside the insulation box and outside the transparent flocculation device, and the illumination control unit is disposed outside the insulation box and is used to control the illumination intensity of the illumination lamp.

[0014] In some embodiments, the floc development measuring device includes a transparent container, a circulation pipeline, a first peristaltic pump, and a laser particle size analyzer; the transparent container is connected to the transparent flocculation device through the circulation pipeline; the first peristaltic pump is disposed on the circulation pipeline for allowing the silt-laden water undergoing flocculation in the transparent flocculation device to enter the transparent container and flow back from the transparent container to the transparent flocculation device; the transparent container is mounted on the laser particle size analyzer, which is used to measure the floc development in the transparent container in real time.

[0015] In some embodiments, the laser particle size analyzer uses particle size analysis technology based on the principle of laser forward scattering to analyze the development of flocs.

[0016] In some embodiments, the floc development measuring device further includes a first computer control system, which is connected to the laser particle size analyzer. The laser particle size analyzer synchronously measures the floc development under the first computer control system and transmits the results back to the first computer control system in real time for analysis and storage.

[0017] In some embodiments, the settling velocity observation device includes a light-emitting element, a lens, a camera, and a second computer control system; wherein the light-emitting element and the lens are disposed opposite to each other on the two side walls outside the transparent settling device, the light-emitting element is used to illuminate the water containing flocculants located in front of the light-emitting element inside the transparent settling device, the lens is used to magnify the flocculants so that the camera can clearly photograph the flocculants in real time to obtain the settling velocity of the flocculants, and the second computer control system is connected to the camera to record the data transmitted by the camera.

[0018] In some embodiments, the transfer device includes a transfer pipeline and a second peristaltic pump, the two ends of the transfer pipeline being connected to the transparent flocculation device and the transparent sedimentation device, respectively, and the second peristaltic pump being disposed on the transfer pipeline.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of a flocculation-sedimentation experimental system that takes into account the influence of biological factors according to an embodiment of the present invention;

[0022] Figure 2 This is for Figure 1 Enlarged schematic diagram of a medium-sized transparent vessel;

[0023] Figure 3 This is a schematic diagram of a transparent flocculation device in a flocculation-sedimentation experimental system that can take into account the influence of biological factors according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of a transparent vessel in a flocculation-sedimentation experimental system that takes into account the influence of biological factors according to an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the flocculation incubator in a flocculation-sedimentation experimental system that can take into account the influence of biological factors according to an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the agitation device in a flocculation-sedimentation experimental system that takes into account the influence of biological factors according to an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the external fixing device in a flocculation-sedimentation experimental system that can take into account the influence of biological factors according to an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of a transparent sedimentation device in a flocculation-sedimentation experimental system that takes into account the influence of biological factors, according to an embodiment of the present invention.

[0029] Figure Labels

[0030] A flocculation-sedimentation experimental system 1000, which can consider the influence of biological factors, includes: a flocculation system 1; a transparent flocculation device 101; a drain hole 1011; a flocculation incubator 102; an insulated box 1021; a stirring device 1022; a speed regulating device 10221; an impeller 10222; a variable frequency motor 10221a; a connecting rod 10221b; a heating device 1023; a heating tube 10231; a heating control unit 10232; a lighting device 1024; a light lamp 10241; a lighting control unit 10242; a circulating fan 1025; and an exhaust port 1026. (Flocculation device is also described.) Body development measurement device 103; transparent container 1031; circulation pipeline 1032; first peristaltic pump 1033; laser particle size analyzer 1034; first computer control system 1035; sedimentation system 2; sedimentation incubator 201; transparent sedimentation device 202; transfer device 203; transfer pipeline 2031; second peristaltic pump 2032; sedimentation velocity observation device 204; light-emitting element 2041; lens 2042; camera 2043; second computer control system 2044; external fixing device 205; groove 2051; through hole 2052; transparent grid 206. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The following is combined Figures 1 to 8 This invention describes a flocculation-sedimentation experimental system 1000 that takes into account the influence of biological factors in an embodiment of the invention.

[0033] like Figure 1 and Figure 2 As shown, the flocculation-sedimentation experimental system 1000, which takes into account the influence of biological factors according to an embodiment of the present invention, includes a flocculation system 1 and a sedimentation system 2.

[0034] The flocculation system 1 is used to conduct flocculation simulation experiments on water containing sediment. The flocculation system 1 includes a transparent flocculation device 101, a flocculation incubator 102, and a floc development measurement device 103. The transparent flocculation device 101 is used to hold water containing sediment for flocculation. The sediment in the water includes natural sediment or fine-grained sediment such as kaolinite and montmorillonite. The sediment concentration can be obtained through mixing. Biological factors, such as algae or extracellular polymers, can be added to the water containing sediment as needed for research. Substances (EPS), etc., and control the concentration of biological factors; a transparent flocculation device 101 is set in a flocculation incubator 102. The transparent flocculation device 101 can be made of a highly transparent organic material, such as plexiglass; the flocculation incubator 102 is used to provide controllable water turbulence, light, and temperature conditions for the sediment flocculation process. That is, the flocculation incubator 102 can agitate the sediment-containing water body undergoing flocculation to simulate water turbulence conditions, can control the temperature environment of the transparent flocculation device 101 and the sediment-containing water body undergoing flocculation within the flocculation incubator 102, and can use light to shine through the wall of the transparent flocculation device 101 into the sediment-containing water body undergoing flocculation to simulate the light conditions for flocculation. In short, the flocculation incubator 102 can simulate different environmental conditions of sediment-containing water bodies to better understand the changes in sediment flocculation with changes in environmental conditions; a floc development measurement device 103 is used to measure the development of flocs in the transparent flocculation device 101 in real time.

[0035] The sedimentation system 2 is used to conduct sedimentation simulation experiments on water containing flocs at different developmental stages. The sedimentation system 2 includes a transfer device 203, a transparent sedimentation device 202, a sedimentation incubator 201, and a sedimentation velocity observation device 204. The transfer device 203 connects the transparent flocculant device 101 and the transparent sedimentation device 202 to transfer flocs at different developmental stages from the transparent flocculant device 101 to the transparent sedimentation device 202 for sedimentation. The transparent sedimentation device 202 is placed inside the sedimentation incubator 201 and can be made of a highly transparent organic material, such as plexiglass. The sedimentation incubator 201 provides controllable light and temperature conditions for the floc sedimentation process. In other words, the sedimentation incubator 201 can control the temperature environment of the transparent sedimentation device 202 and the flocs settling inside it. Light can be irradiated into the water containing the flocs through the wall of the transparent sedimentation device 202 to simulate the lighting conditions during the flocs settling process. In short, the sedimentation incubator 201 can simulate different environmental conditions during the flocs settling process to better understand the changes in flocs settling with environmental conditions. The sedimentation velocity observation device 204 is used to observe the settling velocity of the flocs in the transparent sedimentation device 202 in real time.

[0036] During operation, the transparent flocculation device 101 contains water containing silt for flocculation. A flocculation incubation chamber 102 simulates the water turbulence, temperature, and light conditions of the flocculated water. A floc development measurement device 103 monitors the floc development in real time. Flocs at different development stages are transferred from the transparent flocculation device 101 to the transparent sedimentation device 202 via a transfer device 203. The sedimentation incubation chamber 201 simulates the temperature and light conditions of the floc sedimentation process. A sedimentation velocity observation device 204 monitors the sedimentation velocity of the flocs in the transparent sedimentation device 202 in real time.

[0037] According to the flocculation-sedimentation experimental system 1000 of the present invention, which can take into account the influence of biological factors, biological factors such as different algae or extracellular polymeric substances (EPS) can be added to the sediment-containing water body as needed for research. The concentration of biological factors is controlled, and flocculation simulation experiments are carried out in the transparent flocculation device 101 in the flocculation incubator 102. Based on different flocculation experimental environmental conditions, different suspended sediment concentrations of sediment-containing water bodies are obtained by different ratios. The flocculation incubator 102 simulates different water turbulence, temperature and light conditions required for the flocculation experiment, and the development of flocs is detected in real time by the floc development measurement device 103. The flocs at different development stages are transferred from the transparent flocculation device 101 to the transparent sedimentation device 202 by the transfer device 203. The sedimentation incubator 201 simulates the temperature and light conditions of the floc sedimentation process, and the sedimentation velocity of the flocs in the transparent sedimentation device 202 is observed in real time by the sedimentation velocity observation device 204. Therefore, the flocculation-sedimentation experimental system 1000 of this invention, which considers the influence of biological factors, can take into account the impact of biological factors on the flocculation and sedimentation process of sediment. It can control multiple environmental variables and accurately simulate the flocculation-sedimentation behavior of sediment communities in sediment-laden water bodies without interference. It can obtain the flocculation-sedimentation law of biological sediment under more realistic conditions, and has the advantages of strong adjustability and high accuracy, and has good prospects for promotion and application. In addition, the flocculation system 1 and sedimentation system 2 in the flocculation-sedimentation experimental system 1000 of this invention can be used independently. For example, when using flocculation system 1 alone, the temperature and light environment in the flocculation incubator 102 can be adjusted to complete the individual cultivation of biological samples (such as algae). For example, under certain water flow turbulence interference, the growth of biological samples and the secretion of their secretions in the transparent flocculation device can be monitored in real time by controlling environmental factors such as temperature and light.

[0038] In some embodiments, such as Figure 1As shown, the flocculation incubator 102 includes an insulated chamber 1021, a stirring device 1022, a heating device 1023, and a lighting device 1024. The stirring device 1022, heating device 1023, and lighting device 1024 are mounted on the insulated chamber 1021. The stirring device 1022 agitates the sediment-containing water undergoing flocculation within the transparent flocculation device 101 to simulate turbulent water conditions. The heating device 1023 simulates the temperature conditions during the sediment flocculation process, and the lighting device 1024 simulates the light conditions during the sediment flocculation process. Therefore, the flocculation incubator 102 can simulate the water turbulence, temperature, and light conditions during the sediment flocculation process, offering convenient operation and high adjustability.

[0039] In some embodiments, such as Figure 1 and Figure 6 As shown, the agitation device 1022 includes a speed regulating device 10221 and an impeller 10222. The speed regulating device 10221 is mounted on the insulation box 1021, and the impeller 10222 is connected to the speed regulating device 10221 and placed inside the transparent flocculation device 101. The speed regulating device 10221 controls the speed of the impeller 10222, that is, controls the speed of the stirring blades, to agitate the water in the transparent flocculation device 101, thereby applying different external conditions of water turbulence to the flocculants.

[0040] Specifically, refer to Figure 6 The speed adjustment device 10221 includes a variable frequency motor 10221a and a connecting rod 10221b. The variable frequency motor 10221a is installed inside the flocculation incubator 102 and connected to one end of the connecting rod 10221b. The other end of the connecting rod 10221b is connected to the impeller 10222. The variable frequency motor 10221a drives the impeller 10222 to rotate by applying different speeds, thereby generating isotropic grid turbulence and achieving different water turbulence conditions. Therefore, the simulation of water turbulence is convenient and highly adjustable.

[0041] In some embodiments, such as Figure 1 and Figure 5 As shown, the heating device 1023 includes a heating tube 10231 and a heating control unit 10232, which can be understood as a heating knob. The heating tube 10231 is disposed inside the insulation box 1021 and outside the transparent flocculation device 101, while the heating control unit 10232 is disposed outside the insulation box 1021 and is used to control the heating of the heating tube 10231. In other words, by adjusting the heating control unit 10232, the heating temperature of the heating tube 10231 is adjusted, thereby realizing the adjustment and control of the temperature inside the insulation box 1021, achieving simulation of different flocculation temperatures, convenient operation, and strong adjustability.

[0042] like Figure 5As shown, there are multiple heating tubes 10231 arranged in a row inside the flocculation incubator 102. All are stainless steel heat sink type heating tubes 10231, ensuring even airflow. The wiring terminals of the heating tubes 10231 are externally located on the flocculation incubator 102, with a spacing (greater than 55mm) between each heating tube to ensure permanent circuit safety. The temperature inside the flocculation incubator 102 is controlled by the heating control unit 10232. The openings for the wiring terminals of the heating tubes 10231 are located on the rear side of the flocculation incubator 102, avoiding heat transfer to electrical components that would reduce their lifespan if openings were located at the top.

[0043] In some embodiments, such as Figure 1 and Figure 5 As shown, the top of the flocculation incubator 102 is equipped with a circulating fan 1025 to ensure a large air volume circulation inside the flocculation incubator 102, in order to compensate for the temperature difference caused to the flocculation incubator 102 during ventilation; the flocculation incubator 102 is provided with an exhaust port 1026 to allow the turbid gas inside the flocculation incubator 102 to be discharged to the outside.

[0044] In some embodiments, such as Figure 1 As shown, the illumination device 1024 includes an illumination lamp 10241 and an illumination control unit 10242. The illumination control unit 10242 can be an illumination knob. The illumination lamp 10241 is installed inside the insulation box 1021 and outside the transparent flocculation device 101. The illumination control unit 10242 is installed outside the insulation box 1021 and is used to control the illumination intensity of the illumination lamp 10241. In other words, by adjusting the illumination control unit 10242, the illumination intensity of the illumination lamp 10241 can be adjusted, thereby simulating different illumination intensities for flocculation. It is convenient to operate and highly adjustable.

[0045] In some embodiments, such as Figure 1 and Figure 2 As shown, the floc development measuring device 103 includes a transparent container 1031, a circulation pipeline 1032, a first peristaltic pump 1033, and a laser particle size analyzer 1034. The transparent container 1031 can be made of a highly transparent organic material, such as plexiglass. The transparent container 1031 is connected to the transparent flocculation device 101 through the circulation pipeline 1032. The first peristaltic pump 1033 is installed on the circulation pipeline 1032 to allow the silt-containing water undergoing flocculation in the transparent flocculation device 101 to enter the transparent container 1031 and flow back from the transparent container 1031 to the transparent flocculation device 101. The transparent container 1031 is mounted on the laser particle size analyzer 1034, which is used to measure the floc development in the transparent container 1031 in real time.

[0046] It should be noted that the transparent flocculation device 101 has multiple drainage holes 1011 evenly arranged vertically along its sidewalls to release silt flocs. In actual use, for example... Figure 3 As shown, typically one drain hole 1011 is connected to one end of the circulation pipe 1032, while the other drain holes 1011 are closed. The purpose of setting multiple drain holes 1011 is to allow sampling at different locations as needed.

[0047] In some embodiments, the laser particle size analyzer 1034 uses particle size analysis technology based on the principle of laser forward scattering to analyze the development of flocs, and the analysis results are accurate and reliable.

[0048] In some embodiments, such as Figure 1 As shown, the floc development measuring device 103 also includes a first computer control system 1035, which is connected to a laser particle size analyzer 1034. The laser particle size analyzer 1034 synchronously measures the floc development under the first computer control system 1035 and transmits the results back to the first computer control system 1035 in real time for analysis and storage.

[0049] In some embodiments, the settling velocity observation device 204 includes a light-emitting element 2041, a lens 2042, a camera 2043, and a second computer control system 2044. The light-emitting element 2041 can be an LED light-emitting panel. The light-emitting element 2041 and the lens 2042 are disposed opposite to each other on the two side walls outside the transparent settling device 202. The light-emitting element 2041 is used to illuminate the water containing flocculants located in front of the light-emitting element 2041 inside the transparent settling device 202. The lens 2042 is used to magnify the flocculants so that the camera 2043 can clearly photograph the flocculants in real time to obtain the settling velocity of the flocculants. The second computer control system 2044 is connected to the camera 2043 and is used to record the data transmitted by the camera 2043.

[0050] In some embodiments, such as Figure 1 and Figure 5 As shown, the structure of the sedimentation incubator 201 is basically the same as that of the flocculation incubator 102, and will not be described in detail here.

[0051] In some embodiments, such as Figure 7 and Figure 8 As shown, the sedimentation system 2 also includes an external fixing device 205, which is installed inside the sedimentation incubator 201. The transparent sedimentation device 202 is fixed to the external fixing device 205 to ensure that the transparent sedimentation device 202 will not slip during the experiment. Specifically, the external fixing device 205 can be secured to the ribs of the transparent sedimentation device 202 through a vertically extending groove 2051 on its inner wall. The external fixing device is provided with a through hole 2052 for the lens 2042 to pass through.

[0052] In some implementations, such as Figure 1 As shown, the transfer device 203 includes a transfer pipeline 2031 and a second peristaltic pump 2032. The two ends of the transfer pipeline 2031 are connected to the transparent flocculation device 101 and the transparent settling device 202, respectively. The second peristaltic pump 2032 is mounted on the transfer pipeline 2031. By configuring the transfer pipeline 2031 and the second peristaltic pump 2032, flocs at different stages of development within the transparent flocculation device 101 can be pumped into the transparent settling device 202 for floc settling experiments.

[0053] In some embodiments, such as Figure 1 As shown, the sedimentation system 2 also includes a transparent grid 206, which can be made of a highly transparent organic material, such as plexiglass. The transparent grid 206 is installed inside the transparent sedimentation device 202 to prevent water disturbance within the transparent sedimentation device 202 to the greatest extent possible.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A flocculation-sedimentation experimental system that takes into account the influence of biological factors, characterized in that, include: A flocculation system, comprising a transparent flocculation device, a flocculation incubator, and a floc development measurement device; The transparent flocculation device is used to hold water containing silt and sand for flocculation; the transparent flocculation device is set in the flocculation incubation box, which is used to provide controllable water turbulence, light, and temperature conditions for the silt flocculation process; the floc development measurement device is used to measure the development of flocs in the transparent flocculation device in real time. A sedimentation system, comprising a transfer device, a transparent sedimentation device, a sedimentation incubator, and a sedimentation velocity observation device; the transfer device connects the transparent flocculation device and the transparent sedimentation device to transfer flocs at different stages of development in the transparent flocculation device to the transparent sedimentation device for sedimentation. The transparent sedimentation device is installed in the sedimentation incubator, which provides controllable light and temperature conditions for the sedimentation process of the flocs; the sedimentation velocity observation device is used to observe the sedimentation velocity of the flocs in the transparent sedimentation device in real time. The floc development measuring device includes a transparent container, a circulation pipeline, a first peristaltic pump, and a laser particle size analyzer; the transparent container is connected to the transparent flocculation device through the circulation pipeline; the first peristaltic pump is installed on the circulation pipeline to allow the muddy water being flocculated in the transparent flocculation device to enter the transparent container and flow back from the transparent container to the transparent flocculation device. The transparent container is mounted on the laser particle size analyzer, which is used to measure the development of flocs in the transparent container in real time. The transfer device includes a transfer pipeline and a second peristaltic pump. The two ends of the transfer pipeline are respectively connected to the transparent flocculation device and the transparent sedimentation device, and the second peristaltic pump is installed on the transfer pipeline.

2. The flocculation-sedimentation experimental system considering the influence of biological factors according to claim 1, characterized in that, The flocculation incubator includes an insulated box, a stirring device, a heating device, and a light source. The stirring device, heating device, and light source are mounted on the insulated box. The stirring device is used to stir the silt-containing water undergoing flocculation in the transparent flocculation device to simulate turbulent water conditions. The heating device is used to simulate the temperature conditions of the silt flocculation process. The light source is used to simulate the light conditions of the silt flocculation process.

3. The flocculation-sedimentation experimental system considering the influence of biological factors according to claim 2, characterized in that, The stirring device includes a speed regulating device and an impeller. The speed regulating device is installed on the heat preservation box, and the impeller is connected to the speed regulating device and placed inside the transparent flocculation device.

4. The flocculation-sedimentation experimental system considering the influence of biological factors according to claim 2, characterized in that, The heating device includes a heating tube and a heating control unit. The heating tube is disposed inside the insulation box and outside the transparent flocculation device. The heating control unit is disposed outside the insulation box and is used to control the heating of the heating tube.

5. The flocculation-sedimentation experimental system considering the influence of biological factors according to claim 2, characterized in that, The illumination device includes an illumination lamp and an illumination control unit. The illumination lamp is disposed inside the insulation box and outside the transparent flocculation device. The illumination control unit is disposed outside the insulation box and is used to control the illumination intensity of the illumination lamp.

6. The flocculation-sedimentation experimental system considering the influence of biological factors according to claim 1, characterized in that, The laser particle size analyzer uses particle size analysis technology based on the principle of laser forward scattering to analyze the development of flocs.

7. The flocculation-sedimentation experimental system considering the influence of biological factors according to claim 1, characterized in that, The floc development measuring device also includes a first computer control system, which is connected to the laser particle size analyzer. The laser particle size analyzer synchronously measures the floc development under the first computer control system and transmits the results back to the first computer control system in real time for analysis and storage.

8. The flocculation-sedimentation experimental system considering the influence of biological factors according to any one of claims 1-7, characterized in that, The settling velocity observation device includes a light-emitting element, a lens, a camera, and a second computer control system. The light-emitting element and the lens are arranged opposite each other on the two side walls outside the transparent settling device. The light-emitting element is used to illuminate the water containing flocculants located in front of the light-emitting element inside the transparent settling device. The lens is used to magnify the flocculants so that the camera can clearly capture the flocculants in real time to obtain the settling velocity of the flocculants. The second computer control system is connected to the camera and is used to record the data transmitted by the camera.

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