CN-116858730-B - Flocculation-sedimentation experimental system capable of considering biological factor influence

CN116858730BCN 116858730 BCN116858730 BCN 116858730BCN-116858730-B

Abstract

The invention discloses a flocculation-sedimentation experiment system capable of considering biological factor influence, wherein in the flocculation system, a transparent flocculation device is arranged in a flocculation incubator, the flocculation incubator is used for providing controllable water turbulence, illumination and temperature conditions for a sediment flocculation process, a flocculating constituent development measuring device is used for measuring the development condition of flocculating constituents in the transparent flocculation device in real time, in the sedimentation system, a transferring device is used for transferring the flocculating constituents in different stages of development in the transparent flocculation device into a transparent sedimentation device for sedimentation, the transparent sedimentation device is arranged in the sedimentation incubator, the sedimentation incubator is used for providing controllable illumination and temperature conditions for the flocculating constituent sedimentation process, and a sedimentation velocity observing device is used for observing the sedimentation velocity of the flocculating constituents in the transparent sedimentation device in real time. The invention can consider the influence of biological factors on the flocculation and sedimentation processes of the sediment, realize control of various environmental variables, and accurately simulate the flocculation-sedimentation behavior of the sediment population in the sediment-containing water body without interference.

Inventors

ZHANG YIJIE
XU YUAN
Guo Leicheng
ZHANG NAIYU
MA BINBIN
ZHANG DAN
HE QING

Assignees

华东师范大学

Dates

Publication Date: 20260512
Application Date: 20230713

Claims (8)

1. A flocculation-sedimentation experiment system capable of considering biological factors, comprising: The flocculation system comprises a transparent flocculation device, a flocculation incubator and a flocculent development measuring device, wherein the transparent flocculation device is used for containing a sediment water body for flocculation, the transparent flocculation device is arranged in the flocculation incubator and is used for providing controllable water body turbulence, illumination and temperature conditions for the sediment flocculation process, and the flocculent development measuring device is used for measuring the development condition of flocculent in the transparent flocculation device in real time; the sedimentation system comprises a transfer device, a transparent sedimentation device, a sedimentation incubator and a sedimentation speed observation device, wherein the transfer device is connected with the transparent flocculation device and the transparent sedimentation device so as to transfer floccules in different stages of development in the transparent flocculation device into the transparent sedimentation device for sedimentation; The flocculating body development measuring device comprises a transparent vessel, a circulating pipeline, a first peristaltic pump and a laser particle sizer, wherein the transparent vessel is connected with the transparent flocculation device through the circulating pipeline, the first peristaltic pump is arranged on the circulating pipeline and is used for enabling sediment-containing water body flocculated in the transparent flocculation device to enter the transparent vessel and flow back into the transparent flocculation device from the transparent vessel; The transfer device comprises a transfer pipeline and a second peristaltic pump, two ends of the transfer pipeline are respectively communicated with the transparent flocculation device and the transparent sedimentation device, and the second peristaltic pump is arranged on the transfer pipeline.
2. The flocculation-sedimentation experiment system capable of considering biological factors according to claim 1, wherein the flocculation incubator comprises an insulation box body, a stirring device, a heating device and an illumination device, wherein the stirring device, the heating device and the illumination device are arranged on the insulation box body, the stirring device is used for stirring a sediment-containing water body subjected to flocculation in the transparent flocculation device to simulate a water body turbulence condition, the heating device is used for simulating a temperature condition of a sediment flocculation process, and the illumination device is used for simulating an illumination condition of the sediment flocculation process.
3. The flocculation-sedimentation experiment system capable of considering biological factors according to claim 2, wherein the stirring device comprises a rotating speed adjusting device and an impeller, the rotating speed adjusting device is arranged on the heat preservation box body, and the impeller is connected with the rotating speed adjusting device and is arranged in the transparent flocculation device.
4. The flocculation-sedimentation experiment system considering biological factors according to claim 2, wherein the heating device comprises a heating pipe and a heating control part, the heating pipe is arranged in the heat insulation box body and is positioned outside the transparent flocculation device, and the heating control part is arranged outside the heat insulation box body and is used for controlling the heating pipe to heat.
5. The flocculation-sedimentation experiment system considering biological factors according to claim 2, wherein the illumination device comprises an illumination lamp and an illumination control part, the illumination lamp is arranged in the heat preservation box body and is positioned outside the transparent flocculation device, and the illumination control part is arranged outside the heat preservation box body and is used for controlling illumination intensity of the illumination lamp.
6. The flocculation-sedimentation experiment system considering biological factors as claimed in claim 1, wherein the laser particle sizer analyzes the development of the floccules by using a particle size analysis technique of laser forward scattering principle.
7. The biological factor-affected flocculation-sedimentation experiment system according to claim 1, wherein the flocculent development measuring device further comprises a first computer control system, wherein the first computer control system is connected with the laser particle sizer, the laser particle sizer synchronously measures flocculent development under the first computer control system, and the result is transmitted back to the first computer control system for analysis and storage.
8. The flocculation-sedimentation experiment system considering biological factors according to any one of claims 1 to 7, wherein the sedimentation velocity observation device comprises a light emitting element, a lens, a camera and a second computer control system, wherein the light emitting element and the lens are oppositely arranged on two side walls outside the transparent sedimentation device, the light emitting element is used for illuminating a water body containing flocculate in front of the light emitting element in the transparent sedimentation device, the lens is used for amplifying the flocculate so that the camera can clearly shoot the flocculate in real time to obtain the sedimentation velocity of the flocculate, and the second computer control system is connected with the camera and used for recording data transmitted by the camera.

Description

Flocculation-sedimentation experimental system capable of considering biological factor influence Technical Field The invention relates to the technical field of sediment flocculation-sedimentation research, in particular to a flocculation-sedimentation experimental system capable of considering biological factor influence. Background In natural environments such as rivers, estuaries, coastal zones and the like, the flocculation process of fine-particle sediment can be influenced by the existence of biological factors such as algae and the like. Organisms combine with sediment to produce large bio-sediment aggregates. Biological properties, such as organic content, directly affect the density and structural differences of the flocs. In addition, the organic content affects the floc strength and collision efficiency, average floc size and floc breakage, and the organic concentration varies with seasonal factors. The existing sediment flocculation research means have the defects that firstly, the research on flocculation is mostly focused on the physical and chemical environment, such as the control on conditions of water turbulence, sediment concentration, PH value, salinity and the like, but biological factors (such as algae and secretion thereof) are usually two key factors influencing erosion and flocculation processes, the substances can stabilize sediment beds and bond suspended sediment particles together, but the influence of the biological factors is usually considered, secondly, due to the existence of the biological factors, the sediment flocculation caused by organisms and the sedimentation velocity of the flocs are obviously influenced by external environment variables such as light, water turbulence, sediment concentration, temperature and the like, the experimental device for the flocculation research can not quantitatively simulate different conditions in a natural water body at present, and finally, the sediment flocculation research means can hardly realize real-time monitoring on different stages of floc development and accurate measurement on sedimentation velocity in the floc sedimentation process, which can ignore certain important parameters of flocs. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention aims to provide a flocculation-sedimentation experiment system capable of considering the influence of biological factors, which can consider the influence of the biological factors on the flocculation and sedimentation process of sediment, realize control of various environmental variables, and accurately simulate the flocculation-sedimentation behavior of sediment groups in a sediment-containing water body without interference. A flocculation-sedimentation experiment system according to an embodiment of the present invention, which can consider the influence of biological factors, includes: The flocculation system comprises a transparent flocculation device, a flocculation incubator and a flocculent development measuring device, wherein the transparent flocculation device is used for containing a sediment water body for flocculation, the transparent flocculation device is arranged in the flocculation incubator and is used for providing controllable water body turbulence, illumination and temperature conditions for the sediment flocculation process, and the flocculent development measuring device is used for measuring the development condition of flocculent in the transparent flocculation device in real time; The sedimentation system comprises a transfer device, a transparent sedimentation device, a sedimentation incubator and a sedimentation speed observation device, wherein the transfer device is connected with the transparent flocculation device and the transparent sedimentation device so as to transfer floccules in different stages of development in the transparent flocculation device into the transparent sedimentation device for sedimentation, the transparent sedimentation device is arranged in the sedimentation incubator and is used for providing controllable illumination and temperature conditions for a floccule sedimentation process, and the sedimentation speed observation device is used for observing the sedimentation speed of floccules in the transparent sedimentation device in real time. During operation, the transparent flocculation device is used for placing the sediment-containing water body for flocculation, the flocculation incubator is used for simulating the water body turbulence, temperature and illumination conditions of the sediment-containing water body for flocculation, and the flocculating constituent development measuring device is used for detecting the developing condition of the flocculating constituent in real time. And transferring the floccules at different stages of development from the transparent flocculation device to the transparent sedimentation device t