Sand content measuring method based on flocculating settling

Abstract

The invention discloses a method for measuring the sand content based on flocculating settling. The method comprises the following steps: measuring the volume of a water body of which the sand content is to be measured; placing a water body in a container; the filter paper to be used is weighed; ionization and flocculation: the water body in the container is ionized, so that suspended sediment particles in the water body are gathered and concentrated through flocculation, and floc with the suspended sediment particles is formed; sucking the floc with suspended sediment particles in the container and other sediment particles onto the filter paper; filtering the floc by using filter paper, separating out suspended sediment particles, and gathering the suspended sediment particles with other sediment particles to obtain total sediment particles; the filter paper with the total sediment particles is dried and weighed again, and the total weight of the filter paper and the total sediment particles is obtained; calculating the sand content of the water body; the time required by the water precipitation process is remarkably shortened, the test speed is increased, and the measurement precision is improved; the device is especially suitable for measuring the sand content of a low-sand-content water body, measuring errors can be reduced, and the measuring efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrological sediment observation, and in particular relates to a sediment content measurement method based on flocculation sedimentation. Background Art

[0002] At present, the main method for measuring the sediment content of water bodies includes the steps of filtering, drying, and weighing. However, when the sediment content of water bodies is relatively low, the existing balance is limited by the measurement accuracy, which will cause large errors. Therefore, in this case, a large number of water samples are generally required to be tested, and then the subsequent tests are carried out after sedimentation and concentration; especially when testing water bodies with low sediment content, the sedimentation process takes a long time to obtain relatively accurate results, so it is inefficient and affects the progress of work. Summary of the invention

[0003] The purpose of the present invention is to provide a method for measuring the sediment content based on flocculation and sedimentation, which utilizes the flocs formed in the flocculation process to capture particles in the water body and the accelerated sedimentation effect of the flocs, solves the problems of large errors and low efficiency in the existing technology of measuring the sediment content of water bodies by filtering, drying and weighing, can significantly shorten the time required for the sedimentation process of the water body, speed up the test speed and improve the measurement accuracy; it is particularly suitable for measuring the sediment content of water bodies with low sediment content, can reduce the measurement error and improve the measurement efficiency; wherein, the sediment content in the water body with low sediment content is less than 1kg / m 3 .

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a method for measuring sediment content based on flocculation sedimentation, comprising the following steps:

[0006] Placing a water body: measuring the volume of the water body whose sand content is to be measured, and obtaining the volume of the water body as V; and placing the water body in a container;

[0007] Prepare and weigh the filter paper: weigh the filter paper to be used, and obtain the weight of the filter paper as m1;

[0008] Ionization flocculation: ionizing the water in the container so that the suspended sediment particles in the water are aggregated and concentrated through flocculation to form flocs with suspended sediment particles;

[0009] Absorbing the flocs and other sediment particles: Absorbing the flocs with the suspended sediment particles and other sediment particles in the container onto the filter paper;

[0010] Sedimentation: filtering the flocs with the filter paper to precipitate the suspended sediment particles and aggregate them with the remaining sediment particles to obtain total sediment particles;

[0011] Drying and weighing the filter paper: drying the filter paper with the total sediment particles, and weighing it again to obtain a total weight of the filter paper and the total sediment particles as m2;

[0012] Calculate the sediment content of the water body: Calculate the sediment content c of the water body by the formula,

[0013]

[0014] The method for measuring the sediment content based on flocculation and sedimentation provided by the present invention solves the problems of large error and low efficiency in the existing technology of measuring the sediment content of water bodies by filtering, drying and weighing through the capture effect of flocs formed in the flocculation process on particles in the water body and the accelerated sedimentation effect of flocs, and can significantly shorten the time required for the sedimentation process of the water body, speed up the test speed, and improve the measurement accuracy; it is particularly suitable for measuring the sediment content of water bodies with low sediment content, and can reduce the measurement error and improve the measurement efficiency. Among them, flocculation is a common phenomenon in sandy water bodies such as rivers and reservoirs. It is triggered by the polymerization between fine sediment particles, resulting in the formation of larger floccules. Compared with individual sediment particles, these floccules can usually significantly increase the sedimentation rate of sediment particles. In the application of electroflocculation technology, when the current passes through the electrode, an electrochemical reaction is induced on the electrode surface, and the generated ions have good flocculation performance. These substances effectively capture the suspended sediment particles dispersed in the water through the action of the electric field force, charge adsorption, floc sweeping and other mechanisms. In addition, the bubbles generated on the electrode surface will also help smaller suspended particles float up through flotation, further improving the separation efficiency of suspended particles.

[0015] Preferably, the suspended sediment particles include sediment particles in a suspended state in the water body and sediment particles settled to the bottom of the water after ionization flocculation, and the remaining sediment particles include sediment particles with smaller particle sizes floating on the water surface after ionization flocculation and sediment particles with larger particle sizes sinking to the bottom of the water;

[0016] The silt particles include suspended silt particles in the flocs and other silt particles in the water body, and also include other impurities in the water body.

[0017] Preferably, the container is configured as a transparent container; when the step of absorbing flocs and other sediment particles is performed, the flocs visible to the naked eye, the smaller sediment particles floating on the water surface, and the larger sediment particles sinking to the bottom of the water in the container are absorbed onto the filter paper.

[0018] Preferably, light is irradiated to the container during the step of absorbing flocs and other silt particles.

[0019] Preferably, the steps of ionization flocculation and absorption of flocs and other sediment particles are repeated until no flocs are visible to the naked eye, and then the step of separating out the sediment is performed.

[0020] Preferably, when preparing and weighing the filter paper, the filter paper is first dried and then weighed to obtain a weight of m1; the filter pore size of the filter paper is less than 10 μm.

[0021] Preferably, when performing the ionization flocculation step, the current intensity is set to one, or the current intensity is changed to two or more.

[0022] Preferably, the ionization flocculation step is performed by an ionization device, wherein the ionization device is provided with an anode and a cathode; the ionization device is provided in one set or more than two sets.

[0023] Preferably, when the ionization device is provided in two or more sets, the plurality of ionization devices are respectively placed at different heights in the water body, or the plurality of ionization devices are respectively placed in different areas at the same height in the water body.

[0024] Preferably, when performing the ionization flocculation step, the water body is made to flow, or the anode and the cathode are moved; or, the water body is made to flow while the anode and the cathode are moved.

[0025] The sand content measurement method based on flocculation sedimentation provided by the present invention has the following beneficial effects:

[0026] The sand content measurement method based on flocculation and sedimentation of the present invention utilizes the effective capture effect of flocs formed in the flocculation process on particles in the water body and the accelerated sedimentation effect of the flocs, thereby solving the problems of large errors and low efficiency in the prior art of measuring the sand content of water bodies through filtration, drying and weighing, and can significantly shorten the time required for the water body sedimentation process, speed up the test speed, and improve the accuracy of the measurement test results; it is particularly suitable for measuring the sand content of water bodies with low sand content, and is also suitable for water bodies with smaller sediment particles, and can reduce measurement errors, improve the reliability of test results, and improve measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow chart of a method for measuring sediment content based on flocculation and sedimentation provided by one embodiment of the present invention.

[0028] Figure 2 It is a schematic diagram of ionization flocculation of a sediment content measurement method based on flocculation sedimentation provided by an embodiment of the present invention.

[0029] Figure 3It is a flow chart of a method for measuring sediment content based on flocculation sedimentation provided by another embodiment of the present invention.

[0030] Reference numerals in the figures:

[0031] 1 is a container, 100 is a water body, 110 is total sediment particles, 111 is suspended sediment particles, 112 is other sediment particles, 210 is an anode, and 220 is a cathode. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below through the accompanying drawings and specific embodiments.

[0033] Example

[0034] Please refer to Figure 1 and Figure 2 This embodiment provides a method for measuring sediment content based on flocculation sedimentation, comprising the following steps:

[0035] Step S1, placing a water body: measuring the volume of a water body 100 whose sediment content is to be measured, and obtaining a volume V of the water body 100; and placing the water body 100 in a container 1;

[0036] Step S2, preparing and weighing filter paper: weighing the filter paper to be used, and obtaining a weight of the filter paper as m1;

[0037] Step S3, ionization flocculation: ionizing the water body 100 in the container 1, so that the suspended sediment particles 111 in the water body 100 are aggregated and concentrated through flocculation to form flocs with the suspended sediment particles 111;

[0038] Step S4, sucking out the flocs and the remaining sediment particles: sucking the flocs with the suspended sediment particles 111 and the remaining sediment particles 112 in the container 1 onto the filter paper;

[0039] Step S5, precipitating sediment: filtering the flocs with filter paper to precipitate suspended sediment particles 111 and aggregate them with the remaining sediment particles 112 to obtain total sediment particles 110;

[0040] Step S6, drying and weighing the filter paper: drying the filter paper with the total sediment particles 110, and weighing it again, and obtaining a total weight of the filter paper and the total sediment particles 110 as m2;

[0041] Step S7, calculating the sediment content of the water body: Calculate the sediment content c of the water body 100 by formula (1),

[0042]

[0043] Figure 2 In, e -represents electrons, and the solid arrow pointing rightwards below represents the direction of electron movement; A represents electric current, and the solid arrow pointing leftwards below represents the direction of electric current; O2 represents oxygen, and the upward hollow arrow on the right side below represents the direction of oxygen and the movement of the remaining suspended sediment particles 112 with smaller particle sizes (low density) in the water body 100 through flotation entrainment; H2 represents hydrogen, and the upward hollow arrow on the left side below represents the direction of hydrogen and the movement of the remaining suspended sediment particles 112 with smaller particle sizes (low density) in the water body 100 through flotation entrainment; H + represents hydrogen ions, and the downward arrow below it represents the movement direction of hydrogen ions and the suspended sediment particles 111 adsorbed by them in the water body 100; OH - represents hydroxide ions, and the downward arrow below represents the movement direction of the hydroxide ions and the suspended sediment particles 111 adsorbed thereon in the water body 100. The remaining suspended sediment particles 112 in the central area of ​​the bottom of the water represent the larger sediment particles that sink to the bottom of the water.

[0044] The sediment content measurement method based on flocculation and sedimentation of the present embodiment utilizes the capture effect of flocs formed in the ionization flocculation process on particles in the water body 100 and the accelerated sedimentation effect of the flocs, which can significantly shorten the time required for the separation and sedimentation process of the suspended sediment particles 111 and the remaining sediment particles 112 from the water body 100, speed up the test speed, shorten the sediment content test time, and improve the accuracy of the test results; it is particularly suitable for measuring the sediment content of water bodies with low sediment content, and can reduce measurement errors and improve measurement efficiency.

[0045] The sand content measurement method based on flocculation sedimentation of this embodiment can be applied to suspended particles of various particle sizes in the water body 100, and is particularly applicable to suspended particles with a particle size of less than 1 mm in the water body 100 with low sand content.

[0046] In some embodiments, the suspended sediment particles 111 include sediment particles in a suspended state in the water body 100 and sediment particles that have settled to the bottom of the water after ionization flocculation, and the remaining sediment particles 112 include sediment particles with smaller particle sizes that float on the water surface after ionization flocculation and sediment particles with larger particle sizes that sink to the bottom of the water;

[0047] The silt particles 110 include suspended silt particles 111 in the flocs and other silt particles 112 in the water body 100 , and also include other impurities in the water body 100 .

[0048] Specifically, the particle size of the smaller-sized sediment particles is less than 0.04 mm, and the particle size of the larger-sized sediment particles is greater than 1 mm.

[0049] Specifically, the total sediment particles 110 include sediment particles that have sunk to the bottom and suspended sediment particles.

[0050] The sediment particles that sink to the bottom include charged particles (H + OH - ) carries the suspended sediment particles 111 that settle to the bottom of the water, as well as the remaining sediment particles 112 of larger particle size that were originally at the bottom of the water.

[0051] Suspended sediment particles include charged particles (H + OH - ) carries suspended sediment particles 111 suspended in the water body 100, as well as the remaining sediment particles 112 of smaller size that float to the water surface due to air flotation after ionization flocculation.

[0052] In some embodiments, container 1 is configured as a transparent container; when performing step S4 of absorbing flocs and other sediment particles, the flocs visible to the naked eye, the smaller sediment particles floating on the water surface, and the larger sediment particles sinking to the bottom of the water in container 1 are absorbed onto the filter paper.

[0053] Specifically, a pipette can be used to suck the flocs visible to the naked eye, the smaller sediment particles floating on the water surface, and the larger sediment particles sinking to the bottom of the water into the filter paper.

[0054] Specifically, in step S4 , when the flocs and other silt particles are absorbed in step S4 , the container 1 is illuminated with light, which can facilitate the naked eye to clearly observe the flocs and other silt particles 112 in the water body 100 in the transparent container 1 .

[0055] For example, the container 1 is illuminated by a lighting device. The light can be irradiated vertically or parallel to the surface of the water body 100. White light or other color light can be used for irradiation to facilitate observation of flocs.

[0056] The number of lighting devices may also be at least two, and the plurality of lighting devices may be placed at different horizontal positions and different height positions to illuminate the water body 100 in the container 1 from multiple directions.

[0057] In some embodiments, the ionization flocculation of step S3 and the absorption of flocs and other sediment particles of step S4 are repeated until no flocs are visible to the naked eye, and then the step of separating out sediment is performed.

[0058] Specifically, until no flocs visible to the naked eye appear, the sediment is separated out in step S5.

[0059] In some embodiments, in step S2, when preparing and weighing the filter paper, the filter paper is first dried and then weighed to obtain a weight of the filter paper of m1; the filter pore size of the filter paper is less than 10 μm.

[0060] In some embodiments, in step S3, during ionization and flocculation, the current intensity is set to one, or the current intensity is changed to two or more; that is, in the process of ionizing the water body 100, multiple current intensities can be compared to select the current intensity with the best effect of flocculation and sedimentation to form flocs.

[0061] For example, the current density can be increased from 1A / m 2 Gradually increase to 50A / m 2 At the same time, the current density corresponding to the flocculation and rapid sedimentation of suspended particles in the water body 100 can be observed and selected.

[0062] In some embodiments, in step S3, ionization flocculation is performed through an ionization device, and the ionization device is provided with an anode 210 and a cathode 220; the ionization device is provided with one or more sets; and the effect and efficiency of flocculation and sedimentation of suspended particles in the water body 100 to form flocs are also improved.

[0063] Specifically, when there are two or more sets of ionization devices, the multiple ionization devices are placed at different heights in the water body 100, or the multiple ionization devices are placed at different areas of the same height in the water body 100; that is, ionization devices can be respectively provided at different heights in the water body 100. One or more sets of ionization devices can be placed at a certain height in the water body 100.

[0064] The multiple sets of ionization devices at the same height position in the water body 100 may be dispersedly arranged in different areas. For example, the multiple sets of ionization devices are evenly distributed at the same height position in the water body 100 .

[0065] The ionization devices at different heights in the water body 100 may be distributed along the same vertical line. For example, the ionization devices at different heights in the water body 100 may be arranged on the same vertical line.

[0066] The ionization devices at different heights in the water body 100 may be distributed at intervals. For example, the ionization devices at different heights in the water body 100 may be arranged on a plurality of vertical lines.

[0067] The vertical height distances between the ionization devices at adjacent height positions may be equal, and the projections of the ionization devices at different height positions on the same horizontal plane may be evenly distributed.

[0068] In some embodiments, in step S3, during ionization flocculation, the water body 100 is made to flow, or the anode 210 and the cathode 220 are moved; or, the anode 210 and the cathode 220 are moved while the water body 100 is made to flow; this is also beneficial to improving the effect and efficiency of flocculation and sedimentation of suspended particles in the water body 100 to form flocs.

[0069] Specifically, the water body 100 or the electrode can be moved in one direction, or reciprocated in two directions, or in two or more directions in a circular manner; the moving track can be in the horizontal plane, vertical plane or three-dimensional space of the container 1. In addition, in order to avoid destroying the flocs, the moving speed of the water body 100 and the electrode is preferably less than 0.1 m / s. During the test, the moving speed of the water body 100 or the electrode can be adjusted according to the observation of the flocs.

[0070] In the method for measuring sediment content based on flocculation and sedimentation of this embodiment, in step S1, when placing the water body, the container 1 can be set as a rectangular box. The transparent container 1 can be a glass box.

[0071] In step S2, when preparing and weighing the filter paper, the filter paper can be selected from filter paper. The texture of the filter paper needs to be tough, tight, and not easy to break. Fine sand needs to be difficult to leak through the filter paper. After the filter paper is dried, it needs to absorb less water and soluble substances in the air.

[0072] In step S2, when preparing and weighing the filter paper, and in step S6, when drying and weighing the filter paper, a balance can be used for weighing. The balance can be a product of the prior art.

[0073] In step S3, during ionization flocculation, the electrodes (anode 210 and cathode 220) are placed in the water body 100 and energized. When the current passes through the electrodes, an electrochemical reaction occurs on the electrode surface, and the generated ions have good flocculation performance. These ions effectively capture the suspended sediment particles dispersed in the water through the action of electric field force, charge adsorption, floc sweeping and other mechanisms. In addition, the bubbles generated on the electrode surface will also help low-density suspended particles float up through flotation, further improving the separation efficiency of suspended particles and water body 100. The ionization equipment can adopt existing technology products.

[0074] Charge adsorption refers to the generation of a large number of charged ions in the water body 100 after ionization, which generates adsorbent complexes to adsorb suspended particles in the water body 100.

[0075] Floc sweeping refers to the formation of flocs after particle aggregation, that is, the flocculant generated by the electrolytic reaction gradually forms colloidal flocs in the water body 100, and these colloidal flocs achieve particle flocculation and sedimentation by adsorbing suspended particles; that is, after forming larger flocs, the flocs absorb nearby suspended particles by moving in the water body 100.

[0076] In step S4, when the flocs and the remaining sediment particles are sucked out, a pipette can be used to suck all the visible suspended matter, sediment, flocs, water body 100 in the sediment accumulation area, and floating particles on the surface of water body 100 in the transparent container 1 onto the filter paper. The pipette can be a product of the prior art, such as a pipette or a straw.

[0077] When the ionization flocculation of step S3 and the suction of flocs and other silt particles of step S4 are repeated, the ionization can be continued for a preset time until there are no flocs and other silt particles near the electrode, and then the sediment can be separated out in step S5.

[0078] The duration of each ionization can be set to 1 hour. If no more flocs visible to the naked eye appear after 1 hour, the ionization flocculation step can be terminated.

[0079] In step S5, when the silt is precipitated, the filter paper and the silt can be dried after the filter paper stops dripping water.

[0080] In step S6, when drying and weighing the filter paper, the filter paper with the sediment can be placed in an oven for drying; the temperature of the oven can be maintained at 100-110° C., and the drying time can be greater than or equal to 2 hours.

[0081] like Figure 3 As shown, in step S6, when drying and weighing the filter paper, the following step of detecting the drying time may be included:

[0082] Step S61, detecting the drying time: drying the filter paper with the silt for the first time, the first drying time can be set to 2h, and then weighing the filter paper with the silt after the first drying; then, extracting the filter paper with the silt after the first drying for the second drying, and weighing the filter paper with the silt after the second drying; if the difference between the weights weighed after the second drying and the first drying is less than 2% of the weight weighed after the first drying, the first drying time meets the requirement, and the filter paper with the silt can be dried according to the first drying time; otherwise, if the difference between the weights weighed after the second drying and the first drying is greater than or equal to 2% of the weight weighed after the first drying, the first drying time does not meet the requirement, and the filter paper with the silt needs to be dried further, and the drying can be continued for 2h until the difference in the weight of the filter paper with the silt after drying is less than 2% of the weight weighed last time.

[0083] like Figure 1 As shown, in step S6, when drying and weighing the filter paper, different drying times are selected according to the different weights of the filter paper and the sediment; for the filter paper and the sediment with heavier weight, the drying time is extended.

[0084] In step S6, when the filter paper is dried and weighed, the dried filter paper and the sediment are moved into a dryer and cooled to room temperature before being weighed.

[0085] In step S7, when calculating the sand content of the water body, the weight of dry sand in the water body 100 is m2-m1.

[0086] The above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

[0087] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0088] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0089] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A method for measuring sediment content based on flocculation sedimentation, characterized in that: The following steps are involved: Placing a water body: measuring the volume of the water body whose sand content is to be measured, and obtaining the volume of the water body as V; and placing the water body in a container; Prepare and weigh the filter paper: weigh the filter paper to be used, and obtain the weight of the filter paper as m1; Ionization flocculation: ionizing the water in the container so that the suspended sediment particles in the water are aggregated and concentrated through flocculation to form flocs with suspended sediment particles; setting the current intensity to one or changing the current intensity to two or more; in the process of ionizing the water, using multiple current intensities for comparison, and selecting the current intensity with the best effect of flocculation and sedimentation to form flocs; The water body is made to flow, or the anode and the cathode are moved; or the anode and the cathode are moved while the water body is made to flow; Absorbing the flocs and other sediment particles: Absorbing the flocs with the suspended sediment particles and other sediment particles in the container onto the filter paper; Sedimentation: filtering the flocs with the filter paper to precipitate the suspended sediment particles and aggregate them with the remaining sediment particles to obtain total sediment particles; Drying and weighing the filter paper: drying the filter paper with the total sediment particles, and weighing it again to obtain a total weight of the filter paper and the total sediment particles as m2; Calculate the sediment content of the water body: Calculate the sediment content c of the water body by formula (1), c is the sand content of the water body, m1 is the weight of the filter paper, m2 is the total weight of the filter paper and the total sediment particles, and V is the volume of the water body.

2. The method for measuring sediment content based on flocculation sedimentation according to claim 1, characterized in that: The suspended sediment particles include sediment particles in a suspended state in the water body and sediment particles that have settled to the bottom of the water after ionization flocculation, and the remaining sediment particles include sediment particles with smaller particle sizes that float on the water surface after ionization flocculation and sediment particles with larger particle sizes that sink to the bottom of the water; The silt particles include suspended silt particles in the flocs and other silt particles in the water body, and also include other impurities in the water body.

3. The method for measuring sediment content based on flocculation sedimentation according to claim 1, characterized in that: The container is set as a transparent container; when the step of absorbing flocs and other sediment particles is performed, the flocs visible to the naked eye, the smaller sediment particles floating on the water surface and the larger sediment particles sinking to the bottom of the water in the container are absorbed onto the filter paper.

4. The method for measuring sediment content based on flocculation sedimentation according to claim 3 is characterized in that: During the step of sucking up the flocs and other sediment particles, light is irradiated on the container.

5. The method for measuring sediment content based on flocculation sedimentation according to claim 3 is characterized in that: The steps of ionization flocculation and absorption of flocs and other sediment particles are repeated until no flocs are visible to the naked eye, and then the step of separating out the sediment is performed.

6. The method for measuring sediment content based on flocculation sedimentation according to claim 1, characterized in that: When preparing and weighing the filter paper, the filter paper is first dried, and then weighed to obtain a weight of the filter paper of m1; the filter pore size of the filter paper is less than 10 μm.

7. The method for measuring sediment content based on flocculation sedimentation according to any one of claim 1, characterized in that: The ionization flocculation step is performed through an ionization device, wherein the ionization device is provided with an anode and a cathode; the ionization device is provided in one set or more than two sets.

8. The method for measuring sediment content based on flocculation sedimentation according to claim 7, characterized in that: When the ionization devices are provided in two or more sets, the plurality of ionization devices are respectively placed at different heights in the water body, or the plurality of ionization devices are respectively placed at different areas at the same height in the water body.

9. The method for measuring sediment content based on flocculation sedimentation according to claim 1, characterized in that: The container is configured as a transparent container, and light is irradiated on the container when the flocs and other sediment particles are absorbed.

10. The method for measuring sediment content based on flocculation sedimentation according to any one of claims 1 to 9, characterized in that: When drying and weighing the filter paper, the following steps are involved: Detection of drying time: drying the filter paper with silt for the first time, and then weighing the filter paper with silt after the first drying; then, extracting the filter paper with silt after the first drying and drying it for the second time, and weighing the filter paper with silt after the second drying; if the difference between the weights weighed after the second drying and the first drying is less than 2% of the weight weighed after the first drying, the first drying time meets the requirement, and the filter paper with silt is dried according to the first drying time; otherwise, if the difference between the weights weighed after the second drying and the first drying is greater than or equal to 2% of the weight weighed after the first drying, the first drying time does not meet the requirement, and the filter paper with silt continues to be dried until the difference in the weight of the filter paper with silt after drying is less than 2% of the weight weighed last time.

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