76 results about "Ocean sediment" patented technology

The invention provides a biochar repairing agent for marine sediments and a preparation method of the biochar repairing agent, and belongs to the technical field of repairing agents. The preparation method comprises the following steps: carbonizing straws, modifying by phosphoric acid and concentrated nitric acid, depositing ferroferric oxide-titanium dioxide, loading UiO-66-(COOH) 2 on the surface, coupling cyclodextrin-MOF and chitosan, crosslinking, performing magnet separation, washing and drying to obtain the biochar repairing agent for the marine sediments. The biochar repairing agent for the marine sediments prepared by the invention has a relatively large specific surface area and a plurality of coordination groups, can better fix heavy metal ions in the marine sediments, also has a photocatalytic degradation effect on organic pollutants, and is good in mechanical strength, easy to store and transport, safe, environment-friendly and easy to separate; wide application prospects are realized.

The invention discloses a submarine sediment detecting and sampling device and a working method thereof, and belongs to the field of marine sediment sampling. The submarine sediment detecting and sampling device comprises an underwater propeller, an underwater walker and a detecting and sampling device which are sequentially arranged from top to bottom; the detection sampler comprises a supporting frame, an insertion driving air cylinder fixed to the top end of the interior of the supporting frame and an equilateral triangle mounting plate fixed to the bottom end of a piston of the insertion driving air cylinder, and a sampling pipe is fixed to the center of the equilateral triangle mounting plate. A temperature gradient detection assembly, a salinity gradient detection assembly, an acoustic detection assembly and a GPS positioning assembly are respectively fixed at the corners of the equilateral triangle mounting plate, and a bubble detection assembly is also fixed on the equilateral triangle mounting plate. By adopting the submarine sediment detecting and sampling device and the working method thereof, a plurality of areas can be detected after the submarine sediment detecting and sampling device is put once, the detection efficiency is improved, and the detection cost is reduced.

The invention provides a method for measuring the total alkalinity of pore water in salt lake water or marine sediments, aiming at the characteristics of huge alkalinity variation range of a salt lake sample and small sample amount of the pore water in the sediments, the traditional step-by-step dilution alkalinity measuring method is complicated to operate, and simple dilution of the sample can change the balance of a water body carbonate system. The accuracy of total alkalinity determination is influenced, and the uncertainty is large. The method for measuring the total alkalinity of the salt lake water with the high total alkalinity range and the marine sediment pore water with the low sample amount can be used for batch measurement of the total alkalinity of the samples, repeated dilution is not needed, one-time rapid measurement is achieved, the sample measurement accuracy is improved, and manpower and material resources are saved. In the method, the alkalinity of the prepared NaOH standard solution is calibrated more accurately based on the standard curve adding method, the effective measurement range can be expanded by adjusting the concentration of the prepared NaOH standard solution, and the method is wide in applicability.

The invention discloses a marine fungus fusarium keratinoides and application thereof. The fusarium keratinoides capable of efficiently producing the perindoprine is screened from marine sediments, and the content of the produced perindoprine can reach 561.7 mu g / L after the fusarium keratinoides is fermented in a GPY liquid culture medium, so that possibility and a foundation are provided for breeding strains suitable for industrial large-scale production of the perindoprine in the future; mass spectrum, hydrogen spectrum and carbon spectrum data of the separated perindoprine are completely consistent with perindoprine data reported in literatures.

The invention relates to an on-site synchronous quantitative determination method for three pathogenic bacteria in marine sediments, and belongs to the technical field of pathogenic bacteria detection.The three pathogenic bacteria are vibrio parahaemolyticus, vibrio alginolyticus and escherichia coli O157, and the method comprises the steps that marine sediment samples are collected and put into a centrifugal tube filled with sterile seawater, and are evenly mixed and centrifuged; taking the supernate as a template for LAMP amplification, respectively adding the supernate into detection tubes of an LAMP reaction system preloaded with the three pathogenic bacteria, and sealing. Placing the detection tube into a detection channel of a portable electronic isothermal gene amplification instrument, and determining a delta C4-t curve, a dv / dt-t curve and Tp; and after the determination is finished, substituting the Tp value into a working curve formula to calculate the content / concentration of the three pathogenic bacteria of the corresponding marine sediment sample in the detection tube. According to the method disclosed by the invention, Bst DNA polymerase and betaine are not needed in the reaction, so that the cost of LAMP analysis is reduced by at least 50%, the operation is simple and convenient, and simultaneous quantitative determination of the three pathogenic bacteria can be completed on site within 1h.

The utility model discloses marine sediment zircon ore rapid detection equipment, relates to marine sediment detection technical field, including the bottom plate, on the bottom plate is fixedly connected with two vertical plate, the two vertical plate front and back symmetry sets up, and between the two vertical plate is movably connected with a line roller, the vertical plate on the front side is fixedly connected with a first motor, and the vertical plate on the back side is fixedly connected with a second motor. An output shaft of the first motor is fixedly connected with a wire roller, a rope is wound on the wire roller, and the tail end of the rope is fixedly connected with a sampling mechanism, the sampling mechanism is used for rapidly sampling marine sediments, and spectral analysis is carried out on the sediments through the box body, the collecting tank and the spectrograph, so that rapid detection of zircon ore in the sediments is realized; the structure is simple and the operation is convenient.

The invention discloses an in-situ suspended sediment concentration and flux prediction system based on conductivity data, and relates to the technical field of marine environment in-situ monitoring, the in-situ suspended sediment concentration and flux prediction system comprises a data processing and visualization platform, the data processing and visualization platform is in communication connection with the following modules: a data acquisition module, a data processing module, a data processing module and a data processing module, the method is used for extracting multi-dimensional water body data collected in an in-situ environment from a database. According to the method, a continuous vertical concentration-flow velocity matrix is generated through coupling corrected suspended sediment concentration data and flow velocity data, a flux prediction model is established in combination with historical data, a nonlinear relationship between sediment transportation flux and flow velocity-concentration is analyzed, and a random forest algorithm is adopted to determine the flow velocity-concentration of the sediment. The flow velocity, the conductivity interval depth and the corrected suspended sediment concentration serve as input variables, a sediment flux prediction value is output, static and dynamic comprehensive prediction of sediment fluxes at different moments and at different positions is achieved, and a quantitative analysis tool is provided for ocean sediment dynamic research and mineral environment evaluation.

The invention discloses a method for extracting DNA from marine sediments, and belongs to the technical field of DNA extraction. The method comprises the following steps: adding sodium hexametaphosphate and a cell lysis solution into the marine sediment, uniformly mixing, incubating and centrifuging to obtain supernate; adding a chloroform-isoamyl alcohol mixed solution into the supernate, uniformly mixing, centrifuging, and removing an organic phase to obtain a water phase; and adding linear polyacrylamide and sodium chloride into the water phase, uniformly mixing, adding ethanol, precipitating in a dark place, and centrifuging to obtain the DNA extract. Compared with the prior art, the method provided by the invention has the advantages that the DNA in the marine sediment can be effectively extracted, the extraction amount is high, the concentration is high, and the obtained DNA can better meet the metagenome sequencing requirement and the subsequent PCR reaction requirement.

The invention discloses a marine sediment heavy metal extraction device which comprises an extraction tank, a grinding and conveying mechanism and a stirring mechanism, and further comprises a top seat movably mounted at the top of the extraction tank and a screening mechanism fixedly mounted at the bottom of the grinding and conveying mechanism, and the grinding and conveying mechanism is fixedly mounted on one side of the top of the top seat; the extraction tank is rotatably mounted at the top of the base, a side box is fixedly mounted on one side of the base, and a driving mechanism extending into the lifting seat is fixedly mounted in the side box. The driving mechanism is electrified to operate and simultaneously drives the extraction tank, the stirring mechanism, the grinding and conveying mechanism and the screening mechanism to cooperatively work, so that grinding, screening, rotary stirring and mixing of the marine sediments are realized, full contact and reaction of an acid dissolving solution and the marine sediments are ensured, and complete dissolution and extraction of heavy metals in the marine sediments are realized; the marine sediment heavy metal extraction speed and effect are improved.

The invention discloses a natural gas hydrate reservoir formation time analysis method, device and system, and relates to the technical field of marine natural gas hydrate exploration, and the formation time analysis method comprises the following steps: collecting a marine sediment sample in a natural gas hydrate drilling core column; carrying out a photoluminescence age test on the marine sediment sample; establishing an age-depth model of the natural gas hydrate sample according to the obtained photoluminescence age and sediment depth of the ocean sediment sample; and according to the age-depth model of the natural gas hydrate drilling, calculating the reservoir deposition time of the natural gas hydrate, and further determining the formation age of the natural gas hydrate. According to the method, the formation time of the natural gas hydrate can be accurately determined, interference caused by uncertain reservoir forming time of the natural gas hydrate is avoided, and a geological exploration foundation is laid for further revealing a reservoir forming mechanism of the natural gas hydrate.

The invention discloses a marine sediment heavy metal extraction device which comprises an extraction tank, the side end of the upper portion of the extraction tank is connected with a feeding pipe, a feeding hopper is arranged above the other side of the feeding pipe, the feeding pipe and the feeding hopper are connected through a support, and a gap is kept between an outlet and an inlet of the feeding pipe and the feeding hopper; a screening mechanism is arranged at the top of the extraction pipe and comprises a rotating shaft and a plurality of screening assemblies distributed on the rotating shaft, and when one screening assembly rotates to the gap, the feeding hopper, the screening assemblies and the feeding pipe form a closed and coherent channel; according to the device, high efficiency, automation and cleanness of extraction of the heavy metals in the marine sediments are realized through innovative dynamic sealing sieving, spiral stirring-filter pressing cooperation, intelligent temperature control separation and a modular absorption system.

The invention belongs to the field of ocean geophysical exploration, and particularly provides a device and a method for monitoring migration of CO2 in sediment based on a time domain reflectometry, the monitoring device comprises a reaction kettle, a vacuumizing and saturation system, a supercritical carbon dioxide preparation and injection system, a temperature control system, a dielectric constant test control system and a data acquisition and processing system; the dielectric constant test control system comprises a time domain reflection tester and a time domain reflection sensor assembly, wherein the time domain reflection sensor assembly comprises a plurality of axial time domain reflection sensors inserted from the bottom of the reaction kettle and a plurality of radial time domain reflection sensors inserted from the side surface of the reaction kettle. According to the device and the method, anisotropic dynamic monitoring of the continuous migration process of supercritical CO2 in the ocean sediment can be realized, and combined characterization of CO2 saturation and CO2 plume front migration dynamics in the sediment sample in the CO2 migration process can be realized, so that accurate evaluation of the storage efficiency and leakage risk of CO2 in the ocean sediment is realized, the monitoring effect is good, and the operation is simple.

The present invention discloses an in-situ testing system for sediment pore water chemical parameters, comprising a docking fixture, an electric push rod, a guide rail, a connecting rod, a probe, a perforated rubber cover, a large end cap, a microelectrode connector, a small end cap, a copper tube, a water collection funnel, a permeable ceramic, a microelectrode assembly, a fixing sleeve, a flange, an electronics compartment, a connecting block, a submersible pump, and a three-way valve. Based on microelectrode detection technology, the present invention employs an electric push rod to achieve stable vertical displacement of the probe, passively collects pore water through the permeable ceramic, and replaces pore water samples through a pump and valve. The system is used to continuously detect chemical parameters such as pH, H2S, and Eh in marine sediment pore water. The present invention has the advantages of a simple and reliable structure, low cost, strong environmental adaptability, low disturbance, easily replaceable parts, high precision, and high efficiency.

The invention discloses a marine sediment detecting and sampling device, and relates to the technical field of marine sediment sampling, the marine sediment detecting and sampling device comprises a sampling assembly, and further comprises a flow stabilizing assembly which is located at the bottom of the sampling assembly and used for reducing disturbance to submarine sediments when the sampling assembly rapidly descends; the distance sensor is used for monitoring the depth from the steady flow assembly to the seabed; the plugging assembly is arranged in the flow stabilizing assembly and is used for plugging the bottom of the sampling assembly and limiting the sampling assembly at the same time; and the hydraulic system is used for controlling the plugging assembly to release the limiting of the sampling assembly and controlling the plugging assembly to release the plugging of the sampling assembly when the distance sensor detects that the distance between the flow stabilizing assembly and the seabed is smaller than a preset value. Flow guide is realized under the action of the flow stabilizing hole and the flow guide plate, so that the sampling equipment quickly descends under the action of gravity, and turbulent flow caused by impact on seabed sediments is reduced.

Method for manufacturing composite cement, wherein a supplementary cementitious material is obtained from a marine sediment deposit fed by erosion of volcanic rock to form sedimented pozzolan by dredging the sediment deposit, dewatering the dredged sedimented pozzolan to a water content of below 20 wt.-% with respect to the total weight of sedimented pozzolan and water, washing the sedimented pozzolan with fresh water to a chloride content below 0.2 wt.-% with respect to the total solids, and drying to provide the supplementary cementitious material, and mixing the supplementary cementitious material with a hydraulic cement to provide the composite cement, as well as use of the obtained supplementary cementitious material for making composite cements and supplementary cementitious material and composite cement obtainable by the method or use.

This invention discloses a method for detecting metal nanoparticles in marine sediments, comprising the following steps: (1) mixing the marine sediment to be tested with water to prepare a suspension; (2) centrifuging the suspension to obtain a supernatant, which is a suspension containing metal nanoparticles; (3) performing sp-ICP-MS analysis to determine the concentration and particle size distribution of the metal nanoparticles. The detection method of this invention can extract and determine various common metal nanoparticles, including nanoparticles containing Au, Ag, Cu, Ti, or Zn. This method can detect both the concentration and particle size distribution of metal nanoparticles in sediments, is simple to operate, easy to control, requires a small sample volume, has a low detection limit, and is suitable for the extraction and determination of metal nanoparticles in marine sediments from different regions.

The invention relates to the technical field of ocean sediments, and discloses an ocean sediment sample filtering and purifying device and method.The ocean sediment sample filtering and purifying device comprises a box, a filtering and purifying mechanism is arranged in the box and comprises a filtering and purifying cavity formed in the box, and a first moving sliding groove is formed in the end wall of the filtering and purifying cavity; a first moving lead screw is rotationally connected between the end walls of the first moving sliding groove, and the first moving lead screw is in power connection with a first moving motor, so that a sample can be detected, the position of stone or plastic in the sample can be detected and determined, the stone or the plastic can be conveniently picked out, and the stone and the plastic in the sample can be picked out; the purity of the sample is improved, the sample can be drilled when the sample is taken out, the size of a drilled hole can be adjusted, the size of the drilled hole can be adjusted according to the size of stones or plastics, and the stones and the plastics with different sizes can be conveniently picked out.

This invention discloses a method for testing rare earth elements in marine sediment pore water. This method, belonging to the field of chemical analysis technology, specifically comprises the following steps: treating the pore water using iron co-precipitation and simultaneously detecting it using laser ablation coupled with inductively coupled plasma mass spectrometry. This method provides an effective testing solution for situations where pore water samples are insufficient. The reagents involved are conventional and inexpensive, eliminating the need for expensive pretreatment equipment and offering good economic benefits. Furthermore, the miniaturized sample pretreatment and analysis model employed in this invention exhibits environmentally friendly, low-consumption, and low-pollution characteristics.

The application discloses a modified anode for a marine sediment microbial fuel cell and a preparation method of the modified anode and the marine sediment microbial fuel cell, and the preparation method comprises the following steps: S1, obtaining a primary anode; S2, nitrogen is introduced into a first PBS buffer solution to perform nitrogen exposure treatment, and dopamine hydrochloride is added to obtain a first electrolyte; S3, the primary anode is immersed into the first electrolyte, and electro-deposition is performed on the primary anode by a first cyclic voltammetry scanning method to obtain a PDA modified anode; S4, Fe3O4 powder is added into a second PBS buffer solution to obtain a second electrolyte; and S5, the PDA modified anode is immersed into the second electrolyte, and electro-deposition is performed on the PDA modified anode by a second cyclic voltammetry scanning method to obtain a PDA / Fe3O4 modified anode. The PDA / Fe3O4 composite is used to modify the anode, the electrochemical performance of the anode is improved, and a proper amount of amino acid is added into the sediment, so that the organic matter conversion and electron transmission efficiency of the microbial fuel cell are improved, and the electricity generation performance of the microbial fuel cell is improved.

The invention relates to the technical field of detection, and particularly discloses a method for detecting 2-aminothiazole in marine sediments in a sea area near an offshore wind field, which comprises the following steps: extracting a sample by using a mixed solution, then deriving by using hexyl chloroformate, converting a target compound 2-aminothiazole into N-(thiazole-2-yl) carbamic acid n-hexyl ester, and detecting the 2-aminothiazole in the marine sediments in the sea area near the offshore wind field by using the N-(thiazole-2-yl) carbamic acid n-hexyl ester. And enriching and purifying the obtained derivative by using a solid-phase extraction small column, and detecting by using a liquid chromatography-mass spectrometry system. The method provided by the invention can be used for efficiently, quickly and accurately analyzing and detecting, and is suitable for detecting 2-aminothiazole in marine sediments.

The invention discloses a marine sediment mineral data integration method and system, and the method comprises the steps: configuring header field information of a marine sediment mineral standard data table, receiving to-be-integrated sediment mineral data, and carrying out the matching query of the header field information of the to-be-integrated sediment mineral data; performing standardized naming on mineral names of the to-be-integrated sediment mineral data by utilizing the mineral name configuration library table, storing the updated to-be-integrated sediment mineral data and updating the marine sediment mineral standard data table; performing duplicate removal operation on data in the marine sediment mineral standard data table based on the header field information combination; and performing error checking operation on the data in the sea sediment mineral standard data table after the duplicate removal, wherein the data after the error checking operation is completed is used for exporting to obtain a sea sediment mineral integrated data set. According to the method, the integration efficiency and quality are improved, and standard and reliable basic data are provided for mineral resource exploration, marine scientific research, big data application and the like.

The invention relates to the technical field of underwater exploration, and particularly provides an underwater exploration device. The device comprises a fixing mechanism, a shell and an exploration mechanism, the exploration mechanism comprises a fixing support, the fixing support sleeves the outer side of the shell, the fixing support comprises an inner ring support, the shell is provided with a first slide way, the inner ring support can rotate along the first slide way, the fixing support comprises an outer ring support, and the outer ring support and the inner ring support are mutually fixed. The outer ring support is provided with a camera mechanism and an auxiliary supporting mechanism, one end of the auxiliary supporting mechanism is fixed to the outer ring support, and the other end is in contact with the shell. The exploration mechanism can rotate along the shell, the camera shooting mechanism can collect image information near the device in all directions, an auxiliary supporting mechanism of the exploration mechanism can clean attachments on the surface of the shell, and the situation that ocean sediments are accumulated on the surface of the exploration mechanism and marine organisms are attached to the device is avoided.

The present application belongs to the field of analytical chemistry, and discloses a non-equilibrium analysis method for acid volatile sulfides in marine sediments, comprising the following steps: determining the absorbance value of a marine sediment wet sample, determining the moisture content of the marine sediment wet sample, determining a standard curve, and calculating the sulfur content in the sediment dry sample. The method greatly shortens the nitrogen blowing time to 3-10 min, i.e. the pretreatment time, by controlling the high consistency of the sample and standard pretreatment process and the high consistency of each analysis step between different samples. The standard curve is obtained by adding different volumes of standard solution to the blank sample and performing the same pretreatment steps as the sample, so as to obtain the true concentration of the sample. Compared with the prior art, the present application has the characteristics of high precision and accuracy, greatly shortened analysis time, and small measurement error.

The invention discloses marine sediment detection sampling equipment and a method thereof, and relates to the technical field of sediment detection sampling. The marine sediment detecting and sampling equipment comprises a device box, a sampling pipe is arranged below the device box, the marine sediment detecting and sampling equipment further comprises a supporting column rotationally installed in the device box, a driving part for driving the supporting column to rotate in a reciprocating mode is arranged in the device box, and an installation hole is formed in the bottom of the supporting column. A connecting column is longitudinally mounted in the mounting hole in a sliding manner; wherein the sampling pipe is installed at the bottom of the connecting column, and when the supporting column rotates in a reciprocating mode, the connecting column ascends and descends in the installing hole in a reciprocating mode; the sampling pipe can effectively destroy the structure of the sediment, reduce the frictional resistance of the pipe wall and improve the sampling efficiency of the ocean sediment.

The invention relates to a wet-type rotary precise sample separation device and method for marine sediment particle size analysis. The wet-type rotary precise sample separation device comprises an anti-sedimentation sample injection unit, a rotary sample separation unit and a driving unit, the anti-sedimentation sample introduction unit comprises a sample introduction funnel and a dynamic homogenizer arranged in the sample introduction funnel, and a liquid outlet is formed in the bottom of the sample introduction funnel; the rotary sample separation unit is positioned below a liquid outlet of the anti-sedimentation sample injection unit and comprises a distribution disc capable of rotating around a vertical axis, and at least two stations for accommodating receiving containers are arranged on the distribution disc along the circumferential direction; and the driving unit is in transmission connection with the distribution disc and is used for driving the distribution disc to rotate. The device is compact in structure, easy and convenient to operate and high in sample separation precision, the influence of gravity sedimentation on sampling uniformity can be overcome in a mechanical mode, and it is ensured that each trace sample separated from original suspension liquid is highly consistent with an original sample in particle size composition, so that the requirement for high-precision laser particle size analysis is met.

The invention provides a method and a system for dynamically monitoring layered collection of marine sediments based on Internet of Things. The method comprises the following steps: acquiring original marine environment parameters collected in real time; calculating to obtain a self-adaptive forgetting factor according to saliency indicating interface transition between sediment layers in the original marine environment parameters, and performing Kalman filtering on the non-image original marine environment parameters by adopting the self-adaptive forgetting factor to obtain filtered environment parameters; selecting a feature subset from a feature set having preset spatial correlation with the current image area, determining division features from the feature subset, and extracting sediment morphological features by adopting a random uniform forest; fusing the filtered environmental parameters and the sediment morphological features to obtain a comprehensive state feature vector; and based on the comprehensive state feature vector, calculating to obtain the adjusted collection depth and collection speed of the marine sediment collection equipment by using a preset layered collection model, and sending the adjusted collection depth and collection speed to a control system of the collection equipment.

The invention discloses a microbiological degradation plastic quantitative analysis and evaluation method based on a Raman spectrum technology, and relates to the technical field of microbiological degradation plastic determination.The method comprises the following steps that a marine sediment sample and a to-be-decomposed plastic sample are collected, and an experimental group culture medium and a control group culture medium for evaluating the plastic decomposition degree are manufactured; collecting the Raman spectrogram of the experimental group and the Raman spectrogram of the control group, and obtaining the plastic decomposition degree before and after plastic degradation by using a weight loss method; obtaining a relation curve graph of a peak intensity ratio and a plastic decomposition degree from the Raman spectrogram by adopting a peak intensity ratio method, constructing a marine microorganism degradation plastic evaluation model, analyzing the peak intensity ratio of the Raman spectrogram, and executing corresponding measures to deal with the evaluation result. A gravity sampling technology, a culture medium microorganism technology, a Raman spectrogram acquisition technology, a Raman spectrogram processing technology and a modern information technology are tightly combined, so that real-time and comprehensive monitoring on the degradation degree of the microorganisms on the plastic is achieved.

The application discloses a natural gas hydrate reservoir formation age analysis method, device and system, relates to the technical field of marine natural gas hydrate exploration, and comprises the following steps: collecting marine sediment samples in a natural gas hydrate drilling core column; performing a photoelectric age test on the marine sediment samples; establishing an age-depth model of the natural gas hydrate samples according to the obtained photoelectric age and sediment depth of the marine sediment samples; calculating the sedimentation time of the natural gas hydrate reservoir according to the age-depth model of the natural gas hydrate drilling, and further determining the formation age of the natural gas hydrate. The method can accurately determine the formation age of the natural gas hydrate, avoids the interference caused by the uncertainty of the natural gas hydrate reservoir forming time, and lays a geological exploration foundation for further revealing the natural gas hydrate reservoir forming mechanism.

The invention belongs to the technical field of ocean sediments, and discloses a seabed sediment accumulation rate in-situ monitoring device which comprises a device body and a monitoring mechanism, the monitoring mechanism comprises a thickness monitoring mechanism, a weight monitoring mechanism and a shape monitoring mechanism, and the device body comprises a monitoring cylinder. The thickness monitoring mechanism and the weight monitoring mechanism are arranged in the monitoring cylinder, the thickness monitoring mechanism is used for monitoring the thickness of accumulated sediments, the weight monitoring mechanism is used for monitoring the weight of the accumulated sediments, and the shape monitoring mechanism is used for monitoring the appearance of the accumulated sediments. According to the invention, the device can monitor the deposition thickness, the deposition shape and the deposition weight, can monitor the deposition thickness, the deposition shape and the deposition weight, is perfect in monitored data and high in accuracy compared with the prior art, and effectively avoids the problem of inaccurate monitoring data caused by cavities in the deposition.

The utility model provides a sediment capturer suitable for coral reef coast power environment, which belongs to the field of ocean sediment power observation equipment and comprises a fixed support, a plurality of inner sleeves, a plurality of outer sleeves and a base, the fixed support is arranged on the base, and the base is connected with the fixed support through a flange seat. The outer sleeves are arranged on the fixing support and connected with the fixing support through the connecting pieces, the inner sleeves are arranged in the outer sleeves, and the inner sleeves and the outer sleeves are arranged in a clamped mode. The sediment capturer is small in size, and each part of the sediment capturer is designed to be detachable, so that the sediment capturer is convenient to carry and store; the overall weight is light, the cost is low, the design structure is simple, and laying and recycling are facilitated in a water-lung diving mode; the device can work together with hydrodynamic and sediment observation instruments, so that the observation time is effectively saved, and the efficiency is improved; the device is stable in structure and suitable for sampling and observing suspended sediment in a coral reef coast environment with active hydrodynamic conditions.