468 results about "Sedimentation" patented technology

The invention discloses a rhizosphere deposited carbon flux real-time monitoring method adopting a sensor array, and relates to the technical field of soil carbon cycle monitoring, and the method comprises the steps: determining a layered sampling depth and a horizontal concentric circle partition range based on the three-dimensional distribution characteristics of a target plant root system, and mapping the layered sampling depth and the horizontal concentric circle partition range to a preset three-dimensional grid coordinate system; gas sensors and environmental parameter sensors are deployed according to root system partitions, and a multi-dimensional sensor array is constructed. Through the three-dimensional grid coordinate system and the root system density gradient model, accurate spatial mapping of rhizosphere carbon flux is realized, high matching of sensor layout and root system biomass distribution is ensured by utilizing division of vertical layering and horizontal concentric circle partition, and the gas sensor and the environmental parameter sensor are cooperatively deployed, so that the reliability of the system is improved. The device can capture instantaneous changes such as root exudate pulse and microbial respiration, generates a continuous and consistent carbon flux data set, and provides a high-resolution dynamic observation basis for researching plant-soil-microbial interaction.

The invention discloses a salt lake brine mining method and system for hydraulically gradient-driven water replenishing and ore dissolving of a sedimentation funnel, and relates to the technical field of salt lake mineral resource development, the method comprises the following steps: S1, collecting water level data of a sedimentation funnel area, calculating gradient distribution, dividing functional areas, and generating zoning parameters; s2, based on the partition parameters, a water injection well network is arranged in the gradient direction, water injection parameters are determined according to the water level difference, and a well network scheme is generated; s3, based on a well pattern scheme, injecting the proportioning solvent into an ore bed in a layered manner to form a directional seepage field, and generating solute transport data; s4, on the basis of solute transport data, enriched brine is extracted in the collection area, the concentration is monitored, and brine parameters are generated; and S5, based on the deviation between the brine parameter and the target value, calculating the regulation amount, adjusting the injection-production parameter to maintain dynamic balance, and outputting the salt lake brine with the target concentration. By regulating and controlling the hydraulic gradient, the form of the settlement funnel is stabilized, the phenomena of stratum disturbance and ground settlement are reduced, and the ecological risk is reduced.

The invention relates to the technical field of underwater topographic surveying and mapping, in particular to a sea area water taking channel scanning survey method and system based on multi-beam measurement, and the method comprises the following steps: constructing a rigid support, fixing a depth finder through a three-way cable fastening device, and building a Boolean parameter model; sound velocity, tide level and original echo data are collected; performing space-time registration, coordinate conversion and filtering denoising on the data to generate corrected water depth; and constructing an irregular triangulation network by using hard boundary constraint, generating a digital elevation model, and extracting a siltation area. According to the invention, multi-beam wide sector scanning and multi-sensor attitude correction technologies are fused, a limited water area full-coverage measurement system is constructed, and the problems of terrain blind areas and detail loss are solved. A boundary constraint reconstruction algorithm is utilized to realize closed-loop processing from coordinate reference unification to micro-landform restoration, the accuracy of channel bottom pit capture and edge topography expression is improved, and data support is provided for sedimentation analysis.

Disclosed is a method for regulating confluence of tributaries with a large drop difference and a large angle into a trunk canal. The method includes: banking up a reservoir at an upstream end of a tributary river, and widening a water surface, such that uniform distribution of water flows is completed; then conducting scouring and energy dissipation to reduce a flow velocity and kinetic energy of the water flows; then conducting flow-slowing sedimentation, such that sediment is deposited on one side of the tributary river connected to a downstream side of a trunk stream; and then conducting flow diversion at one side of the tributary river connected to an upstream side of the trunk stream, such that an included angle of confluence of tributary river water into the trunk stream is reduced.

The utility model discloses a vertical magnetic cyclone precipitation combined device which comprises a secondary precipitation tank and a cyclone separator arranged in the secondary precipitation tank, the upper part of the cyclone separator is a cylindrical barrel, the lower part of the cyclone separator is of a conical structure, and an underflow outlet is formed in the bottom of the conical structure; a rotary magnetic system capable of generating spiral downward magnetic field force is arranged outside the cylindrical barrel; the inner wall of the cylindrical barrel is provided with a spiral magnetic conductive piece used for magnetism gathering and current stabilizing. A central overflow barrel is mounted in the cylindrical barrel, and an overflow discharge hole communicated with the secondary precipitation tank is formed in the top of the central overflow barrel; the side surface of the cylindrical barrel is connected with a tangential mud inlet pipe which is connected with a water inlet; a water outlet is formed in the top of the secondary precipitation tank. The device can be used for recovering a magnetic medium in magnetic coagulating sedimentation or a magnetic biofilm carrier in a magnetic biochemical system. The device has the characteristics of reasonable structural design, low energy consumption and wide application range, and is high in separation and recovery efficiency of the magnetic medium and the magnetic biofilm carrier.

This invention discloses an air-lift cyclone sand separator, comprising a sedimentation tank and an air-lift device. The sedimentation tank has a sand-collecting hopper at its lower end, and a hollow shaft extending vertically is placed inside the sedimentation tank. A paddle is fixed to the lower end of the hollow shaft at the upper opening of the sand-collecting hopper. A driving device is fixed to the upper end of the sedimentation tank and connected to the upper end of the hollow shaft. The air-lift device includes an air-lift tank, an air-lift pipe, an air-purge pipe, and a sand-discharge pipe. The air-lift tank is housed within and communicates with the sand-collecting hopper. The air-lift pipe passes through the hollow shaft and communicates with the air-lift tank. The air-purge pipe passes through the hollow shaft and communicates with the sand-collecting hopper. The sand-discharge pipe passes through the hollow shaft and communicates with the air-lift tank. The paddle accelerates the rotation speed of the water flow in the sedimentation tank, allowing the sand to settle better. The settled sand is concentrated in the sand-discharge hopper. The air-lift pipe drives the water flow through the air-lift tank and into the sand-discharge pipe. The air-purge pipe disperses the sand in the sand-collecting hopper, allowing the dispersed sand to enter the sand-discharge pipe with the water flow, resulting in good sand removal efficiency.

The invention relates to the technical field of offshore wind power foundation protection, in particular to a dynamic umbrella disc induced deposition device. The dynamic umbrella disc induced deposition device comprises an umbrella disc support fixedly connected with an offshore wind turbine pile foundation. The umbrella disc induction assembly comprises a rotary supporting structure installed in the umbrella disc support and a plurality of flexible blades connected and arranged in the horizontal circumferential direction of the rotary supporting structure, and the flexible blades are located at the bottom of the umbrella disc support and extend in the radial direction expanding outwards to form an umbrella disc-shaped structure; the surface of each flexible blade is provided with a sand guiding groove, and the guiding-out direction of the sand guiding groove faces the sand washing pit area below the sand guiding groove. Therefore, the technical problems that an existing anti-scouring structure lacks dynamic protection capacity and automatic repairing capacity for the scouring pit, regular maintenance and manual repairing are needed, the repairing period is long, potential safety hazards exist, and clogging is likely to be caused by solid protection are solved.

The invention discloses a method and system for predicting the scouring trend of a full-hall long-piled wharf, and belongs to the field of port engineering monitoring. The method comprises the following steps: firstly, constructing an embedded ultrasonic array monitoring system, arranging probes according to regions to realize accurate deployment and control, and synchronously acquiring acoustic data and environmental parameters; noise reduction, inversion and fusion processing are carried out on the data, and normal deposition fluctuation and abnormal scouring events are distinguished by combining shallow water acoustic modeling and a scouring mechanism recognition algorithm; and finally, predicting the current siltation state through an improved DWMA model, predicting the scouring trend by means of an improved LSTM physical hybrid model, and realizing risk visualization based on a grading early warning mechanism. The system can adapt to the dense pile foundation environment of the full-space high-pile wharf, effectively solves the problems of large blind area and high error in traditional monitoring, remarkably improves the monitoring precision and early warning timeliness, and provides powerful support for safe operation and maintenance of the wharf.

The invention provides a grit chamber, and belongs to the technical field of sewage treatment.The grit chamber comprises a chamber body and at least one grit setting assembly, the grit setting assembly is arranged in the middle of the chamber body, a plurality of grit setting channels are formed in the grit setting assembly, and the grit setting channels are obliquely arranged. The settling area is divided into multiple layers of shallow layer units by the multiple sand settling channels in the sand settling assembly, the effective settling area is greatly increased, the particle settling distance is shortened, and therefore the settling speed is increased, sand can be removed only by settling for a very short vertical distance, the fine sand removing capacity of the sand settling tank is improved, and the sand settling efficiency is improved. And the particle size of the removed object in the grit chamber is reduced to be less than 200 mu m.

The invention relates to the technical field of shield construction, in particular to a shield muck fine-grained soil content real-time detection system and deduction method based on multi-parameter fusion, and the system comprises a multi-parameter sensor unit, a data acquisition and transmission unit, a data processing and analysis unit and a display unit. According to the system, the content of fine-grained soil in muddy water separated from the muck is rapidly detected by using an intelligent densimeter after the muddy water is precipitated, a correction algorithm based on a data difference rule obtained by an indoor test is introduced, fine-grained soil content data detected by the intelligent densimeter is corrected, and a multi-parameter fusion algorithm is applied to determine the content of the fine-grained soil in the muddy water. Various processed shield muck data are comprehensively analyzed, rapid detection and analysis of fine-grained soil component changes in the shield muck are achieved, the problems that a traditional densimeter method is long in time consumption, complex in operation and poor in adaptability are solved through the system, real-time monitoring of the fine-grained soil content is achieved through the detection system, and the detection accuracy of the fine-grained soil component changes in the shield muck is improved. And a basis is provided for resource utilization of the muck.

The invention discloses a real-time monitoring and analyzing method and system for underwater settlement deformation, and belongs to the technical field of marine surveying and mapping and deformation monitoring. The method comprises the following steps: calculating wave height, wave period and wave direction elements of waves through a water surface fluctuation inversion model; carrying out denoising processing on the obtained water depth data; a gyroscope and a GNSS buoy are used for dynamic wave measurement, and sea level and wave information is separated through low-pass filtering according to the frequency spectrum characteristic difference of the sea level and waves so as to correct the attitude of the buoy; the buoy measurement data and the water depth data collected by the pressure sensor are synchronized, the water surface height right above the measurement pile is calculated in combination with a water surface fluctuation inversion model, and the real-time elevation of the water bottom is obtained; and according to the water bottom real-time elevation and the water bottom settlement grade division standard, triggering early warning of a preset grade through the data cloud platform. According to the invention, real-time monitoring of underwater settlement deformation is realized, the monitoring period is shortened, the monitoring timeliness is improved, and the underwater settlement risk is found in time.

The utility model relates to a bucket type sedimentation tank, including barrel, mud-water separation plate, water inlet pipe, deslagging pipe and water outlet pipe, the mud-water separation plate is bucket-shaped and has a first big mouth end and a first small mouth end, a plurality of mud-water separation plates are arranged in the barrel at intervals along the first direction to form a mud-water separation zone, the first big mouth end is spaced apart from the inner wall surface of the barrel, and the first small mouth end is spaced apart from the inner wall surface of the barrel. The water inlet pipe comprises a connecting section and a water distribution section which are connected, the connecting section is arranged on the barrel, the water distribution section is arranged in the first small opening ends of the mud-water separation plates in a penetrating mode, the water distribution section faces the end of the barrel, and a plurality of water distribution openings are formed in the water distribution section at intervals and located in the mud-water separation area; and at least one water distribution opening is correspondingly formed between every two adjacent mud-water separation plates. According to the bucket type sedimentation tank disclosed by the utility model, mud-water separation is realized by adopting central multi-point water feeding and bucket type sedimentation, so that the uniform water distribution capability is improved, the disturbance to a sedimentation area is reduced, the mud-water separation effect is improved, and the problem that a mud-water separation system in the related technology occupies a large area is solved.

The invention relates to the technical field of sediment prediction, in particular to a method for predicting sediment deposition in a channel based on a hydrodynamic model. Comprising the following steps: correcting the critical start-up flow velocity of the sediment according to the biomass, metabolic rate and biological membrane thickness of a microbial community to obtain a corrected critical start-up flow velocity; on the basis of the corrected critical starting flow velocity, the actual suspended sediment concentration in the navigation channel is calculated in combination with the turbulence intensity, the propagation distance and the ship draught depth of ship wake flow; according to the suspended sediment concentration, the sediment deposition amount in the channel is calculated by combining the cementation strength, the water content and the organic matter decomposition rate of the sediment on the surface layer of the riverbed. According to the method, ecological and navigation related influence factors can be comprehensively considered, and the prediction accuracy in a complex scene is improved.

This invention relates to the diagnosis of sedimentation in drainage networks, specifically providing an unmanned underwater vehicle (UUV) based maintenance decision-making method for drainage pipeline sedimentation diagnosis and waterlogging warning. The UUV of this invention consists of an integrated hull inside the pipeline and a manhole box. The integrated hull inside the pipeline includes a Doppler ultrasound module, a three-axis gyroscope, a high-definition infrared camera, a main controller, a deep learning development board, baffles, a cabin cover, a cabin, fins, towing rings, and a navigation interface. The Doppler ultrasound module, three-axis gyroscope, high-definition infrared camera, navigation interface, and deep learning development board are each connected to the main controller. The fins, towing rings, cabin cover, and baffles are connected to the cabin.

The invention provides a sedimentation system based on intelligent monitoring, which comprises a water quality monitoring device used for collecting multi-dimensional water quality parameter data of a sedimentation tank in real time and transmitting the data to a central processing platform; the digital twinborn module is used for constructing and operating a dynamic digital twinborn body of the sedimentation tank, performing state synchronization according to the received multi-dimensional water quality parameter data, and performing simulation deduction of future operation effects on different input dredging strategies to obtain predicted values of various performance indexes; the adaptive optimization control module is used for receiving the multi-dimensional water quality parameter data and driving the digital twin module to update the state to generate a plurality of candidate dredging strategies; and the candidate dredging strategies are input into the digital twin module for simulation deduction, the optimal strategy is selected from the candidate dredging strategies according to the obtained predicted values of all performance indexes and converted into a control instruction, the control instruction is sent to the dredging device, the control instruction is responded, corresponding dredging operation is executed, and the dredging efficiency and the intelligent level are improved.

The invention belongs to the technical field of river and lake bottom mud treatment, and particularly relates to a bottom mud dehydration method and device which comprises a treatment tank, a feeding pipe and a liquid injection pipe are arranged at the top end of the treatment tank, and the bottom end of the treatment tank is open; the treatment tank is provided with a precipitation cylinder in sealed connection, the bottom surface of the precipitation cylinder is fixedly connected with a group of fixing plates, and the fixing plates are fixedly connected with the treatment tank through bolts; an auxiliary electromagnet attracts a first gear to enable the first gear to be meshed with a second gear, at the moment, a connecting rod can be controlled to rotate forwards, so that the second gear drives the first gear to rotate, a lead screw can rotate to control a connecting ring to move downwards, and when the connecting ring is in a moving state, an oxidizing agent can be discharged in muddy water in a layered mode; therefore, the sufficient mixing of the oxidant in the bottom mud is improved, and the reaction rate is increased.

The invention relates to the technical field of landform prediction, in particular to a tidal flat evolution prediction method and system based on a landform model. Comprising the following steps: acquiring landform data, environmental parameter data and biological membrane characteristic data of a target tidal flat area; the landform data comprises water depth distribution and sediment porosity; the environmental parameter data comprises tidal flow velocity, fluid shear force, illumination intensity and water body temperature; the biological membrane characteristic data comprises biological membrane thickness obtained by in-situ sampling; constructing a dynamic viscosity coefficient model of the biological membrane based on the thickness of the biological membrane and the temperature of the water body; the dynamic viscosity coefficient model represents a nonlinear enhancement effect of the biological membrane on the viscosity of the sediment; establishing a biofilm growth rate feedback model based on the water depth distribution and the illumination intensity; the feedback model quantifies the coupling relationship between the biofilm growth of the sedimentation area and the microtopographic factor; according to the method, the problem of evolution prediction misalignment under the dynamic interaction of the environmental factors can be solved.

The embodiment of the utility model relates to the field of rock-soil settlement monitoring, in particular to a multi-stratum integrated layered settlement monitor. The multi-stratum integrated layered settlement monitor comprises a settlement pipe and a settlement magnetic ring, the settlement magnetic ring comprises an outer magnetic ring and an inner magnetic ring arranged on the outer side of the settlement pipe in a sleeving mode, and a supporting rod is arranged at the bottom of the inner magnetic ring and used for containing the outer magnetic ring; a plurality of transmission grooves parallel to the tangential direction of a certain ring body are formed in the outer magnetic ring, and one end of each transmission groove penetrates through the outer magnetic ring; a fixing needle is arranged in each transmission groove, and one end of each fixing needle is sleeved with a first spring used for ejecting the corresponding fixing needle out of the corresponding transmission groove. According to the embodiment, the defect that an existing layered settlement monitor cannot be used for monitoring deep hard rocks is overcome, and compared with a traditional bed rock mark and a layered mark, the drilling cost is greatly saved, stability and compatibility are improved, and the application range of strata is widened.

The invention provides a self-adaptive control system and method for a mud scraper of a secondary sedimentation tank based on computer vision and turbidity sensing. The self-adaptive control system and method are used for self-adaptive energy-saving control of the mud scraper of the secondary sedimentation tank in an urban sewage treatment plant. The method comprises the following steps: acquiring an image of a sludge accumulation area at the bottom of a tank in real time through an image acquisition device erected above a secondary sedimentation tank; identifying a sludge area by using a YOLO thickness detection model, estimating the visual thickness of sludge accumulation, comparing the visual thickness with a preset threshold value, a start-stop threshold value and a thickness interval threshold value, when the visual thickness reaches or exceeds the start-stop threshold value, starting the sludge scraper, and adjusting the running speed of the sludge scraper in a grading manner according to the interval to which the visual thickness belongs; and then the mud scraping device pauses the image recognition function, an online turbidity sensor installed at the effluent weir is started to monitor the turbidity of the water body, and the mud scraper is controlled to stop running according to the turbidity of the effluent water. The self-adaptive control of the mud scraper of the secondary sedimentation tank is realized, and the purposes of saving energy, reducing emission and prolonging the service life of the mud scraper are achieved.

A method for building a 3D model of a reservoir includes defining a pre-sedimentation model comprising a bottom surface comprising a plurality of cells, and iterating a plurality of deposition modelling steps, including simulating deposition of a layer of sediments on the bottom surface or a previously-deposited layer of sediment, each layer corresponding to a determined period of time of sedimentation and comprising a plurality of cells, and computing petrophysical parameters associated to at least a cell of the generated layer. Simulating deposition of a layer of sediments includes introducing a plurality of particles within the model, simulating transport of the particles comprising moving a particle from one cell to another or depositing the particle, and generating a layer comprising a plurality of cells, each cell associated to a thickness of deposited particles. The petrophysical parameters are computed from mineral elements and sizes of the particles deposited in each cell.

The utility model relates to a sedimentation tank capable of avoiding blockage of an inclined tube, which comprises a shell, a vertical plate is arranged on one side of the shell and divides the shell into a water inlet area and a sedimentation area, a through groove is arranged below the vertical plate and communicated with the water inlet area and the sedimentation area, a dust accumulation groove is arranged at the bottom of the sedimentation area, the inclined tube is arranged in the sedimentation area, and the inclined tube is arranged in the through groove. An aeration pipe is arranged below the inclined pipe, the aeration pipe comprises a main pipe and side pipes arranged on the two sides of the main pipe in pairs, and the pair of side pipes are connected with each other; the structure of the aeration pipe is improved, the aeration area is increased, and the stability of the aeration pipe is ensured.

This utility model relates to the field of solid-liquid separation technology, specifically an integrated solid-liquid separation device for kaolinite suspension, comprising a vertical flow sedimentation tank, a central feed pipe, a flow guiding component, and a drive component. The vertical flow sedimentation tank has a drain outlet at the bottom and an overflow weir at the top. A water collection tank is located outside the overflow weir, and water outlets are located on both sides of the water collection tank. The central feed pipe is located at the upper center of the vertical flow sedimentation tank and is connected to a water inlet pipe on one side. The flow guiding component includes a mounting base fixed inside the vertical flow sedimentation tank, and a flow guiding plate is fixed to the outer wall of the mounting base. The flow guiding plate is set at an inclined angle and has serrated protrusions on its surface. Multiple sets of ultrasonic oscillators are evenly spaced on the inner wall of the vertical flow sedimentation tank, which can realize the flow guiding control of the suspension, facilitate the extension of the material's residence time in the tank, increase the probability of particle sedimentation, and at the same time, promote particle collision and accelerate the agglomeration of kaolinite particles.

The invention discloses equipment and a method for predicting, controlling and dispatching the scouring and silting amount of a downstream river channel of a dam, which are taken into account the influence of a flood process on the scouring and silting amount of the river channel and comprehensively consider the influence of water and sediment elements and flood characteristics on the scouring and silting amount of the downstream river channel of the dam. Water surface gradient, flow, peak pattern coefficient, jacking coefficient, sediment content and sediment grading elements are incorporated to predict the erosion and deposition amount of the downstream river channel of the dam, a calculation formula structure of the erosion and deposition amount of the downstream river channel of the dam and a matched calculation method are constructed, a corresponding table of the erosion and deposition amount of the downstream river channel of the dam is compiled according to the method, and reverse derivation can be achieved through table query. When the scouring and silting amount of the downstream river channel of the dam is controlled to be a fixed value, key dispatching parameters such as reservoir outlet flow and peak pattern coefficient required to be regulated and controlled by an upstream reservoir; a reservoir management department can formulate a scientific reservoir optimization scheduling scheme through the method, technical guarantee is provided for river regime stability and bank slope protection of a downstream river channel of a dam, flood control standard improvement and shipping safety maintenance are effectively supported, and a decision basis is provided for exerting comprehensive benefits of the reservoir.

The invention discloses an active turbulent flow type sand blocking system. The active turbulent flow type sand blocking system comprises a first turbulent flow belt, wherein the first turbulent flow belt comprises a first supporting column, a first cable net and a first wind resistance plate; the plurality of first supporting columns are arranged side by side into a plurality of rows and are distributed at intervals; the first cable net is connected between every two adjacent first supporting columns in each row; and a plurality of first wind resistance plates are arranged on each row of first cable nets, and the plurality of first wind resistance plates on each row of first cable nets are distributed between the adjacent first supporting columns at intervals. According to the active turbulent flow type sand blocking system, the turbulent flow field is constructed and formed through point vortexes formed at all the wind blocking plates, the turbulent flow field is used for achieving active turbulent flow on wind-sand flow, macroscopic ordered kinetic energy efficient dissipation is conducted on the wind-sand flow, and the purposes of effective interception and sedimentation are achieved.

The utility model provides a pilot plant test system for a quick-sand high-density sedimentation tank, and the pilot plant test system comprises an adjusting area which receives a fluid to be treated and can adjust the flow of the fluid in the adjusting area; the mixing area is in fluid communication with the adjusting area, and the fluid can be subjected to coagulation treatment in the mixing area; an adding zone in fluid communication with the mixing zone, in which a loading medium can be added to the fluid; the flocculation zone is communicated with the fluid in the feeding zone, and the fluid can be flocculated in the flocculation zone; the settling zone is in fluid communication with the flocculation zone, and the fluid can be subjected to settling treatment in the settling zone to form a sludge mixture; the sludge reflux device is in fluid communication with the settling zone at the bottom of the settling zone and is configured to be capable of treating the sludge mixture to form sludge and recovery fluid; the adding device is configured to be capable of respectively adding corresponding medicaments into the mixing area, the adding area and the flocculation area; and the buffer device is in fluid communication with the sludge reflux device to receive the recycled fluid and is configured to be capable of conveying the recycled fluid to the adding area.

The invention discloses a rapid treatment device and method for neonicotinoid pesticide polluted water in a river network area, and belongs to the technical field of water treatment. The device comprises a mixing unit, a settling separation unit and an adsorption medium circulating unit, the mixing unit is provided with a tangential water inlet and an adsorption medium feeding port; the settling separation unit is used for realizing rapid gravity separation of the adsorbed medium and water; and the adsorption medium circulation unit is used for medium recovery and regeneration. The invention also discloses a special core-shell structure composite particle adsorption medium and a preparation method thereof, and a rapid adsorption treatment method based on the device. Through the physical process of eddy enhanced mixing-rapid settling separation, the problems that a traditional adsorption technology is low in treatment speed, prone to blockage and low in flux are solved, and the device and the method are particularly suitable for emergency treatment of sudden and large-flow trace neonicotinoid pesticide polluted water in river network areas and have the advantages of being rapid in response, large in treatment flux, reliable in operation and low in cost.

The utility model discloses an automatic surface water monitoring system, which comprises a sampling module for sampling a water body and conveying the sampled water body, and is characterized by comprising a precipitation module and a first measurement module which are connected with the sampling module, and a conveying module arranged on the precipitation module, and the second measuring module is connected with the precipitation module through a conveying module. The sedimentation time of the sampling water body in the second sedimentation tank is prolonged according to the turbidity of the water body, the turbidity of the sampling water body is further reduced, the influence on the total phosphorus measuring unit in the second measuring module is reduced, and the data accuracy of the total phosphorus measuring unit is improved.

The invention discloses an undisturbed soil bulk density measuring method and measuring device based on sediment characteristics, and the undisturbed soil bulk density measuring method comprises the following steps: sampling undisturbed soil, putting the undisturbed soil into a measuring bottle, and injecting water to a standard water level to obtain a water-soil mixed solution and stirring; the measuring bottle is placed in an NFC induction area on the soil bulk density measuring table, an NFC chip sticker at the bottom of the measuring bottle is inducted, the induction time serves as the sedimentation starting time of soil particles in the measuring bottle, and the sedimentation starting time of the soil particles is transmitted to a data terminal to be recorded; moving the measuring bottle to other places for standing until the soil particles are completely deposited at the bottom of the container; the measuring bottle is placed in the NFC sensing area again to sense the NFC chip patch, the sensing time serves as the settling ending time of the soil particles, the laser distance measuring sensor is controlled to be started through the controller, and the distance between the upper surface of the wet sediment and the laser distance measuring sensor and the distance between the bottom of the measuring bottle and the laser distance measuring sensor are measured respectively; and transmitting the acquired data to a data terminal to calculate the volume weight of the undisturbed soil.

The application discloses a cobalt-rich crust resource distribution circle division method and system, an electronic device and a storage medium. The method comprises the following steps: obtaining preset geological sedimentary environment data; wherein the preset geological sedimentary environment data comprises oceanic crust age data, sedimentation rate data and preset near-bottom shallow stratigraphic profile data; determining first region data according to the oceanic crust age data and the sedimentation rate data through a preset discrimination model; wherein the preset discrimination model is constructed by the coupling effect of a sedimentation rate parameter and an oceanic crust age parameter; performing topographic constraint correction on the first region data according to a preset topographic constraint parameter to obtain second region data; and performing crust region analysis according to the second region data and the preset near-bottom shallow stratigraphic profile data to obtain a target cobalt-rich crust region. The embodiment of the application can effectively improve the efficiency and accuracy of cobalt-rich crust circle division. The application can be widely applied to the field of resource development.

The application discloses a numerical simulation method for nitrogen and phosphorus release of lake and reservoir sediment, and comprises the following steps: step 1, nitrogen and phosphorus migration process division; step 2, calculation of sedimentation flux; step 3, calculation of lithogenic flux; step 4, calculation of release flux; and step 5, optimization of release flux calculation. The method fully considers the dynamic resuspension process of the sediment and the response of the oxidation-reduction environment in the nitrogen and phosphorus release process of the sediment in the deep-water lake and reservoir, realizes continuous dynamic simulation of the nitrogen and phosphorus sedimentation-lithogenesis-re-release process at the water-sediment interface, more scientifically and accurately simulates the nitrogen and phosphorus endogenous release law, and effectively improves the calculation precision of the nitrogen and phosphorus release process, which plays an important role in improving the water safety guarantee of the deep-water lake and reservoir in China.