110 results about "Sedimentation process" patented technology

The invention discloses an efficient dehydration treatment device for waste engineering slurry and a dehydration method of the efficient dehydration treatment device. Relates to the technical field of rapid dehydration of high-water-content waste slurry. The dehydration treatment device comprises a waste slurry pipeline conveying module, a precise dosing module, a multi-stage pipeline mixing and dissolving module and a geotextile tube bag dehydration module which are connected in sequence. Accurate dosing can be achieved according to the water content of the slurry in the slurry sedimentation tank, negative effects on the flocculation effect of the slurry due to too much or too little flocculants are avoided, use of flocculant materials is reduced, the material cost is greatly reduced, meanwhile, the flocculants are arranged, the cationic flocculant YAPAM is adopted as the flocculants, and the flocculation effect of the slurry sedimentation tank is improved. The flocculant has the advantages of small dosage, good flocculation effect, environmental protection and the like. In the flocculating settling process of the slurry, soil particles in the slurry can be rapidly gathered and precipitated through the effects of electric neutralization and adsorption bridging, and the formed floc is stable in structure, large in size and not prone to being broken.

The invention relates to the technical field of intelligent sampling, in particular to an unmanned aerial vehicle water sediment intelligent sampling method and system based on rotational flow sorting, and the method comprises the following steps: collecting disturbance trajectory and rotational flow data, identifying a stable inlet, screening an alignment interval, executing screen mesh alignment, and generating a sampling record. According to the method, stable section calibration is formed by superposing wind speed direction fluctuation and rectifying plate track change, the screening range is locked to an alignment interval in combination with multi-parameter mapping of the rotating speed and the particle density, and the sediment movement state is captured in a layered mode in a deposition layer through a screen; a whole-process sampling sequence is constructed by a collaborative time sequence of rectification action and screen operation, so that real water disturbance characteristics can be dynamically extracted, sediment movement rules can be matched, the sampling trigger response accuracy is improved, and the screening alignment precision under multi-factor coupling is enhanced; the target section is accurately captured under the interlaced interference of the airflow disturbance and the particle settling process, and the particle layered structure is stably kept.

The invention discloses a method for leaching valuable elements in silicate rare earth ore, and belongs to the technical field of rare earth metallurgy. According to the method, the valuable elements in the rare earth concentrate are efficiently leached by adopting the processes of low-temperature sulfating intensified roasting, clinker hydrometallurgy, leached ore pulp flocculation and filter cake washing. The strengthened low-temperature sulfating roasting process avoids the problems of high energy consumption, serious equipment corrosion, low rare earth leaching rate and complex waste gas treatment (SO2 escape) of a traditional process, meanwhile, silicate rare earth ore decomposition is achieved, the effect of a back-end leaching process is remarkably improved, compared with an acid pickling process, the hydrometallurgy process reduces the acid consumption and the wastewater treatment difficulty, and the production cost is reduced. The leaching ore pulp flocculating settling process is beneficial for improving the industrial production efficiency, the filter cake washing process is beneficial for further improving the leaching rate of valuable elements, the silicate rare earth ore concentrate resources are utilized to the maximum extent on the premise of being environmentally friendly, and a technical path is provided for industrial utilization of silicate type rare earth ore.

The present invention discloses a device and method for simulating the water flow and sedimentation process in a river channel in an arid area. The simulation device comprises an experimental water flume, a river channel simulation component, a first water tank, and a second water tank. At least one drainage outlet is provided at the downstream end of the experimental water flume. The river channel simulation component is arranged in the experimental water flume, and comprises a first simulation layer and a second simulation layer stacked in sequence in an up-down direction. The first simulation layer is paved with finely crushed walnut shells and has a channel with a water inlet near the upstream end and a water outlet near the downstream end. The second simulation layer is paved with gravel. The first water tank is filled with water and is connected to the water inlet of the channel through an inlet pipe. Part of the water flowing into the channel flows to the downstream end, and the other part seeps into the second simulation layer. The second water tank is connected to the drainage outlet of the experimental water flume through the outlet pipe. In this way, the process of the width and depth of a river channel in an arid area decreasing as it moves downstream can be simulated.

The application discloses a ship-mounted in-situ calibration device and method for a seabed suspended sediment concentration profile probe, which comprises a cylindrical water tank main body, an ASM and a support frame thereof, a driving motor, a rotating paddle, a cylindrical support, a water pump and a valve. The method comprises the following steps: horizontally arranging the ASM in the water tank through the support frame; extracting in-situ seawater on the ship deck for calibration by using the water pump; driving the paddle by the motor to uniformly mix the water sample; and extracting the water sample by opening the water extraction valve at different time intervals, wherein the water extraction valve is arranged on the side of the water tank and is consistent with the measurement elevation of the ASM, is used for extracting the water sample at the same elevation of the ASM, and tests the consistency of each sensor of the ASM. The water sample concentration can well cover the in-situ concentration range under normal circumstances by sampling at different time intervals in the static water sedimentation process. The in-situ seawater is extracted on the spot for calibration, so that the difference between the particle size range and the concentration range of the sediment suspension liquid prepared in the laboratory and the actual observation station is avoided.

The utility model discloses an agricultural drinking water pretreatment device which comprises a device shell, a coagulating sedimentation cavity is arranged in the device shell, the coagulating sedimentation cavity comprises a flocculation cavity, a water distribution cavity and a filler cavity, the flocculation cavity and the filler cavity are respectively positioned on two sides of the coagulating sedimentation cavity, a plurality of flocculation plates are arranged in the flocculation cavity, and the water distribution cavity and the filler cavity are respectively positioned on two sides of the coagulating sedimentation cavity. The flocculation plate is provided with a plurality of flocculation holes, the flocculation holes are uniformly distributed in the flocculation plate, the top of the flocculation cavity is provided with a first through hole, the first through hole is connected to the water distribution cavity, and the water distribution cavity is provided with a second through hole and is connected to the filler cavity; through the structures such as the coagulating sedimentation cavity and the flocculation plates, the efficient coagulating sedimentation process is realized, the removal effect of impurities such as suspended solids in drinking water is greatly improved, and the treatment quality of the drinking water is remarkably improved.

The invention relates to the technical field of wastewater treatment, in particular to a coagulating sedimentation medium, a preparation method thereof and a wastewater treatment method. The coagulating sedimentation medium is prepared from the following raw materials in parts by weight: 4 parts of waste for synthesizing cubic zirconia, 0-2 parts of brown aluminum oxide and 0-4 parts of quartz sand. The coagulating sedimentation medium provided by the invention not only has an adsorption effect but also has an acceleration effect on rotational flow sedimentation due to the difference of centrifugal force in the sedimentation process of treating wastewater, so that the sewage treatment time can be shortened, and the water quality fluctuation impact can be coped with.

The invention discloses an antimony and manganese removal water treatment system and method based on feedforward-feedback control, and belongs to the technical field of water treatment. When the antimony concentration of inflow water is abnormal, pH pre-adjustment is carried out through an acid adding device before coagulation, after the pH is precisely reduced to a target value, an iron salt coagulant is added, antimony is removed through coagulation and precipitation procedures, the pH is adjusted back through an alkali adding device before filtration, and it is ensured that the effluent water reaches the standard. And when the manganese concentration of the settled water exceeds the standard, synchronous removal of manganese is realized by utilizing the adsorption effect of specific filter sand in the filter tank. According to the method, the detection device and the control system are integrated, the feed-forward-feedback mechanism is used for optimizing pH regulation and control and agent adding in real time, the problems that in a traditional method, pH control is difficult, low-concentration antimony removal is unstable, the manganese adsorption capacity is limited and the like are effectively solved under the condition that a process unit does not need to be newly added, cooperative, efficient and stable removal of antimony and manganese is achieved, and the method is suitable for large-scale industrial production. And the discharged water continuously meets the limit value requirements of the Sanitary Standard for Drinking Water.

This application relates to the field of water treatment technology and discloses a method for defluoridating fluoride-containing wastewater. The method includes introducing fluoride-containing wastewater from the bottom into a crystalline granulation fluidized bed filled with natural garnet seed crystals, thus fluidizing the seed crystals. Simultaneously, calcium chloride solution and sodium hydroxide solution are pumped in from the side and below to adjust the Ca / F molar ratio and pH value of the reaction system, promoting an induced crystallization reaction between fluoride ions and calcium ions in the aqueous phase on the surface of the garnet seed crystals to precipitate calcium fluoride. After the reaction stabilizes, the treated water is discharged from the top of the bed to obtain defluorinated effluent. This method addresses the homogeneous nucleation phenomenon in the aqueous phase caused by high influent fluoride concentration shocks, and combines this with subsequent coagulation and sedimentation processes to remove suspended particles. This application overcomes the shortcomings of traditional sedimentation methods, which easily generate loose flocs, achieving a stable transfer of fluoride to a dense solid phase, effectively reducing the production of water-containing sludge, and ensuring the quality of the effluent from the defluoridation system under high load fluctuations.

This invention relates to the field of car wash water treatment technology. The invention provides a car wash water treatment device, comprising a wash bay, a sedimentation tank, a wastewater tank, a cyclone separator, and a clear water tank. The wash bay is used to accommodate cars, wash and clean them, and collect the wash water. The sedimentation tank is connected to the wash bay and is used to accommodate the wash water discharged from the wash bay and to settle impurities in the wash water. The sedimentation tank has an overflow outlet. The wastewater tank is connected to the overflow outlet of the sedimentation tank and can accommodate the wash water overflowing from the overflow outlet. The cyclone separator is connected between the wastewater tank and the clear water tank, and can separate the wash water in the wastewater tank into clear water and transport the clear water to the clear water tank. This technical solution solves the technical problems of poor water purification effect and high energy consumption in the sedimentation process of related car wash water treatment devices.

This invention discloses a method for producing alcohol-based suspensions for produced water, comprising multiple steps including selecting alcohol-based solvents, adding dispersing agents, adding functional solid particles, precisely adjusting the pH value of the system, thorough mixing and homogenization, and filtration and purification. The alcohol-based suspension produced by this invention has uniformly dispersed internal solid particles and a large specific surface area, exhibiting extremely strong adsorption and capture capabilities. It can rapidly adsorb fine suspended particles, emulsified oils, organic impurities, and other pollutants in produced water, showing significant treatment effects on produced water with high solids content and high oil content. The removal rate of suspended solids can reach over 90%, and the removal rate of oil pollutants can reach over 85%, far superior to traditional flocculation and sedimentation processes. The treated water quality can meet discharge standards or be reused.

The invention provides a separation device for gas reservoir exploitation, and belongs to the technical field of gas reservoir exploitation. Comprising a tank body, the top of the tank body is fixedly connected with a feeding pipe and an exhaust pipe, the bottom of the tank body is fixedly connected with a water drainage pipe, an oil drainage pipe and a cooperative driving mechanism, and the cooperative driving mechanism is used for processing emulsion in fluid and connected with the tank body and the feeding pipe. According to the device, the cooperative driving mechanism is arranged, so that fluid can be automatically layered after entering the tank body, the time for mutual sedimentation and layering of a gas phase, an oil phase and a water phase is shortened, the fluid separation efficiency of the device is improved, and before the fluid enters the space between the first partition plate and the second partition plate, emulsion is treated and demulsified, and the separation efficiency is improved. And the fluid is more efficient in the sedimentation process, and the quality of the treated fluid is higher.

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

The present invention provides a method and system for numerical simulation of carbonate rock deposition, comprising the following steps: step 1, constructing a planar grid model including multiple grid points based on the actual study area; step 2, obtaining environmental physical parameters, population parameters, and the population size of each grid point at the current deposition simulation time, and determining the current population size of each grid point at the current deposition simulation time based on a Generalized Lotka-Volterra model applicable to multiple species; step 3, determining the carbonate rock deposition thickness based on a carbonate rock vertical yield model; step 4, determining the depositional topography at the previous deposition simulation time, and obtaining the current depositional landform; step 5, using the current depositional landform as the depositional topography at the next deposition simulation time, using the current population size as the population size at the next deposition simulation time, and repeating steps 2 to 4 until the deposition simulation ends. The present invention improves the rationality and accuracy of numerical simulation of carbonate rock deposition.

The utility model belongs to the technical field of sewage treatment, and discloses sewage mud-water separation treatment equipment for ceramic production, which comprises a sewage storage barrel, an annular shell is fixedly connected to the top end in the sewage storage barrel, and a plurality of sections of electric telescopic rods are mounted in the annular shell; a mounting block is fixedly connected to the output end of the multi-section electric telescopic rod, a filtering layer is mounted in the mounting block, a telescopic feeding pipe is fixedly mounted at the top end of the filtering layer, a water outlet valve is mounted at the bottom end of the surface of the sewage storage barrel, and a water flowing pipe is fixedly connected to the end face, away from the sewage storage barrel, of the water outlet valve. The multi-section electric telescopic rod pushes the filter layer to move downwards, so that sediments in sewage are blocked when the filter layer moves downwards, then the filter layer can intercept large-particle suspended solids in the sewage, and the long sedimentation process of the sewage in the sewage treatment equipment is reduced.

The utility model discloses a stepped efficient thickener with a partitioned pretreatment device. Relates to the technical field of solid-liquid separation equipment, and comprises a thickener and a pretreatment device communicated with the thickener, the pretreatment device is used for flocculation, and the thickener is used for sedimentation; the pretreatment device comprises a main body, a stirring device is arranged in the main body, the top of the main body is provided with a liquid inlet chute for materials to enter and a feeding pipe for a flocculant to enter, the bottom of the main body is provided with a discharge port, the side wall of the upper part of the main body is provided with a supernatant overflow port, the middle of the main body is provided with a liquid discharge port, and the liquid discharge port is communicated to the inside of the thickener through a conveying pipeline; according to the efficient thickener, flocculation and sedimentation processes can be carried out in different areas, the thickening efficiency is improved, the occupied area of the thickener and equipment type selection are remarkably reduced, the energy consumption and the environmental influence are further reduced, and the operation flexibility, the maintenance convenience and the like are improved.

The invention relates to the technical field of sewage treatment, and particularly discloses an integrated high-density sedimentation tank with sludge external circulation, which comprises a support bracket, a cavity, a water inlet pipe, a blow-off pipe and a partition plate, and is characterized in that a separation part is arranged outside the cavity, and the separation part generates eddy current in a separation shell through forward and reverse rotation of paddles, so that the separation part is separated from the water inlet pipe and the blow-off pipe; sludge is enriched and concentrated on the surface of the collecting piece, then high-density sludge is sent back to the top of the cavity through a return mechanism to form a sinking sediment blanket, and therefore the sedimentation process of sewage is accelerated, chemical flocculants do not need to be added, the sedimentation speed and efficiency are remarkably improved, and the operation cost is reduced.

The utility model discloses a sewage treatment device which comprises an annular rolling mechanism rolling on a sewage treatment tank opening, and the annular rolling mechanism comprises a crossing beam crossing two sides of the sewage treatment tank opening; driving roller assemblies are mounted at the two ends of the crossing beam respectively; material spraying mechanisms are assembled and connected to the two sides of the crossing beam correspondingly, each material spraying mechanism comprises a material pumping pipe, the bottom of each material pumping pipe communicates with a plurality of material spraying pipes, the side walls of the material spraying pipes communicate with a plurality of spraying dispersing pipes, and a plurality of material spraying holes are formed in the spraying dispersing pipes; a dispersing plate is fixedly connected to the discharging end of the spraying pipe, and a plurality of spraying holes are formed in the dispersing plate; and a splitter plate is fixedly connected to the dispersion plate. A large amount of treatment agent is dispersed and sprayed around the circumference of the sewage pool in the continuous annular movement process of the cross beam-spraying dispersion pipe, so that the chemical agent is uniformly dispersed in the settling process.

The invention provides a method and a device for determining a settlement path of a propping agent in a crack. According to the spatial scale parameter and the settlement time parameter, determining a corresponding target crack parameter; determining fluid response parameters of the target crack at different space-time positions by using a first module of a preset proppant settlement prediction model according to the target crack parameters; wherein the proppant settlement prediction model is a neural network model with a composite loss function, and the composite loss function comprises a control equation residual term and a multi-physical boundary constraint term; a second module of a preset proppant sedimentation prediction model is used for determining the sedimentation velocity and position change information of proppant particles in the target crack according to the fluid response parameters; and according to the settlement velocity and the position change information, determining a settlement path of the proppant particles in the target crack in the whole prediction time range. Therefore, the defect that the particle size sedimentation process is difficult to comprehensively reveal in the prior art is overcome.

The invention provides a method and a system for simulating and predicting diffusion and deposition amount of dredged objects in a port channel area. The method comprises the steps that a condition parameter database is constructed as an initial condition, a basic database is constructed as a boundary condition, a multi-field coupled hydrodynamic model is solved, and hydrodynamic field parameters are obtained; constructing a dredged object migration-sedimentation model including diffusion, sedimentation and scouring-sedimentation processes; parameters of the hydrodynamic model and the dredged object migration-deposition model are corrected through a Kalman filtering algorithm; simulating and predicting the diffusion range and the deposition amount of the dredged objects on the basis of the corrected model; and verifying a simulation prediction result, generating a dredged material diffusion range diagram and a deposition amount statistical report, and performing visual display. According to the method, the multi-field coupled hydrodynamic model and the dredged object migration-deposition model are constructed, and model parameters are dynamically corrected in combination with real-time monitoring data, so that the diffusion range and the deposition amount of the dredged objects are accurately and efficiently simulated and predicted.

The utility model provides a magnetic coagulation sedimentation rapid hardness removal system for mine water, which aims to solve the technical problems of high medicament consumption and low hardness removal efficiency in a high-density sedimentation process, and comprises a raw water inlet unit, a hardness removal unit, a magnetic coagulation unit, a magnetic sedimentation unit, a magnetic recovery unit and a dosing unit which are connected through pipelines, the chemical adding unit comprises a controller, and a water inlet flow meter, a water inlet quality monitor, a water outlet quality monitor, an image acquisition instrument and a chemical adding pump which are respectively in communication connection with the controller; the controller is used for controlling the adding amount of the medicament adding pump according to the measured water inlet flow value, the measured pH value and the measured calcium and magnesium ion content of the inlet water, the measured pH value and the measured calcium and magnesium ion content of the outlet water and the alumen ustum image of the magnetic floc precipitation condition. The system disclosed by the utility model is good in hardness removal effect, realizes unattended operation, adopts intelligent chemical feeding instead of manual operation compared with a traditional high-density sedimentation tank, realizes that the total hydraulic retention time is shortened by more than 25%, and achieves the effect of rapid hardness removal.

The utility model relates to the technical field of wool product processing, in particular to a wastewater treatment sedimentation tank for wool product processing, which comprises a fixing plate, the upper end of the fixing plate is sequentially and fixedly connected with a first supporting plate, a second supporting plate and a third supporting block from left to right, and the right part of the upper end of the fixing plate is fixedly connected with a sedimentation frame. The upper end of the first supporting plate is fixedly connected with a feeding frame, the upper end of the second supporting plate and the upper end of the third supporting block are fixedly connected with connecting frames, the two connecting frames are connected in a penetrating mode, the connecting frame on the left portion is connected with the feeding frame in a penetrating mode, and the connecting frame on the right portion is connected with the precipitation frame in a penetrating mode. And the lower part of the right end of the precipitation frame is fixedly connected with a supporting pipe in a penetrating manner. According to the wastewater treatment sedimentation tank for wool product processing disclosed by the utility model, the sedimentation frame and the connecting frame are arranged, so that the filtration and sedimentation processes in the wastewater treatment process for wool product processing can be facilitated.

The application discloses a kind of low reagent input's organic wastewater advanced treatment method and device.The method includes the following steps: anaerobic biological iron sulfur reduction reaction process: elemental sulfur, ferric iron, iron sulfur reduction sludge, organic carbon-containing and electrically negative group organic pollutant wastewater is mixed sufficiently, anaerobic biological elemental sulfur reduction and iron reduction reaction are carried out, in situ directional generation polysulfide and ferrous sulfide;Nucleophilic substitution reaction process: electrically negative group organic pollutant and polysulfide carry out nucleophilic substitution reaction, and remove electronegativity group to generate reduced state organic product;Oxidation reaction process: ferrous sulfide and dissolved oxygen reaction produce hydroxyl radical, and oxidize degradation reduced state organic product, produce elemental sulfur and ferric iron;Sludge sedimentation process: sediment flows back to anaerobic biological iron sulfur reduction reaction zone, and clarified water is discharged.The application realizes the advanced degradation and detoxification of refractory organic pollution, with the advantages of low reagent input, low cost, no secondary pollution.

The utility model relates to an aluminum liquid sediment type launder structure which comprises a furnace eye direct flow groove, a three-way sedimentation tank assembly, a filter box and a reducing direct flow groove which are connected in sequence, the launder depth of the three-way sedimentation tank assembly is larger than that of the furnace eye direct flow groove, and aluminum liquid flows into the three-way sedimentation tank assembly from the furnace eye direct flow groove, is subjected to secondary sedimentation and then flows into the reducing direct flow groove through the filter box. And the water flows into a mold plate after passing through the filter box and the variable-diameter straight flow groove. The launder structure is composed of a first variable-diameter sedimentation tank, a three-way launder, a deepened straight flow tank and a second variable-diameter sedimentation tank (with an overflow port), in the using process, the first variable-diameter sedimentation tank is in butt joint with a furnace eye launder, and then the rear end of the first variable-diameter sedimentation tank is sequentially connected with the three-way launder, the deepened straight flow tank and the second variable-diameter sedimentation tank; the rear end of the second reducing sedimentation tank is butted with the filter tank. And the molten aluminum falls at a low position through the first variable-diameter sedimentation tank and flows through a high position in the second variable-diameter sedimentation tank after slag is settled at the low position, so that the whole sedimentation process is completed.

The application provides a mercury-contaminated soil treatment process and a mercury-contaminated soil treatment system. The mercury-contaminated soil treatment process comprises: treating the mercury-contaminated soil by using a thermal desorption heating process, so that mercury in the mercury-contaminated soil is thermally desorbed from the mercury-contaminated soil in a gaseous form and forms mercury vapor; cooling the mercury vapor, so that at least part of the mercury in the mercury vapor is converted from the gaseous form to a liquid form and forms liquid mercury; performing a sedimentation process on the liquid mercury, in which the liquid mercury is combined with suspended material to form a mercury suspension and is suspended in an upper layer of the liquid, and the mercury in the mercury suspension is recovered and treated. The technical scheme provided by the application can solve the technical problem of poor mercury removal effect of the mercury-contaminated soil treatment process in the prior art.

The application provides a non-ferrous metal mine flotation wastewater treatment equipment and method, and relates to the field of flotation wastewater treatment. The non-ferrous metal mine flotation wastewater treatment equipment and method comprises a wastewater treatment tank, the wastewater treatment tank is in a circular structure, a drain pipe is installed at the lower end of the side wall of the wastewater treatment tank, a sludge sedimentation layer in communication with the wastewater treatment tank is installed at the bottom end of the wastewater treatment tank, a flow disturbing assembly is arranged at the middle position of the wastewater treatment tank, and a sludge scraping assembly coaxial with the flow disturbing assembly is arranged at the middle position of the sludge sedimentation layer. The non-ferrous metal mine flotation wastewater treatment equipment and method can realize the effect of continuously treating wastewater by rotating the sewage in the wastewater treatment tank and performing a series of processes such as dosing, centrifugal layering, centrifugal sedimentation, coagulation and flocculation fishing and drainage, and continuously supplementing new sewage and continuously dosing during the coagulation and flocculation treatment and sludge sedimentation process.

This invention relates to a method for disposing of backwash sludge from underground water treatment plants. It primarily addresses the problem of increased treatment costs and resource waste associated with existing methods of reusing large amounts of sludge generated during wastewater recovery at underground water treatment plants. The disposal method mainly includes the following steps: Step 1, solidifying the sludge; Step 2, adding the solidified sludge to a polyaluminum chloride product, followed by pressure filtration and sedimentation to obtain a compound product. This method for disposing of backwash sludge from underground water treatment plants can prepare a composite coagulant from the waste generated during production, which can then be reused in the coagulation and sedimentation process of domestic sewage treatment, saving resources and treatment costs.

The invention discloses an anti-floating and anti-settling vertical shaft structure and a tunneling construction method thereof, and belongs to the technical field of vertical shaft tunneling. The structure comprises an outer lining arranged along the well wall and a bottom plate arranged at the well bottom, at least one set of steel sleeves are arranged on the inner side of the outer lining, a concrete pile is arranged at the bottom of the bottom plate, the lower end of the concrete pile extends into a bearing stratum below, and a set of vertical steel bars are reserved on the bottom plate in the circumferential direction of the bottom plate; an annular beam is arranged at the intersection of the set of vertical steel bars and the set of steel sleeve extending steel bars, and the vertical steel bars and the steel sleeve extending steel bars are anchored into annular beam steel bars. Based on the structural design of the concrete pile, the bottom plate is connected with the lower rock soil, the structural design can reduce the construction thickness of the bottom plate on the basis of ensuring the structural stability and reduce the occurrence of sedimentation, and can provide a vertical supporting force for the bottom plate in the sedimentation process to avoid the occurrence of sedimentation; and a downward pulling force can be applied to the bottom plate when the bottom plate receives a floating acting force, so that the occurrence of floating is avoided.

This invention discloses a dynamic monitoring system for sediment plumes in deep-sea mining areas and its multi-module fusion analysis method, belonging to the field of deep-sea environmental monitoring and marine engineering technology. The system includes fixed and mobile monitoring units. The fixed unit consists of an in-situ optical and three-dimensional sonar observation base station, a sediment trap array, and a multi-parameter sensor array, deployed in the mining area. The mobile unit includes an AUV equipped with a multispectral lidar and an ROV equipped with a binocular vision system and a miniature sampler. The analysis method uses multi-source data fusion, combined with dark channel defogging and pyramid optical flow method to extract the plume motion field, constructing a physics-data dual-driven model to simulate the plume diffusion and sedimentation process, generating a three-dimensional dynamic heat map in real time, and setting intelligent early warning thresholds based on diffusion radius and sedimentation flux. This invention achieves multi-scale, high-precision, and real-time dynamic monitoring and evaluation of plumes, effectively supporting the optimization of deep-sea mining operations and environmental compliance supervision.

The utility model discloses equipment for settling ammonium sulfate, which comprises a shell, a feeding hole and a discharging hole are arranged on the shell, a spiral channel is arranged at the top in the shell, and an air suction pipe is arranged in the shell; a flow guide plate is arranged in the shell, a motor is fixedly connected to the side surface of the shell, a first main shaft is rotatably connected to the output end of the motor, a first connecting ring is fixedly connected to the other end of the first main shaft, a connecting protruding rod is fixedly connected to the side portion of the first connecting ring, and an impact ring is arranged on the connecting protruding rod. According to the device, the spiral channel, the guide plate, the connecting convex rod and the impact ring are matched, so that the generation of bubbles is effectively reduced, the descending speed of an ammonium sulfate solution is reduced, the ammonium sulfate solution is slowly precipitated to the bottom, the impact ring continuously impacts the bottom, residual bubbles can be effectively vibrated out, the precipitation effect is improved, and the precipitation process is ensured to be smoother.