129 results about "Urban waste" patented technology

The invention discloses an urban garbage cleaning path dynamic adjustment method and device, equipment and a medium, and relates to the technical field of artificial intelligence, historical garbage collection data, urban activity data, seasonal change data and weather condition data in a city are acquired and preprocessed; establishing a dynamic garbage generation quantity prediction model based on a long short-term memory network, and training and testing the dynamic garbage generation quantity prediction model by using the processed data; inputting the to-be-predicted urban activity data and the meteorological data into the target dynamic garbage output prediction model to output a garbage output prediction value; an urban garbage cleaning path is planned based on a garbage output predicted value by using an ant algorithm and a local search strategy, and the urban garbage cleaning path is dynamically adjusted and optimized based on real-time garbage output and traffic condition data, so that the cleaning path of the garbage cleaning vehicle is dynamically adjusted. The resource allocation flexibility and adaptability and the garbage treatment efficiency are improved, and the urban environmental sanitation level is improved.

The present invention provides a device and method for the resource utilization of urban waste incineration slag, which relates to the technical field of slag waste recycling. The device for the resource utilization of urban waste incineration slag includes an equipment frame and a crusher installed on the equipment frame. It further includes a flow and precipitation component, a water addition component, and a resource recovery component installed on the equipment frame. The crusher transfers the crushed slag to the water addition component. The water addition component is used to add water to the ash slag and make it flow into the flow and precipitation component. After operation and precipitation, it is then discharged onto the resource recovery component. It also includes multiple groups of stirring components for stirring the slurry in the flow and precipitation component. The device and method for the resource utilization of urban waste incineration slag, by setting the flow and precipitation component, can obtain precipitation within the operation time compared with a fixed sedimentation tank, and can be flipped and dumped, and flushed with high-pressure water, making it easier to clean the internal slurry and preventing blockage.

The invention discloses an urban garbage collection and transportation scheduling method and system based on path optimization, and relates to the technical field of urban garbage collection and transportation and intelligent scheduling optimization, and the method comprises the steps: collecting multi-source original data, carrying out the standardization and time-space registration, and generating the structured observation data of vehicles, roads and collection and transportation points; constructing a dynamic garbage quantity prediction model according to the structured observation data, and predicting garbage increment and liquid level trend of each collection and transportation point; generating a task package and establishing a mapping relation based on a dynamic garbage quantity prediction model result in combination with road passage, vehicle load and time window constraints; and constructing a multi-target path optimization model on the basis of the mapping relation and the constraint, outputting an optimal driving path of the vehicle, and converting a path optimization result into a scheduling instruction. According to the method, the task package is generated on the basis of the dynamic garbage quantity prediction result in combination with road traffic, vehicle load and time window constraints, hierarchical matching of task targets and vehicle resources is achieved, and therefore the reasonability of task allocation and operation feasibility are improved.

The present invention belongs to the technical field of material dehydration, and particularly relates to a dehydration device for an urban waste biomass-based composite phase change material, which comprises a bracket. A roll press filter is installed on the bracket. The roll press filter includes two side plates, two pairs of driving rollers, two guide rollers, two filter belts with mesh holes, and a connecting frame. Two hollow brush barrels driven by a gear set are rotatably connected between the two side plates. The hollow brush barrels have bristles that contact the filter belts. A drying box is installed on the bracket, and a rotating spiral frame is arranged in the drying box. The material after being filter-pressed by the roll press filter enters the drying box for drying. The rotating spiral frame and the stirring rods make the material turn over. Under the action of the gear set, the rotating hollow brush barrels brush off the material on the filter belts through the bristles, reducing the adhesion of the material and ensuring the effect of subsequent filter-pressing of the filter belts on the material. The moving inclined plate reciprocates through a moving mechanism to break the material, reducing the stacking of the material and improving the drying effect.

The invention discloses an intelligent urban garbage treatment optimization scheduling method, and relates to the technical field of intelligent urban garbage treatment and optimization scheduling, and the method comprises the steps: collecting garbage weight data of a garbage collection point, collecting real-time load data and position data of a garbage truck, and generating a garbage distribution map; based on garbage weight data in the garbage distribution map, an improved K-means clustering algorithm is adopted to divide garbage collection and transportation areas, and the garbage accumulation level of each area is calculated; based on the garbage accumulation level and the real-time load data, a multi-target genetic algorithm is adopted to calculate the shortest collection and transportation path of each area, and a garbage truck scheduling scheme is generated; and according to the garbage truck scheduling scheme, allocating garbage truck tasks, and carrying out cooperative scheduling on garbage trucks in adjacent areas based on the position data. According to the method, through cross-regional cooperative scheduling, the utilization rate of garbage truck resources is increased, the problem of overload or scheduling imbalance caused by excessive local garbage accumulation is reduced, and garbage collection and transportation are more elastic and adaptive.

The invention discloses an urban garbage removal and output prediction method and system based on deep learning, and the method comprises the following steps: S1, obtaining a road video image, analyzing the garbage distribution and density, predicting the garbage distribution evolution, and estimating the garbage amount of a cleaning region; s2, according to the estimated garbage amount and sweeping area distribution, a sanitation vehicle is dispatched for sweeping, a video image in sweeping is collected, and the rotating speed and the vehicle speed of a sweeping disc of the vehicle are adjusted; and S3, the difference between the actual garbage amount and the estimated garbage amount is analyzed and used for correcting the estimated garbage amount. Intelligent management of environmental sanitation work is achieved, garbage distribution and cleaning amount can be efficiently estimated, a scheduling scheme and cleaning parameters can be dynamically adjusted according to actual conditions, the cleaning efficiency and quality are greatly improved, meanwhile, through data analysis and model optimization, the accuracy and reliability of the system are enhanced, and the cleaning efficiency and quality are improved. The improvement of the urban environmental sanitation level and the reasonable utilization of resources are effectively promoted.

The invention discloses a waste pipeline filling material, a preparation method and an application method, the waste pipeline filling material comprises a composite waste curing agent and mucky soft soil; the composite waste curing agent is formed by compounding dry powder and water; the dry powder comprises slag powder, carbide slag and desulfurized gypsum. The waste pipeline filling material disclosed by the invention is prepared by completely adopting the solid wastes, namely the slag powder, the carbide slag and the desulfurized gypsum as the curing agent to cure the sludge soft soil, has the advantages of wide raw material source, simplicity in preparation, high strength, low cost and the like, can fully recycle the solid wastes, and is low in energy consumption, low in emission and suitable for industrial production. And urban waste pipelines can be effectively filled, surface collapse accidents caused by structural damage of the urban waste pipelines are avoided, and positive significance is achieved for the ecological environment and urban development.

The invention discloses an urban waste recycling system and method, and relates to the technical field of environmental protection and resource reutilization, and the method comprises the steps of waste centralized collection, filtration, waste liquid circulation, sorting, physical recovery, chemical recovery, biotransformation, energy recovery, material restoration and special resource recovery. The waste centralized collection is connected with the filtration; the filter is respectively connected with the waste liquid circulation and the sorting; sorting is connected with physical recycling, chemical recycling, biological conversion, energy recycling, material repairing and special resource recycling, and the method integrates the sorting technology, the physical recycling method, the chemical recycling process and the biological conversion process, so that valuable substances in urban waste can be efficiently separated out and reused; the raw materials can be converted into high-quality raw materials and enter a production cycle again, so that the resource recovery rate is increased, the quality and market value of the recovered materials are improved, and sustainable utilization of resources is promoted.

The invention discloses an urban garbage classified collection and scheduling method based on the Internet of Things, and relates to the technical field of urban garbage classified collection, and the method comprises the steps: deploying an intelligent garbage can with the filling rate and environmental parameter perception capability in each region of a city, and uploading the collected state data to an edge gateway of the region through a low-power wide area network; the edge gateway performs localized priority evaluation based on the received real-time state data of each intelligent garbage can in combination with the capacity information, the last clearance time and the attribute of the area where the intelligent garbage can is located, and generates a dynamic priority score of each garbage can; when the dynamic priority score of any dustbin exceeds a preset response threshold value, the edge gateway triggers an event reporting mechanism and sends a clearance alarm containing position and priority information to a regional dispatching center; and on the basis of receiving the clearance alarm, the regional dispatching center combines weather forecast, festival calendar and regional people flow density data to carry out trend prediction on the garbage cans which are not alarmed yet and have high filling risks.

The invention belongs to the technical field of material dehydration, and particularly relates to urban garbage biomass-based composite phase change material dehydration equipment which comprises a support, a double-roller filter press is mounted on the support and comprises two side plates, two pairs of transmission rollers, two guide rollers, two filter pressing belts with meshes and a connecting frame, and the connecting frame is mounted on the support. Two hollow brush cylinders driven by a gear set are rotationally connected between the two side plates, the hollow brush cylinders are provided with bristles in contact with the filter pressing belt, a drying box is installed on the support, and a rotating spiral frame is arranged in the drying box. Materials subjected to filter pressing of the roller filter press enter the drying box to be dried, the materials are turned over through the rotating spiral frame and the stirring rod, and under the action of the gear set, the materials on the filter pressing belt are brushed off through the bristles of the rotating hollow brush cylinder, so that material adhesion is reduced, and the subsequent material filter pressing effect of the filter pressing belt is guaranteed; and the moving inclined plate reciprocates through the moving mechanism to break the materials, so that material stacking is reduced, and the drying effect is improved.

The invention discloses an urban garbage treatment station site selection method and device, electronic equipment and a storage medium, and relates to the technical field of site selection. The method comprises the following steps: dividing a target city area into a plurality of grid areas; acquiring signaling data of each grid region, and estimating population distribution characteristic data; acquiring historical garbage clearance data and commercial interest point data, and processing to obtain garbage prediction data; obtaining road data, establishing a topological road network model, and performing traffic characteristic evaluation on the topological road network model to obtain traffic characteristic data; acquiring ecological data, and acquiring service coverage data of each garbage disposal station; based on the obtained data, obtaining a multi-dimensional evaluation result, and determining a plurality of preliminary site selection of the garbage disposal station; and determining a preset number of addresses from the plurality of preliminary addresses as a final address of the garbage disposal station of the target city. By implementing the technical scheme provided by the invention, the accuracy of site selection of the urban garbage treatment station can be improved.

The invention provides an urban waste incineration slag resource utilization device and method, and relates to the technical field of slag waste recycling. The urban waste incineration slag resource utilization device comprises an equipment frame and a crusher installed on the equipment frame, and further comprises a circulation sedimentation assembly, a water adding assembly and a resource recovery assembly which are installed on the equipment frame, and the crusher transfers crushed slag into the water adding assembly; the water adding assembly is used for adding water into the ash and enabling the water to flow into the circulation precipitation assembly, the water is discharged to the resource recycling assembly after operation precipitation, and the multiple sets of stirring assemblies are used for stirring slurry in the circulation precipitation assembly. According to the urban waste incineration slag resource utilization device and method, through the arrangement of the circulation sedimentation assembly and the relative fixed sedimentation tank, sedimentation can be obtained within the operation time, overturning dumping and high-pressure water flushing can be achieved, internal slurry is easier to clean, and blockage is avoided.

The invention discloses a system and a method for treating urban garbage based on a smoldering technology, and belongs to the technical field of urban garbage treatment. The urban garbage treatment system comprises a garbage pretreatment device; a gradient temperature control reaction bed is arranged in the center of the garbage incinerator, and gradient temperature control is achieved through air supply and water supply; the air supply device is used for conveying air to a reaction area in the garbage incinerator so as to control the proceeding degree of the smoldering reaction; a harmful flue gas incinerator; the water treatment device is arranged between the garbage incinerator and the harmful flue gas combustion furnace, after sewage generated by garbage smoldering is treated, one part of water returns into the garbage incinerator to be mixed with air to help control the temperature in the furnace, and the other part of water enters the harmful flue gas combustion furnace to be subjected to high-temperature treatment together with harmful flue gas so as to remove harmful components; the invention discloses a multi-stage gas purification device. By means of the device system, self-sustaining smoldering decomposition treatment of the municipal solid waste is achieved.

The invention relates to the technical field of urban garbage management, and discloses a garbage recycling resource benefit dynamic evaluation method for urban large housekeepers. The method comprises the following steps: receiving real-time sensor data of a plurality of garbage collection points, determining garbage type distribution and processing priorities by using a preset garbage classification model, and dynamically generating a resource allocation strategy which comprises recycling vehicle path planning and processing equipment scheduling instructions. And predicting a garbage increment trend through a preset spatial-temporal distribution model, adjusting resource allocation strategy parameters, updating a processing priority through an iterative optimization algorithm, and outputting a resource scheduling scheme. According to the method, the condition of a recycling point can be accurately mastered in real time, accurate garbage classification and efficient resource allocation are achieved, garbage increment can be predicted, emergencies can be dealt with, garbage recycling resource benefits are effectively improved, urban garbage management work is optimized, and urban sustainable development is promoted.

The invention discloses an efficient pollution-free treatment method for municipal waste incineration fly ash, and relates to the technical field of waste resource utilization and environmental protection. Comprising the following steps: S1, adding the garbage fly ash into a hydrochloric acid solution, carrying out wet grinding, and carrying out centrifugal separation to obtain heavy metal filtrate and heavy metal-removed fly ash; washing the heavy metal-removed fly ash with clear water to obtain a washing solution; mixing the washing liquid with the heavy metal filtrate to obtain a heavy metal solution; s2, adding a complexing agent into the heavy metal solution, stirring and mixing, standing overnight, performing centrifugal separation to obtain a heavy metal removal solution and a heavy metal complex, and adjusting the pH value of the heavy metal removal solution to be neutral to complete heavy metal removal treatment; s3, uniformly mixing the washed heavy metal-removed fly ash and a catalyst, performing low-temperature pyrolysis treatment, sieving and separating to obtain dioxin-removed fly ash, and completing dioxin removal treatment; and S4, the heavy metal removal solution and the heavy metal complex are treated, and garbage fly ash treatment is completed.

The invention relates to a dynamic adjustment method and system for urban garbage points. The method comprises the steps of obtaining state data of each junk point based on a current junk point distribution condition, and performing feature analysis on the state data of each junk point to obtain state data features; classifying the state data features of each junk point according to different time levels to obtain state data feature sets corresponding to the different time levels, and performing trend analysis on the state data feature sets to obtain a short-term fluctuation trend and a long-term change trend corresponding to each junk point; combining the short-term fluctuation trend and the long-term change trend corresponding to each garbage point to obtain a throwing prediction result of each garbage point in a future time period; and according to the throwing prediction result of each garbage point, the positions, the number and the clearance frequency of the garbage points in the current garbage point distribution condition are adjusted to obtain an adjusted garbage point distribution condition. By adopting the method, the garbage points can be efficiently and dynamically adjusted.

The invention belongs to the technical field of mortar materials, and particularly discloses an environment-friendly light jet mortar material produced from municipal waste incineration bottom ash, which comprises the municipal waste incineration bottom ash, a cementing material, a water reducing agent, an accelerator and water, the cementing material comprises cement, silica fume and fly ash, the addition amount of the municipal waste incineration bottom ash accounts for 40-50% of the total mass, and the addition amount of the water reducing agent accounts for 10-20% of the total mass. The addition amount of the coal ash accounts for 0-18% of the total mass, the addition amount of the silica fume accounts for 0-12% of the total mass, the addition amount of the accelerator accounts for 6-9% of the total mass, and the use amount of the water reducing agent accounts for 1.5 wt% of the use amount of the cementing material. According to the environment-friendly light jet mortar material produced by adopting the municipal waste incineration bottom ash, in order to reduce the influence of the municipal waste incineration bottom ash on the environment and find a substitute of natural sand, the potential application of the municipal waste incineration bottom ash as a fine aggregate is discussed; meanwhile, the influence of the auxiliary cementing material on improvement of the performance of the jet mortar prepared from the municipal waste incineration bottom ash is investigated.

The invention relates to the technical field of vehicle scheduling management, and discloses a garbage clearance vehicle scheduling method and system for a garbage treatment plant, and the system comprises an urban garbage clearance evaluation module, an urban garbage clearance vehicle matching module, and an urban garbage clearance vehicle scheduling module. Based on an intelligent search algorithm and numerical analysis science, the overall density, the overall volume information and the overall quality information of garbage clearance at the urban garbage station are measured and calculated, and garbage clearance trucks are scientifically and intelligently dispatched based on real-time spatial feature information of garbage at the urban garbage station. Based on garbage collection volume and mass information of the urban garbage station, an artificial intelligence algorithm and set different garbage collection characteristics are combined with the specification and model information of the urban garbage collection vehicle, and the specification and model of the optimal garbage collection vehicle required by the urban garbage station are accurately selected. The intelligent matching of the garbage truck based on the real garbage characteristics of the urban garbage station is realized, and the scientificity and accuracy of the scheduling of the garbage truck are improved.

The utility model discloses a kind of urban garbage collection structures of cleaning and transport, it includes frame, the outer surface of the frame is provided with sorting component, the sorting component includes multiple thread rollers, the rotation of multiple thread rollers pushes garbage along specified path, this urban garbage collection structure of cleaning and transport, by setting washing component, clean water is transported, the end synchronous pulley of a thread roller is rotated by synchronous belt drive a rotating rod, the end synchronous pulley of a rotating rod is rotated by synchronous belt drive another rotating rod, multiple rotating rods can be made synchronous rotation, each rotating rod is rotated by bevel gear set drive adjacent shower head, the outer surface synchronous pulley of a shower head is rotated by synchronous belt drive another shower head, multiple shower heads can be made synchronous rotation, start water pump, clean water is pumped from water storage tank, transported to conveying frame, to be transported to shower head, the application has the effect of cleaning garbage before sorting robot sorting.

Sieve star for a sieving device for sieving a material such as municipal waste, wood chips or soil-covered crops, comprising the sieve star: 1.1 a hub (4) that defines an axis of rotation (R) of the sieve star (3), 1.2 Several elastically compliant fingers (5) made of plastic or rubber are distributed around the axis of rotation (R), projecting from a foot area (6) near the hub (4) to a free peripheral end (7), with at least one of the fingers (5) serving as a cleaning finger (5), and 1.3 a cleaning element (10; 20; 30; 40; 50) detachably attached to the cleaning finger (5) made of a material that is harder than the plastic or rubber of the fingers (5), wherein 1.4 the cleaning element (10; 20; 30; 40; 50) can be optionally attached to the cleaning finger (5) in a first and a second orientation, 1.5 the cleaning element (10; 20; 30; 40; 50) has a first cleaning geometry (11; 21; 31; 41; 51) and a second cleaning geometry (12; 22; 32; 42; 52), 1.6 In the first orientation, the first cleaning geometry (11; 21; 31; 41; 51) and in the second orientation, the second cleaning geometry (12; 22; 32; 42; 52) take an active position, while the other cleaning geometry takes a passive position. 1.7 the cleaning geometry (11, 12; 21, 22; 31, 32; 41, 42; 51, 52) in the active position points in the direction of rotation (D) of the sieve star (3) and / or radially outwards, and 1.8 the cleaning geometry of the hub (4) in the passive position is radially closer than the cleaning geometry (11, 12; 21, 22; 31, 32; 41, 42; 51, 52) in the active position and / or points against the direction of rotation (D) of the sieve star (3).

The application belongs to the technical field of solid waste treatment, and discloses a fly ash harmless treatment process, which comprises the following steps: pretreating fly ash, mixing fly ash slurry and a citric acid solution, adding CaO for sufficient grinding, feeding the ground material into a drying equipment for drying and dewatering, adding Ca(OH)2 for sufficient grinding, and adding a solidifying agent to obtain stable harmless fly ash solidifying products. The application utilizes anhydrous citric acid to degrade dioxins and Cl in municipal waste incineration fly ash under specific mechanical equipment. Under the action of mechanical energy, the dioxins and Cl flow at high speed in an irregular manner, collide with each other, form mechanical disturbance effects and chemical effects, and achieve the effect of degrading and removing harmful and toxic substances in fly ash. The application utilizes mechanical equipment to perform harmless treatment on fly ash, and has the advantages of high efficiency, short reaction time, no sewage, no smoke, no dust, no waste gas discharge, and no carbon emission.

The invention relates to the technical field of environment-friendly treatment, and particularly discloses an intelligent solid waste environment-friendly treatment system and method.According to the intelligent solid waste environment-friendly treatment system and method, municipal waste is subjected to landfill, leachate generated in the biodegradation process of the municipal waste is collected, and meanwhile key state parameters such as the pH value of the leachate and landfill gas components in the degradation process are monitored in real time; a deep learning algorithm is introduced to carry out sequential evolution mode analysis on multi-dimensional key state parameters in the degradation process, meanwhile, the current biodegradation reaction stage is self-adaptively recognized in combination with the current reacted time, and then an adaptive recharge leachate target pH value is determined based on the recognition result of the reaction stage. And adjusting the pH value of the collected leachate according to the pH value of the collected leachate, and recharging the adjusted leachate into the landfill area to dynamically adjust the pH value environment of the leachate. According to the method, the optimal biochemical environment can be provided for microbial flora in different stages through intelligent sensing and staged regulation and control of the garbage degradation process, so that the garbage degradation efficiency and the gas production rate are improved.

The present invention relates to a technology for the production of porcelain stoneware products, wherein the treatment process allows to re-use recovery materials coming from the treatment of urban waste.In particular, the present invention relates to the production of products for the construction of driveways.

The utility model discloses an efficient and durable municipal waste incineration conveying chain, which relates to the technical field of conveying chains, and comprises outer chain sheets, middle chain sheets, pin shafts, stainless steel wear-resistant sleeves, mounting plates and assembling screw grooves, the outer walls of the middle chain sheets are provided with splicing screw grooves, the outer walls of the mounting plates are provided with splicing screw rods, and the splicing screw rods are connected with the pin shafts. A matching groove is formed in the outer wall of the outer chain piece, an assembling screw groove is formed in the outer wall of the stainless steel wear-resisting sleeve, an operation groove is formed in the outer wall of the middle chain piece, a threaded plate is installed on the inner wall of the operation groove, and an assembling screw is installed on the inner wall of the threaded plate. By installing the performance mechanism, firstly, the stainless steel wear-resisting sleeve is moved into the connecting hole, one end of the assembling screw rod is moved into the assembling screw groove, then one end of the stainless steel wear-resisting sleeve is fixed, and then the other end of the stainless steel wear-resisting sleeve is fixed into the splicing screw groove through the splicing screw rod, so that the high temperature resistance of the chain is improved through the stainless steel wear-resisting sleeve, and the service life of the chain is prolonged. And thermal creep is reduced, and the service life is prolonged.

The invention provides a mortar coagulant with regenerated barium slag as a main raw material. The mortar coagulant comprises 50-60% of regenerated barium slag, 30-45% of natural clay, 5-15% of silica fume ash, 3-6% of latex powder, 0.5-1% of sodium carbonate, 0.2-0.5% of an alunite expanding agent and 0.1-0.5% of a polycarboxylate superplasticizer. The invention also provides an application of the mortar coagulant in concrete. The regenerated barium slag is used as a main raw material, and is combined with the natural clay, the silica fume, the latex powder, the sodium carbonate, the alunite expanding agent and the polycarboxylate superplasticizer to prepare the mortar coagulant, so that the additional value of the regenerated barium slag product is improved, and the resource utilization of the barium slag is realized. The mortar coagulant and the natural sand are mixed to manufacture the formed concrete, and the formed concrete can be applied to road brick manufacturing, crack grouting filling or mine hole backfilling, so that the problem of shortage of natural aggregate resources is solved, the ecological environment of barite production areas is protected, and the problems of stacking of urban wastes, land occupation, environmental pollution and the like are solved.

The embodiment of the present specification provides a smart city garbage treatment equipment management method and an Internet of Things system. The method is executed based on a management platform of a smart city garbage treatment equipment management Internet of Things system. The method comprises the following steps: acquiring a garbage accumulation condition in a target area; determining at least one sub-area in the target area as at least one garbage point to be treated based on the garbage accumulation condition; and determining a garbage truck scheduling scheme of the target area based on the at least one garbage point to be treated. The garbage truck scheduling scheme comprises the type of at least one garbage truck to be scheduled and the departure time of the at least one garbage truck.

The invention discloses an intelligent environmental sanitation monitoring method based on a smart city, belongs to the technical field of urban sanitation management, and aims to solve the technical problem of how to plan urban sanitation workers and vehicles, supervise and manage urban environmental sanitation work, ensure orderly proceeding of the urban environmental sanitation work and improve the working efficiency. The technical scheme adopted by the invention is as follows: data acquisition: acquiring various data of road sections of urban terrain roads, serial numbers and real-time position data of sanitation vehicles, identity information data of sanitation workers, information of various garbage stations in cities, positions of urban garbage classification and garbage treatment stations, garbage storage amount and treatment amount data; the collected data are summarized and stored in the urban environmental sanitation monitoring device; range division: dividing the urban road into an urban road sweeper operation network diagram, an urban auxiliary road cleaning area diagram and an urban garbage transport vehicle operation network diagram; urban garbage is cleaned; and real-time monitoring management is realized.

The invention relates to a process for recovering one or more metals selected from technetium, ruthenium, palladium, and rhenium from an aqueous solution. The process comprises precipitating the metal(s) in the solution by adding a reagent to the solution, then collecting the precipitate thus formed. The process is characterized in that the reagent comprises—or is composed of—a mixture of 1,10-phenanthroline and a nickel(II) salt selected from nickel(II) nitrate and nickel(II) sulfate. Applications include: recovering all or part of the technetium, ruthenium, and / or palladium present in aqueous solutions of fission products prior to vitrification of the fission products; and recovering all or part of the ruthenium, palladium, and / or rhenium present in solutions obtained from the nitric acid treatment of industrial and / or municipal waste.

This invention discloses a method and system for intelligent scheduling of garbage trucks based on reinforcement learning, specifically relating to the field of intelligent scheduling technology. The method involves acquiring urban garbage collection road network topology, historical garbage production spatiotemporal distribution data, and garbage truck trajectory data; calculating the negative coupling coefficient of each intersection segment to the scheduling strategy of adjacent routes to form a negative coupling matrix; performing spectral clustering on the negative coupling matrix to divide the coupling-sensitive subgraph and extracting a set of key intersection segments; inputting the set of key intersection segments and historical garbage production spatiotemporal distribution data into a multi-agent reinforcement learning framework to construct a scheduling strategy model and output initial strategy parameters; generating a collaborative scheduling scheme based on the initial strategy parameters in a simulation environment and incrementally correcting the initial strategy parameters to obtain a converged scheduling strategy; determining the garbage truck departure time and travel path based on the converged scheduling strategy and writing it back to the route interaction graph for iterative optimization.