358 results about "Circular economy" patented technology

The invention discloses a BOE waste liquid treatment method and device. The method comprises the following steps: replacing hydrogen fluoride in BOE waste liquid with sulfuric acid, evaporating, fractionating and recovering hydrofluoric acid, neutralizing evaporated residual liquid with ammonia to obtain a fluorine-containing ammonium sulfate solution, defluorinating with fluorgypsum slurry to obtain a low-fluorine ammonium sulfate solution, and concentrating and crystallizing to obtain an ammonium sulfate product. The BOE waste liquid is treated by adopting the scheme, the bottleneck of the market capacity of ammonium bifluoride is avoided, the hydrofluoric acid product and the ammonium sulfate product with huge market capacity are produced, the value orientation of turning waste into wealth, circular economy and environmental protection is really realized, and the method is suitable for industrial popularization and application.

The invention relates to the technical field of household garbage treatment, in particular to a rural household garbage classification and resourceful treatment circulation system, which comprises straw, harmful garbage, recyclable garbage, kitchen garbage, large household garbage and sludge; the rural household garbage treatment system comprises a household garbage classification system, a household garbage pyrolysis treatment system, a household garbage recycling treatment system, a harmful garbage recycling treatment system, a kitchen garbage recycling treatment system, a large household garbage classification recycling treatment system and a sludge recycling treatment system. By means of a centralized treatment mode of the rural domestic garbage, the problem that landfill of the rural domestic garbage is difficult is solved, corresponding economic value is brought to the rural area, the idea of waste utilization, circular economy, energy conservation and emission reduction is achieved, the rural environment is better, and the economic benefit of the rural area is improved. And a solid foundation is laid for creating a high-quality living environment in rural areas.

The invention discloses a preparation method of a konjac glucomannan-based hydrophobic biomass film. The method comprises the following steps: S1, purification: eluting konjac powder, drying, grinding and screening to obtain konjac glucomannan; s2, modification: fully stirring and mixing the purified konjac glucomannan with an ethanol solution to prepare a homogeneous solution, adding a sodium hydroxide solution, and carrying out a deacetylation reaction to obtain deacetylated konjac glucomannan; s3, preparing a film: blending the deacetylated konjac glucomannan with agar, pullulan and glycerol in a solvent, heating and stirring to form a film solution, defoaming and drying to obtain a konjac glucomannan-based hydrophobic biomass film formed by the deacetylated konjac glucomannan, the agar and the pullulan; the konjac glucomannan-based hydrophobic biomass film prepared by the method has good hydrophobic performance, mechanical performance and the like, is beneficial to reducing the dependence on fossil energy, promotes the development of circular economy, and makes a contribution to environmental protection and sustainable development.

The present disclosure provides for an automated wire harness diagnosis system and process for measuring the electrical characteristics of a wire harness in order to provide an estimate of the useful lifespan of the wire harness. Embodiments described herein may be deployed in a remanufacturing environment or in a manufacturing environment to provide statistically based estimates of the remaining useable lifetime of the wire harness, thus allowing to reduce costs and waste when producing wire harnesses within a circular economy environment.

The invention discloses a method for recycling EVA and silver of a waste photovoltaic panel laminated piece, which comprises the following steps: S1, removing an aluminum frame and a junction box, and stripping a back plate; s2, EVA on the back of the laminated part is removed; s3, EVA on the front face of the laminated piece is removed; and S4, recovering the silver electrode of the silicon battery piece. The invention provides the method for accurately controlling the EVA (Ethylene Vinyl Acetate) at the front part and the back part of the photovoltaic laminated piece to be cleanly and quickly separated and separating the silver electrode on the silicon battery piece by using laser as a main process, chemical reagents are not needed in the whole process, crushing and sorting are not needed, and the silver with high additional value and the complete silicon battery piece are obtained; the method has the characteristic of efficient and accurate utilization of energy. According to the method, the non-destructive rapid recovery of EVA is realized, and meanwhile, a silver recovery method with low environmental influence is adopted, so that great convenience is provided for subsequent efficient remanufacturing, and considerable circular economic benefits can be brought.

The invention discloses a method for producing edible fungi, insect protein and bio-organic fertilizer by utilizing navel orange industry wastes, which comprises the following steps: step 1, crushing collected navel orange residues and navel orange trees into fragments, with the solid content of the navel orange residues being 24% and the solid content of the navel orange trees being 36%; 2, the solid waste obtained in the step 1 is mixed with 10% wheat bran, wherein the ratio of the navel orange residues to the navel orange trees to the wheat bran is 3: 6: 1; 3, the organic mixed base material obtained in the step 2 is disinfected and then used for edible mushroom planting; and 4, breeding hermetia illucens by using the waste base material obtained in the step 3 to obtain the insect protein and the bio-organic fertilizer. And a circular economy concept is realized, and the utilization of resources is maximized.

The invention discloses an all-solid waste cementing material and a preparation method thereof, and belongs to the technical field of building materials. The all-solid waste cementing material comprises the following components in parts by mass: 30-45 parts of steel slag, 20-30 parts of mineral slag, 10-20 parts of red mud, 20-25 parts of carbide slag, 10-20 parts of fly ash, 5-10 parts of an interface regulator and 5-20 parts of gypsum. According to the invention, various industrial solid wastes such as the steel slag, the red mud, the carbide slag, the fly ash, the mineral slag and the gypsum are fully utilized as raw materials, so that cyclic utilization of resources is realized, the solid wastes can generate hydration products, form a firm network structure and provide strength, harmless treatment and resource utilization of the solid wastes are realized, and the cement can be used as a substitute material of cement. The method has good economic and environmental benefits, achieves the purpose of carbon reduction in the field of cementing materials, and meets the current industrial development requirements of energy conservation, environmental protection and circular economy.

The invention provides a replacement vacuum pressure swing adsorption ethylene recovery system and method based on molecular sieves, the system comprises a plurality of adsorption towers which are connected, the adsorption towers are filled with molecular sieve adsorbents, the bottoms of the adsorption towers are connected with a feeding pipeline, an ethylene discharging pipeline and a replacement pipeline, the feeding pipeline is connected with feed gas, and the ethylene discharging pipeline is connected with the replacement pipeline. The ethylene discharge pipeline and the replacement pipeline are both connected with the ethylene product buffer tank, and the top of the adsorption tower is connected with a residual gas discharge pipeline; ethylene can be efficiently recovered by adopting the molecular sieve adsorbent, high-purity ethylene can be obtained by combining with reasonable step sequence setting, and a high ethylene recovery rate is kept; ethylene is recycled through replacement vacuum pressure swing adsorption, and the method is low in energy consumption, simple in technological process, convenient to operate and maintain and low in investment cost; the purity of ethylene is guaranteed through the replacement step, meanwhile, vacuum is added, ethylene can be recycled to a greater extent, it is guaranteed that precious resources are not wasted, meanwhile, the circular economy concept is met, and cyclic utilization of the resources is achieved.

The invention relates to the technical field of preparation of porous carbon materials, in particular to a carbon material with an ultrahigh specific surface area and a preparation method and application thereof, and the preparation method comprises the following steps: ball-milling and mixing a carbon precursor and a chemical activator to obtain a homogeneous mixture; synchronously carbonizing and activating the homogeneous mixture to obtain a carbonized compound; washing and drying the carbonized compound to obtain a carbon material with an ultrahigh specific surface area; the carbon precursor is waste phenolic resin. The waste phenolic resin is efficiently converted into the high-specific-surface-area porous carbon material (super activated carbon) through ball-milling-assisted homogenization and a synchronous carbonization / activation process, and the method has remarkable advantages in the aspects of environmental protection, process efficiency, material performance, application value and the like, not only solves the problem of thermosetting resin recovery, but also improves the recovery efficiency of the thermosetting resin. And the waste resin is converted into a high-added-value carbon material, so that the development of circular economy is promoted, and the dual-carbon strategic target is met.

The invention relates to a strengthening treatment and automatic separation system for construction waste recycled aggregate, and innovatively provides a technical route of'multistage crushing, magnetic separation, winnowing, flotation linkage and aggregate strengthening 'aiming at the core problems of more impurities and low strength of the recycled aggregate. The system comprises a pretreatment module (for removing large impurities), a multi-stage crushing module (for controlling grain shapes), a linkage sorting module (for removing plastics through winnowing, removing wood chips through flotation and carrying out photoelectric precise sorting), an aggregate strengthening module (for improving strength through microwave activation and nanometer coating) and an intelligent control center. By establishing a magnetic separation efficiency model, a grain shape optimization model and a strength prediction algorithm, the aggregate purity is greater than 98% (XRF detection), and the compressive strength is improved by 40% (ISO 679 verification); the energy consumption in the sorting link is reduced by 30%, and the reinforced aggregate can replace natural aggregate to prepare C40 concrete. The bottleneck of high-value utilization of the construction waste is broken through, and circular economy development is promoted.

The invention relates to a multi-source solid waste-based low-carbon geopolymer cementing material as well as a preparation method and application thereof, and belongs to the technical field of geopolymer materials. The multi-source solid waste-based low-carbon geopolymer cementing material is prepared from the following components in parts by weight: 80 to 95 parts of curing base material, 5 to 20 parts of excitation component, 2 to 5 parts of regulation component and 0.5 to 2 parts of nano reinforcing agent. The invention also provides a preparation method and application of the multi-source solid waste-based low-carbon geopolymer cementing material. The multi-source solid waste-based low-carbon geopolymer cementing material prepared by the invention has the advantages of high-value utilization of solid waste resources, excellent mechanical and durability, low-carbon and efficient process and wide application scene, and provides an innovative solution for green building materials and circular economy.

The invention provides a lithium bis (fluorosulfonyl) imide heavy slag treatment method which comprises the following steps: reacting bis (fluorosulfonyl) imide heavy slag to be treated with an aqueous solution of an alkaline compound to obtain a reaction solution containing a salt compound and ammonia gas; and recovering the reaction liquid to obtain the salt compound. By means of the method, resource recycling can be conducted on the lithium bis (fluorosulfonyl) imide heavy slag, economic benefits are improved, and the method has important significance in promoting sustainable development and circular economy.

The invention relates to the technical field of supply and demand management, in particular to a circular economy-oriented material supply and demand dynamic matching and demand prediction platform, which comprises a source data cross fusion module, a feature mapping module, a circular deduction module, a resource benefit prediction module, an efficiency dynamic arrangement module and an executable order generation module, performing source data cross fusion on the original material supply list and the demand list to obtain fused data; performing feature mapping on the fused data to obtain supply and demand feature vectors; performing full-life-cycle cyclic deduction on the supply and demand feature vectors to obtain a potential cyclic path map; performing resource benefit prediction on the potential circulation path map to obtain a benefit influence index; performing global efficiency dynamic arrangement on the potential supply-demand relationship to obtain an optimized matching sequence; performing priority ranking on the optimized matching sequence to obtain an instant executable order; according to the invention, the efficiency of reference information generation of the circular economy-oriented material supply and demand dynamic matching and demand prediction platform can be improved.

The invention relates to a high-temperature acidolysis reaction defluorination method, and belongs to the technical field of phosphorus chemical resource recycling. The technical problem to be solved by the invention is to provide a high-temperature acidolysis reaction defluorination method which is simple to operate and high in defluorination rate. According to the method, phosphorite powder / white fertilizer is subjected to high-temperature acidolysis, fluoride in the phosphorite powder / white fertilizer reacts with strong acid, fluorine is separated from a reaction system in a gas form, and hydrofluoric acid is obtained through condensation. The method is simple, is simple and convenient to operate, and is easy to realize technologized large-scale production. Meanwhile, due to the destructive effect of the strong acid on the lattice structure of the phosphorus-calcium compound, citrate-soluble phosphorus can be converted into soluble phosphate, subsequent phosphorus recovery is facilitated, comprehensive utilization of phosphorite and elimination of white fertilizer output are achieved, meanwhile, the problems of material accumulation and resource waste of enterprises are solved, and the method conforms to the circular economy concept of green development.

The invention discloses a preparation method of a slag-steel slag-circulating fluidized bed fly ash based composite cementing material. The preparation method comprises the following steps: grinding and stripping desulfurization wastes of a power plant, then mixing with slag powder, steel slag powder, circulating fluidized bed fly ash and water to obtain gel material slurry, and carrying out standard curing on the obtained gel material slurry to obtain the slag-steel slag-circulating fluidized bed fly ash-based composite gel material. The composite cementing material has relatively high compressive strength and good volume stability. By applying the technology, a large amount of solid waste can be consumed, the recycling target of adjusting measures to local conditions and treating waste with waste is achieved, and meanwhile the method has the value of circular economy and energy conservation and environmental protection.

The invention belongs to the technical field of refractory materials, and particularly relates to a mullite refractory material with high mechanical property and a preparation method thereof. The mullite refractory material is prepared by taking coal gangue, bauxite and fly ash as raw materials, and the three industrial solid wastes are converted into the refractory material with high additional value, so that the concept of circular economy is met. According to the invention, coal gangue, bauxite and fly ash are used as raw materials, CaF2, V2O5 and lanthanide rare earth oxide are used as sintering aids, the problems of insufficient mechanical properties and overhigh sintering temperature of the mullite refractory material prepared by purely using coal gangue, bauxite and fly ash as raw materials are solved, and the performance of the mullite refractory material can be greatly improved. CaF2 and V2O5 promote substance transport and grain growth, and rare earth oxide inhibits excessive growth of grains. The balance of'promotion 'and'inhibition' is favorable for forming a compact, fine, uniform and interlaced mullite crystal network, and meanwhile, the mullite crystal network has high strength and good toughness.

The invention discloses a livestock and poultry breeding wastewater treatment device based on a dynamic bacterial-algae biological membrane and a method and application thereof, and relates to the field of livestock and poultry breeding tail water treatment. According to the biological treatment membrane bed unit, biological treatment and evaporation processes are creatively combined, and the system stability and the wastewater purification efficiency are remarkably improved. The unit is high in environmental adaptability and free of emission and peculiar smell during operation, the wastewater volume is effectively reduced, and the limitation of resource utilization of aquaculture wastewater is broken through. The biological membrane contains a plurality of microorganisms, including high-efficiency microorganisms added at the early stage and microorganisms captured from the environment, so that the operation and maintenance cost of equipment is reduced. Microalgae cells grow in the form of a biological membrane and are easy and convenient to harvest, and automatic continuous production is realized. According to the technology, organic waste in the breeding wastewater is recycled, the product is widely applied to multiple fields, the biological carbon sequestration function is achieved, and the carbon trapping device is low in cost, high in output value, green and environmentally friendly and assists in constructing a sustainable technical system and a circular economy mode.

The invention provides a fly ash-based high-temperature solid composite heat storage material and a preparation method thereof. The heat storage material is prepared from fly ash, magnesium oxide, an adhesive, a sintering aid, a heat conduction enhancer and water. Wherein the sum of the mass percentages of the fly ash and the magnesium oxide is 100%, the proportion of the fly ash is 30%-75%, and the proportion of the heat storage material magnesium oxide is 25%-70%; the mass percentage of the binder kaolin is 5%-15%, the mass percentage of the sintering aid sodium silicate is 5%, the mass percentage of the heat conduction enhancer copper oxide is 2%-6%, and the mass percentage of the water is 20%-30%. According to the fly ash-based high-temperature solid composite heat storage material disclosed by the invention, good thermodynamic properties are maintained while the preparation cost of the material is remarkably reduced, and the resource utilization rate of industrial solid wastes is increased while the comprehensive benefits of circular economy are increased.

The invention relates to the technical field of home decoration, and discloses a non-magnetic mobile base adhesive culture honor wall poster and a preparation method thereof, and the wall poster sequentially comprises a dynamic adsorption layer, a photocatalysis layer, a degradable base material layer and a water-soluble interface agent layer from top to bottom. The preparation method comprises the steps of raw material preparation, compounding of each layer and the like. According to the wall poster, the bio-based material (bamboo fiber / PLA / PBAT) is used as the base material layer to replace traditional petroleum-based PET, the release amount of VOCs is greatly reduced, the photocatalytic layer can decompose pollutants such as formaldehyde, the indoor air quality can be improved, the cycle index is increased to 300 or above through the gradient microsphere structure, and the replacement frequency is reduced. Compared with traditional coating and thermocuring, the electrostatic spraying and UV curing process is more energy-saving and emission-reducing, gradient arrangement of the microspheres is achieved through segmented electrostatic spraying, and the adsorption stability is improved. And by embedding the NFC chip, the product traceability is realized, the circular economy is supported, and the recycling rate is improved.

The invention discloses a method for preparing foamed ceramic through low-temperature sintering and a product prepared through the method, and the foamed ceramic with pyroxene minerals as a main crystal phase is prepared through low-temperature sintering through silicon carbide-desulfurization slag composite foaming, szaibelyite fluxing and crystal phase regulation and control. Therefore, the composite closed pore system foaming ceramic material with high mechanical property and closed pore property is obtained. Low-cost minerals and solid wastes are adopted as main raw materials, so that the production cost of the foamed ceramic is effectively reduced, and a solid foundation is laid for large-scale industrial application of the foamed ceramic; meanwhile, efficient resource utilization of solid waste is achieved, remarkable economic and environmental benefits are achieved, and the method plays an important role in promoting industrial circular economy development and ecological environment treatment.

The invention relates to the technical field of building materials, and discloses an ardealite-based cementing material and a preparation method thereof, and the ardealite-based cementing material comprises the following component materials: 70-90% of ardealite; 1%-15% of waste slag; 3%-10% of fly ash; 1%-10% of a nano modifier; the ardealite is pretreated, so that the moisture content of the ardealite is less than or equal to 5%, the particle size distribution of the ardealite is adjusted to be 3-5 [mu] m in a D90 range, and the nano modifier comprises but is not limited to a silane coupling agent, graphene oxide nano particles and a composition of the silane coupling agent and the graphene oxide nano particles. The ardealite, the waste slag, the fly ash and other industrial wastes are used as main raw materials, so that efficient resource utilization of solid wastes is realized, the problems of environmental pollution and land occupation caused by solid waste stockpiling are reduced, the requirements of circular economy and sustainable development are responded, and meanwhile, the preparation process of the material is low in energy consumption, less in pollution and suitable for industrial production. And a low-carbon and environment-friendly solution is provided for the building industry.

The invention discloses a waste tire sorting and conveying system and a cracking produced gas recovery process thereof, the system comprises a tire classification module, a tire surface defect judgment unit, a repair priority processing module and a tire priority conveying module, and the tire classification module divides size according to tire diameter data and classifies materials in combination with cord thread magnetic attraction characteristics; the tire surface defect judgment unit analyzes and judges tire surface defect data by referring to the tire repair index database; the repair priority processing module constructs a multi-dimensional evaluation matrix to obtain a tire repair priority; and the tire priority conveying module scores, judges and distributes conveying queues according to the repair priority, so that the conversion from extensive recovery to refined classification and high-valued utilization of the waste tires is realized, the problems of low efficiency and high wrong classification rate of traditional manual sorting are solved, key support is provided for large-scale and intelligent operation of a waste tire circular economy industrial chain, and the economic benefit of the waste tires is improved. And the raw material quality and the treatment efficiency of a subsequent recycling process are ensured.

The invention relates to a coal gangue-based temperature control and humidity control material for 3D printing and a preparation method thereof, two wastes of coal gangue and camellia oleifera shells are taken as main raw materials, the purpose of treating wastes with wastes is realized, the concept of circular economy is met, and the cost is low. Rapid hardening is achieved through calcium formate, rheology controllability is achieved through a rheology modifier, and the core problems of the 3D printing material in the aspects of printability and early strength are successfully solved. The functions of temperature control (phase change microcapsules) and humidity regulation (air entraining-fiber porous system) are integrated in a printing material, so that a printed building component becomes an intelligent environment regulator. Due to the addition of the camellia oleifera shell fibers, humidifying is assisted, the reinforcing and toughening effects are achieved, and the integrity and long-term durability of a printed component are improved.

The invention discloses an environment-friendly hazardous waste treatment and intelligent collection system, which comprises a resource utilization module, which is used for accurately classifying hazardous wastes through a classification and identification technology, screening out wastes with utilization values, and comprehensively utilizing the wastes through a physical, chemical or biological method to realize maximum recovery of resources; the harmful substance curing module is used for effectively curing harmful substances in the hazardous wastes by adopting an efficient curing technology so as to ensure that secondary pollution to the environment cannot be caused in the subsequent treatment process; the method has the beneficial effects that recycling, reduction and innocent treatment of hazardous wastes are realized, and the development of circular economy is promoted; the intelligent level of hazardous waste treatment is improved, the collection, transportation and management process is optimized, and the cost is reduced; environment monitoring and data connection are enhanced, and the safety and compliance of the processing process are ensured; comprehensive cost control and decision support are provided, and economic benefits and social benefits of enterprises are improved.

A system, apparatus, and method is provided for recommending actions to enable circular economy framework across lifecycle of product including components in industrial environment. The method including determining, by processing unit, features for a given phase of lifecycle of product based on information associated with unique identifier of product. The information is stored in knowledge graph including semantic information pertaining to product, components of product, properties of components of the product and behavior of components of the product at each lifecycle phase of product. The method includes determining performance indicators pertaining to circular economy framework in industrial environment based on features from knowledge graph for given phase of lifecycle of product. The method includes recommending actions for given lifecycle phase of product such that determined one or more performance indicators are within predefined range enabling circular economy framework in industrial environment.

The invention discloses a mine full-service chain flow collaborative management and control system and method, and relates to the field of intelligent mine comprehensive management and control. Based on a platform architecture of a unified network, a database and a geographic information graph, a coal chain flow, an electric chain flow, a wind chain flow, a water chain flow, an object chain flow and a green circular economy chain flow are constructed according to a digraph sequence, a cooperative relationship among the chain flows is established, a full-service chain flow cooperative management and control system is formed, the system automatically decomposes mine safety production tasks, and the safety production efficiency is improved. The method comprises the following steps: generating a process work order of which each chain flow can be automatically executed and fed back, issuing the work order to each single chain flow after re-checking and optimizing, performing adaptive cooperative control execution and dynamic adjustment by the work order, forming closed-loop control of mine full-service chain flow, and realizing structuralization and systematization of mine safety production tasks of a complex and huge system. According to the invention, the information sharing, data and event driving and intelligent management and control levels of a complex and huge mine system are improved, and intelligentization of a single system to intelligent systematization and green low carbon of a full-service process are realized.

The invention belongs to the field of microbial agents, and particularly relates to a compost heat production method of a ganoderma lucidum basswood planting waste substrate, which comprises the following steps: mixing the ganoderma lucidum basswood planting waste substrate with chicken manure to obtain a fermentation raw material; paving the fermentation raw materials in a fermentation container layer by layer; a complex microbial inoculant is uniformly sprayed on the surface of each layer of fermentation raw material; the complex microbial inoculant is prepared from the following strains in percentage by weight: 10 to 25 percent of bacillus cereus, 5 to 10 percent of bacillus smith, 5 to 10 percent of geobacillus thermodenitrificans, 20 to 40 percent of bacillus licheniformis, 5 to 24 percent of ureibacillus thermophilus and the balance of actinomyces thermophilus; the oxygen content is controlled to be 5-15%; the 50-60 DEG C high-temperature period is maintained for 180-210 days, the heat exchange pipe located between the two layers of fermentation raw materials is connected to a heating system in the high-temperature period, and the system is suitable for agricultural circular economy and distributed energy supply scenes.

The invention provides a method for producing green methanol by combining biogas with green hydrogen and application thereof. The method comprises the following steps: pretreating biogas; carrying out reforming reaction on the pretreated biogas and water vapor to prepare synthesis gas; and dehydrating, decarbonizing and pressurizing the synthesis gas, and inputting into a methanol synthesis reactor to prepare methanol. According to the method, the methane conversion path is optimized, the green characteristic of green hydrogen is combined, and the carbon hydrogen ratio in the reaction process is adjusted, so that the methanol production efficiency can be improved, the emission of carbon dioxide and methane can be reduced, and the energy conversion efficiency and the comprehensive utilization capacity of renewable energy sources are further improved. According to the process, the biogas utilization mode can be optimized, and technical support is provided for construction of low-carbon circular economy.

The invention relates to the technical field of adsorbent materials, in particular to a transition metal sulfide adsorbent and a preparation method and application thereof.According to the transition metal sulfide adsorbent, Mo-MOF serves as a template, thiourea and Mo-MOF are calcined according to the mass ratio of 3-4: 1, and the transition metal sulfide adsorbent is prepared through a high-temperature template cracking method; an active center with adsorption and reduction functions is created on an adsorption material reaction interface by utilizing an MOF template high-temperature cracking method, and the prepared MOF template derived transition metal sulfide adsorption material can realize efficient selective removal and resource recycling of Ag < + > in a water body; the method has important significance for guaranteeing the safety of the water environment and maintaining the development of green and low-carbon circular economy of silver resources. And a prototype new technology integrating selective adsorption and heavy metal elementary substance is provided for a wastewater heavy metal low-carbonization technology.

The invention relates to the technical field of plastic forming, and discloses a plastic leftover material forming process of a layered compaction structure, which comprises the following steps: S1, raw material pretreatment: selecting a new plastic material meeting performance requirements, drying, mixing with pretreated recycled material particles in proportion, uniformly stirring, and feeding into a raw material storage tank for later use; s2, melting and injection molding: feeding the mixed raw materials into an injection molding machine, heating in different areas through a charging barrel, and stirring and melting into a melt through a screw rod; the die set is arranged, through an immediate leftover material separation and recovery system, the cut leftover materials can be rapidly recycled, soil and water pollution caused by leftover material accumulation is avoided, meanwhile, waste of plastic raw materials is reduced, and the development concepts of green manufacturing and circular economy are met. Due to the sealing protection design of the die set, pollution caused by melt leakage is avoided, and diffusion of dust and harmful gas is reduced through the sealing structure of the movable groove.