252 results about "Organic solid waste" patented technology

The invention belongs to the field of microbial electrochemistry and solid organic waste recycling, and discloses a microbial electrosynthesis enhanced solid wastewater hydrolysis and anaerobic digestion biogas high-value utilization system coupling microbial electrosynthesis, organic solid waste electrochemical-biological synergistic hydrolysis oxidation and anaerobic digestion. The system comprises a cathode chamber and an anode chamber which are separated by an ion exchange membrane, an electrochemical driving device and an anaerobic digestion unit communicated with the anode chamber. And the cathode chamber is provided with a cathode electrode and an anaerobic acetic acid production microbial system and is communicated with biogas generated by anaerobic digestion, so that carbon dioxide in the biogas is reduced at the cathode to generate acetic acid and methane-enriched gas is output. The anode chamber is provided with an anode electrode, organic solid waste and a hydrolytic microorganism system are added, electrochemical-biological synergistic hydrolytic oxidation of the organic solid waste and hydrolysates of the organic solid waste is used as an anode reaction, oxygen evolution is inhibited, and oxygen transmembrane migration is reduced; and the hydrolysate in the anode chamber flows into the anaerobic digestion unit to produce biogas, so that the integrated operation of solid wastewater hydrolysis and biogas upgrading is realized.

The invention relates to the technical field of organic solid waste resourceful treatment, in particular to a method for enhancing degradation of biodegradable plastic compost based on white-rot fungi and manganese modified charcoal. According to the method, manganese modified charcoal and white-rot fungi are subjected to synergistic treatment, and the efficient method for intensively degrading the biodegradable plastic through aerobic composting is constructed. The method effectively overcomes the technical bottlenecks of slow degradation starting, long degradation period and easy generation of micro-plastic residues of the biodegradable plastic in traditional compost, and realizes rapid and thorough degradation of the biodegradable plastic. Besides, the method also promotes the conversion of humus precursor substances in the compost material and accelerates and stabilizes the synthesis of humus, so that the decomposition degree of the compost product is remarkably improved, and the quality and environmental safety of the final compost product are synchronously improved while the biodegradable plastic is efficiently degraded. And an efficient and reliable solution is provided for recycling of organic solid wastes and degradation of biodegradable plastic compost.

The invention discloses a pretreatment method for increasing the yield of anaerobic fermentation methane of a lignocellulose material, and belongs to the technical field of high-efficiency anaerobic fermentation methane production of organic solid waste. The method comprises the following steps: (1) crushing straws; (2) mixing the straw powder and deionized water according to a mass ratio of 1: (19-21), stirring at a rotating speed of 120-180r / min, treating for 22-26h, fully and uniformly mixing, adjusting the pH value of the system to 3.4-3.7, adding 0.08-0.12 wt% of cellulase according to the mass of the straw, and carrying out enzymolysis at 49-51 DEG C for 2-4d to obtain an enzymatic hydrolysate; (3) yeast pre-fermentation: inoculating 4-6% v / v activated angel high-activity dry yeast into the enzymatic hydrolysate in the step (2) for anaerobic pre-fermentation, wherein the pre-fermentation time is 16-20 hours; and (4) anaerobic fermentation for methane production: adding 20-30% v / v of introduction sludge into the fermentation system in the step (3), and carrying out anaerobic fermentation for methane production, wherein the fermentation temperature is 36-38 DEG C. Compared with the prior art, the method has the advantages of being high in adaptability, short in treatment period, good in economic benefit, free of environmental pollution and the like, and has certain guidance and inspiration effects on engineering of producing methane from straw.

The invention discloses a method for producing hydrogen by using organic solid waste, and relates to the technical field of new energy. The method comprises the following steps: classifying the organic solid wastes, screening out organic matters and combustible substances, mixing the organic matters and the combustible substances, and crushing into a homogeneous material with the particle size of less than or equal to 50mm; drying the homogenized material to obtain a dried material of which the water content is less than or equal to 8%; feeding the dried material into a rotary kiln pyrolyzing furnace, mixing the dried material with a heat carrier in the rotary kiln pyrolyzing furnace, heating the dried material by flue gas through the cylinder wall of the rotary kiln pyrolyzing furnace and the heat carrier, and pyrolyzing the dried material at the pyrolyzing temperature of 450-750 DEG C to obtain oil gas and pyrolyzing slag; mixing the pyrolysis residues with a cosolvent, preparing a glass body in a gasification melting furnace, mixing oil gas with water vapor, and reacting in a fixed bed reactor to prepare synthesis gas; and preparing the synthesis gas into hydrogen. The pyrolysis efficiency is remarkably improved, fuel consumption is reduced, system energy consumption is correspondingly reduced, and low-temperature efficient pyrolysis is achieved.

The application discloses a solid waste treatment system and method based on gasification slag smoldering and organic solid waste pyrolysis, and belongs to the technical field of solid waste treatment. The system comprises a first reaction furnace and a second reaction furnace. The feeding mechanism, smoke outlet, heating mechanism and gas supply mechanism of the two reaction furnaces are combined and arranged. The condensing mechanism, flow distribution valve and gas purification / mixing device work cooperatively, and heat is transferred between the two reaction furnaces. The smoldering treatment of gasification slag and the pyrolysis treatment of carbon-rich organic solid waste can be accurately completed. The solid waste treatment system has simple system composition and convenient control. The high-value recycling of gasification slag and carbon-rich organic solid waste can be realized without using a large amount of external auxiliary energy. Low-oxygen CO-rich gas and pyrolysis semi-coke can be quickly prepared. The recycling rate of the available energy in the gasification slag and carbon-rich organic solid waste is improved. The treatment cost of the gasification slag and carbon-rich organic solid waste is reduced. The system has good economic value and practical value.

The invention provides an organic solid waste resource utilization disposal system and method.The system comprises a material collection module, an anaerobic fermentation module and a conversion separation module, the material collection module is used for collecting organic solid waste materials and controlling the organic solid waste materials to be conveyed to the anaerobic fermentation module; the anaerobic fermentation module is used for performing anaerobic fermentation on the collected organic solid waste materials to obtain a fermentation product and outputting the fermentation product to the conversion and separation module; wherein the fermentation product is used for representing a solid-liquid mixture after anaerobic fermentation; and the conversion and separation module is used for carrying out biodegradation on the fermentation product and carrying out split-flow treatment on the degradation product so as to respectively purify biogas in the degradation product and treat biogas residues in the degradation product to generate an organic fertilizer. The system can reduce external emission to the maximum extent, is efficient and environment-friendly, can fully realize resource utilization of organic solid wastes, and really constructs an environment-friendly and resource-circulating closed-loop treatment system.

The invention discloses an organic wet slurry low-temperature damp and hot coalification integrated reactor and system, and relates to the technical field of organic solid waste treatment. The system comprises a conveying system, a plurality of integrated reactor systems connected in parallel, a cooler, a solid-liquid separator and a central control unit. The integrated reactor system comprises an integrated reactor, a heater, a sensing unit and a reactor control unit. The integrated reactor adopts a unique inner and outer double-pipe layer design, and a heat exchange section, a heating section and a reaction section are sequentially formed, so that the integration of countercurrent flow heat exchange, heating and reaction is realized; a double-layer stirring wall scraper and a plurality of groups of ultrasonic vibrators are arranged in the heat exchanger, so that scales and cokes on a heat transfer surface can be removed on line; and through cooperative intelligent control of the reactor control unit and the central control unit, operation parameters and cleaning strategies are adjusted in real time. The industrial problems that in the traditional process, equipment is prone to being blocked, the heat transfer efficiency is low, and operation is unstable are solved, and efficient and long-period stable operation of coalification treatment of the organic wet slurry is achieved.

The utility model discloses a dry anaerobic feeding system, and relates to the field of organic solid waste anaerobic fermentation treatment.The dry anaerobic feeding system comprises a material mixing assembly and a discharging assembly, the material mixing assembly comprises a material mixing pool, and a spiral feeder communicated with the material mixing pool is obliquely installed on the outer wall of one side of the material mixing pool; a horizontal stirrer is rotatably mounted on the inner wall of one side of the mixing tank, a plurality of discharging pipes communicated with the mixing tank are arranged on the outer wall of the bottom of the mixing tank, and the discharging pipes are connected with a discharging assembly. According to the device, the material conveying range is wide through the arrangement of the spiral feeder, particularly, agricultural waste materials such as straw can be efficiently conveyed, the automatic impurity removing function is achieved through the arrangement of the automatic impurity removing unit of the discharging assembly, materials containing sand, gravel and impurities and high in quality can be conveyed, and the conveying efficiency is improved. The problems of feeding difficulty, feeding blockage and the like of dry anaerobic fermentation are solved.

The embodiment of the invention discloses a construction method of a multi-source organic solid waste whole-process substance flow and energy flow metabolic network diagram and a related device. A basic theoretical analysis and research framework is set up; constructing an urban typical organic solid waste material flow model according to the basic theoretical analysis and research framework; and according to the urban typical organic solid waste material flow model, constructing a Yifen city typical organic solid waste metabolic network. It can be seen that the embodiment of the invention is beneficial for solving the following problems: 1, composition and characteristics of the organic solid waste can be better understood by establishing a substance flow and energy flow metabolic network diagram, so that a more efficient and more economical treatment process is designed; 2, through the metabolic network diagram, the influence of the organic solid waste treatment process on the environment can be better known, so that measures are taken to reduce the influence of the organic solid waste on the environment.

This utility model relates to the field of organic solid waste treatment technology, and in particular to an aerobic fermentation waste heat recovery system. The aerobic fermentation waste heat recovery system includes a feeding device, a fermentation device, and a heat recovery power generation device. The heat recovery power generation device includes a heat collection unit and a thermoelectric generator unit. The heat collection unit is inserted into the chamber and directly contacts the material to collect the heat generated during fermentation and transfer it to the thermoelectric generator unit, which converts the heat into electrical energy. Because the heat collection unit can directly contact the material, it can directly and efficiently capture the heat generated by microbial fermentation inside the pile, reducing heat loss during the transfer process. The aerobic fermentation waste heat recovery system achieves heat collection and electrical energy conversion solely through the cooperation of the heat collection unit and the thermoelectric generator unit, eliminating the need for complex steam collection pipes, plate heat exchangers, and water-vapor separators, resulting in a simpler overall structure and reducing the difficulty and cost of system installation, disassembly, and daily maintenance.

This invention discloses a solid heat carrier heating device, comprising a pyrolysis reactor, a fluidized bed furnace, a gas-solid separator, a mechanical return feeder, and a flue gas generator. The pyrolysis reactor is used to feed solid pyrolysis reactants into the fluidized bed furnace for reaction. The gas-solid separator is used to separate the reaction products in the fluidized bed furnace into gas and solid components to obtain a solid heat carrier, which is then transported to the fluidized bed furnace for reaction via the mechanical return feeder. The flue gas generator is used to supply flue gas into the fluidized bed furnace to heat the solid pyrolysis reactants. This invention also discloses a flue gas generator. The solution of this invention is applicable to the pyrolysis of organic solid wastes such as waste plastics, oil sludge, tires, and sewage sludge. Through efficient combustion and heating methods, the large solid heat carrier furnace achieves high-efficiency pyrolysis carbon combustion, stable bed temperature and bed pressure, and has a function for regulating the flow rate of circulating solid particles.

The application discloses a kind of photothermal synergic catalysis co-pyrolysis system and method of marine organic solid waste, method includes the following steps: waste fishing net, plastic garbage and seaweed are crushed and mixed uniformly according to mass ratio (2-4):(3-5):(1-3);Mixed material and multifunctional composite photocatalyst prepared by seaweed are sent into moving bed reactor according to mass ratio (10-20):1, under the condition of concentrated solar energy leading, electric heating auxiliary, continuous co-pyrolysis is carried out;Pyrolysis product is separated by three-stage condensation to obtain heavy oil, light oil, water and gas.The method realizes the green cycle of "waste treatment", the catalyst cost is low, the degree of system intelligence is high, and provides an efficient, environmentally friendly, economically feasible innovative path for the resource utilization of marine organic solid waste.

The invention discloses a binary pseudocapacitance composite material for promoting anaerobic digestion of kitchen waste and a preparation method and application thereof, and belongs to the technical field of organic solid waste recycling and renewable energy sources. The wood chip biochar-polydopamine-Fe3O4 composite material with a core-shell structure is constructed by taking wood chips as raw materials, preparing biochar through low-temperature pyrolysis, forming an interface modification layer through polydopamine coating, loading Fe < 3 + > and carrying out secondary pyrolysis to generate Fe3O4 nanoparticles (40-110nm). The material can be recovered through a magnetic field (the recovery rate is greater than or equal to 90%), when the dosage is 0.8-1.2 g / L, the peak value of volatile fatty acid in an anaerobic digestion system is obviously reduced to be less than or equal to 400 mg / L, the methane accumulation yield is improved to be greater than or equal to 45%, the electron transfer efficiency of acid-producing bacteria and methanogens is synchronously optimized, and the system operation is stabilized.

The invention discloses a continuous feeding type ammonia reducing-nitrogen preserving-maturing promoting composting reactor and method, and belongs to the technical field of organic solid waste resourceful treatment and environmental engineering. The device adopts a mode of'four-zone sectional treatment + internal odor circulation + water vapor / ammonia gas management + adaptive aeration control 'to realize continuous feeding, zone synergistic fermentation and efficient nitrogen interception. The reactor integrates an ammonia gas and odor reduction unit in which electrodes assist microorganisms, a circulating pump drives gas to flow back, and a selective membrane is combined with activated carbon, and an aeration regulation and control system based on oxygen concentration feedback. And when a fermentation period is completed in about 20 days, ammonia emission and nitrogen loss are effectively reduced, decomposition is promoted, the quality of a compost product is improved, and the engineering value capable of being amplified and applied is achieved.

The application provides a method for enhancing anaerobic digestion of organic solid waste containing new pollutant antibiotics by circulating oxygen disturbance, and belongs to the technical field of solid waste resource treatment. The method introduces circulating and increasing micro-nano bubble oxygen water stress during the stable operation period of anaerobic digestion, uses the dynamic change of physical oxidation pressure to induce the adversity defense mechanism of microorganisms, and promotes the improvement of metabolic activity and optimization of community structure of functional flora in situ. By accurately regulating the key process parameters such as oxygen disturbance cycle, gradient dosing ratio and the like, the application not only avoids the excessive inhibition of oxygen on methanogens, but also significantly enhances the adaptability of the system to the environmental stress of new pollutants. The application has the advantages of no need for external agents, high physical mass transfer efficiency, significant yield increase and harmless effect, and is suitable for in-situ strengthening and deep performance improvement of anaerobic digestion systems of municipal sludge, livestock and poultry manure and kitchen garbage and the like.

The utility model discloses an organic solid waste compost heat recovery device which comprises an installation table, a controller installed on the installation table, a fermentation tank and an exhaust assembly installed on the installation table, a first motor installed on a barrel cover, a planet wheel assembly arranged on the lower end face of the barrel cover and comprising a main gear, a plurality of branch gears and an inner gear. The air exhaust assembly comprises a heat exchanger and an adsorption box, the heat exchanger and the adsorption box are connected with the installation table, the heat exchanger is communicated with the barrel cover and the adsorption box, an electronic thermometer is installed on the barrel body in a penetrating mode, and an air inlet assembly is arranged on the barrel body. The air inlet assembly comprises an annular pipe, an air inlet valve is installed at the air inlet end of the annular pipe, the annular pipe is connected with the barrel body, a plurality of second air inlet pipes are installed on the annular pipe, the second air inlet pipes are connected with the barrel body in a penetrating mode, and the feeding assembly and the planet wheel assembly are arranged, so that the opening frequency of the barrel cover is reduced, the doping rate of new and old compost is increased, and then the fermentation efficiency of the new compost is improved.

The invention relates to an organic solid waste pyrolysis device utilizing mirror reflection to gather solar energy and an operation method.The device is composed of a light reflection module, a heat transfer module, a heating module and a sample placing room, the light reflection module is composed of eight reflectors arranged around the sample placing room by 360 degrees and can reflect the solar energy to a heat collection plate, and the heat transfer module is used for transferring heat to the sample placing room; the heat collection plate converts solar energy into heat energy and transmits the heat energy to the heating module. The heating module is composed of a heating column and a heating disc and can evenly heat the sample placing room. Solar energy is gathered through the light reflecting mirror and the heat collecting plate and converted into heat energy, the heat energy is transmitted into the inner container through the heating column, and organic solid waste is pyrolyzed. The sample placing room adopts a sealing design, and temperature monitoring and automatic regulation and control are carried out through a temperature sensor and a heat radiation instrument. The device has a good solar energy utilization rate and a uniform heating effect, and can perform pyrolysis of organic solid wastes in an efficient and environment-friendly manner so as to achieve the purpose of resource utilization of the wastes.

The application belongs to the technical field of organic solid waste resource utilization and high-value conversion, and specifically discloses a dual-phase rare earth metal-based high-entropy oxygen carrier for waste plastic gasification, a preparation method and application thereof. a Ni b Co c Mg d M e O y , wherein a, b, c, d and e are respectively 5% to 35% of atomic percentage, a+b+c+d+e=100% is satisfied, M is a rare earth metal Ce or La, and y is in the range of 0 to 4 but not 0. The dual-phase structure formed after the introduction of the rare earth metal enhances the surface oxygen vacancy content of the oxygen carrier, is beneficial to the migration of the lattice oxygen to participate in the gasification reaction, the high-entropy oxygen carrier lattice is distorted, the metal-oxygen bond is weakened, and then the oxygen release capacity is promoted, the catalytic cracking capacity for waste plastics is improved, and the syngas yield and the oxygen carrier circulation stability are improved. The preparation method of the oxygen carrier is simple, can be widely used in the field of waste plastic gasification, and has high use value.

The utility model relates to agricultural waste treatment technical field discloses a kind of crop organic solid waste compaction devices, including box, pressure sensor and controller, hydraulic cylinder is fixedly connected with the top in box, compaction assembly is connected with the output end of hydraulic cylinder, limit slot is opened in box, support box is slidably connected in limit slot, lifting assembly is connected with the bottom in support box, limit component is connected with the side of box.The utility model has the advantages compared with prior art in that: in crop organic solid waste compaction device, lifting assembly is used to adjust the height of support plate, which is convenient to take out the compacted crop organic waste from the support box, and it is more convenient without damaging the briquetting; limit component is used to fix the support box in the limit slot for compaction treatment, which avoids the influence of shaking and facilitates subsequent extraction to take out the compacted waste block.

The application provides a gas emission reduction functional agent for composting and a preparation method and application thereof, relates to the technical field of organic solid waste resource processing, and comprises pyrolysis treatment of biomass raw materials to form microporous biochar, wherein the pyrolysis treatment adopts limited oxygen pyrolysis conditions, the microporous biochar and the porous inorganic carrier form a multi-stage pore channel skeleton system, and the biomass raw materials include bamboo chips, rice husks and wood chips. The gas emission reduction functional agent for composting and the preparation method thereof are characterized in that the zeolite and bentonite are pretreated to form a porous inorganic carrier, the microporous biochar is combined with the carrier, the functional factor grading release particles are formed by compounding and coating treatment, and finally the composite integration treatment is performed, so that the gas emission reduction functional agent with a multi-stage pore channel skeleton system and a synergistic effect is successfully prepared, the efficiency of gas emission reduction in the composting process is improved, the components are ensured to be released as needed, and the emission reduction effect of the functional agent is enhanced.

The invention discloses a method for producing medium-chain fatty acid through a core-shell structure magnetic polymer material reinforced biological carbon chain lengthening reaction, which comprises the following steps: by taking a perishable organic solid waste as a raw material, adding core-shell structure magnetic polypyrrole, adding a culture medium solution containing a substrate, adding a domesticated inoculum, and carrying out a reaction for 2-3 hours; a fermentation system for producing hexanoic acid through biological carbon chain lengthening is constructed for reaction, the reaction temperature is 30-40 DEG C, and the pH value is weak acidity; according to the magnetic polypyrrole with the core-shell structure, ferroferric oxide is used as a core, and polypyrrole is used as a shell; the problems that single magnetic particles are agglomerated, magnetic components are prone to loss, and traditional materials are difficult to recycle and large in adding amount are solved, and the performance stability and the reaction promoting capacity are enhanced by means of the structural advantages of the materials. Meanwhile, the efficiency of the carbon chain lengthening reaction and the yield of medium-chain fatty acid are remarkably improved, and high-valued conversion of the perishable organic solid waste is achieved.

The invention belongs to the technical field of organic solid waste recycling and high-value conversion, and particularly discloses a double-phase rare earth metal-based high-entropy oxygen carrier for waste plastic gasification and a preparation method and application of the double-phase rare earth metal-based high-entropy oxygen carrier. The oxygen carrier has a general formula of FeaNibCocMgdMeOy, a, b, c, d and e respectively account for 5%-35% of atoms, a + b + c + d + e = 100%, M is rare earth metal Ce or La, and y ranges from 0 to 4 but is not 0. The content of surface oxygen vacancies of the oxygen carrier is increased by a biphase structure formed after introduction of the rare earth metal, lattice oxygen migration is facilitated to participate in gasification reaction, lattice distortion of the high-entropy oxygen carrier occurs, metal-oxygen bonds become weak, oxygen release capacity is further promoted, catalytic cracking capacity on waste plastics is improved, and the catalytic cracking efficiency of the high-entropy oxygen carrier is improved. The yield of the synthesis gas and the cycling stability of the oxygen carrier are improved. The oxygen carrier disclosed by the invention is simple in preparation method, can be widely applied to the field of waste plastic gasification, and has relatively high use value.

The invention belongs to the related technical field of high-temperature asphalt, and discloses a method for directly preparing biological asphalt from biomass organic solid waste, the biological asphalt and application, the method comprises the following steps: (1) carrying out solvent heat treatment on the dried biomass organic solid waste to obtain an asphalt precursor; and (2) carrying out thermal modification on the asphalt precursor to obtain the biological asphalt. The biomass organic solid waste is actively and directly converted into the high-performance asphalt through a two-step process of'solvent heat treatment-thermal modification ', so that the high-performance asphalt becomes a unique main product, and the production process is completely optimized around the quality and quantity of the asphalt through the production mode; the core pain points that raw material supply is limited by upstream industries and properties are uncontrollable are fundamentally solved.

The invention discloses a process method for preparing green hydrogen by coupling biomass flameless pyrolysis gasification with steam reforming, and relates to the technical field of hydrogen energy preparation and organic solid waste recycling, and the process method comprises the following steps: in a high-frequency electromagnetic heating austenite alloy rotary kiln, carbon-containing organic matters are subjected to primary cracking by using a light quantum energy field excited by an alloy; combustible gas and solid carbon residues are mixed; the primary product is introduced into a light quantum reforming reactor, high-temperature superheated steam is introduced into the light quantum reforming reactor, in the reforming reactor, the high-temperature steam is dissociated into active [H] atoms and [OH] free radicals under the action of a light quantum field, the active [H] atoms and the [OH] free radicals are subjected to an efficient roaming chemical reaction with primary combustible gas and solid carbon, and hydrocarbon and carbon are preferentially converted into H2 and CO; finally, the reaction product is subjected to pressure swing adsorption or molecular sieve separation to obtain high-purity hydrogen, energy field precise excitation and chemical reaction cooperation are achieved, and the yield and selectivity of hydrogen are greatly improved.

The utility model provides an organic solid wastewater thermal dialysis treatment system which comprises a hydrothermal reactor (2) used for hydrothermal reaction, the hydrothermal reactor (2) is provided with a hollow cavity, the top of the hydrothermal reactor (2) is provided with a feed port (1), and the bottom of the hydrothermal reactor (2) is in fluid connection with a solid-liquid separator (4) used for solid-liquid separation through a sealing valve (3); the bottom of the solid-liquid separator (4) is in fluid connection with an array dialysis tube (5) for dialysis; a slurry discharge hole (6) is formed in the side surface of the bottom of the array dialysis tube (5), and an opening is formed right below the array dialysis tube (5). According to the device disclosed by the utility model, the high-water-content organic solid waste can be subjected to hydrothermal treatment only at lower temperature and lower pressure, dialysis treatment is added after the hydrothermal treatment, high-value products are fully and effectively extracted, the requirements on equipment materials and technologies are low, the construction cost is relatively low, and the safety is high.

The invention relates to the technical field of solid waste pyrolysis, in particular to an organic solid waste pyrolysis system based on electromagnetic medium-frequency heating, which comprises an intelligent control unit, a feeding unit, a vibration screening unit, a gradient magnetic suction unit, an eddy current separation unit and a pyrolysis unit, when the humidity sensor signal indicates that the real-time humidity exceeds a preset humidity threshold value, the vibration frequency of the vibration screening unit is improved, the micro-amplitude vibration amplitude of the gradient magnet set is increased, and the space arrangement angle of the gradient magnet set and the screen inclination angle of the vibration screening unit are reduced; and when a signal of the metal content sensor indicates that the real-time metal content exceeds a preset content threshold value, firstly, the space arrangement angle of the gradient magnet group is reduced, the vibration frequency of the vibration screening unit is improved, and then the eddy current frequency of the eddy current sorting unit and the inclination angle of the sorting groove are increased. The separation precision, the processing efficiency and the system stability can be remarkably improved.

The invention discloses a method for co-processing waste incineration fly ash based on ultrafast carbon thermal reduction, organic solid wastes such as waste rubber and plastic are converted into graphene by utilizing high-voltage instantaneous current, and ultrafast carbon thermal reduction processing of the waste incineration fly ash is realized by utilizing excellent conductivity and reducibility of the graphene. According to the present invention, the waste incineration fly ash is subjected to detoxification so as to ensure the efficient and synchronous removal of the heavy metal and the dioxin in the waste incineration fly ash, the detoxified product is applied to the cement-based composite material so as to optimize the pore structure of the cement binder system and improve the hydration process, and the mechanical property of the building material product is improved, such that the harmless treatment and the resource utilization of the waste incineration fly ash are achieved. The material can be heated to over 3000 DEG C within an extremely short time, internal chemical bonds of the material in a non-equilibrium state are initiated to break and recombine, and evaporation removal of non-carbon elements such as heavy metal and thermal degradation of dioxin are promoted. And the environmental risk of the waste incineration fly ash is remarkably reduced, and co-treatment of the waste incineration fly ash, waste rubber and plastic and other high-carbon organic solid waste can be achieved.

The invention discloses a rural biomass green resourceful treatment method based on a microwave pyrolysis technology, and belongs to the technical field of organic solid waste high-value utilization. According to the method, efficient conversion of rural biomass (straw, fruit tree branches and the like) is achieved through four core steps of pretreatment, microwave pyrolysis, product collection and cyclic utilization and intelligent regulation and control. In the pretreatment stage, the raw materials are crushed until the particle size is less than or equal to 500 microns, dried until the moisture is less than or equal to 15% and homogenized; microwave pyrolysis adopts a four-section reactor, preheating, pyrolysis catalytic cracking and cooling are sequentially completed in an inert atmosphere, and COO-rich flue gas is synchronously introduced to activate biochar; after the product is separated, the biochar is used for soil improvement or carbon sequestration, the bio-oil is used as a fuel or a chemical raw material, and the biogas is purified and then circulated back to the reactor to be combusted to supply energy. The method is high in heat efficiency, low in energy consumption and high in resource utilization rate.

The invention discloses temperature-sensitive-oxygen-release dual-mode hydrogel cooperatively regulated by oxygen and microorganisms and application of the temperature-sensitive-oxygen-release dual-mode hydrogel in aerobic composting, and belongs to the technical field of organic solid waste treatment and recycling. The technical problem that in the aerobic composting process, released oxygen is not matched with microbial metabolism requirements is solved. The temperature-sensitive-oxygen-release dual-mode hydrogel prepared by the invention is of a spherical structure and sequentially comprises a CaO2 core, an EC film for wrapping the CaO2 core, a temperature-sensitive hydrogel shell for wrapping the EC film and a compound microbial agent positioned on the temperature-sensitive hydrogel shell from inside to outside. The temperature-sensitive material responds to the temperature change of the pile body, when the pile temperature reaches 45 DEG C, the shell is triggered to shrink, the isolating layer is destroyed, oxygen is released and thermophilic bacteria are activated, on-demand oxygen supply and microbial agent controlled release are achieved, the problem of local oxygen deficit of the pile body can be effectively solved, the composting efficiency and quality are improved, and the method is suitable for treatment of organic solid waste such as agricultural waste and municipal sludge.

The application discloses a pyrolysis furnace carbon black and pyrolysis tail gas cooling treatment device, the pyrolysis furnace includes the cracking chamber, condensing tower and discharge pipe, organic solid waste is cracked in the cracking chamber and generates carbon black and pyrolysis gas, pyrolysis gas is condensed in the condensing tower and generates pyrolysis oil, carbon black is discharged to the outside in the discharge pipe, the cooling treatment device includes the collection box, screw conveyor and cooling device, the collection box is installed to the outlet of the discharge pipe, the first filter plate is arranged in the collection box, and the first filter plate divides the collection box into the transfer area and the oil collection area. The screw conveyor is inclined and connected to the transfer area of the collection box, the screw conveyor includes the heat-conducting conveying pipe and the spiral conveying blade, and the heat-conducting conveying pipe is provided with a vertical downward discharge port. The cooling device is wrapped to the outer wall of the heat-conducting conveying pipe to cool the carbon black and pyrolysis gas in the screw conveyor, realize the recycling treatment of the pyrolysis gas, and facilitate the collection of the carbon black.