827results about "Waste processing" patented technology

Chemical recycling facilities for processing mixed plastic waste are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy generation / energy production facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.

A recycling system and a recycling method for a photovoltaic cell module. The recycling system for the photovoltaic cell module comprises a pyrolysis device (410), a separation device (500), and a gasification device (600); a discharge port of the pyrolysis device (410) is communicated with a feed port of the separation device (500); the separation device (500) is used for separating silicon cells from pyrolyzed solid materials; a discharge port of the separation device (500) is communicated with a feed port of the gasification device (600), so that the separated silicon cells enter the gasification device (600); the gasification device (600) is used for gasifying silver and aluminum on the silicon cells. The gasification device (600) is used to gasify silver and aluminum on the silicon cells, so that a pure silicon wafer is obtained; the silicon cells are treated without using a chemical medicinal liquid, so that no acid-base wastewater containing metal ions is generated. Therefore, the recycling difficulty of the photovoltaic cell module can be reduced.

Proposed is a food waste disposal apparatus for automatically discharging food waste by compressing (naturally dewatering), cutting, and drying food waste. More specifically, proposed is a food waste disposal apparatus having a corrugated part provided at an input hole so that same can be bent in all directions, and thus construction is facilitated, and having, at a predetermined distance away from a drying drum that generates high heat, an exhaust fan for discharging internal air of a drying and discharging part, so as to minimize breakdown of the exhaust fan caused by high heat, and enable vibration and noise of the exhaust fan to be prevented.

The invention discloses a recovery device and a recovery method for a photovoltaic multi-layer stacked assembly. The recovery device comprises a dismounting unit, a pyrolysis unit and a waste gas treatment unit which are arranged in sequence, the pyrolysis unit comprises a tunnel kiln, a bearing assembly and a conveying assembly. The recycling method comprises the steps that S1, the disassembling unit is used for disassembling, and the frame is stripped; s2, the photovoltaic multi-layer laminated assembly is sent to a pyrolysis unit for pyrolysis, and a glue film layer in the photovoltaic multi-layer laminated assembly is removed; and S3, the waste gas is discharged after being treated. By means of the innovative disassembling system, the multi-plate stacking tunnel kiln pyrolysis scheme and the multi-stage waste gas treatment system, the industrial production capacity of treating 1-3 tons of photovoltaic panels per hour can be achieved, the pyrolysis effect is good, the silicon material recovery rate can reach 98.5% or above, energy consumption is low, and the tail gas emission index is superior to the national standard by 50% or above.

The invention provides a high-value recovery method and device for a retired double-glass photovoltaic module. The high-value recovery method comprises the four steps of lossless disassembly of a frame and a junction box, gradient separation of double-sided glass, segmented pyrolysis of inert gas and material sorting. On the basis of gradient pyrolysis and flexible separation and recovery technologies, nondestructive recovery of the double-sided glass is realized, and complete separation of the double-sided glass is realized by gradient heating and flexible stripping technologies; high-value battery pieces are reserved, and thermal damage is avoided through segmented pyrolysis and ultrasonic vibration; resources are circulated in a closed-loop mode, the reutilization rate of glass, battery pieces and welding strips is high, and the retired double-glass assembly can achieve all-material closed-loop recycling.

A computer-implemented method can be used for controlling sorting of plastic compounds. The method involves providing a computer-based database containing entries on a plurality of markers each identifying a specific plastic compound; receiving scan data from a sample of a plastic compound; identifying a marker in the sample of the plastic compound based on the received scan data and the plurality of markers of the database; and sorting of plastic compounds based on the identified marker of the sample of the plastic compound.

An apparatus for sampling landfill gas from a landfill flowing through a pipe. The apparatus may comprise: an enclosure configured to receive a section of the pipe; a gas sampling port in the section of the pipe; at least one sensor device disposed in a region of the enclosure, the at least one sensor being coupled to the section of the pipe through the gas sampling port; and thermal insulation positioned to retain heat from the section of the pipe in the region of the enclosure. A method of operating a landfill gas recovery system. The method may comprise: flowing gas from a well riser pipe through a sampling subsystem to a collection system; and heating a portion of the sampling subsystem with the gas flowing from the well riser pipe to the collection system.

An apparatus for sampling landfill gas from a landfill flowing through a pipe. The apparatus may comprise: an enclosure configured to receive a section of the pipe; a gas sampling port in the section of the pipe; at least one sensor device disposed in a region of the enclosure, the at least one sensor being coupled to the section of the pipe through the gas sampling port; and thermal insulation positioned to retain heat from the section of the pipe in the region of the enclosure. A method of operating a landfill gas recovery system. The method may comprise: flowing gas from a well riser pipe through a sampling subsystem to a collection system; and heating a portion of the sampling subsystem with the gas flowing from the well riser pipe to the collection system.

Provided is a sorting method for valuable resources, including a thermal treatment step of thermally treating a target containing valuable resources, to melt aluminum and separate a melt, a pulverizing step of pulverizing a thermally treated product remaining after the melt is separated, to obtain a pulverized product, a magnetic sorting step of sorting the valuable resources from the pulverized product by a magnetic force, and a wind force sorting step of sorting one valuable resource from another valuable resource in the valuable resources by a wind force.

The present invention relates to a resin-based nano-iron oxide enhanced microbial inoculant, its preparation method and application. After mixing the resin-based nano-iron oxide, the microbial inoculant and kitchen waste, at room temperature, the resin-based nano-iron oxide can enhance the degradation of kitchen waste by the microbial inoculant through multiple functions such as accelerating microbial proliferation, inducing the highly active expression of functional proteases, and accelerating the electron transfer process. The alternation of aerobic and anaerobic environments can give full play to the role of the microbial inoculant, and the metabolites have high biodegradability. After a reaction at room temperature for 3 to 5 hours, the weight loss rate of kitchen waste can reach 80% to 99%. The technology of the present invention is simple, has low energy consumption and no secondary pollution, and can effectively achieve the goals of reducing, recycling and harmless treatment of kitchen waste.

The invention discloses a circulating assembly line for pyrolyzing waste photovoltaic panels. The device comprises a feeding section, a pyrolysis section, a discharging section and a recovery section, a material conveying tray is arranged on the feeding section, the feeding section comprises a linear material conveying section and a rotary material conveying section, the tail end of the linear feeding section is connected with the head end of the rotary section, the linear feeding section comprises a feeding device, and the feeding device is used for placing waste photovoltaic panels on the rotary tray; the head end of the pyrolysis section is connected with the tail end of the rotary feeding section, and the pyrolysis section comprises a pyrolysis furnace for heating the waste photovoltaic panel; the discharging section comprises a linear discharging section and a rotary discharging section; the head end of the recycling section is connected with the tail end of the rotary discharging section, the tail end of the recycling section is connected with the tail end of the discharging section, the recycling section comprises a collecting device, and the collecting device is used for collecting waste photovoltaic panels after pyrolysis. In the process of crushing and recycling the waste photovoltaic panels, the links of feeding, decomposing, recycling and conveying do not need manpower participation, and the recycling efficiency is greatly improved.

A method for valorizing refuse material comprises a selective pyrolysis, based on: a first step of pyrolysis of the biogenic fraction, with at least one subsequent condensation step, and a second step of pyrolysis of the synthetic fraction with at least one subsequent condensation step; wherein the first and second pyrolysis steps are configured in series; wherein the first pyrolysis step is configured to extract at least a fraction of biogenic combustible gas which continues to the first condensation step, and a fraction of solid material that is transported to the second step of pyrolysis of the synthetic fraction, which is carried out at a higher temperature than the first pyrolysis step, and which is configured to obtain a fraction of synthetic combustible gas which continues to the second condensation step, and a fraction of solid material.

To provide a method for more easily recovering resources from solar cell modules. [Solution] The photovoltaic module resource recovery method includes a crushing step S1 in which the solar module 100 is crushed while the solar cell 10, the sealing material 20, the back sheet 30 and the substrate 40 are integrated together, and a separation step in which the crushed material produced in the crushing step is rubbed together to turn the solar cell in the crushed material into a powder form and to separate the sealing material fragments, the back sheet fragments and the substrate fragments in the crushed material from one another.

This invention belongs to the field of photovoltaic recycling, specifically relating to a method for the comprehensive recycling of waste photovoltaic modules, comprising: disassembling waste photovoltaic panels to separate photovoltaic laminates, aluminum frames, and junction boxes; crushing the photovoltaic laminates to obtain photovoltaic crushed material; subjecting the photovoltaic crushed material to a decomposition reaction to break down the EVA adhesive into non-adhesive molecules; sorting the decomposition reaction-treated photovoltaic crushed material to separate glass, plastic backsheets, and copper powder to obtain a silicon powder mixture; dissolving the silicon powder mixture to obtain a silver-containing solution and silicon powder precipitate; separating the silicon powder precipitate and converting the silver-containing solution into elemental silver for recycling. This invention performs in-depth processing based on physical sorting, further purifying the silicon powder while obtaining valuable metallic silver, increasing economic benefits, reducing recycling costs, and achieving efficient and green recycling of photovoltaic modules.

The invention provides a waste photovoltaic panel pyrolysis nondestructive recovery system and method, and relates to the technical field of photovoltaic panel pyrolysis, the system comprises a pretreatment unit, a mechanical treatment unit and a chemical treatment unit, the pretreatment unit is used for dismounting an aluminum frame, a junction box and a back plate on a waste photovoltaic panel; the mechanical treatment unit comprises a low-temperature pyrolyzing furnace and a cutting machine which are connected with each other, the low-temperature pyrolyzing furnace is connected with the pretreatment unit and is used for softening an EVA adhesive film on the waste photovoltaic panel, and the cutting machine is used for cutting the softened EVA adhesive film so as to separate a glass sheet from a battery piece; the chemical treatment unit comprises an acid-base treatment module and an electrochemical recovery module which are connected, the acid-base treatment module is connected with the cutting machine and used for recovering aluminum back electrodes on the battery pieces, and the electrochemical recovery module is used for electrolyzing and recovering silver electrodes on the battery pieces to obtain silicon wafers. According to the invention, nondestructive recovery of the silicon wafer can be realized, the recovered silicon wafer can be directly reused for photovoltaic panel production, and the production cost of the photovoltaic panel is reduced.

In a system and a method for reprocessing ultra-high molecular weight polymer film offcuts, the system comprises a feed device 202 and a comminution device 203. The feed device is configured to provide an ultra-high molecular weight polymer film offcut to the comminution device. The comminution device comprises at least one cutting screen, wherein the cutting screen comprises a plurality of screen openings and a plurality of cutting projections, wherein at least one cutting projection spans a cutting opening allocated to it, and wherein the comminution device is configured to generate relative motion between the cutting screen and the fed polymer film offcut in order to comminute the polymer film offcut.

To provide a chlorine-containing-waste treatment device, etc., with which it is possible to reduce the volume of an obtained regenerated article, to obtain a regenerated article in which the chlorine content is reduced by a substantial amount, and to obtain a regenerated article in which the chlorine content is further reduced by rapidly using the obtained regenerated article as a resource.SOLUTION: A chlorine-containing-waste treatment device 1 has: a pressure-resistant container 11 provided with an introduction port 2, a residual steam discharge port 31, and a regenerated article discharge port 4; and superheated steam supply means 5 located within the pressure-resistant container, wherein the chlorine-containing-waste treatment device comprises residual steam suction / discharge means 3 for performing hydrolysis treatment and suctioning / discharging residual steam generated due to the hydrolysis treatment from the residual steam discharge port 31 to the outside of the pressure-resistant container 11 when an electric resistance value pertaining to the agitation resistance of a treated product of the chlorine-containing waste falls.SELECTED DRAWING: Figure 1

The present invention relates to a method for digesting biodegradable packaging waste and an apparatus thereof. Specifically, the present invention relates to a method of treating biodegradable packaging waste prior to subjecting the biodegradable packaging waste to a biological valorisation process and an apparatus thereof. The apparatus includes a tank for receiving the biodegradable packaging waste therein, the tank comprises a top portion and a bottom portion below the top portion, an air supply module adapted to supply air into the tank, a microbe injector adapted to inject mesophilic microbe into the tank, such that the tank is adapted to receive the biodegradable packaging waste, air and mesophilic microbe therein, wherein the biodegradable packaging waste is subjected to mesophilic aerobic digestion prior to conveying the biodegradable packaging waste from the tank to a biological valorisation system to subject the biodegradable packaging waste to the biological valorisation process.

Disclosed in the present invention are a device and a method for safely storing aluminum slag. The device comprises a drying bin and a storage bin, wherein a side wall of the drying bin is provided wi

The invention belongs to the technical field of photovoltaic recycling, and particularly relates to a photovoltaic module cleaning and recycling method which comprises the following steps: crushing and disassembling a cleaned photovoltaic module to obtain crushed small-particle-size fragments; freezing the small fragments, crushing again, selecting first-grade fine particles after crushing, and putting the first-grade fine particles into a supercritical water oxidation instrument for EVA (Ethylene Vinyl Acetate) decomposition; the decomposed product enters a centrifugal machine to be graded, secondary coarse particles are separated out, and the secondary coarse particles are subjected to acid leaching; and grading the mixed solution after acid leaching, and screening out the silicon-containing micro-nano material and the silver-containing slurry. By introducing the process steps of mechanical disassembly, liquid nitrogen freezing, superfine grinding and the like, efficient recovery of metal silver and silicon materials in the retired photovoltaic module can be realized.

The invention provides a method for efficiently separating a photovoltaic module at low temperature based on a dry ice refrigerant, which comprises the following steps of: firstly, carrying out primary treatment including disassembly on the photovoltaic module to obtain an integral piece mainly formed by combining glass, a silicon wafer and a back plate, and then cutting the obtained integral piece to obtain a block piece to be separated, and the block-shaped piece to be separated is soaked in a dry ice refrigerant for 30-50 s, the temperature is kept at-45 DEG C to-50 DEG C in the soaking process, and after the time is up, the block-shaped piece to be separated is taken out, and back plate separation is achieved by applying external force. According to the invention, the backplane separation of the photovoltaic module can be realized in an extremely short time by using the dry ice refrigerant, and the separation efficiency is far higher than that of the existing separation means; and a contrast experiment finds that the supersaturated CO2 gas in the dry ice type refrigerant is remarkably beneficial to the separation efficiency and the separation effect of the back plate, a new way is provided for the photovoltaic module on the separation of the back plate, and the method can be used as a foundation for the development of a follow-up technology.

Solid waste that includes a mixture of wet organic material and dry organic material can be are separated using mechanical separation to produce a wet organic stream enriched in wet organics and a dry organic stream enriched in dry organics. The separated wet organic stream and dry organic stream are separately converted to renewable or recyclable products using different conversion techniques particularly suited for the separated wet and dry organic streams.

The invention discloses a photovoltaic module separation and recovery method and system, and the method comprises the following steps: S1, providing a photovoltaic module, damaging a rigid part in the photovoltaic module, and enabling the rigid part in the photovoltaic module to be connected with a non-rigid part of the photovoltaic module; s2, the photovoltaic module is put into a wet-process unsealing container to be soaked in a wet-process unsealing solution, and crushed materials of the photovoltaic module are separated in the unsealing process; s3, EVA glue, a metal enrichment solution, PVF powder, glass and a silicon wafer in the photovoltaic module are screened out; the defects that in the wet recycling process of the waste photovoltaic module, the peptizing link time is too long, the component separation difficulty is large, a wet deblocking reactor is huge, and the operation cost is high are overcome, separation and recycling of glass, swelling EVA, silicon, a metal enrichment solution and PVF powder are achieved, high-value reutilization of a PET material is achieved, and the blank that the swelling PET material cannot be reutilized is filled up.

The present invention provides a method for selectively extracting and recovering pure polyolefin polymers from waste containing a plurality of polymers by selectively dissolving one or more polymers from a mixture using one or more solvents at different temperatures. The present invention generally proposes a vegetable oil-based recovery process comprising essentially three main steps, i.e. Extraction of spent polyolefin from mixed waste by dissolution in vegetable oil, advanced purification of the polyolefin by gradual reduction of the pore size of each filter using sequential filters; and precipitating the selected and / or purified polyolefin in a liquid miscible with the vegetable oil. The invention also provides a polyolefin product having a purity greater than 99% recovered from the process.

The material sorting equipment comprises a first granularity sorting device, the first granularity sorting device is connected with a shape sorting device and a specific gravity sorting device, and the shape sorting device is connected with the first granularity sorting device; the specific gravity sorting device is connected with the second granularity sorting device, and the second granularity sorting device is connected with the first optical characteristic sorting device and the second optical characteristic sorting device. The method comprises the steps that (1) the waste assemblies enter the first granularity sorting device to be sorted; (2) the shape sorting device sorts out metal strips, and the step (1) is repeated for other substances; (3) a glass mixture and a silicon wafer mixture are sorted out by the specific gravity sorting device and enter a second granularity sorting device and a second optical characteristic sorting device respectively; 4, the silicon wafer mixture is sorted by the second granularity sorting device and enters the first optical characteristic sorting device.The device has the advantages that the recovery speed and the recovery rate of glass, silicon wafers and metal strip materials in photovoltaic module recovery are increased.

Embodiment herein discloses methods and devices for waste management by using an artificial intelligence based waste object categorizing engine. The method includes acquiring at least one image and detecting at least one waste object from the at least one acquired image. Additionally, the method determines that the at least one detected waste object matches with a pre-stored waste object and identifies a type of the detected waste object using the pre-stored waste object. Furthermore, the method includes displaying the type of the detected waste object based on the identification.

A method is provided for recycling an aerosol generating article comprising a non-liquid aerosol generating material and an inductively heatable susceptor. The method comprises a first step of shredding the aerosol generating article to break up the non-liquid aerosol material and the inductively heatable susceptor. The method comprises a second step of separating the inductively heatable susceptor and the non-liquid aerosol generating material.

A method of treating an auxiliary article for use in the manufacture of an article comprising an epoxy polymer is provided. The method includes providing an auxiliary article for use in the manufacture of an epoxy polymer, wherein the auxiliary article is contaminated by a contaminant including an uncured, partially cured, and / or fully cured epoxy polymer. Further, the contaminated auxiliary article is exposed to a release agent to release contaminants from the auxiliary article and form contaminant by-products including the release agent and the contaminants, ultimately separating the auxiliary article from the contaminant by-products. In the method, the epoxy polymer is an acid-cleavable epoxy polymer, and the release agent includes an acid.

The invention discloses a capacity expansion method of a household kitchen waste processor, which comprises the following steps: after a processing program is started, through a detection step, a control unit continuously detects and records the temperature and relative humidity of a temperature and humidity detection point through a detection element arranged at the temperature and humidity detection point of the kitchen waste processor; through the judging and reminding step, the control unit calculates and judges that the temperature rising speed of the detected temperature is not higher than a set threshold value, when the temperature rising speed is not higher than the threshold value, the user is reminded to open the cover again and add garbage into the treatment barrel in an acousto-optic reminding mode, and the treatment program continues to be operated through the cover closing control unit. According to the invention, the garbage disposal capacity of the household kitchen garbage disposer is expanded to more than three times of the actual physical capacity, so that the household kitchen garbage disposer with small capacity has the capacity of disposing large-capacity garbage.