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61,005 resultsShowing papers similar to Hydrogen and Methane Production from Styrofoam Waste Using an Atmospheric-pressure Microwave Plasma Reactor
ClearPolyurethane Foam Waste Upcycling into an Efficient and Low Pollutant Gasification Syngas
Researchers modeled the gasification of polyurethane foam waste under various conditions, finding that optimized thermochemical treatment can convert this common polymer waste into hydrogen-rich syngas with low pollutant output, offering a viable energy recovery pathway for difficult-to-recycle plastic foam materials.
The myth of hazardous-to-wealth concept: transformation of marine microplastics to pyrolysis gas
Researchers collected marine microplastics from a Southeast Asian coastal area and tested whether pyrolysis could convert them into useful syngas, achieving an average syngas yield of about 35% and producing a highly porous char. The study demonstrates a potential waste-to-energy pathway that could both reduce the environmental load of marine microplastics and generate valuable gaseous fuel products. Converting microplastic waste into energy resources could provide an economic incentive for collection and remediation efforts.
Production of combustible fuels and carbon nanotubes from plastic wastes using an in-situ catalytic microwave pyrolysis process
Researchers developed an in-situ catalytic microwave pyrolysis process using ZSM-5 catalyst to convert plastic waste into hydrogen, liquid fuel, and carbon nanotubes, demonstrating a promising route for both energy recovery and valuable material production from plastic pollution.
Complete degradation of polystyrene microplastics through non-thermal plasma-assisted catalytic oxidation
Researchers developed a two-stage non-thermal plasma system for degrading polystyrene microplastics at low temperatures. Using dielectric barrier discharge plasma coupled with a catalytic oxidation step, they achieved near-complete conversion of polystyrene particles to carbon dioxide within 60 minutes. The study demonstrates a promising technology for breaking down microplastic pollution without requiring high-temperature incineration.
Chemical Recycling of Plastics by Microwave‐Assisted High‐Temperature Pyrolysis
Researchers developed a microwave-assisted high-temperature pyrolysis method that continuously breaks down mixed plastic waste and plant oil into useful chemicals like ethylene and propylene. This chemical recycling approach could help divert plastic waste from the environment while producing renewable building blocks for new materials.
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Researchers developed a scalable continuous low-pressure hydrothermal processing method to convert polystyrene plastic waste into valuable monomers, operating without catalysts, producing less char than pyrolysis, and requiring substantially lower pressures than supercritical methods.
Enhanced Interfacial Adhesion of Polystyrene Bead Foams by Microwave Sintering for Microplastics Reduction
Researchers developed a microwave sintering method to improve the bonding between polystyrene foam beads, reducing the likelihood that the foam breaks apart and releases microplastic particles. Polystyrene foam fragmentation is a significant source of persistent microplastic pollution in aquatic environments.
Evaluation the impact of polystyrene micro and nanoplastics on the methane generation by anaerobic digestion
Researchers tested the effect of polystyrene microplastics and their leached chemical additives on anaerobic digestion systems, finding that microplastic presence reduced methane generation efficiency and disrupted microbial community function.
Size-dependent effects of polystyrene microplastics on anaerobic digestion performance of food waste: Focusing on oxidative stress, microbial community, key metabolic functions
Researchers investigated how polystyrene microplastics of different sizes affect anaerobic digestion of food waste and found that smaller particles caused greater inhibition of methane production, with reductions up to 33%. The study suggests that small microplastics induce more oxidative stress in microbial communities and suppress key enzymes involved in methane-producing metabolic pathways.
Polystyrene microplastics and nanoplastics distinctively affect anaerobic sludge treatment for hydrogen and methane production
Researchers found that polystyrene microplastics and nanoplastics have distinct effects on anaerobic sludge treatment, with nanoplastics generally inhibiting both hydrogen and methane production while microplastics could actually promote hydrogen generation under certain conditions.
ReaxFF molecular dynamics studies on the impact of reaction conditions in polystyrene conversion through hydrothermal gasification
Researchers used computer simulations to model how hydrothermal gasification — a process that uses hot pressurized water — breaks down polystyrene microplastics into hydrogen-rich syngas, finding that temperature is the key control factor and that water plays a dual role in both aiding and hindering the reaction.
Hydrogen production from plastic waste: A comprehensive simulation and machine learning study
Researchers used computer simulations and machine learning to optimize hydrogen production from polystyrene and polypropylene plastic waste through gasification. They found that increasing the gasification temperature up to 900 degrees Celsius significantly boosted hydrogen output, while higher pressures reduced production. The study demonstrates that converting plastic waste into hydrogen fuel could be an efficient way to address both energy needs and plastic pollution.
Renewable aromatics from the degradation of polystyrene under mild conditions
Researchers developed a bimetallic iron-copper catalyst that breaks down polystyrene plastic into useful aromatic chemicals at just 250°C, producing a liquid yield of 66% without coke or gas waste. This low-temperature method offers a promising way to convert polystyrene waste into valuable raw materials for industry.
Effect of cold plasma pretreatment on biodegradation of high-density polyethylene (HDPE) and polystyrene (PS)
This study found that cold atmospheric plasma pretreatment of high-density polyethylene and polystyrene significantly increases surface wettability and promotes subsequent microbial biodegradation, suggesting plasma treatment as a practical strategy to accelerate plastic breakdown.
Deciphering the inhibitory mechanisms of polystyrene microplastics on thermophilic methanogens from the insights of microbial metabolite profiling and metagenomic analyses
Researchers studied how polystyrene microplastics affect methane production during the thermophilic anaerobic digestion of food waste. They found that increasing microplastic concentrations reduced methane yield by up to 47.8%, driven by the accumulation of reactive oxygen species that inhibited key enzymes in the digestion process. Metagenomic analysis revealed that microplastics downregulated genes involved in methane metabolism, providing new insights into how plastic contamination can disrupt waste treatment systems.
Vacuum pyrolysis depolymerization of waste polystyrene foam into high-purity styrene using a spirit lamp flame for convenient chemical recycling
Researchers developed a simple method for recycling waste polystyrene foam by vacuum pyrolysis over a spirit lamp flame for just 20 minutes, producing styrene monomer at 98% purity without additional purification steps, enabling low-cost closed-loop chemical recycling.
Deciphering the role of polystyrene microplastics in waste activated sludge anaerobic digestion: Changes of organics transformation, microbial community and metabolic pathway
Researchers found that polystyrene microplastics in sewage sludge affected the anaerobic digestion process used to treat waste, with low concentrations slightly boosting methane production but high concentrations reducing it by up to 11%. The microplastics disrupted key bacterial communities and enzyme activities needed for proper waste breakdown. This matters because wastewater treatment plants handle enormous volumes of microplastic-laden sludge, and impaired digestion could reduce treatment effectiveness and release more pollutants into the environment.
Investigation of the influence of polystyrene microplastics in wastewater on anode biofilm viability and electron transfer in microbial fuel cells performance
Researchers found that polystyrene microplastics in wastewater reduce the electricity-generating ability of microbial fuel cells — devices that use bacteria to turn waste into power — by disrupting the bacterial biofilms that transfer electrons to electrodes. Carbon-based electrodes were more resistant to microplastic interference than metal ones, suggesting material choice matters when designing systems treating microplastic-contaminated water.
ПЕРСПЕКТИВИ НИЗЬКОТЕМПЕРАТУРНОГО КАТАЛІТИЧНОГО КРЕКІНГУ ПОЛІСТИРОЛУ ЗА АТМОСФЕРНОГО ТИСКУ
Researchers reviewed low-temperature catalytic cracking of polystyrene at atmospheric pressure as a chemical recycling strategy, emphasizing how it avoids toxic emissions and produces liquid oils and fuel additives. The approach is presented as more energy-efficient than mechanical or thermal recycling methods.
Fuel cell and electrolyzer using plastic waste directly as fuel
Researchers demonstrated an electrochemical cell that converts solid plastic waste directly into electricity or hydrogen gas without incineration or gasification, using an acidic solution to dissolve polyurethane at 100–200 °C and oxidize it at a porous carbon anode.
Evaluating the Effects of Different Pretreatments on Anaerobic Digestion of Waste Activated Sludge Containing Polystyrene Microplastics
Researchers found that thermal and chemical pretreatments improved methane yields by 17-20% during anaerobic digestion of waste activated sludge containing polystyrene microplastics, though chemical methods caused greater leaching of additives from the plastic particles.
A Comprehensive Review on the Thermochemical Treatment of Plastic Waste to Produce High Value Products for Different Applications
This review summarizes methods for converting plastic waste into valuable products using high-temperature chemical processes like pyrolysis and plasma technology. These approaches can produce hydrogen fuel, carbon nanotubes, and other useful materials from plastic that would otherwise become pollution. Reducing plastic waste through better recycling technology is important because most microplastic pollution originates from improperly managed plastic products.
Acoustic and thermal characterization of a novel sustainable material incorporating recycled microplastic waste
Researchers created a new eco-friendly foam material by embedding recovered marine microplastics into a bio-based matrix, producing an open-cell insulating material with strong acoustic and thermal properties. The innovation offers a potential path to upcycle hard-to-recycle mixed marine plastic waste into useful building and industrial insulation products.
Recovering hydrogen from PS, LDPE and HDPE microplastics via UV-driven photolysis and TiO2-based photocatalysis
Scientists used UV light — both direct photolysis and titanium dioxide photocatalysis — to break down polystyrene, LDPE, and HDPE microplastics and capture the released hydrogen gas as a potential clean fuel. The dataset documents hydrogen yields and conditions across the different plastic types and treatment methods. This approach could offer a dual benefit: destroying plastic waste while generating renewable hydrogen energy.