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Papers
61,005 resultsShowing papers similar to Study on PET Recovery from Polymeric Mixtures, Using the Floatation Technique, and Valorization of the Collected Particles by Dyeing Them
ClearTribo-Electrostatic Separation Analysis of a Beneficial Solution in the Recycling of Mixed Poly(Ethylene Terephthalate) and High-Density Polyethylene
Researchers optimized an electrostatic separation process for sorting PET and HDPE plastic particles, testing how different parameters affect separation efficiency for recycling. Improving plastic sorting technology is key to increasing recycling rates and reducing the amount of plastic waste that ultimately degrades into environmental microplastics.
Size and Shape Distribution of Microplastics in PET Recycled Wastewater and Their Removal Behavior during the Coagulation–Flocculation Process
Researchers investigated the size and shape distribution of microplastics in wastewater from a PET recycling facility and evaluated removal efficiency through coagulation-flocculation, finding that fragment-shaped and medium-sized particles were most abundant and most effectively removed. The study demonstrates that coagulation-flocculation is a strong candidate for controlling microplastic release from plastic recycling facilities.
From Waste to Value: Advances in Recycling Textile-Based PET Fabrics
This review examines recent advances in recycling polyethylene terephthalate (PET) textile fabrics, with a focus on fiber-to-fiber regeneration as a path toward circular textile production. Researchers found that chemical depolymerization methods show particular promise for recovering high-purity monomers suitable for making new textile-grade PET, potentially reducing textile waste that contributes to microplastic pollution.
Separation of plastic mixtures by sink-float combined with froth flotation
Researchers separated a six-component post-consumer plastic mixture (PS, PMMA, PVC, PET) by combining sink-float density separation with froth flotation, demonstrating that the hybrid method achieved cleaner separation of overlapping-density polymers than either technique alone.
A focused review on recycling and hydrolysis techniques of polyethylene terephthalate
This review examines techniques for recycling polyethylene terephthalate (PET), one of the most common plastics found as microplastic pollution. Chemical recycling through hydrolysis shows the most promise for breaking PET back into its original building blocks for reuse. Improving PET recycling is important because reducing plastic waste at the source is one of the most effective ways to decrease microplastic contamination in the environment.
Progress of Recycled Polyester in Rheological Performance in Molding, and Economic Analysis of Recycled Fibers in Fashion and Textile Industry
This review examined the recycling performance of polyester fibers and assessed the economic viability of recycled polyester in the fashion and textile industry. Recycled polyester from PET bottles and textile waste showed acceptable rheological properties for fiber production. Expanding recycled polyester use in fashion reduces the need for virgin plastic and addresses the textile industry's substantial microplastic pollution footprint.
Optimising microplastic polyethylene terephthalate fibre extraction from sediments: Tailoring a density-separation procedure for enhanced recovery and reliability
Researchers optimized a density-separation method for extracting polyethylene terephthalate (PET) microplastic fibers from sediment samples using sodium polytungstate solution. They systematically tested variables like solution density, settling time, and agitation to achieve reliable and reproducible extraction rates. The study provides a standardized protocol that could help make microplastic measurements across different research groups more consistent and comparable.
Surface Reactions in Selective Modification: The Prerequisite for Plastic Flotation
This review examines the surface chemistry modifications used in plastic flotation separation, a process that selectively separates mixed plastic waste streams for recycling by exploiting differences in surface hydrophilicity. Improving plastic recycling efficiency through better sorting technology reduces the amount of plastic waste that ultimately degrades into environmental microplastics.
Insights into Mechanism of Hypochlorite-Induced Functionalization of Polymers toward Separating BFR-Containing Components from Microplastics
This study found that treating polymer surfaces with hypochlorite (bleach) modifies their chemistry in ways that enable a flotation technique to separate microplastics by type for recycling. The approach could help sort mixed plastic waste more efficiently, potentially reducing the volume of plastic entering the environment.
TextileRecycling’s Hidden Problem: Surface-ModifiedFiber Fragments Emitted at Every Stage
Researchers investigated microplastic fiber (MPF) release during chemical recycling of polyester/cotton-blended textiles, finding that the dye removal stage emitted the highest MPF count at nearly 10,055 MPFs per gram, while alkaline hydrolysis reduced MPF release by 87.55% compared to acid hydrolysis during the treatment stage.
TextileRecycling’s Hidden Problem: Surface-ModifiedFiber Fragments Emitted at Every Stage
Researchers investigated microplastic fiber (MPF) release during chemical recycling of polyester/cotton-blended textiles, finding that the dye removal stage emitted the highest MPF count at nearly 10,055 MPFs per gram, while alkaline hydrolysis reduced MPF release by 87.55% compared to acid hydrolysis during the treatment stage.
TextileRecycling’s Hidden Problem: Surface-ModifiedFiber Fragments Emitted at Every Stage
Researchers investigated microplastic fiber (MPF) release during chemical recycling of polyester/cotton-blended textiles, finding that the dye removal stage emitted the highest MPF count at nearly 10,055 MPFs per gram, while alkaline hydrolysis reduced MPF release by 87.55% compared to acid hydrolysis during the treatment stage.
The Use of Polymers in the Flotation Treatment of Wastewater
This review covers how polymers (polyelectrolytes) are used in flotation-based wastewater treatment to remove suspended solids and organic matter. The findings are relevant to how plastics interact with water treatment processes.
Is froth flotation a potential scheme for microplastics removal? Analysis on flotation kinetics and surface characteristics
This study evaluated froth flotation as a method for removing microplastics from water, finding that surface hydrophobicity governs flotation efficiency and that the technique shows promise as a scalable treatment option for certain polymer types.
Stepwise flotation separation of WEEE plastics by polymeric aluminum chloride towards source control of microplastics
Researchers developed a stepwise flotation separation process using polymeric aluminum chloride to sort and recover mixed plastics from waste electrical and electronic equipment (WEEE), demonstrating improved separation efficiency and positioning the approach as a strategy to reduce microplastic pollution from e-waste mismanagement.
Thermomechanical recycling of post-consumer poly(ethylene terephthalate) bottles and post-industrial polyamide 6 fishing nets reinforced with organo- modified montmorillonite
Not directly relevant to microplastic pollution research. This study examines blending recycled PET bottles with recycled fishing-net nylon to make stronger composite materials—a plastics recycling and materials science study rather than one focused on microplastic environmental or health impacts.
A clean and efficient flotation towards recovery of hazardous polyvinyl chloride and polycarbonate microplastics through selective aluminum coating: Process, mechanism, and optimization
Polyvinyl chloride (PVC) and polycarbonate (PC) microplastics are hazardous due to their chemical content but are difficult to separate for recycling. Researchers developed a flotation method using aluminum coating that cleanly separates these two plastic types.
Polymers Recycling: Upcycling Techniques. an Overview
This paper is not about microplastics in a research sense; it is an overview of polymer recycling and upcycling techniques, mentioning microplastic accumulation briefly as motivation but not investigating microplastics directly.
Processing System for Plastic Bottle to Obtain Polyethylene Terephthalate Filament in 3D Printers
Researchers developed a processing system to convert waste PET plastic bottles into filament suitable for 3D printers, addressing low plastic recycling rates in Peru and offering a practical approach to reducing PET contamination in terrestrial, marine, and climatic ecosystems.
Novel Treatment to Immobilize and Use Textiles Microfibers Retained in Polymeric Filters through Their Incorporation in Composite Materials
Researchers developed a novel method to immobilize textile microfibers captured in polymeric washing machine filters by incorporating them into composite polymer matrices, transforming a waste microplastic stream into a potentially reusable construction or industrial material rather than releasing it to the environment.
Rare Earth Elements Recovery from Primary and Secondary Resources Using Flotation: A Systematic Review
This systematic review examined flotation methods for recovering rare earth elements from both primary mineral sources and secondary recycling streams, finding that collector chemistry and particle surface modification are critical to separation efficiency. While not about microplastics, the research addresses sustainable resource recovery and reducing mining waste that can contribute to environmental contamination.
Removal of microplastics from wastewater through electrocoagulation-electroflotation and membrane filtration processes
Researchers investigated electrocoagulation-electroflotation and membrane filtration for removing microplastics from wastewater, finding that combining these processes effectively recovers microplastic particles from treatment plant effluent.
High-Value Oil–Water Separation Materials Prepared from Waste Polyethylene Terephthalate
Not relevant to microplastics — this paper describes a method for recycling waste PET plastic into a hydrophobic coating for stainless steel mesh, producing an oil-water separation material with high separation efficiency as a way to repurpose plastic waste.
Performances of Polyethylene Terephthalate Plastic Bottles Waste as Supporting Media in Domestic Wastewater Treatment Using Aerobic Fixed-Film System
Not a microplastics paper — this study repurposes shredded PET plastic bottles as a structural support media (not as a pollutant) inside a wastewater treatment system, finding it effectively removes organic matter and nutrients from domestic wastewater.