Medio ambiente
Medio ambiente
Can toothpaste tubes be recycled across the US? It's getting closer
14/04/2024
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Toothpaste tubes and other squeezable plastic containers are getting closer to being more sustainable in the U.S. Some 90% of toothpaste tubes on the market are now made in a way that makes them...
Researchers study effects of solvation and ion valency on metallopolymers
14/04/2024
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In a new paper published in JACS Au, researchers at the University of Illinois Urbana-Champaign analyzed the effects of solvation and ion valency on metallopolymers, with implications for critical...
Keeping power in the cycle: Tests confirm quality of purified graphite from used lithium-ion batteries
08/04/2024
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Lithium-ion batteries have become an integral part of everyday life. The number of used batteries is correspondingly high. They contain considerable amounts of important raw materials such as...
Paving new paths for sustainable construction
28/03/2024
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The construction sector today faces several challenges. Natural sand is fast becoming a scarce resource—we might run out of it by 2050. Carbon dioxide emissions, especially from manufacturing...
Sweden aims to boost plastic recycling with giant plant
27/03/2024
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Discarded crisp bags, ketchup bottles and Tupperware containers speed along conveyer belts at a massive high-tech sorting plant dubbed "Site Zero", which Sweden hopes will revolutionize its...
New concrete possibilities from waste materials
26/03/2024
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The use of recycled concrete and glass aggregates in concrete production has emerged as a highly promising means of increasing the recycling rate of waste materials—but durability issues have...
Electrochemistry helps clean up electronic waste recycling, precious metal mining
26/03/2024
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A new method safely extracts valuable metals locked up in discarded electronics and low-grade ore using dramatically less energy and fewer chemical materials than current methods, report University...
Major environmental benefits of recycling gold with biodiesel
24/03/2024
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Researchers at Chalmers University of Technology in Sweden have developed an environmentally friendly method for recycling and purifying metals. Using gold earrings from a pawnshop in Gothenburg and...
Research unlocks potential to revolutionize construction waste recycling
21/03/2024
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There was no time to waste as researchers trawled through skip bins across Melbourne construction sites, capturing hundreds of photos of materials destined for landfill.
UN says e-waste from trashed electric devices is piling up and recycling isn't keeping pace
20/03/2024
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U.N. agencies have warned that electrical and electronic waste is piling up worldwide while recycling rates remain low and are likely to fall even further.
Why recycling plastic is not a quick fix
10/03/2024
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Considering the climate crisis and worldwide plastic pollution, many people believe that recycling materials, in particular plastic, is the solution to our problems. Recycling can reduce resource...
A bright idea for recycling rare-earth phosphors from used fluorescent bulbs
03/03/2024
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Recycling facilities collect glass and mercury from thrown-away fluorescent bulbs, but discarded lighting could also supply rare-earth metals for reuse. The 17 metals referred to as rare earths...
Recycling research finds new process to transform glass fiber-reinforced plastic into silicon carbide
29/02/2024
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Glass fiber-reinforced plastic (GFRP), a strong and durable composite material, is widely used in everything from aircraft parts to windmill blades. Yet the very qualities that make it robust enough...
Prospects for battery recycling in Latin America
28/02/2024
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Reuse and recycling are core elements of a sustainable approach to used lithium-ion batteries in Latin America. This is essential to conserve valuable resources and avoid climate-damaging greenhouse...
Plastic recycling: Peptide with a cobalt complex oxidizes polystyrene microparticles
20/02/2024
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Polystyrene is a widespread plastic that is essentially not recyclable when mixed with other materials and is not biodegradable. In the journal Angewandte Chemie, a German research team has...
New research reveals mechanisms of stiffening in paper pulp, could lead to improved recyclability
14/02/2024
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One of the problems with paper recycling is that the fibers stiffen during the dewatering and drying processes, also known as hornification. The same thing happens to dishcloths, for example; they...
New position paper on transparent life cycle assessment of plastics recycling
07/02/2024
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Life cycle assessments are often used as a basis for decision-making when selecting environmentally friendly processes, input materials or services for plastics recycling. But what does a comparable...
Researchers reveal elusive bottleneck holding back global effort to convert carbon dioxide waste into usable products
07/02/2024
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Think of it as recycling on the nanoscale: a tantalizing electrochemical process that can harvest carbon before it becomes air pollution and restructure it into the components of everyday products.
Why recycling alone can’t power climate tech
01/02/2024
Intensifying the production of high-value compounds from industrial waste
01/02/2024
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A study by the Center for Integrated Technology and Organic Synthesis (CiTOS) demonstrates how glycerol carbonate, a biosourced industrial additive, can be produced in record time using CO2 and a...