The Bottle Consortium included scientists from the US Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) and the University of Portsmouth. They found that the use of enzymes was a more sustainable approach to recycling polyethylene terephthalate (PET).
Analysis shows that enzymatically recycled PET has the potential to improve over a wide range of energy, carbon and socio-economic impacts over traditional fossil-based PET manufacturing methods.
Further development of this concept and its large-scale implementation can lead to new opportunities for PET recycling and create mechanisms for recycling fibers and other materials made from previously unrecycled PET. .. PET is one of the most abundantly produced synthetic polymers in the world, producing 82 million metric tons annually. Approximately 54% of PET is used in the production of textiles for clothing and carpets.
“Of all plastics manufactured since the 1950s, less than 10% are recycled,” said Avantika Singh, NREL’s chemical engineer and first author of a new treatise outlining the path to enzyme-based recycling. Says. “Most waste plastic is eventually landfilled.”
This treatise is published in the journal Joule.
BOTTLE is a two innovative approach to plastic pollution: developing energy-efficient, cost-effective, scalable recycling and upcycling technologies and designing the latest plastics to be recyclable by design. We strive to address the issue of.
A new study addresses the issue of plastic recyclability. Images of discarded bottles floating in the ocean and other waterways visually remind us of the problems caused by plastic waste, but what to do with PET used to make textiles for clothing and carpets. I don’t see many problems.
Researchers have modeled a conceptual recycling facility that captures a fraction of the 3 million metric tonnes of PET consumed annually in the United States. The enzyme recycling process breaks down PET into two components: terephthalic acid (TPA) and ethylene glycol. Compared to traditional fossil-based production routes, the research team has reduced total supply chain energy use by 69-83% and greenhouse gas emissions by 17-43 per kilogram of TPA through an enzyme recycling process. We have decided that we can reduce it by%. In addition, an economic comparison of virgin TPA and recycled TPA in the United States shows that the environmental and socio-economic impacts of the two processes are not evenly distributed throughout the supply chain. The proposed recycling process can reduce environmental impact by up to 95% while generating up to 45% more socio-economic benefits, including local work at materials recovery facilities.
This study also predicts that enzymatic PET recycling can achieve the same cost as the production of virgin PET, thus in addition to enabling the recycling of waste PET-rich raw materials such as clothing and carpets. It emphasizes the potential of this enzyme technology to decarbonize PET production. ..
“It’s one of the biggest opportunities,” Shin said. “If we could capture that space (textiles, carpet fibers, and other PET waste plastics that aren’t currently recycled), it could be a true game changer.”
This study was funded by DOE’s Advanced Manufacturing Office and Bioenergy Technology Office. This work was done as part of a bio-optimization technique to keep thermoplastics away from landfills and the BOTTLE consortium.
NREL is the US Department of Energy’s leading national laboratory for research and development of renewable energy and energy efficiency.
Fiber2Fashion News Desk (SV)
Scientists who are part of biooptimization technology to keep thermoplastics away from landfills and the environment (BOTTLE) consortium have found that recycling enzyme-based plastics is more energy efficient and environmentally friendly. .. They used enzymes to recycle PET, a common plastic for disposable beverage bottles, clothing and food packaging.
The US Bottle Consortium believes that enzyme-based plastic recycling is excellent
Source link The US Bottle Consortium believes that enzyme-based plastic recycling is excellent