Bioleaching/enzyme-based recycling of aluminium and polyethylene from beverage cartons packaging waste

Kremser, Klemens; Gerl, Patrick; Borrás, Adolfo Benedito; Espinosa, Daniela Ramírez; Martínez, Belén Monje; Guebitz, Georg M.; Pellis, Alessandro

doi:10.1016/j.resconrec.2022.106444

Cited by 17 publications

(5 citation statements)

References 42 publications

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“…The constant discovery and engineering of microbes and enzymes that can selectively degrade certain types of polymers will enable more effective recycling of dirty mixed plastic waste fractions that currently are incinerated or go to landfill. An excellent example is the interesting coupled bioleaching/enzyme-based process for the recycling of multilayer packaging that was recently developed by Kremser and colleagues [159]. The study successfully demonstrated an innovative method to recover pure PE and aluminum hydroxide from beverage cartons.…”

Section: Future Perspectives and Conclusionmentioning

confidence: 99%

Critical Review on the Progress of Plastic Bioupcycling Technology as a Potential Solution for Sustainable Plastic Waste Management

Lomwongsopon

Varrone

2022

Polymers

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Plastic production worldwide has doubled in the last two decades and is expected to reach a four-fold increase by 2050. The durability of plastic makes them a perfect material for many applications, but it is also a key limitation to their end-of-life management. The current plastic lifecycle is far from circular, with only 13% being collected for recycling and 9% being successfully recycled, indicating the failure of current recycling technology. The remaining plastic waste streams are thus incinerated, landfilled, or worse, mismanaged, leading to them leaking into the environment. To promote plastic circularity, keeping material in the loop is a priority and represents a more sustainable solution. This can be achieved through the reuse of plastic items, or by using plastic waste as a resource for new materials, instead of discarding them as waste. As the discovery of plastic-degrading/utilizing microorganisms and enzymes has been extensively reported recently, the possibility of developing biological plastic upcycling processes is opening up. An increasing amount of studies have investigated the use of plastic as a carbon source for biotechnological processes to produce high-value compounds such as bioplastics, biochemicals, and biosurfactants. In the current review, the advancements in fossil-based plastic bio- and thermochemical upcycling technologies are presented and critically discussed. In particular, we highlight the developed (bio)depolymerization coupled with bioconversion/fermentation processes to obtain industrially valuable products. This review is expected to contribute to the future development and scale-up of effective plastic bioupcycling processes that can act as a drive to increase waste removal from the environment and valorize post-consumer plastic streams, thus accelerating the implementation of a circular (plastic) economy.

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Section: Future Perspectives and Conclusionmentioning

confidence: 99%

Critical Review on the Progress of Plastic Bioupcycling Technology as a Potential Solution for Sustainable Plastic Waste Management

Lomwongsopon

Varrone

2022

Polymers

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“…Thus, it is still considered a nonrecyclable material . To increase the recycling rate of the post-customer APL waste, various strategies have been invented, such as chemical and thermal delamination , and enzymatic bioleaching . Still, a significant portion of APL waste is discarded in landfills or treated by incineration, with adverse effects such as soil infertility, air pollution, and greenhouse gas emission, , and causes threats to the natural environment, wildlife, and ultimately to human beings.…”

Section: Introductionmentioning

confidence: 99%

Passive Daytime Cooling Foils for Everyone: A Scalable Lamination Process Based on Upcycling Aluminum-Coated Chips Bags

Song

Retsch

2023

ACS Sustainable Chem. Eng.

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The increasing energy demand for space cooling and environmental pollution caused by post-consumer plastic waste are two of the most challenging issues today. Passive daytime cooling, which dissipates heat to outer space without external energy input, has emerged recently as a sustainable technique for space cooling. In this work, a plastic waste-based passive daytime cooling foil is reported to alleviate both issues simultaneously. The mirror-like aluminum-plastic laminate (APL) waste exhibits a satisfactory solar reflectance of 85.7%. Combining the APL waste with a laminated pouch foil reveals a remarkably simple but effective plastic waste-based cooling foil with a high emissivity of 0.87 in the atmospheric window, resulting in a compelling daytime cooling performance. The sustainable aluminum-plastic laminate waste-based cooling foil is flexible, easily scalable, low-cost, and fabricated with a common laminator. This makes the fabrication of passive cooling materials possible even for nonexperts, which will help to provide advanced sun shelters and comfortable temperatures to a wider community.

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“…For instance, thermal delamination [ 7 ] and enzymatic bioleaching recycling methods. [ 8 ] Despite the progress in material and energy extraction from APL, it is still considered unrecyclable due to its low recycling efficiency. The European plastic strategy aims for all used packaging to be recyclable or reusable by 2030.…”

Section: Introductionmentioning

confidence: 99%

Upcycling Chips‐Bags for Passive Daytime Cooling

Song

Tran

Herrmann

et al. 2023

Adv Materials Technologies

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Plastic pollution has caused numerous environmental issues in recent decades. As one of the most commonly used packaging materials, aluminum‐plastic laminates (APL) are particularly challenging for recycling purposes due to their sophisticated materials components. This work reveals a new strategy to upcycle such post‐consumer APL packaging waste, e.g., chips‐bags, for passive daytime cooling applications. This opens an attractive route to reuse APLs while at the same time reducing global energy consumption and carbon emissions. The mirror‐like appearance of the APLs possesses a strong solar reflection, up to 86%. By coating, this reflective layer of the APL waste with a high emissive polydimethylsiloxane layer, a simple but effective passive daytime cooling foil is constructed, which shows promising passive cooling performance theoretically and practically. More importantly, the passive cooling foil based on APL waste is flexible and can be applied to any target object, protecting it from harsh sunlight. The low‐cost APL waste‐based passive cooling foil proposed in this work will significantly contribute to both energy and environmental issues that humans face today.

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Bioleaching/enzyme-based recycling of aluminium and polyethylene from beverage cartons packaging waste

Cited by 17 publications

References 42 publications

Critical Review on the Progress of Plastic Bioupcycling Technology as a Potential Solution for Sustainable Plastic Waste Management

Critical Review on the Progress of Plastic Bioupcycling Technology as a Potential Solution for Sustainable Plastic Waste Management

Passive Daytime Cooling Foils for Everyone: A Scalable Lamination Process Based on Upcycling Aluminum-Coated Chips Bags

Upcycling Chips‐Bags for Passive Daytime Cooling

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