Efficient Plastic Waste Recycling to Value‐Added Products by Integrated Biomass Processing

Beydoun, Kassem; Klankermayer, Jürgen

doi:10.1002/cssc.201902880

Cited by 57 publications

(28 citation statements)

References 39 publications

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“…In addition, a consecutive degradation approach of PLA and poly(oxymethylene) ( 10 ) was investigated in accordance to Klankermayer and co‐worker (Scheme ) . In this regard, end‐of‐life PLA is converted to 2 , which is required for the degradation of 10 to produce a cyclic acetal, which can be useful chemical, e. g. as monomer for new polymers …”

Section: Methodsmentioning

confidence: 99%

Ruthenium‐Catalyzed Hydrogenative Degradation of End‐of‐Life Poly(lactide) to Produce 1,2‐Propanediol as Platform Chemical

et al. 2020

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The chemical recycling of end‐of‐life polymers can add some value to a future circular economy. In this regard, the hydrogenative degradation of end‐of‐life PLA was investigated to produce 1,2‐propanediol as product, which is a useful building block in polymer chemistry. In more detail, the commercially available Ru‐MACHO‐BH complex was applied as catalyst to degrade end‐of‐life PLA efficiently to 1,2‐propanediol under mild conditions. After investigations of the reaction conditions a set of end‐of‐life PLA goods were subjected to degradation.

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Section: Methodsmentioning

confidence: 99%

Ruthenium‐Catalyzed Hydrogenative Degradation of End‐of‐Life Poly(lactide) to Produce 1,2‐Propanediol as Platform Chemical

et al. 2020

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“…The upcycling of PE into long-chain alkyl aromatics ready to be sulfonated to make surfactants was reported [23]. Others described the synthesis of intermediary cyclic acetals, which are useful as solvents, fuel additives or monomers for polymers [24]. The greatest challenge is the chemical recycling of commingled plastic waste, as even small amounts of the various polymer contaminants may change the properties of the end-product.…”

Section: Chemical and Mechanical Plastic Waste Recyclingmentioning

confidence: 99%

MIXed Plastics Biodegradation and UPcycling Using Microbial Communities: The EU Horizon 2020 Project MIX-UP

Ballerstedt

Tiso

Wierckx

et al. 2021

Preprint

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This article introduces the EU Horizon 2020 research project MIX-UP, “Mixed plastics biodegradation and upcycling using microbial communities”. The project focuses on the ambitious vision to change the traditional linear value chain of plastics to a sustainable, biodegradable based one. In MIX-UP, plastic mixtures containing five of the top six fossil-based recalcitrant plastics (PE, PUR, PP, PET, and PS), along with upcoming biobased and biodegradable plastics (bioplastics) such as PHA and PLA, will be used as feedstock for microbial transformations. The generated new workflow increases recycling quotas and adds value to present poorly recycled plastic waste streams. Consecutive controlled enzymatic and microbial degradation of mechanically pre-treated plastics waste combined with subsequent microbial conversion to polymers and value-added chemicals by mixed cultures. Through optimization of known plastic-degrading enzymes by integrated protein engineering, high specific binding capacities, stability, and catalytic efficacy towards a broad spectrum of plastic polymers under high salt content and temperature conditions will be achieved. Another focus lies in the search and isolation of novel enzymes active on recalcitrant polymers. MIX-UP will also enhance the production of enzymes and formulate enzyme cocktails tailored to specific waste streams. In vivo and in vitro application of these cocktails enables stable, self-sustaining microbiomes to convert the released plastic monomers selectively into value-added products, key building blocks, and biomass. Any of the remaining material recalcitrant to the enzymatic activity will be recirculated into the process by physicochemical treatment. The Chinese-European MIX-UP is a multidisciplinary and industry-participating consortium to address the market need for novel sustainable routes to valorize plastic waste streams. MIX-UP realizes a circular (bio) plastic economy and will contribute where mechanical and chemical plastic recycling show limits.

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“…Therefore, CE translates into an integrated systemic process of the reduction, reuse, recovery, and recycling of materials and energy. Its objective is to achieve closure of the cycle in all phases of the value chain; that is, product design and services; production; distribution; maximization of the useful life of the product; and revitalization of networks of resumption, reuse, remanufacturing, or recycling [58,59].…”

Section: Literature Reviewmentioning

confidence: 99%

Effects of Circular Economy Policies on the Environment and Sustainable Growth: Worldwide Research

et al. 2020

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The challenge of transitioning from a linear to a circular economy model is still ongoing and requires the development and application of new knowledge, leading to innovative, technological, and sustainable processes, products, and services. The evolution of global research on this topic from 2004 to 2019 was studied in this work. For this purpose, a bibliometric analysis of 1366 articles was applied, producing results on the scientific productivity of the driving agents that most contribute to this theme. The findings show a growing interest, especially in the last four years, in the study of circular economy (CE) policies on the environment. The main subject area that articles address is environmental science. Five research lines have been identified, which mainly study the efficient management of energy resources and the economic factors that make the CE model possible: Environmental pollution and agricultural activity; waste management to avoid a negative environmental impact; improvement of the environmental impact through ecological products; the product life cycle, and the consequences of climate change. The implementation of CE policies will contribute to making economies less dependent and unprotected and more competitive. Global research has exhibited an upward trend during the period analyzed and has grown exponentially since 2015, coinciding with the publication of the Sustainable Development Goals (SDGs) of the 2030 Agenda.

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Efficient Plastic Waste Recycling to Value‐Added Products by Integrated Biomass Processing

Cited by 57 publications

References 39 publications

Ruthenium‐Catalyzed Hydrogenative Degradation of End‐of‐Life Poly(lactide) to Produce 1,2‐Propanediol as Platform Chemical

Ruthenium‐Catalyzed Hydrogenative Degradation of End‐of‐Life Poly(lactide) to Produce 1,2‐Propanediol as Platform Chemical

MIXed Plastics Biodegradation and UPcycling Using Microbial Communities: The EU Horizon 2020 Project MIX-UP

Effects of Circular Economy Policies on the Environment and Sustainable Growth: Worldwide Research

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