Biodegradation of polyethylene and polystyrene: From microbial deterioration to enzyme discovery DOI Creative Commons
Yan Zhang, Jacob Nedergaard Pedersen, Bekir Engin Eser

и другие.

Biotechnology Advances, Год журнала: 2022, Номер 60, С. 107991 - 107991

Опубликована: Май 31, 2022

The global production of plastics has continuously been soaring over the last decades due to their extensive use in our daily life and industries. Although synthetic offer great advantages from packaging construction electronics, low biodegradability induce serious plastic pollution that damage environment, human health make irreversible changes ecological cycle. In particular, containing only carbon-carbon (C-C) backbone are less susceptible degradation lack hydrolysable groups. representative polyethylene (PE) polystyrene (PS) account for about 40% total production. Various chemical biological processes with potential have developed recycle reuse, but biodegradation seems be most attractive eco-friendly method combat this growing environmental problem. review, we first summarize current advances PE PS biodegradation, including isolation microbes degrading enzymes different sources. Next, state-of-the-art techniques used evaluating monitoring degradation, scientific toolboxes enzyme discovery as well challenges strategies intensively discussed. return, it inspires a further technological exploration expanding diversity species enzymes, disclosing essential pathways developing new approaches utilize waste feedstock recycling upcycling.

Язык: Английский

Catalytic pyrolysis of plastic wastes in a continuous microwave assisted pyrolysis system for fuel production DOI
Nan Zhou, Leilei Dai, Yuancai Lv

и другие.

Chemical Engineering Journal, Год журнала: 2021, Номер 418, С. 129412 - 129412

Опубликована: Март 20, 2021

Язык: Английский

Процитировано

227

From plastic waste to wealth using chemical recycling: A review DOI
Jie Jiang, Ke Shi, Xiangnan Zhang

и другие.

Journal of environmental chemical engineering, Год журнала: 2021, Номер 10(1), С. 106867 - 106867

Опубликована: Ноя. 27, 2021

Язык: Английский

Процитировано

218

Recent Progress in the Chemical Upcycling of Plastic Wastes DOI
Xi Chen, Yudi Wang, Lei Zhang

и другие.

ChemSusChem, Год журнала: 2021, Номер 14(19), С. 4137 - 4151

Опубликована: Май 18, 2021

The massive generation of plastic wastes without satisfactory treatment has induced severe environmental problems and gained increasing attentions. In this Minireview, recent progresses in the chemical upcycling by using various methods (mainly past three to five years) is summarized. points out a "plastic-based refinery" concept, which use as platform feedstocks produce highly valuable monomeric or oligomeric compounds, putting back into circular economy. different upcycle wastes, including hydrogenolysis, photocatalysis, pyrolysis, solvolysis, others, are introduced each section valorize diverse value-added chemicals, materials, fuels. addition, other emerging technologies well new thermosets covered.

Язык: Английский

Процитировано

214

Hydrogenolysis of Polypropylene and Mixed Polyolefin Plastic Waste over Ru/C to Produce Liquid Alkanes DOI
Julie E. Rorrer,

Clara Troyano-Valls,

Gregg T. Beckham

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2021, Номер 9(35), С. 11661 - 11666

Опубликована: Июль 27, 2021

Catalytic depolymerization of polyolefins is a promising chemical recycling strategy to create value-added products from waste plastics, which are accumulating in landfills and the natural environment at unsustainable rates. The cleavage strong C–C bonds can be performed using noble metal hydrogen via hydrogenolysis mechanism. Previously, we identified ruthenium nanoparticles supported on carbon (Ru/C) as highly active heterogeneous catalyst for conversion polyethylene into liquid gaseous n-alkanes under mild conditions. In present study, investigated catalytic polypropylene (PP) conditions (200–250 °C, 20–50 bar H2). We demonstrate that Ru/C produces C5–C32 iso-alkane yields above 68% absence solvent identify trade-offs between product yield temperature, pressure, reaction time. apply rigorous analytical method quantify all alkane products. characterized was found recyclable after complete high molecular weight PP (Mw ∼ 340,000 Da) hydrocarbons postconsumer centrifuge tube. Further, shown effective depolymerizing mixture high-density produce linear branched alkanes, demonstrating feasibility streams mixed polyolefin waste.

Язык: Английский

Процитировано

207

Biodegradation of polyethylene and polystyrene: From microbial deterioration to enzyme discovery DOI Creative Commons
Yan Zhang, Jacob Nedergaard Pedersen, Bekir Engin Eser

и другие.

Biotechnology Advances, Год журнала: 2022, Номер 60, С. 107991 - 107991

Опубликована: Май 31, 2022

The global production of plastics has continuously been soaring over the last decades due to their extensive use in our daily life and industries. Although synthetic offer great advantages from packaging construction electronics, low biodegradability induce serious plastic pollution that damage environment, human health make irreversible changes ecological cycle. In particular, containing only carbon-carbon (C-C) backbone are less susceptible degradation lack hydrolysable groups. representative polyethylene (PE) polystyrene (PS) account for about 40% total production. Various chemical biological processes with potential have developed recycle reuse, but biodegradation seems be most attractive eco-friendly method combat this growing environmental problem. review, we first summarize current advances PE PS biodegradation, including isolation microbes degrading enzymes different sources. Next, state-of-the-art techniques used evaluating monitoring degradation, scientific toolboxes enzyme discovery as well challenges strategies intensively discussed. return, it inspires a further technological exploration expanding diversity species enzymes, disclosing essential pathways developing new approaches utilize waste feedstock recycling upcycling.

Язык: Английский

Процитировано

192