Exploring the Potential of Hydrothermal Treatment for Microplastics Removal in Digestate DOI Creative Commons
Ifunanya R. Akaniro, Ruilong Zhang,

Christina H. M. Tsang

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 11, 2024

Language: Английский

Hydrothermal pre-treatments can make PLA and PBS bioplastics suitable for anaerobic digestion DOI Creative Commons
Roberta Ferrentino, Filippo Marchelli, Antonio Bevilacqua

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116204 - 116204

Published: March 1, 2025

Language: Английский

Citations

1
Abiotic degradation and accelerated ageing of microplastics from biodegradable and recycled materials in artificial seawater DOI Creative Commons

Leonardo Barlucchi,

Greta Biale, Jacopo La Nasa

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176832 - 176832

Published: Oct. 9, 2024

Microplastics (MPs) are considered one of the most widespread pollutants in all ecosystems worldwide. In environment, MPs can undergo hydrolysis and/or oxidation, resulting release low-molecular weight degradation products, along with additives, and adsorbed organic pollutants. this study, morphological, chemical, thermal changes microplastics obtained from two biodegradable plastics, polylactic acid Mater-Bi®, a recycled plastic, recycled-polyethylene terephthalate, were examined after accelerated ageing under photo-oxidative conditions synthetic seawater Solarbox system, treatment dark. Thermal properties studied by thermogravimetric analysis, differential scanning calorimetry, evolved gas analysis-mass spectrometry. Compositions chemical components polymers evaluated attenuated total reflection-Fourier transform infrared spectroscopy pyrolysis-gas chromatography-mass The leachable fractions products released degraded characterized This study allowed us to identify as main pathway characterize not only oligomers water consequence degradation, but also additives used plastic item formulations. improves our understanding these polymers' behavior conditions.

Language: Английский

Citations

4
Highly efficient valorization of waste polylactic acid for alkyl lactate production by dispersions of ultrasmall ZnO nanoparticles DOI

Yu-Hang Gu,

Ling‐Xia Yun,

Tianbao Chen

et al.

Applied Catalysis A General, Journal Year: 2025, Volume and Issue: unknown, P. 120092 - 120092

Published: Jan. 1, 2025

Language: Английский

Citations

0
Primary Sludges Drive the Scalability and Power Production of Hydrothermal Liquefaction for Energy Resource Recovery at Wastewater Treatment Facilities DOI Creative Commons
Carl Abadam,

Armando N. Espino,

Kevin Fisher

et al.

ACS Sustainable Resource Management, Journal Year: 2025, Volume and Issue: 2(2), P. 275 - 283

Published: Jan. 15, 2025

This research assesses the impact of wastewater sludges from different treatment stages and facility scales on biocrude power potential hydrothermal liquefaction (HTL). HTL offers a promising method for energy resource recovery through production, yet its viability smaller facilities [<1 million gallons per day (MGD)] remains uncertain. Sludges varying (0.8, 13, 76 MGD) were analyzed. We found that stage influences content chemical composition more than scale. experiments showed primary (PS) yield waste-activated (WAS); however, carbon fractionation remained similar across scales. The generated by PS converted to was 1.05-1.55 times higher if it methane. Meanwhile, WAS resulted in lower generation At small plants where is not incorporated, an ideal technology, instead other waste-management solutions might be better explored. study emphasizes applying only at can truly viable matching or exceeding consumption evaluating context practical parameters, e.g., flow, sludge density, realistic conversion technologies.

Language: Английский

Citations

0
Food Contact Compatibility of Bioplastic Materials Filled With Degradable Additives for Repeated‐Use Food Applications DOI Creative Commons
Emanuela Drago, Cristina Moliner, Alberto Lagazzo

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

ABSTRACT The packaging sector is the primary contributor to plastic waste due prevalence of disposable packaging. Although there extensive literature on sustainable single‐use packaging, studies reusable biomaterials and their compliance with food contact regulations remain scarce. This study aimed investigate physicochemical properties polylactic acid‐based bioplastics reinforced various degradable additives, glass fibers, calcium carbonates, designed for repeated‐use applications such as cutlery rigid crates. All samples were tested overall specific migration in accordance European Union regulations, material analyzed. results demonstrated that materials provided values below limits, although some instabilities did not provide them full compliance. In terms mechanical performance, exhibited a deterioration after simulants, limiting potential repeated use. contrast, crates high resistance degradation, maintaining over time.

Language: Английский

Citations

0
The growing problem of waste bioplastics disposal, and a way to tackle it DOI Creative Commons
Filippo Marchelli, Luca Fiori

Waste Management, Journal Year: 2025, Volume and Issue: 201, P. 114786 - 114786

Published: April 11, 2025

Language: Английский

Citations

0
The strategic role of a mild hydrothermal pretreatment in enhancing anaerobic degradation of commercial bio-based compostable plastics associated to food waste DOI

S. Angelini,

Agata Gallipoli, Daniele Montecchio

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 381, P. 125332 - 125332

Published: April 13, 2025

Language: Английский

Citations

0
Cellulose Acetates in Hydrothermal Carbonization: a Green Pathway to Valorize Residual Bioplastics DOI Creative Commons
Giulia Ischia, Filippo Marchelli, Nicola Bazzanella

et al.

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

Bioplastics possess the potential to foster a sustainable circular plastic economy, but their end-of-life is still challenging. To sustainably overcome this problem, work proposes hydrothermal carbonization (HTC) of residual bioplastics as an alternative green path. The focus on cellulose acetate - bioplastic used for eyewear, cigarette filters and other applications showing proof concept chemistry behind conversion, including reaction kinetics model. HTC pure commercial acetates was assessed under various operating conditions (180-250 °C 0-6 h), with analyses solid liquid products. Results show peculiar behavior these substrates HTC. At 190-210 °C, materials almost completely dissolve into phase, forming 5-hydroxymethylfurfural organic acids. Above 220 intermediates repolymerize carbon-rich microspheres (secondary char), achieving yields up 23 %, while itaconic citric acid form. A comparison additives demonstrates that amounts acetyl groups derivatives plasticizers are crucial in catalyzing reactions, creating unique environment capable leading total rearrangement acetates. can thus represent cornerstone establishing biorefinery acetate.

Language: Английский

Citations

3
Exploring the Potential of Hydrothermal Treatment for Microplastics Removal in Digestate DOI Creative Commons
Ifunanya R. Akaniro, Ruilong Zhang,

Christina H. M. Tsang

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 11, 2024

Language: Английский

Citations

0