Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 457, P. 142392 - 142392
Published: May 2, 2024
Language: Английский
ACS ES&T Engineering, Journal Year: 2025, Volume and Issue: 5(2), P. 531 - 540
Published: Jan. 2, 2025
The environmental risk associated with bioplastics has garnered increasing attention. However, their fates and the driving mechanisms in industrial composting engineering, which is a primary method for treating food waste, remain unclear. This study delved into degradation behaviors of poly(lactic acid) (PLA) its correlation PLA-associated bacterial communities simulated waste systems without addition microbial agent (MA). results derived from water contact angle molecular weight (Mn) analyses indicate that exhibited limited capacity polymer. (MA) demonstrated promoting effect, leading to final Mn values 8970 g·mol–1 treatment group 19,324 control group, compared an initial 50,136 influence on manifested later stages composting, showing lower diversity (Shannon index 4.11) compost (4.50). supplementation MA facilitated development biofilms within plastisphere, resulting increased level presence functional bacteria crucial PLA degradation. sheds light underlying under typical conditions, providing insights effective handling evaluation environments.
Language: Английский
Citations
1
Waste Management, Journal Year: 2025, Volume and Issue: 201, P. 114793 - 114793
Published: April 14, 2025
The European Union's recycling objectives of 50 % for packaging by 2025 and 55 2030 are still far from the current rate 37.8 %. Thermochemical via pyrolysis might improve recovery rates, especially challenging post-consumer dirty contaminated plastics. Many studies focus on virgin plastics artificial mixtures these to simulate real-world mixed plastic waste scenarios. This study examines a sample pre-sorting an Italian composting plant represent real within collection chain. contains plastics, organics, paper, others, with making up 72.18 sample, primarily identified as LDPE, PP, HDPE. were tested individually mixture, mirroring concentrations observed original in bench-scale semi-batch reactor at varying temperatures (420 °C, 470 520 °C) residence times. analysis indicated that temperature time considerably influence product yields composition, although has more dominant effect. Wax showed paraffins olefins primary components, peak carbon number distribution C14-C19 range elevated temperatures. Contaminant wax substantial levels halogens metals, posing challenges downstream processes. Results mixture tests revealed individual polymers could be predicted linear combination their behaviors, accuracy 10 margin error across examined lower
Language: Английский
Citations
0
Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: May 1, 2025
Due to the growing environmental concerns of petroleum-based plastics, there has been a surge interest in biodegradable alternatives. In this study, starch-based bioplastic was prepared using biopolymers extracted from corn and potato biopolymer mixed with calcium carbonate (filler) plasticizers (glycerol-sorbitol) evaluated. For fabricated formulation, Taguchi analysis gave an optimal formulation 9 g starch, mL glycerol, 2.5 carbonate, having well-balanced mechanical strength, flexibility, biodegradability. The results showed major improvement tensile strength 22.5% (6.08 MPa) 31.7% increase Young's modulus (0.103 GPa), compared least effective sample. biodegradation tests, degradation rate C1 (66.68%) fastest, while C3 had slower (29.08%). Moisture absorption varied considerably, sample COM3 absorbing 25.92% just 4.35% for P3, P3 absorbed only 4.35%. Among compounds, higher lower percentage water solubility were P1 (20.50%) (49.04%) respectively. These underscore potential bioplastics sustainable packaging, offering environmentally friendly option traditional plastics.
Language: Английский
Citations
0
Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 457, P. 142392 - 142392
Published: May 2, 2024
Language: Английский
Citations
0