Chemical upcycling of plastics as a solution to the plastic trash problem for an ideal, circular polymer economy and energy recovery

Shekhar, Shashank; Hoque, Md Enamul; Bajpai, Pramendra Kumar; Islam, Habibul; Bk, Sharma

doi:10.1007/s10668-023-03003-8

Cited by 3 publications

(1 citation statement)

References 134 publications

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“…Therefore, finding suitable ways to dispose of waste plastics is a key initiative to achieve sustainable development and alleviate global environmental problems [2]. The energy utilization of waste plastics is one feasible direction for the high-value recycling of waste plastics [3,4]. Catalytic cracking technology (CCT) and incineration and power generation technology (IAPGT) are both energy utilization technologies; CCT has not yet achieved large-scale production, whereas IAPGT is more maturely developed [5,6].…”

Section: Introductionmentioning

confidence: 99%

Which Is More Environmentally Friendly? A Comparative Analysis of the Environmental Benefits of Two Waste-to-Energy Technologies for Plastics Based on an LCA Model

Zhao

Ren²,

Wen-fang

2023

Sustainability

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Waste plastics are low-value waste; thus, achieving high-value recycling is the most desirable goal. Scientific methods are required to evaluate the environmental benefits and support the technology optimization and market selection of waste-to-energy technology for plastics. This study selected catalytic cracking and incineration power generation of two typical examples of waste plastics energy technologies as the research objects, established a full life cycle assessment model, and used the mid-point method to analyze and compare the environmental benefits of the two technologies. The results showed that catalytic cracking technology is more environmentally friendly. The sensitivity analysis showed that the treatment units had a high impact on the results; process optimization predicted the efficiency of technology optimization and advocated future technological developments to explore the direction of using clean energy, upgrading equipment, and updating catalysts. The results of this study can provide ideas for the optimization of two kinds of waste plastics energy technology. In addition, the comparative data analysis intuitively demonstrated the advantages and disadvantages of waste-to-energy technologies and provided a practical path for the future development of high-value treatments for waste plastics.

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Section: Introductionmentioning

confidence: 99%

Which Is More Environmentally Friendly? A Comparative Analysis of the Environmental Benefits of Two Waste-to-Energy Technologies for Plastics Based on an LCA Model

Zhao

Ren²,

Wen-fang

2023

Sustainability

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Upgrading Polyolefin Plastic Waste into Multifunctional Porous Graphene using Silicone‐Assisted Direct Laser Writing

Qu,

Guo,

Cai

et al. 2024

Small

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The widespread use of plastics, especially polyolefin including polyethylene and polypropylene, has led to severe environmental crises. Chemical recycling, a promising solution for extracting value from plastic waste, however, is underutilized due to its complexity. Here, a simple approach, silicone‐assisted direct laser writing (SA‐DLW) is developed, to upgrade polyolefin plastic waste into multifunctional porous graphene, called laser‐induced graphene (LIG). This method involves infiltrating polyolefins with silicone, which retards ablation during the DLW process and supplies additional carbon atoms, as confirmed by experimental and molecular dynamic results. A remarkable conversion yield of 38.3% is achieved. The upgraded LIG exhibited a porous structure and high conductivity, which is utilized for the fabrication of diverse energy and electronic devices with commendable performance. Furthermore, the SA‐DLW technique is versatile for upgrading plastic waste in various types and forms. Upgrading plastic waste in the form of fabric has significantly simplified pre‐treatment. Finally, a wearable flex sensor is fabricated on the non‐woven fabric of a discarded medical mask, which is applied for gesture monitoring. This work offers a simple but effective solution to upgrade plastic waste into valuable products, contributing to the mitigation of environmental challenges posed by plastic pollution.

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Innovations for sustainable chemical manufacturing and waste minimization through green production practices

Mei,

Min

2024

High Temperature Materials and Processes

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In the current scenario, a green product is designed to have a minimal impact on the environment as it is made from recycled materials. In the highly energy-intensive industry, green production has a significant influence on business sustainability. The intelligent environment around us created an unavoidable problem, because of the uncontrolled growth in waste materials like plastic and electrical trash. Both seriously endanger the environment, wildlife, and human health, trash has an impact on societal structures and financial systems in future generations. Industrial and domestic plastic wastes, which are dumped in landfills or the environment, are mostly made of polyethylene (PE) polymers. These wastes’ polymeric nature makes them difficult for microorganisms to degrade. Incorporating biological and chemical processes together is facilitated by pyrolysis and the biodegradation of alkenes to achieve the maximum biodegradation of PE plastics, as proposed in this study, to reduce plastic waste. This research outcome demonstrates that the Waste plastic recycling plant dataset is taken to show the decomposition of high-density PE plastic to simpler alkene with microbial-assisted degradation of alkene to biomass through bacterial communities. Communities of microbes from three different environments inoculating at three nutrient levels are monitored for their ability to degrade model alkenes (with several carbon atoms) within 5 days. There is Plenty of evidence indicating that the nutritional content significantly influences the rates at which hydrocarbons are broken down. These findings imply that the microorganisms required for alkene breakdown are present in a wide range of ambient microbial communities and are significantly chosen under optimized environments such as nutrient enrichment.

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Chemical upcycling of plastics as a solution to the plastic trash problem for an ideal, circular polymer economy and energy recovery

Cited by 3 publications

References 134 publications

Which Is More Environmentally Friendly? A Comparative Analysis of the Environmental Benefits of Two Waste-to-Energy Technologies for Plastics Based on an LCA Model

Which Is More Environmentally Friendly? A Comparative Analysis of the Environmental Benefits of Two Waste-to-Energy Technologies for Plastics Based on an LCA Model

Upgrading Polyolefin Plastic Waste into Multifunctional Porous Graphene using Silicone‐Assisted Direct Laser Writing

Innovations for sustainable chemical manufacturing and waste minimization through green production practices

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