Thermal decomposition of polypropylene plastics through vacuum pyrolysis

Nugroho, Rusdan Aditya Aji; Alhikami, Akhmad Faruq; Wang, Wei‐Cheng

doi:10.1016/j.energy.2023.127707

Cited by 6 publications

(3 citation statements)

References 35 publications

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“…The spectrum of MPs indicated the presence of two products, i.e. short-chain alcohols (R–C–OH) and carboxylic acids (R-COOH) 19 . Analysis of the position of the infrared (IR) absorption bands (Fig.…”

Section: Resultsmentioning

confidence: 99%

Disposable facemask waste combustion emits neuroactive smoke particulate matter

Pastukhov,

Paliienko,

Pozdnyakova

et al. 2023

Sci Rep

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Tremendous deposits of disposable medical facemask waste after the COVID-19 pandemic require improvement of waste management practice according to WHO report 2022, moreover facemasks are still in use around the world to protect against numerous airborne infections. Here, water-suspended smoke preparations from the combustion of disposable medical facemasks (polypropylene fibers) were collected; size, zeta potential, surface groups of smoke particulate matter were determined by dynamic light scattering, FTIR and Raman spectroscopy, and their optical properties were characterized. Neurochemical study using nerve terminals isolated from rat cortex revealed a significant decrease in the initial rate of the uptake/accumulation of excitatory and inhibitory neurotransmitters, L-[14C]glutamate and [3H]GABA, and exocytotic release, and also an increase in the extracellular level of these neurotransmitters. Fluorescent measurements revealed that ROS generation induced by hydrogen peroxide and glutamate receptor agonist kainate decreased in nerve terminals. A decrease in the membrane potential of nerve terminals and isolated neurons, the mitochondrial potential and synaptic vesicle acidification was also shown. Therefore, accidental or intentional utilization of disposable medical facemask waste by combustion results in the release of neuroactive ultrafine particulate matter to the environment, thereby contributing to plastic-associated pollution of air and water resources and neuropathology development and expansion.

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Section: Resultsmentioning

confidence: 99%

Disposable facemask waste combustion emits neuroactive smoke particulate matter

Pastukhov,

Paliienko,

Pozdnyakova

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…68 The gases produced in eqn (10) can be applied as reductants to facilitate the carbothermic reduction for the cathode recycling process. 68 The thermal decomposition of PE 96,97 and PPE 98,99 usually generates unsaturated and saturated hydrocarbons as gaseous, liquid and solid products by free radical reactions. The main products include methane, propylene, propane, 2-methylpentane, 2,4-dimethylpentane, and 2,4-dimethylheptane.…”

Section: Recycling Of Spent Libs By the Pyrometallurgical Processmentioning

confidence: 99%

“…The main products include methane, propylene, propane, 2-methylpentane, 2,4-dimethylpentane, and 2,4-dimethylheptane. 98,99 Notably, the decomposition products have been investigated as potential sources of microplastics, which need to be extensively studied in future. 97…”

Section: Recycling Of Spent Libs By the Pyrometallurgical Processmentioning

confidence: 99%