|Title:||Addressing environmental sustainability of plasma vitrification technology for stabilization of municipal solid waste incineration fly ash||Authors:||Pei, S.-L.
|Keywords:||Heavy metals; Landfill; Life cycle assessment; Sustainable materials management; Uncertainty||Issue Date:||2020||Journal Volume:||398||Source:||Journal of Hazardous Materials||Abstract:||
Fly ash from municipal solid waste incineration is considered as a hazardous waste, which would raise great threats on environmental safety due to the inherent toxic heavy metals and organic pollutants. In this study, we applied the life cycle assessment to evaluate the thermal plasma vitrification process for stabilization of fly ash from municipal solid waste incineration. We established four scenarios: (i) plasma vitrification, including centralized and off-site plasma treatment, (ii) fuel-based vitrification, (iii) water-washing treatment followed by a rotary kiln, and (iv) conventional solidification and landfill. We found that the environmental impacts, especially toxicity to ecosystem quality and human health, could be significantly reduced by deploying plasma vitrification technology. We also found that centralized plasma vitrification facilities possessing larger treatment capabilities with clean electricity could further reduce the environmental impacts. In contrast, the water-washing treatment exhibited the highest environmental impacts due to the emissions of vaporized heavy metals. Based on the LCA and sensitivity analysis, we confirmed that the thermal plasma vitrification should be considered as an environmentally-friendly solution to sustainable treatment of fly ash from municipal solid waste incineration. Lastly, we provided several perspectives and prospects of plasma vitrification for realizing the sustainable materials management. © 2020 Elsevier B.V.
|DOI:||10.1016/j.jhazmat.2020.122959||SDG/Keyword:||Chemicals removal (water treatment); Environmental technology; Fly ash; Heavy metals; Life cycle; Municipal solid waste; Organic pollutants; Plasma applications; Sensitivity analysis; Stabilization; Sustainable development; Vitrification; Washing; Waste treatment; Environmental safety; Environmental sustainability; Life Cycle Assessment (LCA); Municipal solid waste incineration fly ashes; Plasma vitrification; Sustainable materials; Sustainable treatments; Toxic heavy metals; Waste incineration; fuel; heavy metal; lead; water; zinc; ecotoxicology; electricity generation; environmental impact assessment; fly ash; incineration; life cycle analysis; municipal solid waste; plasma; sustainability; vitrification; air pollution control; Article; climate change; ecotoxicity; electricity; energy consumption; environmental impact; environmental sustainability; evaporation; fly ash; greenhouse effect; health hazard; incineration; landfill; life cycle assessment; materials management; municipal solid waste; particulate matter; plasma gas; vaporization; vitrification; waste water treatment plant
|Appears in Collections:||生物環境系統工程學系|
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