Environmental Assessment of Municipal Solid Waste by Two-Stage Plasma Gasification

Plasma gasification is a thermal treatment successfully applied to waste streams, especially for solid residues. It sets an upgrade to more common waste-to-energy (WtE) techniques as incineration or gasification, granting lower levels of pollutant emissions, less landfilled materials and higher conv...

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Main Authors: Ana Ramos, Carlos Afonso Teixeira, Abel Rouboa
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/12/1/137
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author Ana Ramos
Carlos Afonso Teixeira
Abel Rouboa
author_facet Ana Ramos
Carlos Afonso Teixeira
Abel Rouboa
author_sort Ana Ramos
collection DOAJ
description Plasma gasification is a thermal treatment successfully applied to waste streams, especially for solid residues. It sets an upgrade to more common waste-to-energy (WtE) techniques as incineration or gasification, granting lower levels of pollutant emissions, less landfilled materials and higher conversion efficiencies and producer gas quality. A life cycle assessment (LCA) of plasma gasification for one ton of a defined stream of solid waste is presented and compared to the hypothetical outcomes of incineration, highlighting the need to implement such sustainable techniques rather than more polluting ones. CML 2001 methodology was applied, enabling the evaluation of eleven impact categories, all of them depicting avoided burdens for the environment. Enhanced efficiency and cleanliness were seen due to the plasma step and to the replacement of part of the electrical grid mix by the produced electricity. Plasma gasification presented an overall better performance than incineration, portraying savings in energy and material resources as well as lower emissions to freshwater. Additionally, lower amounts of air contaminants were seen as well as almost triple of the produced electricity.
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spelling doaj.art-df27e60308b6409c9b20bc352920ba662022-12-22T04:23:40ZengMDPI AGEnergies1996-10732019-01-0112113710.3390/en12010137en12010137Environmental Assessment of Municipal Solid Waste by Two-Stage Plasma GasificationAna Ramos0Carlos Afonso Teixeira1Abel Rouboa2INEGI-FEUP, Institute of Science and Innovation in Mechanical and Industrial Engineering, Faculty of Engineering of the University of Porto, 4200-465 Porto, PortugalCITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-Os-Montes and Alto Douro, 5001-801 Vila Real, PortugalINEGI-FEUP, Institute of Science and Innovation in Mechanical and Industrial Engineering, Faculty of Engineering of the University of Porto, 4200-465 Porto, PortugalPlasma gasification is a thermal treatment successfully applied to waste streams, especially for solid residues. It sets an upgrade to more common waste-to-energy (WtE) techniques as incineration or gasification, granting lower levels of pollutant emissions, less landfilled materials and higher conversion efficiencies and producer gas quality. A life cycle assessment (LCA) of plasma gasification for one ton of a defined stream of solid waste is presented and compared to the hypothetical outcomes of incineration, highlighting the need to implement such sustainable techniques rather than more polluting ones. CML 2001 methodology was applied, enabling the evaluation of eleven impact categories, all of them depicting avoided burdens for the environment. Enhanced efficiency and cleanliness were seen due to the plasma step and to the replacement of part of the electrical grid mix by the produced electricity. Plasma gasification presented an overall better performance than incineration, portraying savings in energy and material resources as well as lower emissions to freshwater. Additionally, lower amounts of air contaminants were seen as well as almost triple of the produced electricity.http://www.mdpi.com/1996-1073/12/1/137waste-to-energyplasma gasificationsustainabilitylife cycle assessment
spellingShingle Ana Ramos
Carlos Afonso Teixeira
Abel Rouboa
Environmental Assessment of Municipal Solid Waste by Two-Stage Plasma Gasification
Energies
waste-to-energy
plasma gasification
sustainability
life cycle assessment
title Environmental Assessment of Municipal Solid Waste by Two-Stage Plasma Gasification
title_full Environmental Assessment of Municipal Solid Waste by Two-Stage Plasma Gasification
title_fullStr Environmental Assessment of Municipal Solid Waste by Two-Stage Plasma Gasification
title_full_unstemmed Environmental Assessment of Municipal Solid Waste by Two-Stage Plasma Gasification
title_short Environmental Assessment of Municipal Solid Waste by Two-Stage Plasma Gasification
title_sort environmental assessment of municipal solid waste by two stage plasma gasification
topic waste-to-energy
plasma gasification
sustainability
life cycle assessment
url http://www.mdpi.com/1996-1073/12/1/137
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