Life cycle comparison of waste-to-energy alternatives for municipal waste treatment in Chilean Patagonia

Alberto Bezama, Carla Douglas, Jacqueline Méndez, Nóra Szarka, Edmundo Muñoz, Rodrigo Navia, Steffen Schock, Odorico Konrad, Claudia Ulloa

Resultado de la investigación: Article

11 Citas (Scopus)

Resumen

The energy system in the Region of Aysén, Chile, is characterized by a strong dependence on fossil fuels, which account for up to 51% of the installed capacity. Although the implementation of waste-to-energy concepts in municipal waste management systems could support the establishment of a more fossil-independent energy system for the region, previous studies have concluded that energy recovery systems are not suitable from an economic perspective in Chile. Therefore, this work intends to evaluate these technical options from an environmental perspective, using life cycle assessment as a tool for a comparative analysis, considering Coyhaique city as a case study. Three technical alternatives were evaluated: (i) landfill gas recovery and flaring without energy recovery; (ii) landfill gas recovery and energy use; and (iii) the implementation of an anaerobic digestion system for the organic waste fraction coupled with energy recovery from the biogas produced. Mass and energy balances of the three analyzed alternatives have been modeled. The comparative LCA considered global warming potential, abiotic depletion and ozone layer depletion as impact categories, as well as required raw energy and produced energy as comparative regional-specific indicators. According to the results, the use of the recovered landfill gas as an energy source can be identified as the most environmentally appropriate solution for Coyhaique, especially when taking into consideration the global impact categories.

Idioma originalEnglish
Páginas (desde-hasta)67-74
Número de páginas8
PublicaciónWaste Management and Research
Volumen31
N.º10 SUPPL.
DOI
EstadoPublished - oct 2013

Huella dactilar

Waste treatment
Life cycle
Recovery
Land fill
Gases
Ozone layer
Anaerobic digestion
Biogas
Global warming
Waste management
Energy balance
Fossil fuels
Economics

ASJC Scopus subject areas

  • Environmental Engineering
  • Pollution

Citar esto

Bezama, Alberto ; Douglas, Carla ; Méndez, Jacqueline ; Szarka, Nóra ; Muñoz, Edmundo ; Navia, Rodrigo ; Schock, Steffen ; Konrad, Odorico ; Ulloa, Claudia. / Life cycle comparison of waste-to-energy alternatives for municipal waste treatment in Chilean Patagonia. En: Waste Management and Research. 2013 ; Vol. 31, N.º 10 SUPPL. pp. 67-74.
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Bezama, A, Douglas, C, Méndez, J, Szarka, N, Muñoz, E, Navia, R, Schock, S, Konrad, O & Ulloa, C 2013, 'Life cycle comparison of waste-to-energy alternatives for municipal waste treatment in Chilean Patagonia', Waste Management and Research, vol. 31, n.º 10 SUPPL., pp. 67-74. https://doi.org/10.1177/0734242X13499810

Life cycle comparison of waste-to-energy alternatives for municipal waste treatment in Chilean Patagonia. / Bezama, Alberto; Douglas, Carla; Méndez, Jacqueline; Szarka, Nóra; Muñoz, Edmundo; Navia, Rodrigo; Schock, Steffen; Konrad, Odorico; Ulloa, Claudia.

En: Waste Management and Research, Vol. 31, N.º 10 SUPPL., 10.2013, p. 67-74.

Resultado de la investigación: Article

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T1 - Life cycle comparison of waste-to-energy alternatives for municipal waste treatment in Chilean Patagonia

AU - Bezama, Alberto

AU - Douglas, Carla

AU - Méndez, Jacqueline

AU - Szarka, Nóra

AU - Muñoz, Edmundo

AU - Navia, Rodrigo

AU - Schock, Steffen

AU - Konrad, Odorico

AU - Ulloa, Claudia

PY - 2013/10

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N2 - The energy system in the Region of Aysén, Chile, is characterized by a strong dependence on fossil fuels, which account for up to 51% of the installed capacity. Although the implementation of waste-to-energy concepts in municipal waste management systems could support the establishment of a more fossil-independent energy system for the region, previous studies have concluded that energy recovery systems are not suitable from an economic perspective in Chile. Therefore, this work intends to evaluate these technical options from an environmental perspective, using life cycle assessment as a tool for a comparative analysis, considering Coyhaique city as a case study. Three technical alternatives were evaluated: (i) landfill gas recovery and flaring without energy recovery; (ii) landfill gas recovery and energy use; and (iii) the implementation of an anaerobic digestion system for the organic waste fraction coupled with energy recovery from the biogas produced. Mass and energy balances of the three analyzed alternatives have been modeled. The comparative LCA considered global warming potential, abiotic depletion and ozone layer depletion as impact categories, as well as required raw energy and produced energy as comparative regional-specific indicators. According to the results, the use of the recovered landfill gas as an energy source can be identified as the most environmentally appropriate solution for Coyhaique, especially when taking into consideration the global impact categories.

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KW - MSW management

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