Repositorio
Institucional

Bezama, Alberto

Douglas, Carla

Mendez, Jacqueline

Szarka, Nora

Munoz, Edmundo

Navia, Rodrigo

Schock, Steffen

Konrad, Odorico

Ulloa, Claudia

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

SAGE PUBLICATIONS LTD

WASTE MANAGEMENT & RESEARCH

en

The energy system in the Region of Aysen, 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.

Artículo original

We thank the University of Concepcion Research Directorate, DIUC Project 208.310.051-1sp, and Conicyt-Chile, Fondecyt Project 11080134, for financial support.

Agradecemos a la Dirección de Investigación de la Universidad de Concepción, Proyecto DIUC 208.310.051-1sp, y a Conicyt-Chile, Proyecto Fondecyt 11080134, por el apoyo financiero.

10.1177/0734242X13499810

pdf

MSW management

life cycle assessment

waste-to-energy alternatives

Coyhaique

Patagonia

DECISION-SUPPORT TOOL

MANAGEMENT-SYSTEMS

ENVIRONMENTAL ASSESSMENT

LCA

TECHNOLOGIES

INCINERATION

STRATEGIES

DISTRICT

OPTIONS

GAS

Gestión de residuos sólidos urbanos

evaluación del ciclo de vida

alternativas de conversión de residuos en energía

Coyhaique

Patagonia

HERRAMIENTA DE APOYO A LA DECISIÓN

SISTEMAS DE GESTIÓN

EVALUACIÓN AMBIENTAL

ACV

TECNOLOGÍAS

INCINERACIÓN

ESTRATEGIAS

DISTRITO

OPCIONES

GAS

MSW management

life cycle assessment

waste-to-energy alternatives

Coyhaique

Patagonia

DECISION-SUPPORT TOOL

MANAGEMENT-SYSTEMS

ENVIRONMENTAL ASSESSMENT

LCA

TECHNOLOGIES

INCINERATION

STRATEGIES

DISTRICT

OPTIONS

GAS

Gestión de residuos sólidos urbanos

evaluación del ciclo de vida

alternativas de conversión de residuos en energía

Coyhaique

Patagonia

HERRAMIENTA DE APOYO A LA DECISIÓN

SISTEMAS DE GESTIÓN

EVALUACIÓN AMBIENTAL

ACV

TECNOLOGÍAS

INCINERACIÓN

ESTRATEGIAS

DISTRITO

OPCIONES

GAS

Ciencias del Medio Ambiente

Ingeniería Ambiental y Geológica

Biotecnología Ambiental

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

WASTE MANAGEMENT & RESEARCH

hibrido

verde

metadata

PMID 23988463

en

Artículo original

versión publicada

UdeC Research Directorate#DIUC Project 208.310.051-1sp#ANID CONICYT FONDECYT 11080134

UdeC Research Directorate

DIUC Project 208.310.051-1sp

ANID CONICYT FONDECYT 11080134

SAGE PUBLICATIONS LTD

0734-242X

67

74

Ingeniería ambiental

Ciencias ambientales

Engineering, Environmental

Environmental Sciences

pdf

WOS:000329488200008