Regenerative Energie
Coyhaique, capital city of the Aysén Region in Chile’s southern Patagonia, has approx. 45,450 inhabitants, concentrating about 50% of the total regional population (INE 2002). Currently, approx.14,000 Mg/year of municipal solid waste (MSW) are generated in Coyhaique, resulting in a per capita generation of 0.84 kg/day, characterized mainly by its organic content of 51% (SA 2008). These wastes are deposited in a landfill, which has become saturated in recent years.
Life Cycle Analysis (LCA) has been internationally used for comparing environmental impacts associated with different management scenarios of municipal solid waste (MSW). The present study compared three MSW management scenarios for the city of Coyhaique, in the Chilean Patagonia, in order to identify the most environmentally suitable alternative to manage them: MSW direct landfill disposal (Scenario 0), direct disposal in sanitary landfill and landfill gas recovery for energy production (Scenario 1), and biogas recovery through a digester, for the energy production (Scenario 2). Results show that Scenario 0 presents the greatest negative impacts, whereas Scenario 1 is the major positive impacts foreseen in the indicators evaluated, making it the most environmentally friendly alternative.
| Copyright: | © Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben |
| Quelle: | Depotech 2010 (November 2010) |
| Seiten: | 4 |
| Preis: | € 2,00 |
| Autor: | Carla Douglas Dr. Alberto Bezama Nora Szarka Elena Muñoz |
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