Porto 1990/2000: Evaluation of environmental burdens from MSW management using Life Cycle Assessment

• Autor(a) principal: Xará, Susana
• Data de Publicação: 2005
• Outros Autores: Almeida, M. F., Silva, M., Costa, C.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.14/6137

The environmental burdens to air and water resulting from the MSW management practices in the municipality of Porto were evaluated for 1990 and 2000 using the model developed by White et al (White et al, 1995). The operations considered in the study are collection, sorting, biological treatment, thermal treatment and landfilling. Savings from energy and recycling of recovered materials are also quantified. For each pollutant, the main source, among the operations considered, was identified. Results have shown that landfilling was the main source for air and water emissions in 1990, followed by collection. In 2000, thermal treatment was the main source for air pollutants and landfilling the main source of water pollutants, in both cases followed by collection. In 1990, collection was the main source for air emissions of particulates, CO, NOx, SOx to air, and of Organic compounds, Phenol and Fluoride to water. In 2000 it was the main source of NOx to air and TOC, phenol, total metals and fluoride to water. Biological treatment was the main source of N2O and nitrate to air in 1990 and of BOD, COD and ammonia to water in 2000.