title: A case study of packaging waste collection systems in Portugal - Part II: Environmental and economic analysis.
abstract: An understanding of the environmental impacts and costs related to waste collection is needed to ensure that existing waste collection schemes are the most appropriate with regard to both environment and cost. This paper is Part II of a three-part study of a mixed packaging waste collection system (curbside plus bring collection). Here, the mixed collection system is compared to an exclusive curbside system and an exclusive bring system. The scenarios were assessed using life cycle assessment and an assessment of costs to the waste management company. The analysis focuses on the collection itself so as to be relevant to waste managers and decision-makers who are involved only in this step of the packaging life cycle. The results show that the bring system has lower environmental impacts and lower economic costs, and is capable of reducing the environmental impacts of the mixed system. However, a sensitivity analysis shows that these results could differ if the curbside collection were to be optimized. From economic and environmental perspectives, the mixed system has few advantages.
authors.affiliation: Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal. Electronic address: alp11931@fct.unl.pt.
authors.forename: Ana
authors.initials: A
authors.lastname: Pires
authors.affiliation: Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
authors.forename: João
authors.initials: J
authors.lastname: Sargedas
authors.affiliation: Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
authors.forename: Mécia
authors.initials: M
authors.lastname: Miguel
authors.affiliation: Departmento de Ciências Sociais Aplicadas and CEFAGE-FCT/UNL, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
authors.forename: Joaquim
authors.initials: J
authors.lastname: Pina
authors.affiliation: Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
authors.forename: Graça
authors.initials: G
authors.lastname: Martinho
mesh_terms: D003365:Costs and Cost Analysis; D004777:Environment; D011174:Portugal; D019064:Product Packaging / Q000191:economics*; D059027:Recycling / Q000379:methods; D018505:Waste Management / Q000191:economics* / Q000379:methods
keywords: Bring collection; Curbside collection; Economic assessment; Life cycle assessment