Browsing by Author "Llanquileo Melgarejo, Paula "

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    Evaluation of the Impact of Separative Collection and Recycling of Municipal Solid Waste on Performance: An Empirical Application for Chile
    (2021) Llanquileo Melgarejo, Paula ; Molinos-Senante, María ; Romano, Giulia; Carosi, Laura
    The collection of municipal solid waste (MSW) is a public service with notable effects on the environment and public health. The objective of this study was to evaluate the impact of selective collection and recycling of MSW on the performance of municipalities in providing MSW services. By employing the data envelopment analysis method, the efficiency and eco-efficiency scores for a sample of 298 municipalities in Chile were analyzed and compared. The efficiency estimation focused on the economic performance of the municipalities in the provision of MSW services, whereas the eco-efficiency assessment also integrated the environmental performance. The results indicated that the selective collection and recycling of MSW had a significant impact on the performance of the municipalities in providing these services. The percentages of efficient and eco-efficient municipalities were very low (4.70% and 4.36%, respectively), thus demonstrating the large room for performance improvement by Chilean municipalities in the management of MSW. The efficient and eco-efficient municipalities were heterogeneously distributed throughout the country, revealing the lack of collaboration between municipalities at the regional level. Finally, exogenous variables to the management of MSW carried out by the municipalities, including the population served, population density, tourism and waste generated per capita, all had an impact on the efficiency and eco-efficiency scores. The results and conclusions of this study are of great relevance for policy makers at the regional and local levels to improve the management of MSW in the context of a circular economy.
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    Plastic Pollution, Waste Management Issues, and Circular Economy Opportunities in Rural Communities
    (2021) Mihai, Florin-Constantin ; Gündogdu, Sedat ; Markley, Laura A. ; Olivelli, Arianna ; Khan, Farhan R. ; Gwinnett, Claire ; Gutberlet, Jutta ; Reyna-Bensusan, Natalia ; Llanquileo Melgarejo, Paula ; Meidiana, Christia ; Elagroudy, Sherien ; Ishchenko, Vitalii ; Penney, Simon ; Lenkiewicz, Zoe ; Molinos-Senante, Maria
    Rural areas are exposed to severe environmental pollution issues fed by industrial and agricultural activities combined with poor waste and sanitation management practices, struggling to achieve the United Nations' Sustainable Development Goals (SDGs) in line with Agenda 2030. Rural communities are examined through a "dual approach" as both contributors and receivers of plastic pollution leakage into the natural environment (through the air-water-soil-biota nexus). Despite the emerging trend of plastic pollution research, in this paper, we identify few studies investigating rural communities. Therefore, proxy analysis of peer-reviewed literature is required to outline the significant gaps related to plastic pollution and plastic waste management issues in rural regions. This work focuses on key stages such as (i) plastic pollution effects on rural communities, (ii) plastic pollution generated by rural communities, (iii) the development of a rural waste management sector in low- and middle-income countries in line with the SDGs, and (iv) circular economy opportunities to reduce plastic pollution in rural areas. We conclude that rural communities must be involved in both future plastic pollution and circular economy research to help decision makers reduce environmental and public health threats, and to catalyze circular initiatives in rural areas around the world, including less developed communities.