Caracterización de los residuos sólidos urbanos y desperdicios de alimentos del Distrito Metropolitano de Quito

Xavier Oña-Serrano; Oswaldo Viteri-Salazar; Juan José Cadillo Benalcázar; Xavier  Buenaño Guerra

doi:10.46380/rias.vol5.e230

Authors

Xavier Oña-Serrano Escuela Politécnica Nacional, Ecuador https://orcid.org/0000-0001-5807-3104
Oswaldo Viteri-Salazar Escuela Politécnica Nacional, Ecuador https://orcid.org/0000-0003-2552-0603
Juan José Cadillo Benalcázar Universitat Autònoma de Barcelona, España https://orcid.org/0000-0002-9747-926X
Xavier Buenaño Guerra Universidad Politécnica de Madrid, España https://orcid.org/0000-0002-4014-9104

DOI:

https://doi.org/10.46380/rias.vol5.e230

Keywords:

greenhouse gases, landfill, metabolic network, metabolic pattern

Abstract

The Metropolitan District of Quito generates solid urban waste with a significant organic composition, from food waste, which produces greenhouse gases and contributes to global warming and climate change. The purpose of this research was to quantify food waste in households in Quito, characterize the metabolism of urban solid waste management in the city, and estimate the contribution of this management to greenhouse gas emissions. The research is quantitative of an exploratory type. A survey was used to collect primary information, secondary information was obtained through literature review. The methodology of metabolic networks and the tool to calculate greenhouse gases were applied. The total amount of food waste was approximately 202 kg/week, on average 0.76 kg/week/household. According to the results of the urban solid waste management metabolic network, 543 967 tons were contributed to the landfill; and, 6273 tons for recycling. The estimated emission of gases was 934 088 t CO₂-eq/year. The characterization of urban solid waste management identified the metabolic pattern of the system, flows that are returned to society through recycling, and useful outputs such as composting and biogas.

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