Bibliographic citations
Rojas, S., (2022). Impacto de la huella hídrica de participantes en una investigación en base a dos metodologías de caracterización de residuos sólidos: convecional y virtual en el marco de pandemia COVID-19, en el distrito de Comas [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/24544
Rojas, S., Impacto de la huella hídrica de participantes en una investigación en base a dos metodologías de caracterización de residuos sólidos: convecional y virtual en el marco de pandemia COVID-19, en el distrito de Comas [Tesis]. PE: Universidad Nacional de Ingeniería; 2022. http://hdl.handle.net/20.500.14076/24544
@misc{renati/712491,
title = "Impacto de la huella hídrica de participantes en una investigación en base a dos metodologías de caracterización de residuos sólidos: convecional y virtual en el marco de pandemia COVID-19, en el distrito de Comas",
author = "Rojas Santamaría, Selene Solmaira",
publisher = "Universidad Nacional de Ingeniería",
year = "2022"
}
In the present investigation, the impact of the water footprint of participants in a Household Solid Waste Characterization Study (ECRSD) with field evaluation (conventional form) and in another carried out in the framework of the Covid-19 Pandemic (virtual) was determined of the District Municipality of Comas-Lima, through the methodology established by ISO 14046: 2014. Environmental Management. Water footprint. Principles, requirements and guidelines, which consists of 4 phases that are: objectives and scope, inventory analysis, evaluation of environmental impacts and interpretation of results. The conventional characterization study carried out according to the methodology established in the Guide of the Ministry of the Environment (MINAM, 2019), was carried out in July 2019, for 10 days (planning and execution) with 15 people (including volunteers and drivers) who went from house to house collecting bags of household waste from 130 homes and for this they consumed food, water, plastic bags, fuel, electricity and made use of the hygienic services. It is worth mentioning that characterization studies traditionally require field work. Due to the Covid-19 pandemic, due to mandatory social isolation, it was impossible to carry out the field work for the characterization studies in a conventional way; however, an innovative methodology emerged (which is an adaptation of the MINAM Guide) that learned how the pandemic has impacted the composition and generation of household solid waste without having to leave home, through data collection virtually. In this way, a virtual study was carried out, in the month of September 2020, for 10 days led by a group of 15 volunteers belonging to the FIA-UNI Solid Waste Technical Team in charge of virtual logistics and with 80 participants from 33 homes that did not need to leave the house, but did consume water, electricity and plastic bags. The functional unit (FU) considered in each study was one (01) kilogram of characterized waste. The category of impact of water use (quantity) was evaluated using indicators of i) midpoint (scarcity), ii) endpoint (human health) and iii) endpoint (freshwater ecosystems); and the freshwater eutrophication impact category (quality) using iv) midpoint (eutrophication) and v) endpoint (freshwater ecosystems) indicators. The water footprint evidenced through the conventional study (190 L/ FU), was 37 times more than the virtual study (5.1 L/ FU). Regarding the water use impact category i) the scarcity footprint of the conventional study (3181 L/ FU) was 32 times more than the virtual study (99 L/ FU), ii) the impact on human health for the conventional study (4.32E-7 DALY/ FU) was 38 times more than the virtual study (1.13E-8 DALY/ FU) and iii) the impact on freshwater ecosystems for the conventional study (1.17E-13 species. year/FU) was 38 times more than the virtual study (3.07E-15 species.year/FU). On the other hand, regarding the freshwater eutrophication impact category iv) the eutrophication footprint of the conventional study (0.0004 Kq P eq/ FU) was 6 times more than the virtual study (0.00006 Kg P eq/ FU) and v ) the impact on freshwater ecosystems in the conventional study (2.69E-10 species.year/FU) was also 6 times higher than the virtual study (4.02E-11 species.year/FU). In conclusion, the water footprint evidenced through the conventional characterization study was 97.32% higher than the virtual characterization study. Additionally, food consumption (99.29%) and electrical energy consumption (97.03%) of the participants involved in the conventional and virtual characterization study, respectively, show the largest water footprint. In terms of environmental impacts, the conventional characterization study shows a greater scarcity footprint, eutrophication footprint and impacts on human health and freshwater ecosystems.
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