Saneamento seco; Banheiro seco; Edificação multipavimentar; Analytic Hierarchy Process; AHP
Name: JÚLIA KELLER FRANCI
Publication date: 25/10/2024
Examining board:
Name |
Role |
|---|---|
| EDNILSON SILVA FELIPE | Examinador Interno |
| PAULA LOUREIRO PAULO | Examinador Externo |
| ROSANE HEIN DE CAMPOS | Presidente |
Summary: The urbanmetabolismof modern cities is characterized by a linear flow of natural resources, which limits the reuse of materials considered waste. This model is unsustainable and may lead to the depletion of the planet's resources. In alignment with global sustainable development needs, SDG 6 (Sustainable Development Goal) establishes that 99% of the population should have access to potable water and that 90% should have sewage collection and treatment by 2033. To achieve this goals, there is a consensus on the need to promote research on technologies that aim to close the nutrient cycle, maximizing their use, as suggested by the NEXUS concept.
This research utilized the AHP (Analytic Hierarchy Process) method to assess the suitability of urine-segregating dry toilets in a multistory residential building compared to a conventional hydrosanitary system, from the perspective of the main stakeholders of the condominium: the residents. The results indicated that, in the context where the implementation of the dry system occurs in a city whose primary human excrement management system is still water-based, the conventional system is more appropriate, presenting a Global Priority of 0.623 when analyzing criteria such as user acceptability, operation and maintenance time, operation and maintenance costs, water savings, reduction in sewage production, reduction in solid waste production, and
sanitary risk. These criteria were evaluated from social, environmental, and economic viewpoints.
Despite being less favorable in an overall analysis of the criteria, the dry system proved superior to the conventional one in terms of water savings and sewage production. A possible reduction of up to 10% in water consumption and sewage production was estimated, in addition to allowing for the commercialization and recovery of components from human excreta.
