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- Resumen es exacto "In this Thesis a proposal is presented that allows evaluating the performance of technologies for the reuse of domestic wastewater, at the household level, using sustainability criteria (LAC), in this way the production of domestic wastewater in the region is investigated and analyzed., where the current use of said wastewater was determined and the potential that this resource can have if an optimal management is carried out. Thus, the most used domestic wastewater reuse and treatment technologies were investigated and determined in LAC, which showed that these technologies are rapid infiltration, treatment ponds, free-flowing wetlands, aquatic plants, multiple-action septic tanks and systems. Of nutrient and energy treatment. This determines the state of the art of each technology in detail. In this sense, another fundamental aspect begins in this research work, which is the creation of a qualitative valuation matrix composed of indices applied in another methodology and indices of this work are added, the same ones that consider sustainability as a factor. Important and decisive for comparing domestic wastewater treatment technologies. In this way, the first product of this work is generated, which is the qualitative valuation matrix, an automated Excel sheet that can be used to rate some technologies and know which is the most sustainable. With the application of this matrix, 4 technologies classified as the most sustainable were identified, and with this we proceeded to formulate the new assessment tool, which is the assessment matrix which is composed of five main indicators and twenty-three sub-indices that they thoroughly analyze every aspect that makes up each technology. This matrix was put into operation in a project already carried out, taking into account the scenario where the project was developed, it began with the qualification of the indices and sub-starts in the valuation matrix, identifying the specific requirement so that we can carry out the analysis. and comparison between the 4 technologi , it has to be done in pairs, that is, two by two, obtaining 6 analyzes between the four technologies, where it was identified that SUTRANE is the technology that is most sustainable and is recommended for this case specific study to be used as a technology for the treatment and reuse of domestic wastewater. Thus, in this thesis, two main analysis and decisionmaking tools were obtained when using a domestic wastewater treatment and reuse technology, an also a view of the current state of water in LAC."
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