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Tequila vinasse has a high contaminating capacity due to its physicochemical characteristics. Efficient and low-cost alternative treatments are required to reduce and control the environmental impacts caused by raw vinasse discharges, mainly from micro and small factories. One option is wetland technologies in which vegetation plays an important role in the proper functioning of the system; thus, the species to be used must be properly selected based on their resistance and tolerance to the toxic effects of vinasse. Therefore, this study aims to evaluate the resistance of four macrophyte species to tequila vinasse in wetland microcosms that is,  Canna indica ,  Cyperus papyrus ,  Iris sibirica , and  Typha latifolia  which were exposed to 5, 7, 10, 12, and 15% of vinasse diluted with domestic wastewater. The control parameters (relative content, evapotranspiration, pH, electrical conductivity, and apparent color) showed that the plants in general developed stress symptoms. However, statistical analysis revealed a significant difference ( p  &lt; 0.05) between plant species and vinasse treatments, further evidencing that  I. sibirica  is the species with the greatest potential to be used as emergent vegetation in treatment wetlands for the purification of tequila vinasse.

international journal of phytoremediation

Resistance evaluation of  Canna indica ,  Cyperus papyrus ,  Iris sibirica , and  Typha latifolia  to phytotoxic characteristics of diluted tequila vinasses in wetland microcosms