Phytoremedial potential of the high Andean algae Mougeotia sp. and Spirogyra sp. (Charophyta): Study of the bioremoval performance of copper and lead

Jara-Peña E.; Terreros H.M.; Oré K.Q.; Carrión J.G.; Quinteros-Gómez Y.; Rojas T.S.; Prada D.M. · Lilloa (2024) · DOI: 10.30550/j.lil/2015

Resumen

In the 18th century, during the Viceroyalty of Peru, the Cerro de Pasco mine began exploiting silver and lead, an activity that continues to this day, polluting the soil and waters of the San Juan River basin in the Pasco region with heavy metals. To analyze the effectiveness of the green algae Mougeotia sp. and Spirogyra sp. in the bioremediation of copper and lead, samples of both species were collected from the San Juan River and after culturing in Chu 10 culture medium. The study was conducted using a 3 x 3 x 2 factorial experimental design (3 indicates the three treatments of copper and lead, and 2 are the two species of filamentous green algae), with 5 replicates per treatment. The results showed both Mougeotia sp. and Spirogyra sp. with the 30 mg L-1 lead treatment achieved the highest removal efficiencies of 97 % and 87.6 % lead bioremoval, respectively. Both species showed a remarkable lead and copper bioremoval capacity, but with a significant decrease in biomass and chlorophyll a content.

Instituciones: Universidad Nacional Mayor de San Marcos