Hydrochloric acid concentration and time to maximize lead and cadmium removal in laboratory wastewater (#573)
Read ArticleDate of Conference
July 19-21, 2023
Published In
"Leadership in Education and Innovation in Engineering in the Framework of Global Transformations: Integration and Alliances for Integral Development"
Location of Conference
Buenos Aires
Authors
García Zare, Elmis Jonatan
Mejía Pardo, Patricia Isabel
Soto Abanto, Segundo Eloy
Rodriguez Paredes, Noelia Patricia
Cerna Vasquez, Marco Antonio
Abstract
Abstract- Bioadsorption treatment of wastewater from a university chemical analysis laboratory was carried out using Chondracanthus chamissoi "mococho" algae as biomass, under study factors: hydrochloric acid concentration (1 and 2 N) and contact times (2 and 7 h) in a continuous flow bioreactor, in order to determine the combination of factors that maximize the removal of Lead (Pb) and Cadmium (Cd). A 2k factorial design with central points and the response surface method were used; from the results it was found that the combination of the factors hydrochloric acid (HCl) concentration and contact time that maximizes the removal of Pb ions are 2.5 N and 6.8 h and the combination of the factors that maximizes the removal of Cd ions are 2.1 N and 22 h, determining that the study factors generate statistically significant differences in the removal of Pb and Cd.