Biosorción de plomo en aguas contaminadas, empleando biomasa del nostoc commune como alternativa ecológica

Carmencita Lavado Meza, Celinda Breña Chamorro, Humberto Bonilla Mancilla, Gregorio Cisneros Santos, Leonel de la Cruz Cerrón

Producción científica: Libro o Capítulo del libro Contribución a la conferenciarevisión exhaustiva

Resumen

In this research, the biomass of a cyanobacterium, nostoc commune (BNC), has been used as a biosorbent for the elimination of Pb (II) from polluted waters. The biosorbent was characterized by spectral and elemental analysis (FTIR and SEM/EDX). The influence of variables such as pH, contact time and BNC dose on the biosorption capacity (qe) was studied. The optimal conditions for the removal of Pb (II) were 2g/L of BNC, stirring time of 60 minutes and pH of the solution equal to 5.0. The kinetic data were analyzed using two models: pseudo first and second order kinetics. Equilibrium data using Langmuir and Freundlich isotherm models. Langmuir's equation provided the best correlation, which would indicate a monolayer biosorption, with a maximum removal capacity of 149.25 mg Pb/g BNC. The variable with the most significant influence on the Pb (II) removal capacity was pH. Research carried out demonstrated that BNC is a biosorbent with good potential to remove lead from aqueous media.

Título traducido de la contribuciónLead biosorption in polluted waters, using biomass from nostoc commune as an ecological alternative
Idioma originalEspañol
Título de la publicación alojada19th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology
Subtítulo de la publicación alojada"Prospective and Trends in Technology and Skills for Sustainable Social Development" and "Leveraging Emerging Technologies to Construct the Future", LACCEI 2021 - Proceedings
EditoresMaria M. Larrondo Petrie, Luis Felipe Zapata Rivera, Catalina Aranzazu-Suescun
EditorialLatin American and Caribbean Consortium of Engineering Institutions
ISBN (versión digital)9789585207189
DOI
EstadoIndizado - 2021
Evento19th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology: "Prospective and Trends in Technology and Skills for Sustainable Social Development" and "Leveraging Emerging Technologies to Construct the Future", LACCEI 2021 - Virtual, Online
Duración: 19 jul. 202123 jul. 2021

Serie de la publicación

NombreProceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
Volumen2021-July
ISSN (versión digital)2414-6390

Conferencia

Conferencia19th LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology: "Prospective and Trends in Technology and Skills for Sustainable Social Development" and "Leveraging Emerging Technologies to Construct the Future", LACCEI 2021
CiudadVirtual, Online
Período19/07/2123/07/21

Nota bibliográfica

Publisher Copyright:
© 2021 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.

Palabras clave

  • Cyanobacteria
  • Heavy metals
  • Removal
  • Water treatment

Huella

Profundice en los temas de investigación de 'Biosorción de plomo en aguas contaminadas, empleando biomasa del nostoc commune como alternativa ecológica'. En conjunto forman una huella única.

Citar esto