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 contribución | Lead biosorption in polluted waters, using biomass from nostoc commune as an ecological alternative |
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Idioma original | Español |
Título de la publicación alojada | 19th 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 |
Editores | Maria M. Larrondo Petrie, Luis Felipe Zapata Rivera, Catalina Aranzazu-Suescun |
Editorial | Latin American and Caribbean Consortium of Engineering Institutions |
ISBN (versión digital) | 9789585207189 |
DOI | |
Estado | Indizado - 2021 |
Evento | 19th 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. 2021 → 23 jul. 2021 |
Serie de la publicación
Nombre | Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology |
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Volumen | 2021-July |
ISSN (versión digital) | 2414-6390 |
Conferencia
Conferencia | 19th 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 |
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Ciudad | Virtual, Online |
Período | 19/07/21 → 23/07/21 |
Nota bibliográfica
Publisher Copyright:© 2021 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.
Palabras clave
- Cyanobacteria
- Heavy metals
- Removal
- Water treatment