BANANA PEEL USAGE AS A POTENTIAL BIOSORBENT FOR HEAVY METALS REMOVAL FROM EFFLUENT

Autores: Jessica Pereira Pires1, Tiago Vidaletti¹, Gabriel de Araujo Espindola¹, Alessandro da Silva Ramos¹, Wesley Formentin Monteiro¹, Jeane Ayres de Lima¹, Rogerio Vescia Lourega¹.

¹ School of Sciences of Pontifical Catholic University of Rio Grande do Sul - PUCRS.

E-mails: jessica.pires.001@acad.pucrs.br; jeane.lima@pucrs.br;  tiago.vidaletti@acad.pucrs.br; gabriel.araujo.002@acad.pucrs.br; alessandro.ramos@acad.pucrs.br; wesleymonteiro@msn.com;rogerio.lourega@pucrs.br.

 

Since the last decade, the world is converging to a recycling culture in order to reach for the smaller environment impact possible. Because of this effect, many researches have been studying different applications for biomass residues, such as biofertilizers,

energy generation and the production of biosorbents capable of removing heavy metal from effluents. In this scenario, this work proposes to analyse the potential of using banana peel (water washed and dried) as a biosorbent for heavy metals (Al, Cr, Zn and Ni) found in effluents. The adsorbents were characterized through FTIR, MEV and ICP-OES techniques. The metal ion adsorption tests showed that the best adsorption or reaction time was 30 min. For Catarina banana peels a removal of 80% Al, 89% Cr, 61 % Ni and 83 % Zn were found, while for Caturra banana peels the values were 73% Al, 90% Cr, 59% Ni e 83% Zn. These results suggest that the banana peels present a high potential to be used as effective heavy metals adsorbent.

Keywords: banana peels; biomass waste; biosorbents; heavy metals; adsorption.

 

Acesse: www.energybss.com/magazine pag 33