SciELO - Scientific Electronic Library Online

 
vol.13 número2Aumento de la actividad metanogenica en lodos granulares, precipitando calcio en el nejayote mediante el burbujeo de CO2Modelado de un adsorbedor de lecho fijo basado en un modelo de isoterma o un modelo cinético aparente índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Revista mexicana de ingeniería química

versão impressa ISSN 1665-2738

Resumo

DOMINGUEZ-MALDONADO, J.A. et al. Reduction of cation exchange capacity in a microbial fuel cell and its relation to the power density. Rev. Mex. Ing. Quím [online]. 2014, vol.13, n.2, pp.527-538. ISSN 1665-2738.

A PEM type Microbial Fuel Cell was designed and constructed. This cell consisted of four pairs of chambers with a volume of 0.5 L each one of them, separated by a Nafion®117 membrane. The cell was monitored during 122 days, using synthetic wastewater as carbon source. The reduction of cation exchange capacity in the membrane was evaluated in two phases: 1 and 2, the first one at 43 days and the second one at 79 days. The cationic exchange coefficients obtained were 2.03 ×10-3 and 1.25 ×10-3 meq g-1 polymer, for phase 1 and 2 respectively, indicating a decrease in the cation exchange properties in the membrane. The maximum obtained power densities were 325 and 97 mW.m-3, respectively. The reduction of power density at phase 2 was attributed to a decrease in the cation-exchange capacity by iron fouling and a formation of a biofouling layer in the membrane.

Palavras-chave : cation exchange capacity; proton exchange membrane; biofouling; microbial fuel cell; power density.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons