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Studying chromium biosorption using arabica coffee leaves
Estudio de la biosorción de cromo con hoja de café
DOI:
https://doi.org/10.15446/ing.investig.v29n2.15162Keywords:
chromium, coffee leaf (Castle variety), arabica coffee, biosorption (en)cromo, hoja de café variedad castillo, coffee arabica, biosorción (es)
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This work was aimed at providing an alternative for removing heavy metals such as chromium from waste water (effluent) from the leather industry and galvanoplasty (coating with a thin layer of metal by electrochemical means), using coffee leaves as biomass. Using arabica coffee (Castle variety) leaves led to 82% chromium removal efficiency for 1,000 mg/L synthetic dissolutions in 4 pH dissolution operating conditions, 0 rpm agitation, 0.149 mm diameter biomass particle size and 0.85 g/ml biomass / dissolution volume ratio.
El objeto de este trabajo es proveer una alternativa para la remoción de metales pesados como el cromo de las aguas residuales (efluentes) de la industria del cuero y de electrorrecubrimientos de piezas metálicas (galvanoplastia), utilizando como biomasa hojas de café. A condiciones de operación de pH de la disolución de 4, grado de agitación 0 rpm, tamaño de partícula de la biomasa de 0,149 mm de diámetro y relación masa de biomasa / volumen de disolución de 0,85 gr/ml, se obtuvieron eficiencias en la remoción de cromo, con la hoja de café variedad castillo, coffee arabica del 82% para disoluciones sintéticas de 1.000 mg/L.
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Copyright (c) 2009 Luis Carlos Florez García, Juan Felipe Arroyave Londoño, Oscar Fabián Higuera Cobos
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