Biosorption of chromium (VI) from aqueous solutions by fungal biomass of cryptococcus neoformans and helminthosporium sp [Bioadsorción de Cromo (VI) en Solución Acuosa por la Biomasa Celular de Cryptococcus neoformans y Helminthosporium sp.]

A determination was made on the biosorption of dissolved Chromium (VI) using cellular biomass of the encapsulated yeast Cryptococcus neoformans and the mycelial fungus Helminthosporium sp. using a diphenylcarbazide colorimetric method. The C. neoformans biomass was more efficient in removing Chromium (VI) from solution (98%25) than the Helminthosporium sp. (65%25). The highest biosorption for C. neoformans was at pH 2.0 %2b/- 0.02, while for Helminthosporium sp this occurred at pH 4.0 %2b/- 0.2 , both at 28°C for 24 h employing 0.2 mg/L of cellular biomass. It is concluded that the fungal biomasses efficiently removed Chromium (VI) from solution and could be used for decontamination of aquatic habitats polluted with this metal.

Biosorption; Chromium (VI); Fungal biomass; Pollution control; Wastewater Biomass; Chromium; Contamination; Pollution control; Solutions; Sorption; Wastewater treatment; Water pollution control; Yeast; Biosorption; Cellular biomass; Diphenylcarbazide colorimetric method; Encapsulated yeast; Fungal biomass; Mycelial fungus; Chemicals removal (water treatment)

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