Biosorption of Copper(II) by Live and Dried Biomass of the White Rot FungiPhanerochaete chrysosporium andFunalia trogii

Abstract

Biosorption is an innovative and alternative technology to remove heavy metal pollutants from aqueous solution using live, inactive and dead biomasses such as algae, bacteria and fungi. In this study, live and dried biomass of Phanerochaete chrysosporium and Funalia trogii was applied as heavy metal adsorbent material. Biosorption of copper(II) cations in aqueous solution by live and dried biomass of Phanerochaete chrysosporium and Funalia trogii was investigated to study the effects of initial heavy metal concentration, pH, temperature, contact time, agitation rate and amount of fungus. Copper(II) was taken up quickly by fungal biomass (live or dried) during the first 15 min and the most important factor which affected the copper adsorption by live and dried biomass was the pH value. An initial pH of around 5.0 allowed for an optimum adsorption performance. Live biomass of two white rot fungi showed a high copper adsorption capacity compared with dried biomass. Copper(II) uptake was found to be independent of temperature in the range of 20–45 °C. The initial metal ion concentration (10–300 mg/L) significantly influenced the biosorption capacity of these fungi. The results indicate that a biosorption as high as 40–60 % by live and dried biomass can be obtained under optimum conditions.

Adsorptive removal of textile dyes from aqueous solutions by dead fungal biomass

“…One of the possible alternatives for the degradation of this type of compounds is the use of white rot fungi YESILADA 2004, YESILADA et al 2003). These fungi can remove a wide variety of structurally diverse pollutants (BHATT et al 2002, KAHRAMAN et al 2005, ASMA and YESILADA 2000, UNYAYAR and MAZMANCI 2005 , SANI et al 1998, AKSU and TEZER 2000, ZILLY et al 2002.…”

Statistical optimization of biosorption of Reactive Orange 13 by dead biomass of Rhizopus arrhizus NCIM 997 using response surface methodology

“…The increase in the biosorption at lower biosorbent dosage can be attributed to increased biosorbent surface area and the availability of more adsorption sites. Various reasons have been suggested to explain the reduced uptake capacity at higher biosorbent dosages such as competition of the ions for limited available sites, overlapping or aggregation of adsorption sites resulting in a decrease in the total adsorbent surface area, interference between binding sites and reduced mixing at higher biomass densities, and an increase in diffusion path length [31][32][33][34][35].…”

Caracterización de la biomasa inactiva de Aspergillus niger O-5 como sorbente de Pb (II)

“…19 A continuación el comportamiento cinético se mantiene prácticamente constante y la biosorción se torna más lenta, lo cual se explica por la reducción de los sitios activos disponibles 19 o por la lenta difusión intracelular del metal hacia la biomasa. 20 El tiempo de equilibrio seleccionado fue de 30 min que permitió remover la mayor cantidad del metal y alcanzar el equilibrio en el proceso de sorción.…”