Biosorption of manganese by Aspergillus niger and Saccharomyces cerevisiae

Abstract

Biosorption of manganese from its aqueous solution using yeast biomass Saccharomyces cerevisiae and fungal biomass Aspergillus niger was carried out. Manganese biosorption equilibration time for A. niger and S. cerevisiae were found to be 60 and 20 min, with uptakes of 19.34 and 18.95 mg/g, respectively. Biosorption increased with rise in pH, biomass, and manganese concentration. The biosorption equilibrium data fitted with the Freundlich isotherm model revealed that A. niger was a better biosorbent of manganese than S. cerevisiae.

Isotherm equilibria of Mn2+ biosorption in drinking water treatment by locally isolated Bacillus species and sewage activated sludge

“…In all the runs, the difference between the three replicates showed the errors were below than 5%. This modified method was adapted from previous studies investigating manganese biosorption by yeast and fungi (Parvathi et al, 2007). Mn 2þ stock solution was prepared using MnCl 2 .4H 2 O (Systerm: ChemAR Ò , Poland).…”

“…In addition, Mn 2þ also causes a bad taste and brownish water. Mn 2þ is released into the environment by industries such as those involved in the production of fertilizer, petrochemicals, electroplating, tanneries, metal processing, and mining industries (Hasan et al, 2011a;Parvathi et al, 2007). Regulations set by the Ministry of Health Malaysia require that the concentrations of manganese in raw water and treated water must be below 0.2 mg/L and 0.1 mg/L, respectively.…”

Cd, Cu, Ni, Mn and Zn resistance and bioaccumulation by thermophilic bacteria, Geobacillus toebii subsp. decanicus and Geobacillus thermoleovorans subsp. stromboliensis

“…Some industrial processes such as smelting, mining, metal forging, manufacturing of alkaline storage batteries, combustion of fossil fuel, electroplating, metal finishing, textile, ceramic, printing, pigments, fuels, photographic materials and explosive manufacturing result in the release of heavy metals in the environment (Salehizadeh and Shojaosadati 2003;Han et al 2006;Zaidi et al 2006;Parvathi et al 2006). Contamination of soils, groundwater, sediments, surface water and air with hazardous and toxic chemicals including heavy metals are serious problems, which have been faced by our world today (Ansari and Malik 2007).…”

Process Optimization and Biosorption of Lead Using Albizia Saman Leaf Powder

“…Beyond 50 min, the % biosorption is constant indicating the attainment of equilibrium conditions. The maximum biosorption of 79.45% (1.589 mg/g ) is attained for 50 min of agitation time with 10 g/L of 53 μm size biosorbent mixed in 50 mL of aqueous solution (C 0 =20 mg/L) [10,11].…”