Biosorption of Heavy Metal Ions from Aqueous Solutions by Nonliving Scenedesmus Quadricauda Biomass
In present study, biosorptions of lead (II), cadmium (II), cobalt (II) and chromium (III) ions from water were studied and dead algae biomass (Scenedesmus quadricauda Chodat) was used as natural and biological sorbents. The effects of pH, contact time and metal concentration on the biosorption capacity were investigated. The maximum biosorption capacities for Co (II), Cr (III), Cd (II) and Pb (II) were found to be 32.8, 20.3, 63.9 and 123.0 mg/g, respectively. The experiments showed that when pH increased, an increase in the biosorption capacity of the biomass was observed. Freundlich and Langmuir isotherm models were applied to experimental equilibrium data of metal ions adsorption and the value of RL for Co (II), Cr (III), Cd (II) and Pb (II) was found to be 0.639, 0.580, 0.915 and 0.949, respectively. The algae biomass was effectively used as a sorbent for removal of metal ions from aqueous solutions.
R. Akgul et al., "Biosorption of Heavy Metal Ions from Aqueous Solutions by Nonliving Scenedesmus Quadricauda Biomass," Fresenius Environmental Bulletin, vol. 21, no. 10, pp. 2922-2928, Parlar Scientific Publications, Jan 2012.
Materials Science and Engineering
Keywords and Phrases
adsorption; aqueous solution; biomass; cation; equilibrium; heavy metal; isotherm; numerical model; pH; pollutant removal, algae; Scenedesmus quadricauda
International Standard Serial Number (ISSN)
Article - Journal
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