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Kinetic studies for the biosorption of lead and copper ions by Penicillium simplicissimum immobilized within loofa sponge by Xiao-ming Li; De-xiang Liao; Xue-qin Xu; Qi Yang; Guang-ming Zeng; Wei Zheng; Liang Guo is a Environmental Science article available to read on EtoBox.
What is Kinetic studies for the biosorption of lead and copper ions by Penicillium simplicissimum immobilized within loofa sponge about?
Biosorption potential of Penicillium simplicissimum (Penicillium sp.) immobilized within loofa sponge (PSILS) for lead and copper from aqueous media was explored. The effects of pH, contact time and initial concentration were studied in batch experiments. The maximum uptake of metal ions was obtained at pH 5.0. Biosorption equilibrium was established by 60 min. The pseudo-first-order, pseudo-second-order and intraparticle diffusion kinetic models were applied to study the kinetics of the biosorption processes. The pseudo-second-order kinetic model provided the best correlation (R 2 > 0.999) of the experimental data compared to the pseudo-first-order and intraparticle diffusion kinetic models. The maximum heavy metal ions adsorbed was found to be 152.6 and 112.3 mg/g for Pb(II) and Cu(II), respectively. It was found that the biosorption of both Pb(II) and Cu(II) on PSILS was correlated well (R Pb 2 = 0.999 and R Cu 2 = 0.9978) with the Langmuir equation as compared to Freundlich isotherm equation under the concentration range studied. PSILS was regenerated by washing with a 100 mM solution of HCl. The desorption efficiency was as high as 98%. The PSILS was reused in five adsorption-
Who reads Kinetic studies for the biosorption of lead and copper ions by Penicillium simplicissimum immobilized within loofa sponge?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Xiao-ming Li; De-xiang Liao; Xue-qin Xu; Qi Yang; Guang-ming Zeng; Wei Zheng; Liang Guo
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)
- Published
- 2008
- Language
- EN
- Field
- Environmental Science (Physical Sciences)