Comparison of sorption efficiency of natural and MnO2 coated zeolite for copper removal from model solutions
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Date
2021
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IOP Publishing
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Abstract
Removal of heavy metals from the environment is important for living beings. The
present work investigates the applicability of the natural and MnO2 - coated zeolite as sorbent
for the removal of copper from synthetic solutions. Batch experiments were carried out to
identify the influence of initial pH and concentration in the process of adsorption. A maximum
removal efficiency of Cu(II) was observed in 10 mg/L for natural (95.6%) and modified
(96.4%) zeolite, where the values was almost identical, but at concentration of 500 mg/L was
the removal efficiency of modified zeolite three times higher. Based on the correlation factors
R2, the Langmuir isotherms better describe the decontamination process than Freundlich. The
optimum pH value was set at 5.0.
Keywords
MnO2, coated zeolite, synthetic solutions
Citation
M Balintova et al. Comparison of sorption efficiency of natural and MnO2 coated zeolite for copper removal from model solutions. 2021 IOP Conf. Ser.: Earth Environ. Sci. 900 012003