The Fixed-bed Column Study for Heavy Metals Removal from the Wastewater by Poly Acrylamide-co-acrylic Acid/Clinoptilolite Nanocomposite

Author(s): Mojgan Zendehdel, Hamidreza Mohammadi*.

Journal Name: Nanoscience & Nanotechnology-Asia

Volume 8 , Issue 1 , 2018

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Graphical Abstract:


Introduction: The heavy metals toxic waste is an important problem for human health and life.

Materials and Method: The removal capacity of Pb (II) and Cd (II) ions in the aqueous solutions of the wastewater was investigated by using the poly acrylamide-co-acrylic acid/clinoptilolite (PAAC) nanocomposite in a fixed-bed column with the controlled time, adsorbent content, pH values, temperature and flow rate.

Result: The results showed that this nanocomposite had a great potential for removal of Pb (II) and Cd (II) (90-99 %) at the room temperature by the fixed-bed method when compared with the batch method (70-80%).

Conclusion: The adsorption data were fitted to the well-established fixed-bed adsorption model (Thomas model). The results showed well fitted to the Thomas model with a correlation coefficient, R2 ≥ 0.97. In conclusion, PAAC hydrogel can be proposed as a good, safe and efficient absorbent for elimination of Pb (II) and Cd (II) from wastewater.

Keywords: Poly acrylamide-co-acrylic acid/clinoptilolite, removal Pb (II) and Cd (II), heavy metals, continuous method, pollutant, fixed-bed column.

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Article Details

Year: 2018
Page: [67 - 74]
Pages: 8
DOI: 10.2174/2210681208666171214120031

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