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Experimental investigation on removal of heavy metals (Cu2+, Pb2+, and Zn2+) from aqueous solution by flax fibres

Abstract : This study was carried out to examine the adsorption capacity of the flax fibres tows (FFT) adsorbent for the removal of heavy metals from aqueous solution using batch-adsorption techniques. The influence of contact time, pH, initial concentration and adsorbent quantity on the adsorption process was studied. Results revealed that adsorption rate increased rapidly, and the optimal removal efficiency was reached within 60 min. The adsorption isotherms could well be fitted by the Langmuir model. The RL value in the present investigation was less than one, indicating that the adsorption of the metal ions onto FFT is favourable. After treatment of the aqueous solution with FFT, the levels of heavy metals were observed to decrease with 97.4% for lead, 79% for copper, and 73.28% for zinc. These results indicate that the FFT can be used without specific treatment and are economically viable for the removal of metal ions. We are currently investigating the use of FFT as a bio-based material for the treatment of runoff water in urban zone.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-01928778
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Submitted on : Tuesday, November 20, 2018 - 5:26:09 PM
Last modification on : Thursday, July 2, 2020 - 3:28:46 AM

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Bouamama Abbar, Abdellah Alem, Stéphane Marcotte, Anne Pantet, Nasre-Dine Ahfir, et al.. Experimental investigation on removal of heavy metals (Cu2+, Pb2+, and Zn2+) from aqueous solution by flax fibres. Process Safety and Environmental Protection, Elsevier, 2017, 109, pp.639-647. ⟨10.1016/j.psep.2017.05.012⟩. ⟨hal-01928778⟩

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