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REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
ISSN Online 2668-8212
ISSN Print: 1582-9049
ISSN-L: 1582-9049

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Revista de Chimie (Rev. Chim.), Year 2015, Volume 66, Issue 7,





FIRAS HASHIM KAMAR, AURELIA CRISTINA NECHIFOR,MOHANAD JASIM MOHAMMED RIDHA, MUSTAFA BASIM MOHAMMED ALTAIEEMI, GHEORGHE NECHIFOR .
Study on Adsorption of Lead Ions from Industrial
Wastewater by Dry Cabbage Leaves

Abstract:

In this study, cabbage leaves waste was used as an adsorbent for removal of Pb(II) ions from aqueous solutions using batch equilibrium process. The initial concentrations of Pb(II) ions were varying between 10 to100 mg/L, temperature was 25 ±2 C o, and agitation speed was 200 rpm for all experiments. The influence of pH, contact time, adsorbent dosage and particles diameter of adsorbed material on adsorption process were investigated. The experiments showed that highest removal rate was 95.67% at solution of pH 6, contact time 120 min, adsorbent dosage 0.5 g per 50 mL of solution, adsorbent particles diameter 1 mm and initial concentration of 50 mg/L. It was found that Langmuir model is better than Freundlich model. Two simplified kinetic models including pseudo-first-order and pseudo-second-order equations were selected to follow the adsorption process. Results showed that the adsorption of Pb(II) ions could obey pseudo-second order equation. Keywords: Batch adsorption, cabbage leaves, heavy metals, lead ions

Issue: 2015, Volume 66, Issue 7
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