IJEP 42(10): 1247-1253 : Vol. 42 Issue. 10 (October 2022)
1. University Ahmed Draia-Adrar, Route Nationale No. 6, 01000 Adrar, Algeria
2. Bejaia University, Department of Civil Engineering, Faculty of Technology, 06000, Algeria
Abstract
This study was carried out to examine the adsorption capacity by using date palm fibers (DPF) for the removal of heavy metals from aqueous solution using beach tests. In the adsorption process, the effects of contact time, pH, initial concentration and adsorbent quantity were investigated. The results demonstrated that the biosorption capacity of heavy metals by DPFs was in the following order: Pb > Cu > Zn. And that the adsorption efficiency increases rapidly and that the optimum removal efficiency was reached within 25 min. The Langmuir model describes well the adsorption isotherms. The value of RL in the present study was less than one, indicating that the adsorption of the metal ion on the DPF is favourable. After treatment of the aqueous solution with DPF, a decrease in the levels of heavy metals in the solution was observed, with 98.60% for lead, 93.11% for copper and 83.66% for zinc. Date palm fibers are a promising environmental material that can be used without specific treatment and are economically viable for removal of heavy metals from wastewater.
Keywords
Adsorption, Water, Date palm fibers, Kinetics, Heavy metals
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