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Assessing the Ability of Populus sp. Sawdust in Removal of Heavy Metals Pb(II), Ni(II) and Cr(III) from Wastewaters


Affiliations
1 Petroleum University of Technology, Abadan, Iran, Islamic Republic of
 

In this paper we study the ion adsorption of heavy metals Pb(II), Ni(II) and Cr(III) from wastewaters by poplar tree (Populus sp.) sawdust. For this purpose, first the wastewaters containing heavy metals were prepared in laboratory, and then by adding the sawdust to the medium, the ion adsorption by the particles of sawdust were investigated in different pH, contact times, and concentrations in wastewater. Our findings showed that with the increase of the pH value of synthetic wastewater, ion adsorption by sawdust particles was increased where in pH=5, it reached its maximum value. The highest rate of adsorption was observed in 200 mg/L concentration. Also, the adsorption rate was dependent on the type of metal. According to obtained results, the increase in the contact time raises the ion adsorption where the optimal contact time was 90 min.

Keywords

Heavy Metals, Wastewater, Sawdust, Populus Sp.
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  • Assessing the Ability of Populus sp. Sawdust in Removal of Heavy Metals Pb(II), Ni(II) and Cr(III) from Wastewaters

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Authors

Naghi Jadidi
Petroleum University of Technology, Abadan, Iran, Islamic Republic of
Mohsen Motavassel
Petroleum University of Technology, Abadan, Iran, Islamic Republic of

Abstract


In this paper we study the ion adsorption of heavy metals Pb(II), Ni(II) and Cr(III) from wastewaters by poplar tree (Populus sp.) sawdust. For this purpose, first the wastewaters containing heavy metals were prepared in laboratory, and then by adding the sawdust to the medium, the ion adsorption by the particles of sawdust were investigated in different pH, contact times, and concentrations in wastewater. Our findings showed that with the increase of the pH value of synthetic wastewater, ion adsorption by sawdust particles was increased where in pH=5, it reached its maximum value. The highest rate of adsorption was observed in 200 mg/L concentration. Also, the adsorption rate was dependent on the type of metal. According to obtained results, the increase in the contact time raises the ion adsorption where the optimal contact time was 90 min.

Keywords


Heavy Metals, Wastewater, Sawdust, Populus Sp.

References