Removal of heavy metals from wastewater by using dimethylglyoxime ligand

Yıl 2018, Cilt 31, Sayı 1, 22 - 26, 30.03.2018

Arash ALIZADEH YEGANI Gülüzar Özbolat2 GÜLÜZAR ÖZBOLAT2 Abdullah TULI

Öz

Oximes constituted an important ligand group of coordination chemistry, have amphoteric property and compose of azomethine (>C=N-) and (-OH) groups. The complexes of transition metals with oxime ligands have been extensively studied in recent years. In this study we investigate the removal of Pb²⁺, Fe³⁺ and Zn²⁺ from wastewater using dimethylglyoxime (oxime) ligand. In these studies, dimethylglyoxime ligand formed complexes by reaction with high concentrations of iron, lead and zinc ions at physiological pH and room temperature. The obtained complexes are a water-soluble even in high concentration. The resulting complexes were analyzed by Fourier-transform infrared spectroscopy (FT-IR) and elemental analysis. The remaining metals were determined by Inductively Coupled Plasma-Mass Spectrometer (ICP-MS). According to ICP-MS results, concentrations of metals were dropped to 5 ppm for Pb, 4 ppm for Hg and 2.5 ppm for Fe from 50 ppm. The FT-IR spectrum showed that the peaks of ligand shifted and new peaks of metal-ligand formed after complexation. These results showed that Pb²⁺, Fe³⁺ and Zn²⁺ ions in certain concentration known in waste water and formed a complexes with dimethylglyoxime ligand.

Anahtar Kelimeler

Wastewater, Dimethylglyoxime, Ligand, Oxime

Kaynakça

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