Removal of heavy metals from wastewater by using dimethylglyoxime ligand

Abstract

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.

Keywords

• Wastewater,Dimethylglyoxime,Ligand,Oxime

References

1. Adhoum N., Monser L., Bellakhal N. 2004. Treatment of electroplating wastewater containing Cu2+, Zn2+ and Cr(VI) by electrocoagulation. Journal of Hazardous Materials, 30: 112(3): 207-13. Araujo C.R.M., Gonsalves AA. 2015. Araujo CRM., Gonsalves AA. 2015. Revista Virtual Quimica. Revista Virtual Quimica, 7(4): 1469-1495. Azimi A., Azari A., Rezakazemi M., Ansarpour M. 2017. Removal of heavy metals from industrial wastewaters: a review. ChemBioEng Reviews, 4(1): 37-59. Bradley D.C., Mehrotra R.C., Rothwell I.P., Sing A. 2001. Alkoxo and aryloxo derivatives of metals. Academic Press, London. Brusick D. 1993. Genotoxicity of phenolic antioxidants. Toxicology and Industrial Health, 9(1-2): 223-30. Chang E.L., Simmers C., Knight D.A. 2010. Cobalt complexes as antiviral and antibacterial agents. Pharmaceuticals, 3: 1711-1728. Fu F., Wang Q. 2011. Removal of heavy metal ions from wastewaters: A review. Journal of Environmental Management, 92(3): 407-418. Gautam R.K., Mudhoo A., Lofrano G., Chattopadhyaya MC. 2014. Biomass-derived biosorbents for metal ions sequestration: Adsorbent modification and activation methods and adsorbent regeneration. Journal of Environmental Chemical Engineering, 2(1): 239-59. Gautam R.K., Mudhoo A., Lofrano G., Chattopadhyaya MC. 2014. Biomass-derived biosorbents for metal ions sequestration: Adsorbent modification and activation methods and adsorbent regeneration. Journal of Environmental Chemical Engineering, 2(1): 239-59. Hierso J.C., Bouwman E., Ellis D.D., Cabero M .P., Reedijk A., Spek A.L. 2001. Cobalt(II) aldoxime complexes stabilised by halide hydrogen bonding: crystal structures of [Co{HON C(H)(Me)}4X2] (X=Cl or Br) and [Co{HON C(H)(Pr)}4Cl2]. Journal of the Chemical Society, Dalton Trans, 197-201. Holt PK., Barton GW., Mitchell CA. 2005. The future for electrocoagulation as a localised water treatment technology. Chemosphere, 59(3): 355-67. Hunsom M., Pruksathorn K., Damronglerd S. 2005. Electrochemical treatment of heavy metals (Cu2+, Cr6+, Ni2+) from industrial effluent and modeling of copper reduction. Water Research, 39: 610-616. Karabocek N., Karabocek S. 1999. Polymeric copper(II) and nickel(II) complexes of a tetraoxime containing a binucleating macrocycle ligand. Transition Metal Chemistry, 24-84-8. Kufelnicki A., Fritsky I.O., Sliva T.Y., Golovaneva I.F., Lampeka R.D. 2007. Stereoselective synthesis of cobalt(III) anionic complexes with chiral pyruvylaminoacid oximes and metal–ligand interactions in aqueous solution. Polyhedron, 26 (12): 2894-2900. Kurniawan T.A., Chan G.Y.S., Lo W.H., Babel S. 2006. Physicochemical treatment techniques for wastewater laden with heavy metals. Chemical Engineering, 118: 83-98. Ponomareva V.V., Dalley N.K., Xiaolan K., Gerasimchuk N.N., Domasevich K.V. 1996. Synthesis, spectra and crystal structures of complexes of ambidentate C6H5C(O)C(NO)CN. Journal of the Chemical Society, Dalton Trans., 2351-2359. Shaker SA. 2010. Preparation and Spectral Properties of Mixed-Ligand Complexes of VO(IV), Ni(II), Zn(II), Pd(II), Cd(II) and Pb(II) with Dimethylglyoxime and N-Acetylglycine. E-Journal of Chemistry, 7 (1): 580-586. Singh B.K., Jetley U.K., Sharma R.K., Garg B.S. 2007. Synthesis, characterization and biological activity of complexes of 2-hydroxy-3, 5-dimethylacetophenoneoxime (HDMAOX) with copper (II), cobalt (II), nickel (II) and palladium (II), Spectrochim Acta, 68: 63-73. Tang W.W., Zeng G.M., Gong J.L. 2014. Impact of humic/fulvic acid on the removal of heavy metals from aqueous solutions using nanomaterials: a review. Science of the Total Environment, 468: 1014-27. Toma H.E. 2013. Quimica de coordenaçao, organometalica e catalise. Coleçao de Química Conceitual. Editora Blucher, Sao Paulo. Trendafilova G.N., Santiago L.R., Sodupe M. 2005. Coordination Properties of the Oxime Analogue of Glycine to Cu(II). The Journal of Physical Chemistry A, 109(25): 5668-567.