9th International Science Congress (ISC-2019).  International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Removal of Cadmium from Wastewater using low cost Natural Adsorbents

Author Affiliations

  • 1 Material research Directorate, Ministry of Science and Technology, Baghdad, IRAQ

Int. Res. J. Environment Sci., Volume 4, Issue (6), Pages 11-15, June,22 (2015)


Adsorption is one of the effective techniques for heavy metals removal from wastewater. Removal of cadmium ion from aqueous solutions was studied using mixture of low cost material silica gel and calcium carbonate at different mole ratio. Influence of contact time, ph, initial concentration of metal ion, dosage of solid, ratio of SiO:CaCO and particle size of adsorbent on removal percentage were investigated. Experiments were carried out at room temperature. In present study, the optimum parameters required for maximum adsorption determined as follows: Contact time=120 minutes, pH=9, initial concentration of Cd2+= 105 ppm, ratio of SiO:CaCO= 1:3 adsorbent dosage =10 gm/L.


  1. Gupta K., Gupta M. and Sharma S., Process development for the removal of the lead and chromium from aqueous solution using red mud-an aluminum industry waste, Water Res.,35(5), 1125-1134 (2001)
  2. Renge V., Khedkar S. and Pande S., Removal of heavy metals from wastewater using low cost adsorbents: A review, Sci. Revs. Chem. Commun., 2(4), 580-584 (2012)
  3. Kadirvelu K., Thamaraiselvi K. and Namasivayam C., Removal of heavy metal from industrial wastewaters by adsorption onto activated carbon prepared from an agricultural solid waste, Bioresour. Technol., 76, 63-65 (2001)
  4. Esalah O., Weber M.E. and Vera J.H., Removal of lead, cadmium and zinc from aqueous solutions by precipitation with sodium di(n-octyl) phosphinate, Can. J. Chem. Eng.,78, 948-954 (2000)
  5. Kang K.C., Kim S.S., Choi J.W. and Kwon S.H., Sorption of Cu2+ and Cd2+ onto acid and base pretreated granular activated carbon and activated carbon fiber samples, J. Ind. Eng. Chem., 14, 131-135 (2008)
  6. Chan W.C. and Fu T.P., Adsorption/ion–exchange behaviour between a water insoluble cationic starch and 2-chlorophenol in aqueous solution, J. Appl. Polym. Sci., 67, 1085-1092 (1998)
  7. Fahim N.F., Barsoum B.N. and Eid A.E., Removal of chromium (III) from Tannery Wastewater using activated carbon from sugar industrial waste, J. Hazard. Mater., 136(2), 303-337 (2001)
  8. Song Z., Williams C.J. and Edyvean R.G.J., Treatment of Tannery Wastewater by chemical coagulation, Desalination, 164, 249-259 (2004)
  9. Fabianil C., Rusciol F., Spadonil M. and Pizzichini M., Chromium (III) salts recovery process from Tannery Wastewaters, Desalination, 108, 183-191 (1996)
  10. Sari A., Tuzen M. and Soylak M., Adsorption of Pb(II) and Cr(III)from aqueous solution on Celtic clay. J. Hazard. Mater., 144,41-46 (2007)
  11. Akar T.Z., Kaynak S., Ulusoy D., Yuvaci G. and Akar O., Enhanced biosorption of nickel(II) ions by silica gel – immobilized waste biomass: biosorption characteristics ,in batch and dynamic flow mode, J. Hazard. Mater., 163, 1134-1141 (2009)
  12. Bailey S., Olin T.J., Bricka R. and Adrian D.D., A Review of potentially low cost sorbents for heavy metals, Water Res., 33(11), 2469-2479 (1999)
  13. Mohana D. and Pittman Jr C.U., Arsenic removal from water: wastewater using adsorbents, A critical review, J. Hazard. Mater., 142(1-2), 1-53 (2007)
  14. Singanan M., Removal of lead (II) and cadmium (II) ions from wastewater using activated biocarbon, Sci. Asia, 37,115-119 (2011)
  15. Saeed A., Akhter M.W. and Iqbal M., Removal and recovery of heavy metals from aqueous solution using papaya wood as a new biosorbent, Sep. Purif. Technol., 45, 25-31 (2005)
  16. Pavasant P., Apiratikul R., Sungkhum V., Suthiparinyanout P. and Marhaba T., Biosorption of Cu(II), Cd(II), Pb(II) and Zn(II) using dried marine green macro algae caulerpa lentitifera, Bioresour. Technol., 97, 2321-2329 (2006)
  17. Lui Y., Chang X., Gue Y. and Meng S., Biosorption and preconcentration of lead and cadmium on waste Chinese herb pang DA Hai, J. Hazard. Mater., 135(1-3), 389-394 (2006)