Removal of Zn2+ and Cr6+from waste water Samples, using natural Iranian (Aftar) Zeolites

Authors

School of Earth Sciences, Damghan University, Damghan, Iran

Abstract

This paper concerns the removal of Zn2+ and Cr6+ ions from waste water using a naturally occurring zeolite from semnan region in Iran. A continuous fixed-column study was carried out by using zeolite as a low-cost adsorbent for the removal of Zn2+ and Cr6+ ions from aqueous solution under the effect of various process parameters such as, grain size and time. The efficiency of removal is higher for Zn than Cr ions. The Zn2+ and Cr6+ ions uptake by zeolite increased with initial ions concentration and column height, but decreased as the flow rate increased. The adsorption capacity reached a maximum at grain size of 0.71mm.

Keywords

References

  1. Barbier F., G. Due and M. Petit-Ramel,
  2. Adsorption of lead and cadmium ions
  3. from aqueous solution to the
  4. montmorilonite/ water interface, Colloid
  5. Surface PhysicochemEng Aspect, 166,
  6. ââ‚‌“159, 2000.
  7. Barer R.M., Zeolites and Clay Minerals as
  8. Sorbent and Molecular Sieves, Academic
  9. Press, New York,
  10. Breck D.W. and J. Chem. Edu. 41, 1964. 67
  11. Brigatti M. F., C. Lugli and L. Poppi, Kinetics of
  12. heavy metal removal and recovery in
  13. sepiolite, Appl. Clay. Sci., 16, 45ââ‚‌“57,
  15. Brown P. A., S. A. Gill and S. J. Allen. Metal
  16. removal from waste water using peat,
  17. Water Res. 34 (16), 3907ââ‚‌“3916,2000.
  18. Burns C. A., P. J. Class, I. H. Harding and R. J.
  19. Crawford, Adsorption of aqueous heavy
  20. metals onto carbonaceous substrate,
  21. Colloid Surface PhysicochemEng Aspect,
  22. , 63ââ‚‌“68, 1999.
  23. Chen D. and A. K. Ray, Removal of toxic metal
  24. ions from wastewater by semiconductor
  25. photocatalysis, Chem. Eng. Sci., 56,
  26. ââ‚‌“1570, 2001.
  27. Dayan, A. D. and A. J. Paine, 2001.
  28. "Mechanisms of chromium toxicity,
  29. carcinogenicity and allergenicity: review
  30. of the literature from 1985 to 2000."
  31. Human & Experimental Toxicology
  32. (9): 439-51.
  33. Eftekharnejad. J. Report of Zeolite mines
  34. exploration of Semnan province,
  35. industrial and mines organization of
  36. semnan province, 2004.
  37. Evans J. R., W. G. Davids, J. D. MacRae and A.
  38. Amirbahman, Kinetic of cadmium uptake
  39. by chitosan-based crab shells, Water
  40. Res,.36, 3219ââ‚‌“3226, 2002.
  41. Faur-Brasquet C., Z. Reddad, K. Yavuz O., Y.
  42. Altunkaynak and F. Guzel, Removal of
  43. copper, nickel, cobalt and manganese
  44. from aqueous solution by kaolinite, Water
  45. Res., 37, 948ââ‚‌“952, 2003.
  46. Garsia S. A., A. Alastuey and X. Querol, Heavy
  47. metal adsorption by different minerals:
  48. application to the remediation of polluted
  49. soils, Sci. Total. Environ.,242, 179ââ‚‌“188,
  51. Kadirvelu and P. Le Cloirec, Modeling the
  52. adsorption of metal ions (Cu2+, Ni2+, Pb2+)
  53. onto ACCs using surface complexation
  54. models, Appl. Surf. Sci. 196 (1ââ‚‌“4), 356ââ‚‌“
  55. , 2002.
  56. Karabult S., A. Karabahan, A. Denizli and Y.
  57. Yurum, Batch removal of copper(II) and
  58. zinc(II) from aqueous solution with lowrank
  59. Turkish coals, Separ. Purif.Tech.,
  60. , 177ââ‚‌“184 ,2000.
  61. Kazemian H. and H. Faghihian, Ninth article
  62. complex of IrrigationandDrainage Iran
  63. National Committee, 1998.
  64. IrrigationandDrainage Iran National
  65. emission, first edation.
  66. Mohan D. and K. P Singh, Single- and multicomponent
  67. adsorption of cadmium and
  68. zinc using activated carbon derived from
  69. bagasse ââ‚‌“ an agricultural waste, Water
  70. Res., 36, 2304ââ‚‌“2318, 2002.
  71. Pollard S. J. T., G. D. Fowler, C. J. Sollars and R.
  72. Perry, Low cost adsorbents for waste and
  73. wastewater treatment: A review, Sci.
  74. Total. Environ.,116, 31ââ‚‌“52, 1992.
  75. Sun T. and K. Seff, Chemical Reviews 94, 1994.
Journal of Chemical Health Risks

Volume 1, Issue 1
Summer 2011

Files

History

  • Receive Date: 28 September 2011
  • Revise Date: 02 December 2020
  • Accept Date: 29 October 2018

Share

How to cite

Statistics