Removal of Cadmium Chloride from Contaminated Residual Soil using Carbon Nanotubes (CNTs)

Rika Nuraini, Mohd. Raihan Taha, Noor Ezlin Ahmad Basri

Abstract


Industrial waste inorganic pollutants are normally produced from mineral compounds, such as for example heavy metals, salts, and minerals. These inorganic pollutants can be managed by selecting the appropriate removal techniques. By implementing the removal technique, the number of contaminants may decrease as pollutants reach the soils during certain reaction periods because of chemical reactions and sorption. These reactions depend on both the additive removal material in use, the soil and the environment's chemical characteristics. In soil contamination, reaction rates can be experimentally monitored, and the adsorption mechanism can be measured. The aim of this paper is to experimentally observe the mechanism of heavy metal removal of cadmium chloride in contaminated residual soils using carbon nanotube (CNT) adsorbent. In this research, a series of multi-wall carbon nanotube (MWCNTs) adsorption experiments were used to evaluate the adsorption of residual soil contaminants Cadmium chloride with a concentrations range of 50-200 mg / L. The tests were conducted with different weights of MWCNTs and a concentration of 50 to 200 mg / L of Cadmium Chloride contaminant. The temperature was thoroughly investigated on kinetics and the equilibrium of sorption contaminants in MWCNTs. It shows that MWCNT's can be used to remove heavy metal pollutants, evaluated based on the adsorption mechanism of Langmuir and Freundlich's isotherm models, from the contaminated residual soil as an effective adsorbent. As regards adsorbent models, the balance data in the Freundlich equation are reasonably proven compared to the Langmuir isotherm. As regards adsorbent models, the equilibrium data in the Freundlich equation are reasonably proven compared to the Langmuir isotherm.

Keywords


equilibrium isotherm; carbon nanotubes; adsorption mechanism; contaminated residual soil.

Full Text:

PDF

References


Tangahu. B. V., Abdullah. S. R. S., Basri. H., Idris. M.; Anuar. N., Muchlisin. M. (2011) A Review on Heavy Metals (As, Pb, and Hg) Uptake by Plants through Phytoremediation. Int, J. of Chem. Eng. 31p.

Alinnor, I. J. (2007) Adsorption of Heavy Metals Ion Aqueous Solution by Fly Ash, Fuel, 86, 853-857.

Manohar. D. M.; Neoline. B. F.; Anirudhan. T. S. (2006) Adsorption Performance of Al-pillared Bentonite Clay for the Removal of Cobalt (II) from Aqueous Phase. Appl. Clay. Sci., 31, 194-206.

Cannam, N,. Sundaram, M, M. (2001) Kinetic of Mechanism of Removal of Methylene Blue by Adsorption on Various Carbons-A Comparative Study. Dies Pigments, 51, 25-40.

Nuraini, R. and Taha, M.R. (2010). Adsorption Behavior of Phenol on Residual Soil- Multiwalled Carbon Nanotubes Mixtures. Proceedings of 2010 International Conference on Environmental Engineering and Applications, Singapore, 10-12 September 2010, p. 157-159.

Dai, H. Carbon nanotubes: synthesis, integration and properties. Account of chemical research 35(12): 1035-1044.

J.X.Wang, D.Q. Jiang, D.Q., Z.Y. Gu, and X.P. Yan, “Multiwalled carbon nanotubes coated fibers for solid-phase microextration of polybrominated diphenyl ethers in water and milk sample before gas chromatography with electro-capture detectionâ€, Journal of Chroatography A Vol.1137, No.1, pp. 8-14, 2016.

L. Mahdavian and M. Monajjemi,†Alcohol sensors based on SWNT as chemical sensors: Monte Carlo and Langevin dynamics simulationâ€, Microelectronics Journal, Vol.41, pp.142-149, 2010.

Z. Benmaamar and A. Bengueddach, “Correlation with different models for adsorption isotherms of m-xylene and toluene on zeolitesâ€â€™ Journal of Applied Sciences in Environmental Sanitation, Vol.2, No.2, pp.43-56, 2007.

K. Kumar and S. Sivanesan. “Sorption isotherm for safranin onto rice husk: comparison of linear and nonlinear methodâ€, Dyes Pigments, Vol.72, pp.130-133, 2007.

T.Y. Li, Z.T. Xiong, A novel response of wild-type duckweed (Lemna paucicostata Hegelm.) to heavy metals, Environ. Toxicol. 19 (2) (2004) 95-102.

Wenhua Hou, Xiao Chen, Guanling Song, Qunhui Wang, Chein Chi Chang. Effects of copper and cadmium on heavy metal polluted waterbody restoration by duckweed (Lemna minor). Plant Physiology and Biochemistry 45 (2007) 62-69.

W.X. Wang, R.C.H. Dei, Effects of major nutrient additions on metal uptake in phytoplankton, Environ. Pollut. 111 (2001) 233-240.

K. Foo, and B. Hameed. “Insight into the modelling of adsorption isotherm systemsâ€, Chemical Engineering Journal, Vol. 156, pp. 2 – 10, 2007.

D. Shao, Z. Jiang, X. Wang, J. Li, and Y. Meng, “Plasma induced grafting carboxymenthyl cellulose on multiwalled carbon nanotubes for the removal of UO+22 from aqueous solutionâ€, The Journal of Physics Chemistry B, Vol.113, No. 4, pp. 860-864, 2009.




DOI: http://dx.doi.org/10.18517/ijaseit.9.2.8614

Refbacks

  • There are currently no refbacks.



Published by INSIGHT - Indonesian Society for Knowledge and Human Development