Treatment of effluents from jewellery industries by using activated carbons prepared from Epiphyllum oxypetalum (Cactace) wastes.
J. Environ. Nanotechnol., Volume 3, No 2 (2014) pp. 122-129
Abstract
Epiphyllum oxypetalum is a species of cactus and one of the most commonly grown of the Epiphyllum species. It is one of the under-utilized resources available in the tropical regions of the globe and can be used as a substitute for digitalis. The Shoshone Indian tribe calls the night blooming Cereus-Pain in the heart and used it for heart pain. Scanty work was reported on the phytochemical properties of leaf extract and no documented research work was reported on its leaf and flower for assessment of adsorption studies. Thus the present investigation was carried out to access the adsorptive studies of plant wastes. The activated carbons was prepared Epiphyllum oxypetalum waste by H3PO4 activation. The adsorption kinetics of jewellery effluents was studied by the activated carbons, which are suitably described by simple kinetic models, pseudo first order and pseudo second order equations. The optimum temperature was found to be 300 °C and the adsorption data fitted well onto Freundlich, Langmuir and Tempkin adsorption isotherm models. The high surface area of activated carbons were demonstrated to be promising adsorbents for pollution control and for other applications.
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Reference
Demopoulos, G. P. and Chen, T. C., A case study of CIP tails slurry treatment comparison of cyanide recovery to cyanide destruction. Eur. J. Miner. Proc. Environ. Protect. 4 (1),1-9 (2004).
Dubinin, M. M., The Potential Theory of Adsorption of Gases and Vapors for Adsorbents with Energetically Nonuniform Surfaces. Chem. Rev., 60: 235-241 (1960).
http://dx.doi.org/10.1021/cr60204a006
Gregg, S. J and Sing, K. S. W., Adsorption,Surface Porosity. 2nd Edition, Academic Press, London (1982).
Johnson, W. D., US Patent 522, 260 (1894).
Jones, W. G. Klauber, C. and Linge, H. G., Fundamental aspects of gold cyanide adsorption on activated carbon. World Gold’89. SME, Littleton, Co, pp. 278-281 (1988).
Jones, W. G. Klauber, C. and Linge, H. G., The adsorption of gold cyanide onto activated carbon. Randol Gold Forum’88 Perth. Randol International, Golden, Co., 243-248 (1988).
Khattri, S. D and Singh, M. K., Adsorption of Basic Dyes from Aqueous Solution by Natural Adsorbents. Ind. J. Chem. Technol., 6: 112-116 (1999).
Laine, J., Calafat, A. and labady, M., Preparation and characterization of activated carbons from coconut shell impregnated with phosphoric acid, Carbon., 27(2), 191-195 (1989).
http://dx.doi.org/10.1016/0008-6223(89)90123-1
Lartey R. B., Acquah, F. and Nketia, K. S ., Developing National Capability for Manufacture of Activated Carbons from agri Wastes. Ghana Engineer., 76, (1999)
Le Roux, J. D., Bryson, A. W. and Young, B. D., A comparison of several kinetic models for the adsorption of gold cyanide onto activated carbon. J. South Afr. Inst. (1991)
Mangun and Daley., Effect of pore size on adsorption of hydrocarbons in phenolic based activated carbon fibres, Carbon., 36(1-2),123-298 (1998).
http://dx.doi.org/10.1016/S0008-6223(97)00169-3
Marsden, J. and House, I., The Chemistry of gold extraction, Series in Metals and Associated Materials. Ellis Horwood Limited, New York (1993).
Molina-Sabio, M., RodRíguez-Reinoso, F., Caturla, F. and Sellés, M. J., Porosity in granular carbons activated with phosphoric acid, Carbon., 33,1105-1113 (1995).
http://dx.doi.org/10.1016/0008-6223(95)00059-M
Muir, D. M., Recovery of gold from cyanide solutions using activated carbon: A review. In: Carbon in pulp technology for the extraction of gold , 1982, Aus. IMM, Melbourne, pp, 7-22(1982).
Newman, D. J. and Cragg, G.M., Natural products as sources of new drugs over the last 25 years. J. Nat. Prod., 70(3), 461-477 (2007).
http://dx.doi.org/10.1021/np068054v
Nicol, M. J., Fleming, C. A. and Cromberge, G., The adsorption of gold cyanide onto activated carbon. 1. The kinetics of adsorption from pulps, J. South Afr. Inst. Min. Metall. 84, 50-54 (1984a).
Nicol, M. J., Fleming, C. A. and Cromberge, G., The adsorption of gold cyanide onto activated carbon. 2. Application of the kinetic model to multistage adsorption circuits. J. South Afr. Inst. Min. Metall.. 84, 50-54 (1984b).
Pelekani and Snoeyink Competitive adsorption in natural wayer: Role of activated carbon pore size, Water Res., 33(5), 1209-1219 (2001).
Pleysier, R., Dai, X., Wingate, C. J, and Jeffrey, M. I., Microtomography based identification of gold adsorption mechanisms, the measurement of activated carbon activity, and the effect of frothers on gold adsorption. Miner. Eng. 21, 453-462 (2008).
http://dx.doi.org/10.1016/j.mineng.2007.12.007
Rodriguez-Reinoso, F., LinaresSolano, A., Lopez-Gonzalez, D. J., De, J. and Molina Sabio, M., Activated Carbon from Almond Shells as Adsorbents in Gas and Liquid Phases. J. Chem. Biotechnol., 30, 65-72 (1980).
Suárez-GarcıÌa, F., MartıÌnez-Alonso, A. and Tascón, J. M. D., Porous texture of activated carbons prepared by phosphoric acid activation of apple pulp, Carbon., 39(7), 1111-1115 (2001).
http://dx.doi.org/10.1016/S0008-6223(01)00053-7
Suárez-GarcıÌa, F., MartıÌnez-Alonso, A. and Tascó, J. M. D., Pyrolysis of apple pulp: chemical activation with phosphoric acid, J. Anal. Appl. Pyrol., 3(2), 283-301 (2002).
http://dx.doi.org/10.1016/S0165-2370(01)00160-7
Yu, J. J. and Chou, S. Y., Contaminated site remedial investigation and feasibility removal of chlorinated volatile compounds from ground water by activated carbon fiber adsorption. Chemosphere., 41(3), 371-378 (2000).
http://dx.doi.org/10.1016/S0045-6535(99)00437-3
Zadra, J.B. Engel, A.L. Heinen, H.J. RI 4843, US Bureau of Mines (1952).
