Evaluation of parameters affecting the rice husks performance on cyanide ion removal from wastewater
Abstract
This research is designed to investigate the Rice husk (RH) adsorption capability on cyanide ion (CN -) removal from wastewater. Several operating parameters were investigated in order to obtain the optimal removal efficiency using such agricultural by product media. The operation parameters were pH, initial concentration of the cyanide ion (Ci), adsorbent media height (Hm), Process time (tp), and Temperature (T) of the wastewater. The results showed that the removal efficiency could reach 97 % at the optimum operating conditons. Removal efficiency increased with increasing of adsorbent media height, increasing of pH also shows increasing in removal efficiency till pH 7 and then decreased slowly. Increasing temperature has a good effect on enhancing removal efficiency but such effect weakens when temperature exceeds 40oC. For process time the removal efficiency shows steep increasing rate till 40 min and then the rate slowed down. Removal efficiency decreased rapidly with increasing of initial concentration (Ci ≤ 20 mg/l), then it shows slower decreasing rate.
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[2] Abdoul-Raïmi Bouari. (2012) ((Bioremediation of cyanide contaminated water)), Thesis of Master in Water and Environmental Engineering, Tuskegee University, Tuskegee, Alabama, United States.
[3] Saxena, S., Prasad, M., Amritphale, S.S. and Chandra, N. (2001) ((Adsorption of cyanide from aqueous solutions at pyrophyllite surface)). Separation and Purification Technology 24, 263–270.
[4] Ghanizadeh, Gh. and Asgari, G. (2011) ((Adsorption kinetic and isotherm of methylene blue and its removal from aqueous solution using bone charcoal)). Reaction Kinetics, Mechanisms and Catalysis 102, 127-142.
[5] Mohammed Nsaif Abbas, Aseel Adnan Husain, and Firas Saaed Abaas. (2013) (( Phenol emoval from wastewater using rice husk)). Diyala Journal for Pure Sciences Vol: 9 No:4.
[6] Hengpeng Ye, Lin Zhang, Beiping Zhang, Guomin Wu, Dongyun Du. ( 2012) ((Adsorptive removal of Cu(II) from aqueous solution using modified rice husk)). Vol. 2, Issue 2, Mar-Apr 2012, pp.855-863.
[7] Lashkenari, M.S., Davodi, B., and Eisazadeh,H.,(2011) (( Removal of arsenic from aqueous solution using polyaniline/rice husk nanocomposite)). Korean J. Chem. Eng.,28(7), 1532-1538.
[8] Taha, M.,F., Kiat, C.,F., Shaharun, M.,S., and Raml, A.,(2011) ((Removal of Ni(II), Zn(II) and Pb(II) ions from Single Metal Aqueous Solution using Activated Carbon Prepared from Rice Husk)), World Academy of Science, Engineering and Technology 60.
[9] Ranjan, D., Talat, M., and Hasan, S., H., (2009), (( Biosorption of arsenic from aqueous solution using agricultural residue ‘rice polish’)) , Journal of Hazardous Materials 166, 1050–1059.
[10] Benita E. Manipula, Emma R. Suplido, and Nhilda M. Astillero, (2001), ((Standard operating procedures for cyanide tesing used by the Philippines cyanide detection test (CDT) laboratory network)). Philippine Department of Agriculture-Bureau of Fisheries And Aquatic resources/International Marinelife Alliance, September 5, 2001.
[11] Yashbir S. Verma, Ishwar Singh, B. S. Garg, and R. P. Singh, (1979), (( Spectrophotometric determination of cyanide ions through ligand exchange reaction in solution)), Microchimica Acta, September 1979, Volume 71, Issue 5, pp 445-451.
[12] S. Naeem , U. Zafar and T. Amann, (2011) ((Adsorption Studies of Cyanide (CN)- on Rice Husk Ash (RHA))), Bangladesh J. Sci. Ind. Res. 46(1),101-104, 2011.
[13] H. A. Shilajyan, (2013), ((Electrical conductivity of potassium salt – dimethylsulfoxide – water system at different temperatures)). Proc. of the Yerevan State Univ. Chemistry and Biology, 2013,NO1, p. 3–6.
[14] Hasfalina Che Man, Wei Hong Chin, Maryam Rahmati Zadeh, and Mohd Rashid Mohd Yusof, (2012) ((Adsorption potential of unmodified rice husk for boron removal)). BioResouces 7(3) 3810- 3822.
[15] Aseel M. Aljeboree, Abbas N. Alshirifi, Ayad F. Alkaima, (2014), ((Kinetics and equilibrium study for the adsorption of textile dyes on coconut shell activated carbon)), Arabian Journal of Chemistry, 28 January 2014.
[16] Ünal Geçgel, Gülce Özcan, and Gizem Çağla Gürpınar, (2013) ((Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum))), Journal of Chemistry, Volume 2013 (2013), Article ID 614083, 9 pages.
