Korean Journal of Chemical Engineering, Vol.28, No.1, 149-155, January, 2011
Removal of methylene blue dye from aqueous solution by activated carbon prepared from cashew nut shell as a new low-cost adsorbent
E-mail:
Methylene blue dye was adsorbed on an adsorbent prepared from cashew nut shell. A batch adsorption study was carried out with variable adsorbent amount, initial dye concentration, contact time and pH. Studies showed that the pH of aqueous solutions affected dye removal as a result of removal efficiency increased with increasing solution pH. The experimental data were analyzed by the Langmuir, Freundlich, Redlich-Peterson, Koble-Corrigan, Toth, Temkin, Sips and Dubinin-Radushkevich models of adsorption using MATLAB 7.1. The experimental data yielded excellent fits within the following isotherm order: Redlich-Peterson>Toth>Sips>Koble-Corrigan>Langmuir>Temkin>Dubinin-Radushkevich>Freundlich, based on its correlation coefficient values. Three simplified kinetic models including a pseudofirst-order, pseudo-second-order and intraparticle diffusion equations were selected to follow the adsorption process. It was shown that the adsorption of methylene blue could be described by the pseudo-second-order equation. The results indicate that cashew nut shell activated carbon could be employed as a low cost alternative to commercial activated carbon in the removal of dyes from wastewater.
- Padmesh TVN, Vijayaraghavan K, Sekaran G, Velan M, Dyes Pigm., 71, 77 (2006)
- Ho YS, Chiang TH, Hsueh YM, Process Biochem., 40, 119 (2005)
- Reife A, Dyes, Environmental Chemistry, Kirk-Othmer Encyclopedia of Chemical Technology, 4th Ed. Washington, John Wiley & Sons, 753 (1993)
- Pagga U, Braun D, Chemosphere., 15, 479 (1986)
- Vadivelan V, Kumar KV, J. Colloid Interface Sci., 286(1), 90 (2005)
- Garg VK, Amita M, Kumar R, Gupta R, Dyes Pigm., 63, 243 (2004)
- Sanghi R, Bhattacharya B, Color Technol., 118, 256 (2002)
- Meshko V, Markovska L, Mincheva M, Rodrigues AE, Water Res., 35, 3357 (2001)
- Malik PK, Dyes Pigm., 56, 239 (2003)
- Goyal M, Singh S, Bansal RC, Carbon Science., 5, 170 (2004)
- Bangash FK, Manaf A, J. Chem. Soc. Pak., 26, 111 (2004)
- Lorenc-Grabowska E, Gryglewicz G, Dyes Pigm., 68, 1 (2006)
- Namasivayam C, Kavitha D, Dyes Pigm., 54, 47 (2002)
- Teng RL, Wu FC, Juang RS, Carbon., 41, 487 (2003)
- Singh BK, Rawat NS, J. Chem. Technol. Biotechnol., 61(4), 307 (1994)
- Wu FC, Tseng RL, Juang RS, J. Hazard. Mater., B69, 287 (1999)
- Rajeshwarisivaraj, Sivakumar S, Senthilkumar P, Subburam V, Bioresour. Technol., 80(3), 233 (2001)
- Tsai WT, Chang CY, Lin MC, Chien SF, Sun HF, Hsieh MF, Chemosphere., 45, 51 (2001)
- Senthilkumaar S, Varadarajan PR, Porkodi K, Subbhuraam C, J. Colloid Interface Sci., 284(1), 78 (2005)
- Avom J, Mbadcam JK, Noubactep C, Germain P, Carbon., 35, 365 (1997)
- Yalcin N, Sevinc V, Carbon., 38, 1943 (2000)
- El-Sheikh AH, Newman AP, J. Anal. Appl. Pyrol., 71, 151 (2004)
- Girgis BS, El-Hendawy AA, Micropor. Mesopor. Mater., 52, 105 (2002)
- Aygun A, Yenisoy-Karakas S, Duman I, Micropor. Mesopor. Mater., 66, 189 (2003)
- Hameed BH, Ahmad AL, Latiff KNA, Dyes Pigm., 75, 143 (2007)
- Attia AA, Girgis BS, Fathy NA, Dyes Pigm., 76, 282 (2008)
- Tan IAW, Ahmad AL, Hameed BH, Desalination, 225(1-3), 13 (2008)
- Khaled A, El Nemr A, EI-Sikaily A, Abdelwahab A, Desalination, 238(1-3), 210 (2009)
- El-Halwany MM, Desalination, 250(1), 208 (2010)
- Sing KS, Everett DH, Haul RAW, Moscou L, Pierotti RA, Rouquerol J, Pure Appl. Chem., 57, 603 (1985)
- Wang SB, Li L, Wu HW, Zhu ZH, J. Colloid Interface Sci., 292(2), 336 (2005)
- Hameed BH, Mahmoud DK, Ahmad AL, J. Hazard. Mater., 158(1), 65 (2008)
- Wong Y, Yu J, Water Res., 33, 3512 (1999)
- Langmuir I, J. Amer. Chem. Soc., 40, 1361 (1918)
- Freundlich HMF, J. Phys. Chem., 57, 385 (1906)
- Redlich O, Peterson DL, J. Phys. Chem., 63, 1024 (1959)
- Koble RA, Corrigan TE, Ind. Eng. Chem., 44, 383 (1952)
- Toth J, Acta Chim. Acad. Sci. Hung., 69, 311 (1961)
- Temkin MJ, Pyzhev V, Acta Physicochim. URSS., 12, 217 (1940)
- Volesky B, Hydrometallurgy., 71, 179 (2003)
- Dubinin MM, Radushkevich LV, Chem. Zentr., 1, 875 (1947)
- Lagregren S, Kungl. Sven. Veten. Akad. Handl., 24, 1 (1898)
- Ho YS, McKay G, Process Biochem., 34(5), 451 (1999)
- Weber WJ, Morriss JJC, J. Sanit. Eng. Div. Proc. Am. Soc.Civ. Eng., 89, 31 (1963)