Air Oxidation of Aqueous Cyanides in a Countercurrent Fixed Bed Reactor

Ahmet Alicilar; Melih K"om"urc"u; Atilla Murathan

Korean Journal of Chemical Engineering, Vol.19, No.2, 273-276, March, 2002

DOI10.1007/BF02698413 Export Citation

Air Oxidation of Aqueous Cyanides in a Countercurrent Fixed Bed Reactor

Ahmet Alicilar^†, Melih K"om"urc"u¹, and Atilla Murathan¹

Chemical Engineering Department, Gazi University, Maltepe, 06570, Ankara, Turkey
¹Faculty of Engineering and Architecture, Gazi University, Maltepe, 06570, Ankara, Turkey

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This study was conducted to discuss the removal of cyanides from water by air oxidation. Experiments were carried out in a countercurrent fixed bed reactor for three different values of temperature, concentration, gas and liquid flow rates. It was operated at pH 12 by using delrin (formaldehyde polymer) as packing material. Effects of some operating parameters on the conversion were studied, and it was observed that the conversion percent increased by increasing temperature and decreasing gas and liquid flow rates. Effect of concentration was not steady. A conversion of 89% was achieved under optimum conditions while it ranges from 44 to 79% at room temperature.

Keywords:Cyanide;Oxidation;Fixed Bed Reactor;Water Pollution

[References]

Alam M, Kamath S, Environ. Sci. Technol., 32(24), 3986 (1998)
Alicilar A, Bicer A, Murathan A, Chem. Eng. Commun., 128, 95 (1994)
Basheer S, Kut OM, Prenosil JE, Bourne JR, Biotechnol. Bioeng., 41, 465 (1993)
Borbely GJ, Cliff C, Devuyst EA, Ettel VA, Mosoiu MA, Schitka KJ, U.S. Patent, 4,537,686 (1985)
Devuyst EA, Robbins G, Vergunst R, Tandi B, Iamarino PF, Mining Eng., 2, 205 (1991)
Gaudy AF, Gaudy ET, Feng YJ, Brueggemann YG, JWPCF, 54(2), 153 (1982)
Gurol MD, Bremen WM, Environ. Sci. Technol., 19(9), 804 (1985)
Ho SP, Wang YY, Wan CC, Water Res., 24(11), 1317 (1990)
Horowitz GI, Martinez O, Cukierman AL, Cassanello MC, Catal. Today, 64(3-4), 347 (2001)
Kim SJ, Hwang KR, Cho SY, Moon H, Korean J. Chem. Eng., 16(5), 664 (1999)
Komurcu M, "Oxidation of Cyanide in Water in Packed Column," M.S. Thesis, Gazi University, Ankara, Turkey (1999)
Matatov-Meytal YI, Sheintuch M, Ind. Eng. Chem. Res., 37(2), 309 (1998)
Pak D, Chang W, Environ. Technol., 18(5), 557 (1997)
Pamuk V, Yilmaz M, Alicilar A, J. Chem. Technol. Biotechnol., 76(2), 186 (2001)
Park YH, Kim SJ, Kang SC, Korean J. Chem. Eng., 17(1), 81 (2000)
Sharma VK, Rivera W, Smith JD, Brandon B, Environ. Sci. Technol., 32(17), 2608 (1998)
Walsht F, Wilson G, Trans. IMF, 64, 55 (1986)
Xiao Q, Cheng ZM, Jiang ZX, Anter AM, Yuan WK, Chem. Eng. Sci., 56(3), 1189 (2001)

[Referenced By]

[1] Alam M, Kamath S, Environ. Sci. Technol., 32(24), 3986 (1998)

[2] Alicilar A, Bicer A, Murathan A, Chem. Eng. Commun., 128, 95 (1994)

[3] Basheer S, Kut OM, Prenosil JE, Bourne JR, Biotechnol. Bioeng., 41, 465 (1993)

[4] Borbely GJ, Cliff C, Devuyst EA, Ettel VA, Mosoiu MA, Schitka KJ, U.S. Patent, 4,537,686 (1985)

[5] Devuyst EA, Robbins G, Vergunst R, Tandi B, Iamarino PF, Mining Eng., 2, 205 (1991)

[6] Gaudy AF, Gaudy ET, Feng YJ, Brueggemann YG, JWPCF, 54(2), 153 (1982)

[7] Gurol MD, Bremen WM, Environ. Sci. Technol., 19(9), 804 (1985)

[8] Ho SP, Wang YY, Wan CC, Water Res., 24(11), 1317 (1990)

[9] Horowitz GI, Martinez O, Cukierman AL, Cassanello MC, Catal. Today, 64(3-4), 347 (2001)

[10] Kim SJ, Hwang KR, Cho SY, Moon H, Korean J. Chem. Eng., 16(5), 664 (1999)

[11] Komurcu M, "Oxidation of Cyanide in Water in Packed Column," M.S. Thesis, Gazi University, Ankara, Turkey (1999)

[12] Matatov-Meytal YI, Sheintuch M, Ind. Eng. Chem. Res., 37(2), 309 (1998)

[13] Pak D, Chang W, Environ. Technol., 18(5), 557 (1997)

[14] Pamuk V, Yilmaz M, Alicilar A, J. Chem. Technol. Biotechnol., 76(2), 186 (2001)

[15] Park YH, Kim SJ, Kang SC, Korean J. Chem. Eng., 17(1), 81 (2000)

[16] Sharma VK, Rivera W, Smith JD, Brandon B, Environ. Sci. Technol., 32(17), 2608 (1998)

[17] Walsht F, Wilson G, Trans. IMF, 64, 55 (1986)

[18] Xiao Q, Cheng ZM, Jiang ZX, Anter AM, Yuan WK, Chem. Eng. Sci., 56(3), 1189 (2001)