Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received May 22, 2001
Accepted November 20, 2001

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Air Oxidation of Aqueous Cyanides in a Countercurrent Fixed Bed Reactor

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

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

alicilar@gazi.edu.tr

Korean Journal of Chemical Engineering, March 2002, 19(2), 273-276(4), 10.1007/BF02698413

Download PDF

Abstract

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)