Reduction of COD and Color of Acid and Reactive Dyestuff Wastewater Using Ozone

Jae-Wook Choi; Hyung Keun Song; Whun Lee; Kee-Kahb Koo; Choon Han; Byung-Ki Na

Korean Journal of Chemical Engineering, Vol.21, No.2, 398-403, March, 2004

DOI10.1007/BF02705427 Export Citation

Reduction of COD and Color of Acid and Reactive Dyestuff Wastewater Using Ozone

Jae-Wook Choi , Hyung Keun Song , Whun Lee¹, Kee-Kahb Koo¹, Choon Han², and Byung-Ki Na^{3, †}

Clean Technology Center, Korea Institute of Science and Technology, P.O.Box 131, Cheongryang, Seoul 130-650, Korea
¹Dept. of Chem. Eng., Sogang Univ., 1 Sinsudong, Mapo, Seoul 121-742, Korea
²Dept. of Chem. Eng., Kwangwoon Univ., Wolgyedong, Nowonku, Seoul 139-701, Korea
³School of Chem. Eng., Chungbuk National Univ., San 48 Gaesindong, Cheongju, Chungbuk 361-763, Korea

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Wastewaters obtained from bromamine acid dye and reactive dye manufacturing were treated by ozone bubbling in a cylindrical batch reactor for the purpose of reducing COD to below 150 mg/L, which is the environmental discharge standard of the Republic of Korea. Remarkable COD reduction and decolorization were observed at pH over 11. High inlet gas flowrate and high concentration of ozone gave better results. Little precipitation was observed under the conditions of remarkable COD reduction. At pH of 11, 15 LPM of inlet gas flowrate and 89.3 g/Nm³ of ozone flowrate, the COD of bromamine acid dyestuff wastewater was reduced to 95 mg/L after 90 minutes, and the COD of reactive dyestuff wastewater was reduced to 120 mg/L after 120 minutes. Decolorization was completed after 30 minutes of reaction.

Keywords:Ozone;Dyestuff;Wastewater;Color;COD;pH

[References]

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Han TS, Yoon HH, Kim BS, HWAHAK KONGHAK, 37(3), 482 (1999)
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[Referenced By]

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[1] Bigda RJ, Chem. Eng. Prog., 91(12), 62 (1995)

[2] Churchley JH, Ozone Sci. Eng., 20, 111 (1998)

[3] Cooney DO, "Adsorption Design for Wastewater Treatment," Lewis, Baton Rouge (1999)

[4] Evans FL, "Ozone in Water and Wastewater Treatment," Ann Arbor Science, Michigan (1975)

[5] Han TS, Yoon HH, Kim BS, HWAHAK KONGHAK, 37(3), 482 (1999)

[6] Hur JM, Kim SH, Korean J. Chem. Eng., 17(4), 433 (2000)

[7] Ince NH, Water Res., 33(4), 1080 (1999)

[8] Kang SF, Liao CH, Po ST, Chemosphere, 41, 1287 (2000)

[9] Kim SH, Kim TW, Cho DL, Lee DH, Kim JC, Moon H, Korean J. Chem. Eng., 19(5), 895 (2002)

[10] Kong SH, Kwon CI, Kim MH, Korean J. Chem. Eng., 20(2), 293 (2003)

[11] Kuo WG, Water Res., 26(7), 881 (1992)

[12] Lang PS, Ching WK, Willberg DM, Hoffmann MR, Environ. Sci. Technol., 32, 3142 (1998)

[13] Lee CK, Low KS, Chung LC, J. Chem. Technol. Biotechnol., 69(1), 93 (1997)

[14] Lee MG, Hano T, Korean J. Chem. Eng., 18(2), 178 (2001)

[15] Li XZ, Zhao YG, Water Sci. Technol., 39(10-11), 249 (1999)

[16] Markovska L, Meshko V, Noveski V, Korean J. Chem. Eng., 18(2), 190 (2001)

[17] Nam SW, Seo JY, Lee DS, "Dyestuff Chemistry," Seongji, Seoul (1998)

[18] Orta MT, Altamirano JM, Monje I, Manero O, Ozone Sci. Eng., 20, 151 (1998)

[19] Park TJ, Lee KH, Jung EJ, Kim CW, Water Sci. Technol., 39(10), 189 (1999)

[20] Rinker EB, Ashour SS, Johnson MC, Kott GJ, Rinker RG, Sandall OC, AIChE J., 45(8), 1802 (1999)

[21] Salem IA, El-Maazawi MS, Chemosphere, 41, 1173 (2000)

[22] Salem IA, Trans. Metal Chem., 25, 599 (2000)

[23] Sarasa J, Roche MP, Ormad MP, Gimeno E, Puig A, Ovelleiro JL, Water Res., 32(9), 2721 (1998)

[24] Tatarko M, Bumpus JA, Water Res., 32(5), 1713 (1998)

[25] Weber WJ, LeBoeuf EJ, Water Sci. Technol., 40(4), 11 (1999)