A Novel Method to Measure the Concentration of EG with COD and Its Application to Alkali Wastewater of Polyester Textile

Dongn-Koo Lee; Tae-Sun Chang; Chae-ho Shin

Journal of Industrial and Engineering Chemistry, Vol.8, No.4, 313-317, July, 2002

Dongn-Koo Lee^{1, 2}, Tae-Sun Chang^{1, 3}, and Chae-ho Shin^{2, 3, †}

¹Division of Advanced Technology, Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea
²Department of Chemical Engineering, Chungbuk National University, Chungbuk 361-763, Korea
³, Korea

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A novel method to accurately determine the concentration of ethylene glycol (EG) in the wastewater discharged from the alkali weight-reduction process of polyester textile by measuring the chemical oxygen demand (COD) via the oxidation with permanganate has been developed. There is a linear relationship between the COD value and the concentration of EG in the range of 0.5 ~ 6.0 mmol-EG/l, and the presence of other impurities such as terephthalic acid (TPA) and sodium hydroxide (NaOH) was found to have little effect on the COD value. In particular, the COD value remains almost unchanged in the pH range 2 ~ 14. Therefore, this new method could be very useful for the analysis of effluents from the alkali weight-reduction process where EG exists typically at a high concentration level.

Keywords:quantitative analysis of ethylene glycol (EG);alkali weight-reduction wastewater;COD;periodate method

[References]

Kilroy AC, Gray NF, Environ. Technol., 13, 293 (1992)
Hall AJ, Textile World, 113, 108 (1963)
Padhye MR, Singhi RS, Colourage, 28, 13 (1981)
Shenai VA, Nayak NK, Textile Asia, 13, 59 (1982)
Houser KD, Text. Chem. Color, 15, 70 (1983)
Jie N, Yang D, Zhang Q, Yang J, Song Z, Anal. Chim. Acta, 359, 87 (1998)
Lee SB, Chung KW, Hong IK, Kim HJ, J. Ind. Eng. Chem., 7(4), 193 (2001)
Jeraci JL, Prichard D, U.S. Patent, 5,801,300 (1998)
Malaprade L, Bull. Soc. Chim. France, 43, 683 (1928)
Pitat J, Holcik V, BacakM, GB Patent, 822834 (1959)
Alter H, Encyclopedia of Polymer Science and Engineering, Vol. 5, pp. 103-128, Wiley Interscience, New York (1986)
Rollick KL, WO Patent, 95 10499 (1995)
Datye KV, Raje HM, Sharma ND, Resour. Conserv. Recy., 11, 136 (1984)
JISC, Japanese Industrial Standards, K 0101-86 (1988)
JISC, Japanese Industrial Standards, K 0102-86 (1988)
Cho HK, Noh ST, J. Ind. Eng. Chem., 6(1), 19 (2000)

[Referenced By]

[Related Articles]

[1] Kilroy AC, Gray NF, Environ. Technol., 13, 293 (1992)

[2] Hall AJ, Textile World, 113, 108 (1963)

[3] Padhye MR, Singhi RS, Colourage, 28, 13 (1981)

[4] Shenai VA, Nayak NK, Textile Asia, 13, 59 (1982)

[5] Houser KD, Text. Chem. Color, 15, 70 (1983)

[6] Jie N, Yang D, Zhang Q, Yang J, Song Z, Anal. Chim. Acta, 359, 87 (1998)

[7] Lee SB, Chung KW, Hong IK, Kim HJ, J. Ind. Eng. Chem., 7(4), 193 (2001)

[8] Jeraci JL, Prichard D, U.S. Patent, 5,801,300 (1998)

[9] Malaprade L, Bull. Soc. Chim. France, 43, 683 (1928)

[10] Pitat J, Holcik V, BacakM, GB Patent, 822834 (1959)

[11] Alter H, Encyclopedia of Polymer Science and Engineering, Vol. 5, pp. 103-128, Wiley Interscience, New York (1986)

[12] Rollick KL, WO Patent, 95 10499 (1995)

[13] Datye KV, Raje HM, Sharma ND, Resour. Conserv. Recy., 11, 136 (1984)

[14] JISC, Japanese Industrial Standards, K 0101-86 (1988)

[15] JISC, Japanese Industrial Standards, K 0102-86 (1988)

[16] Cho HK, Noh ST, J. Ind. Eng. Chem., 6(1), 19 (2000)