Removal of COD from coking-plant wastewater in the moving-bed biofilm sequencing batch reactor

JieYing Jing; Jie Feng; WenYing Li; Ying Xu

Korean Journal of Chemical Engineering, Vol.26, No.2, 564-568, March, 2009

DOI10.1007/s11814-009-0096-8 Export Citation

Removal of COD from coking-plant wastewater in the moving-bed biofilm sequencing batch reactor

JieYing Jing, Jie Feng, WenYing Li^†, and Ying Xu

Key Laboratory of Coal Science and Technology of Shanxi Province and Ministry of Education, Taiyuan University of Technology, Shanxi 030024, P.R.China

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The objective of this paper is to investigate COD removal efficiency of the coking-plant wastewater by applying the moving-bed biofilm sequencing batch reactor (MBBSBR). The operation is simple and 30% WD-F10-4 BioM^(TM) were packed as carrier materials. It was found that the coking-plant wastewater could be effectively treated with 92.9% of COD removal efficiency at a low organic loading rate (OLR) of 0.449 kgCOD·m^(-3)·d^(-1). The removal efficiency decreased gradually down to 70.9% when OLR increased to 2.628 kgCOD·m^(-3)·d^(-1). The system has strong tolerance to organic shock loading in this experiment. The COD removal results in the blank experiments of biofilm and sludge showed that the attached biofilm has higher activity than suspended sludge and contributes about 60% to the COD removal.

Keywords:COD Removal;Coking-plant Wastewater;Moving-bed Biofilm;Shock Loading;Microorganism Activity

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[3] Wang HY, Yang F, Wu JN, Coal Scientific Technology, 35, 62 (2007)

[4] Sutton PM, Hurvid J, Hoeksema M, Water Environ Res., 71, 5 (1999)

[5] Liu SC, Wang GH, Xue GF, WISCO Technology, 46, 56 (2008)

[6] Yang P, Wang B, Shi YF, Journal of Chemical Industry and Engineering, 53, 1085 (2002)

[7] Lee KH, Lee JH, Park TJ, Korean J. Chem. Eng., 15(1), 9 (1998)

[8] Chen S, Sun DZ, Chung JS, Waste Management, 28, 339 (2008)

[9] Kim S, Kim J, Suzuki Y, Korean J. Chem. Eng., 24(6), 1042 (2007)

[10] Choi Y, Hayes D, Johnson K, Korean J. Chem. Eng., 24(4), 633 (2007)

[11] Jeong YS, Chung JS, Process Biochemistry, 41, 1141 (2006)

[12] Luostarinen S, Luste S, Valentin L, Water Research, 40, 1607 (2006)

[13] Sutton PM, Togna AP, Water Environment and Technology, 18, 44 (2006)

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[15] Comett IA, Gonzalez SM, Wilderer P, Wat. Sci. Tech., 47, 155 (2003)

[16] Lee JH, Nam HU, Park TJ, Korean J. Chem. Eng., 16(3), 303 (1999)

[17] Kumar MS, Vaidya AN, Shivaraman N, Environmental Engineering Science, 17, 221 (2000)

[18] American Public Health Association, Standard methods for the examination of water and wastewater 19th ed. APHA, Washington (1995)

[19] Zhou QY, Gao TY, Microbiology of environmental engineering, HEP, Beijing (2000)