WastewaterTreatment by Anaerobic Digestion Coupled with Membrane Processing

Sung-Hee Roh; Young Nam Chun; Jae-Woon Nah; Hyun-Jae Shin; Sun-Il Kim

Journal of Industrial and Engineering Chemistry, Vol.12, No.3, 489-493, May, 2006

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WastewaterTreatment by Anaerobic Digestion Coupled with Membrane Processing

Sung-Hee Roh , Young Nam Chun¹, Jae-Woon Nah², Hyun-Jae Shin , and Sun-Il Kim^†

Department of Chemical Engineering, Chosun University, Gwangju 501-759, Korea
¹Department of Environmental Engineering, Chosun University, Gwangju 501-759, Korea
²Department of Polymer Science and Engineering, Sunchon National University, Jeonnam 540-742, Korea

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Treatment of starch waste by an anaerobic digester-membrane system was studied. The starch waste was immersed into a hollow fiber membrane unit, of area 0.17 m2, with themembrane pore size varying from 0.03 to 0.15 μm. The hydraulic retention time (HRT) of the anaerobic digester ranged from 1.5 to 10 days and this variation had a significant effect on the treatment efficiency; in contrast, whereas the membrane size had no significant effect. The gas production was ca. 0.74 m3/kg chemical oxygen demand (COD) treated. The COD removal efficiency was ca. 80∼ 95 %, depending on the HRT. The effluent from the anaerobic filter, having a total COD in the range 4500 ∼ 5200 mg/L, was treated by crossflow ultrafiltration (UF) units. Experiments performed with different membrane pore sizes indicated that a membrane with a molecular weight cut-off (MWCO) size of 10⁶ showed a higher COD removal efficiency in the range of 83∼ 87 %, while maintaining a steady flux of 120 130 L/m2h. The scope of this study scope was also expanded to investigate the long term clogging effect of the membrane.

Keywords:anaerobic digester;crossflow;ultrafiltration;membrane

[References]

Tanticharoen M, Biogas Production from Tapioca Starch Wastewater, in Proc. of UNEP/TISTER, Bangkok Mircen Regional Workshop on Upgrading of Cassava, Cassava Wastes by Appropriate Biotechnologies, pp. 24-34, Bangkok, Thailand (1989)
Anderson GK, Donnelly T, J. Water Pollut. Control, 83, 491 (1984)
Forster CC, J. Water Pollut. Control, 83, 484 (1984)
Henz M, Harremoes P, Water Sci. Technol., 15, 1 (1982)
Ferandes XA, Contwell AD, Mosey FE, J. Water Pollut. Control, 84, 99 (1985)
Bhattachary D, J. WPCF, 50, 846 (1978)
Jeris JS, Water Sci. Technol., 15, 169 (1982)
Hong SK, Elimelech M, J. Membr. Sci., 132(2), 159 (1997)
Kim IC, Ka YH, Park JY, Lee KH, J. Ind. Eng. Chem., 10(1), 115 (2004)
Watanabe Y, Itonaga T, J. Ind. Eng. Chem., 10(1), 122 (2004)
Kim SJ, J. Ind. Eng. Chem., 11(1), 47 (2005)
Manickam T, Gaudy AF, J. WPCF, 51, 2033 (1979)
Saha BC, Ueda S, J. Appl. Microbiol. Biotech., 19, 341 (1984)
Den Berg L, Kennedy KJ, Effect of Type of Waste of Performance of Anaerobic Fixed Film and Upflow Sludge Bed Reactor, National Research Council of Canada, KIA OR6, pp. 16-19, Ottawa, Ontario, Canada (1985)

[Referenced By]

[Related Articles]

[1] Tanticharoen M, Biogas Production from Tapioca Starch Wastewater, in Proc. of UNEP/TISTER, Bangkok Mircen Regional Workshop on Upgrading of Cassava, Cassava Wastes by Appropriate Biotechnologies, pp. 24-34, Bangkok, Thailand (1989)

[2] Anderson GK, Donnelly T, J. Water Pollut. Control, 83, 491 (1984)

[3] Forster CC, J. Water Pollut. Control, 83, 484 (1984)

[4] Henz M, Harremoes P, Water Sci. Technol., 15, 1 (1982)

[5] Ferandes XA, Contwell AD, Mosey FE, J. Water Pollut. Control, 84, 99 (1985)

[6] Bhattachary D, J. WPCF, 50, 846 (1978)

[7] Jeris JS, Water Sci. Technol., 15, 169 (1982)

[8] Hong SK, Elimelech M, J. Membr. Sci., 132(2), 159 (1997)

[9] Kim IC, Ka YH, Park JY, Lee KH, J. Ind. Eng. Chem., 10(1), 115 (2004)

[10] Watanabe Y, Itonaga T, J. Ind. Eng. Chem., 10(1), 122 (2004)

[11] Kim SJ, J. Ind. Eng. Chem., 11(1), 47 (2005)

[12] Manickam T, Gaudy AF, J. WPCF, 51, 2033 (1979)

[13] Saha BC, Ueda S, J. Appl. Microbiol. Biotech., 19, 341 (1984)

[14] Den Berg L, Kennedy KJ, Effect of Type of Waste of Performance of Anaerobic Fixed Film and Upflow Sludge Bed Reactor, National Research Council of Canada, KIA OR6, pp. 16-19, Ottawa, Ontario, Canada (1985)