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http://dx.doi.org/10.7464/ksct.2010.16.1.039

Initial Operating Condition of Membrane Bioreactor with PVDF Hollow Fiber and Permeate Reuse  

Shin, Choon-Hwan (Department of Energy & Environmental Engineering, Dongseo University)
Kang, Dong-Hyo (Research Center, Busan Environmental Corporation)
Park, Hae-Sik (Research Center, Busan Environmental Corporation)
Cho, Hyun-Kil (Research Center, Busan Environmental Corporation)
Publication Information
Clean Technology / v.16, no.1, 2010 , pp. 39-45 More about this Journal
Abstract
In this paper, 4 bundle modules of PVDF hollow fiber membrane from Woori Tech company (Korea) were manufactured in a treatment capacity of 10 ton/day. A membrane bioreactor (MBR) pilot plant was installed at Sooyoung Wastewater Treatment Plant in Busan. An alternating aeration process was selected to avoid the concentration profile of suspended solid (SS) in the MBR. For stable operation, raw wastewater with mixed liquor suspended solid (MLSS) of about 1,000 ppm, which was in-flowed from the aeration tank of the wastewater treatment plant, was fed and filtered through the pilot plant. Subsequently the pilot plant were washed three times with washing water: once with ethanol solution, once with a solution of 5% NaOCl, and finally with washing water. After the chemical washing, the remaining water in the MBR was fed into the pilot plant. As a result, the SS removal efficiency was found to be more than 99.9%. The amount of filtrate with the aeration tank influent decreased by 16%, compared with that from the initial conditions, giving rise to 30% increase in the suction pressure. These results were used to set up continuous operation conditions. The results from the continuous operation with influent MLSS of 1,900 mg/L showed that the SS removal efficiency was about 99.99% and that the amount of filtrate and the suction pressure were $42{\sim}52L/m^2$ and 16~20 cmHg, respectively, indicating stable operation of the pilot plant. However, for the reuse of wastewater, methods need to be sought to avoid growth of algae which affects the SS removal efficiency at inlet and outlet of the permeate tank.
Keywords
Hollow fiber; Membrane bioreactor; Wastewater treatment; Suspended solid removal; Permeate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Shin, C. H., "Optimization Technique and Practical Use of a MBR to Reduce the Size of Final Clarifier," Technical Report, Busan Environmental Installation Corporation, 2008.
2 Kamo, J, Hirai, T., and Kamada, K., "Solvent-induced Morphological Change of Microporous Hollow Fiber Membrane," J. Membrane Sci., 70, 217-221 (1992).   DOI   ScienceOn
3 Barbe, A. M., Hogan, P. A., and Johnson, R., "Surface Morphology Changes during Initial Usage of Hydrophobic, Microporous Polypropylene Membranes," J. Membrane Sci., 172, 149-156 (2000).   DOI   ScienceOn
4 Yamamori, H., Hoshlde, A., and Kobayashi, M., "Hollow Fiber Membrane Module," U.S. Patent No. 5,480,553 (1996).
5 Nielson, D., The Effect of Rapid-backpulsing and Membrane Surface Modification on Membrane Fouling Reduction, Progress Report, Univ. of Colorado, 1999, pp. 1-11.
6 Ueda, T., Hata, K., Kikuoka, Y., and Seino, O., "Effects of Aeration on Suction Pressure in a Submerged Membrane Bioreactor," Water Res., 31, 489-494 (1997).   DOI   ScienceOn
7 Smith, Jr., C. V., Gregorio, D. D., and Talsott, R. M., "The Use of Ultrafiltration Membrane for Activated Sludge Separation," Proc. of the 24th Annual Purdue Industrial Waste Conference, 241-250 (1969).
8 Bemberis, I, Hubbard P. J., ando Leonard F. B., "Membrane Sewage Treatment System - Potential for Complete Wastewater Treatment," Proc. of the Winter Meeting American Society of Agricultural Engineers, 171-188 (1971).
9 Yamoto, K., Kazuo, M., and Win, K. M., "Tannery Wastewater Treatment Using a Sequencing Batch Membrane Reactor," Water Sci. Technol., 163, 1639-1648 (1991).
10 Shin, C. H., and Bae, J. S., "Modification of a Hollow Fiber Membrane and Its Three Dimensional Analysis of Surface Pores and Internal Structure for a Water Reclamation System," J. Ind. Eng. Chem., 15(6), 784-790 (2009).   DOI   ScienceOn
11 Shin, C. H,. and Johnson R. "Permeate Characteristics and Operating Conditions of a Membrane Bioreactor with Dispersing Modified Hollow Fiber," J. Ind. Eng. Chem., 13(1), 40-46 (2007).
12 Cote, P., Buisson, H., Pound, C., and Arakaki, G., "Immersed Membrane Activated Sludge for the Reuse of Municipal Wastewater," Desalination, 113, 189-196 (1997).   DOI   ScienceOn
13 Kiat, W. Y., Yamamoto, K., and Ohgaki, S., "Optimal Fiber Spacing in Externally Pressurized Hollow Fiber Module for Solid-liquid Separation," Water Sci. Technol., 26, 1245-1254 (1992).
14 Yamamoto, K., Hiasa, M., Mahmood, T., and Matsuo, T., "Direct Solid-liquid Separation Using Hollow Fiber Membrane in an Activated Sludge Aeration Tank," Water Sci. Technol., 21, 43-54 (1989).