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A Study on Effect of Jet Mixed Separator Combination for Pre-treatment of Ultrafiltration Membrane Filtration Process  

Lee, Sanghyup (한국과학기술연구원 환경공정연구부 수질환경 및 복원연구센터)
Jang, Nakyong (특허청 화학생명공학심사국 유전공학과)
Watanabe, Yoshimasa (일본 국립북해도대학대학원 공학연구과 도시환경공학전공)
Publication Information
Journal of Korean Society of Water and Wastewater / v.19, no.1, 2005 , pp. 38-46 More about this Journal
Abstract
In this research, we tried to combine the coagulation/sedimentation process as pre-treatment with UF membrane filtration to reduce the membrane fouling and to improve the permeate water quality. We used the Jet Mixed Separator (JMS) as coagulation/sedimentation process. We observed that the HPC and E.Coli can't be removed through the direct UF memebrane filtation of surface water. The removal efficiency of dissolved organic substances, indicated by E260 and DOC, was 40% and 15%, respectively. However, the removal efficiency of it increased two time as a result of combination of JMS process as coagulation/sedimentation pre-treatment. This was resulted from the formation of high molecular humic micro-floc through JMS process. The accumulation amount of irreversible cake layer which was not removed by backwashing was less than direct UF membrane filtration of surface water. Moreover, the loading rate of fouling induced substances, such as humic substances and suspended substances, on membrane surface decreased drastically through JMS process. As a result, the accumulation amount of irreversible cake on membrane surface was decreased.
Keywords
Jet Mixed Separator; Pre-treatment; UF; coagulation/sedimentation;
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  • Reference
1 G.E. Wetterau., M.M. Clark and C. Anselme. (1996) A dynamic model for predicting fouling effects during the ultrafiltration of a groundwater. J. Membrane Sci. 109, pp. 84-97
2 R.G. Rice., C.M. Robson., G.W. Miller and A.G. Hill. (1981. 2) Uses of ozone in drinking water treatment. JAWWA. pp. 44-57
3 Yu-Jung Chang., Kwang-Ho Choo., Makr. M. Benjamin and Steve Reiber. (1998) Combined adsorption-UF process increase TOC removal. JAWWA. 90(5). pp. 90-102
4 佐藤敦久. (1992) 水處理(その新しい展開) 技報堂出版, pp. 27-84
5 S. Chellam., J.G. Jacangelo., T.P. Bonacquisti and B.A. Schauer. (1997) Effects of pretreatment on surface water nanofiltration. JAWWA. 89(10), pp.77-89   DOI
6 L.A. Cipparone., A.C. Diehl and G.E. Speitel Jr. (1997) Ozonation and BDOC removal: effects on water quality. JAWWA. 89(2). pp 84-97
7 AWWA membrane technology research committee. Committee Report: Membrane Processes. (1998) JAWWA. 90(6), pp.91-105   DOI
8 A.A. Stevens., L.A. Moore and R.J. Miltner. (1989) Formation and control of Non-Trihalomethane Disinfection By-producets. JAWWA. 81(8). pp.54-60   DOI
9 卞如林. (1998) 河川水のUF膜ろ過に關する硏究. 北海道大學博士論文, pp.24-42
10 厚生省生活衛生局水道環境部. (1996)クリプトスポリシウ 暫定封策指針, pp.1-36
11 丹保憲仁. 亀井 翼. (1993) 水處理における處理性評マトリックス. 水道協會雜誌. 第62券. 第9號, pp.28-40
12 Yoshirnasa Watanabe, Shinsuke Kasahara and Yoshihiko Iwasaki. (1998) Enhanced flucculation/sedimentation process by a jet mixed separator. Water Science and Technolgy. 37(10), pp. 55-67
13 M.W. LeChevallier., W.C. Backer., P. Schorr and R.G. Lee. (1992.4) Evaluating the performance of Biologically Active Rapid Filters. JAWWA. pp. 136-146
14 J.G. Jacangelo., S.S. Adham and J.M. Laine. (1997. 9) Mechanism of Cryptosporodium, Giardia and MS2 virus removal by MF and UF. JAWWA. pp. 107-121