Evaluation of Microfiltration Membrane as Prefilter for Reverse Osmosis membrane 


Vol. 7,  No. 3, pp. 179-185, Sep.  2001


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  Abstract

Some companies are trying to develop the microfiltration membranes because most of them used as a prefilter is imported in Korea. However, they are faced with much difficulty such as characterization of membrane and controlling of pore size on development. In this study, a microfiltration membrane developed by a company was evaluated for applicability to use as a prefilter before reverse osmosis membrane process in production of ultra pure water. The optimum feed pressure for the raw water was obtained at 0.2 to 0.4 atm. At that time, turbidity of the treated water was 0.4 NTU and flux was 6,000 to 9,000 L/m(2)/hr. In case of the conventionally treated water, it showed the very stable flux and turbidity at 90% of recovery rate. The chemical cleaning was helpful to reduce the TMP for treated water. The turbidity was improved from 0.3 NTU to 0.1 NTU after chemical cleaning.

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  Cite this article

[IEEE Style]

H. S, O. S, J. J, "Evaluation of Microfiltration Membrane as Prefilter for Reverse Osmosis membrane," Clean Technology, vol. 7, no. 3, pp. 179-185, 2001. DOI: .

[ACM Style]

Hong S, Oh S, and Jeon J. 2001. Evaluation of Microfiltration Membrane as Prefilter for Reverse Osmosis membrane. Clean Technology, 7, 3, (2001), 179-185. DOI: .

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pISSN : 1598 - 9712
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한국연구재단 등재학술지