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A Study on the Potable Water Purification System with Pre-Ozone and Ultra Filtration Membrane of Hollow Fiber Type  

Kim, Min-Kuk (Environmental Facilities Management Corporation)
Chun, Yang-Kun (Environmental Facilities Management Corporation)
Publication Information
Journal of Korean Society on Water Environment / v.21, no.2, 2005 , pp. 196-204 More about this Journal
Abstract
The objective of this study is to evaluate the possibility to apply pre-ozone and membrane system for drinking water. This system is improved in fouling control by pre-ozone system. It is composed of ultrafiltration hollow fiber type membrane and ozone reactor. The result of this study is that the flux is increased about 10.7% and decreased in TMP by the pre-ozone. Also, backwashing pressure decreased about 18%. The optimum concentration of residual ozone is 0.3~0.5 ppm. During the period, the recovery ratio of this system was turned out to be 90% as the flowrate of effluent is $67.1m^3/day$. When the TMP and backwashing pressure was $0.85kg/cm^2$ and $1.10kg/cm^2$, this system was stable without sudden fouling. Finally, the quality of effluent is satisfied the guidelines for potable water quality such as turbidity, color, E.coli, Mn, Al, Fe and so on.
Keywords
UF membrane; Ozone; Potable water; Membrane fouling; Flux;
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