Aqueous suspensions of Escherichia coli and TiO2 (anatase) were irradiated with a BLF lamp (320nm<λ<420nm). The inactivation rate for an initial E. coli level of 103 cells/mL was 1.78×10−2/min for light intensity of 67.9μE/s.m2 in the presence of 1mg/mL TiO2. Optimum TiO2 loading and the effect of light intensity are also reported.

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