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Ultraviolet light‐emitting diodes (UV‐LEDs) offer high flexibility in the reactor design for water disinfection. To specify the key design factors affecting the performance of a reactor, we examined how the arrangement of UV‐LEDs in a cylindrical reactor affects the inactivation efficiency of Escherichia coli and coliphage Qβ. A ring‐shaped UV‐LED apparatus, composed of two units containing ten 285‐nm...
UV light emitting diodes (UV-LEDs) with peak emissions at 265, 280 and 310nm were applied to batch and flow-through water disinfection systems. Inactivation efficiency of Escherichia coli was compared between reactors and among emissions based on the exposure time and fluence. Combined emissions at 265/280, 265/310, 280/310 and 265/280/310nm were also tested in the flow-through reactor.The time-based...
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