Problem

The manufacturer of a UV disinfection unit has provided the following constants in the RED...

The manufacturer of a UV disinfection unit has provided the following constants in the RED equation: a = -0.80, b = -2.0, c = 0.18, d = 0.50, e = 0.85. The following values apply to the water being treated: maximum UVA = 0.100 cm-1, minimum S/So = 0-8, maximum flow = 5 mgd. The validation factor for the model calibration with respect to Cryptosporidium is 1.8. How many banks of lamps will be required to disinfect this water to meet the requirements of the Long Term 2 Enhanced Surface Water Treatment Rule?

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