Assessing the UV Dose Delivered from Two UV Reactors in Series: Can You Always Assume Doubling the UV Dose from Individual Reactor Validations?

摘要

A study has been performed to quantify the UV dose delivery from multiple UV reactors in series. As part of this assessment, simulations were performed on open channel - reactors and closed conduit reactors that were physically placed end to end or separated by a significant number of pipe diameters or open channel widths. Simulations were also performed with microorganisms that had different UV response kinetics. Results showed that UV dose delivery from multiple reactors in series may not consistently follow the sum of the individual UV dose delivered by each reactor. The results of the numerical simulations suggest that the summation of UV dose delivery from multiple reactors in series can only be achieved when sufficient mixing is accomplished upstream from each subsequent individual reactor.