Action spectra characteristic for typical challenge organism used in polychromatic UV reactor validation

In the last decade, ultraviolet disinfection has emerged as a “green” technology with no harmful

chemicals used for treatment and no significant disinfection byproducts left in the effluent. Validation

of reactor performance based on bioassay process is often required for UV disinfection applications.

However, validation for medium pressure UV reactors is much more complex than traditional low

pressure UV reactors because the complexity of the relative action spectra of the surrogate

microorganism and target pathogen under the broader wavelengths. As a result, important issues

such as kinetics of organism inactivation under different wavelength and how does the action spectra

impact the bioassay results have not been addressed to date. This study will investigate the action

spectra characteristic of the surrogate microorganism MS2 and construct a proper method for the

MITACS Template Version- March 2010 14

action spectra measurement as well as propose a model in order to assess the impact of action

spectra on disinfection efficiency and RED determination for both….

Faculty Supervisor:

Ajay Ray

Student:

Partner:

Trojan Technologies

Discipline:

Engineering

Sector:

Construction and infrastructure; Manufacturing

University:

Western University

Program:

Accelerate

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