Pathogen Testing Box
Design Brief
A research group requested a machine be designed and built that could measure the impact of different wave lengths of light on a pathogen passing infront of it at different distances. The result was the pathogen testing box which atomises a pathogen into an aerosol form that is pumped infront of a quartz window through which a certain wave lenght of light is shone. The pathogen is then pushed through a filter before teminating in a detergent solution bubbler that kills any surviving pathoghen. There is also a machine valved up that can be used to measure the size and number of particles. This machine was requested as a later addition and compromises the safety valve that was installed to protect the chamber from over pressure and window failure. So a safe operating procedure was drawn up to make sure the black valves at the top are not closed in a dangerous combination at the same time. This addition also allowed for another device to be added when required that allows the pathogen to be bubbled through a solution before going into the detergent bubbler.
More information about the research this project help support can be found here: https://www.kingdomfm.co.uk/news/local-news/new-type-of-ultraviolet-light-might-make-indoor-settings-covid-safe-st-andrews-university-led-study-finds/