Gas disinfectant system

Our client, Total Biocide Solutions (TBS), consulted with us to develop and test their first chlorine dioxide gas generator for the disinfection and deodorization of test hoods, hospital and hotel rooms, and more.

Development and testing

I was involved in the design and testing of the alpha prototype. The project included PCB layout and hand-population, PBASIC programming to drive displays and activate relays, and safe chemical handling and testing practices as the chlorine dioxide gas is hazardous in higher concentrations.

Custom gas sensor

Given that nothing was commercially available for measuring our gas concentrations and this could ultimately be used to control the chemistry, I was tasked with developing a custom sensor. This prototype utilized optical sensors, a proto board, and a National Instruments DAQ.

Self-neutralizing cartridge development

Shown here is the first prototype of a self-neutralizing cartridge. The customer sought a design that was fail-safe in the event of a power outage or aborted test. I utilized a relay actuator and a spring-loaded sealed door to facilitate neutralization when the relay was deactivated.