Mini pulsed electric field device for water disinfection

In this video, it shows an HKUST engineering showing how an engineer goes from identifying problems to coming up with a viable solution. As you watch it, see how in less than 3.5 minutes he: Explains the origin of the problem (questions) Drawbacks of the electric field device for water disinfection(originally) Design problems (barriers) that needed to be considered in engineering solutions. How engineers think creatively