Environmental Scientifics Group

Environmental Scientifics Group

ESG is a leading provider of testing, inspection and compliance services, operating from over 30 locations nationwide. ESG has developed an electrolytic cell named Protex that offers water hygiene protection, together with simpler maintenance in the application of hot water installations in non-domestic buildings. They will demonstrate one of their small-scale experiments where electrodes are immersed in a 3.5 litre flask containing tap water. The apparatus is connected to a dc power supply and low voltage is applied to the electrodes, generating free chlorine from the natural salt content in the water.