This paper presents a risk assessment of the formation of hydrogen gas in the electrochemical generation of ferrate(VI) under laboratory scale test conditions. The theoretical production of hydrogen gas was compared with the experimental production. The applied currents were 0.2, 0.4, 0.6 and 0.8 A on an iron steel plate with surface areas of 55.2 cm2, corresponding to the current densities of 3.62, 7.2, 10.87 and 14.49 mA cm2, respectively.
- hydrogen gas production
- wastewater treatment