Effects of electrode gap and electric current on chlorine generation of electrolyzed deep ocean water

Guoo-Shyng Wang Hsu ^a, Shun-Yao Hsu ^b,*

^a Department of Nutritional Science, Fu Jen Catholic University, Hsinchuang, New Taipei City, Taiwan

^b Graduate Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan

Electrolyzed water is a sustainable disinfectant, which can comply with food safety regulations and is environmental friendly. A two-factor central composite design was adopted for studying the effects of electrode gap and electric current on chlorine generation efficiency of electrolyzed deep ocean water. Deep ocean water was electrolyzed in a glass electrolyzing cell equipped with platinum-plated titanium anode and cathode in a constant-current operation mode. Results showed that current density, chlorine concentration, and electrolyte temperature increased with electric current, while electric efficiency decreased with electric current and electrode gap. An electrode gap of less than 11.7 mm, and a low electric current appeared to be a more energy efficient design and operation condition for the electrolysis system.

Keywords: Chlorine, Deep ocean water, Electric efficiency, Electrolyzed seawater, Optimization