Electrochemical Production of Sodium Hypochlorite from Salty Wastewater Using a Flow-by Porous Graphite Electrode

The production of sodium hypochlorite (NaOCl) from salty wastewater using an electrochemical cell has several advantages over other methods that often require hazardous chemicals and generate toxic waste, being more sustainable environmentally friendly. However, the process producing requires careful control operating conditions, such as current density, flow rate, inert electrode spacing, electrolyte concentration, to optimize conversion efficiency prevent fouling degradation. In this study, NaOCl was produced via a bench-scale flowing porous graphite in continuous system collected Suez Canal Egypt. aim investigation examine factors affect concentration energy consumption, anodic salinity, influent feed rate. A lab-scale reactor with two electrodes used conduct experiments. highest yield 20.6% achieved electrode, which had high rigidity at rate 4.5 mL/min, density 3.183 mA/cm2, space 0.5 cm, salinity 40,000 ppm, pH 6.4. power consumption under these conditions 0.0137 kwh. Additionally, statistical least square multivariate regression technique employed establish correlation for predicting % production. obtained R2 value 98.4%. Overall, provides valuable insights into wastewater, could have potential industrial applications various sectors textiles, detergents, paper, pulp.