Phenol degradation by fenton reaction in air injection using plasma electrolysis method

Abstract

Phenolic compounds are pollutants which have high toxicity and could be harmful to the environment even at low concentrations. The degradation of phenolic has been conducted by various methods including photocatalytic and ozonation. However, these methods require high costs and large energy. Therefore, plasma electrolysis by the Fenton reaction may be an alternative method for phenol degradation. The purpose of this study is to determine the optimum conditions for phenol degradation by adding Fe2+ ions. The result shows that the most effective phenol degradation was obtained by using an optimum power of 700 watts with an air injection flow rate of 0.2 L/min and addition Fe2+ 20 ppm ions for 30 min experiments. Based on these conditions, the concentration of phenol in waste was reduced to 0.425 mg/L and the highest percentage of phenol degradation (99.58%) was observed. The final phenol concentrations obtained in this study met the quality standards for clean water at a concentration of 1 mg/L as well as the quality standards for drinking water treatment at a concentration of 0.5 mg/L.

Enhancement and Mechanism of Rhodamine B Decomposition in Cavitation-Assisted Plasma Treatment Combined with Fenton Reactions

“…The second group of reactions comprises the Fenton reactions, which involve hydrogen peroxide and iron ions, Fe 2+ and Fe 3+ . The commonly accepted mechanism of the Fenton reactions is represented by Equations ( 9)-( 12), and the reaction rate constants, k, can be found in the relevant literature [23]. The Fenton reaction itself is considered to be the reaction represented by Equation ( 9).…”

The Concentration Effect of K2so4 Electrolite Solution on Glow Discharge Plasma Electrolysis

“…3) glow discharge zone, there is a discharge of electrons and the current is directly proportional to the increase in voltage. Plasma stability begins to form and more heat is generated causing joule heating (Wahono et al, 2020). The sheath is re-formed due to evaporation of the electrolyte solution around the cathode (Karamah et al, 2021).…”