A Comparative Electrochemical-Ozone Treatment for Removal of Phenolphthalein
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2016-01-01 |
| Journal | Journal of Chemistry |
| Authors | V.M. García-Orozco, Carlos Barrera-Díaz, Gabriela Roa‐Morales, Ivonne Linares‐Hernández |
| Institutions | Universidad Autónoma del Estado de México |
| Citations | 15 |
Abstract
Section titled “Abstract”The degradation of aqueous solutions containing phenolphthalein was carried out using ozone and electrochemical processes; the two different treatments were performed for 60 min at pH 3, pH 7, and pH 9. The electrochemical oxidation using boron-doped diamond electrodes processes was carried out using three current density values: 3.11 mA·cm −2 , 6.22 mA·cm −2 , and 9.33 mA·cm −2 , whereas the ozone dose was constantly supplied at <mml:math xmlns:mml=“http://www.w3.org/1998/Math/MathML” id=“M1”><mml:mn fontstyle=“italic”>5</mml:mn><mml:mo>±</mml:mo><mml:mn fontstyle=“italic”>0.5</mml:mn></mml:math> mgL −1 . An optimal degradation condition for the ozonation treatment is at alkaline pH, while the electrochemical treatment works better at acidic pH. The electrochemical process is twice better compared with ozonation.