| Title | Cooperative effects of adsorption on granular activated carbon and hydroquinone-driven fenton reaction in the removal of nonionic surfactant from aqueous solution |
| Abstract | Fenton oxidation of the nonionic surfactant Brij 35 was enhanced by the effect of 1,4-hydroquinone adsorbed on granular activated carbon (GAC). The procedure allowed 90%-94% surfactant removal after 24 h at pH= 2.7-3.0, using 97mg g- 1 of hydroquinone adsorbed on GAC and concentrations of surfactant, H2O2, and iron (either Fe2 + or Fe3 + ) of, respectively, 1300, 450, and 9mg L- 1. In the absence of carbon and hydroquinone, and with the same concentration of H2O2, conventional Fenton process required 300mg L- 1 of Fe(II) to obtain 85% removal of Brij 35. Quinone-loaded carbon was effectively recycled until surfactant removal decreased to 50%-60%. Only 3% of hydroquinone was desorbed from GAC to the aqueous solution, and about 40% of the dissolved fraction was degraded to low-molecular-weight organic acids. This is the first description of a Fenton process performing
the recycling of a redox-active organic compound adsorbed on GAC, with the aim of decreasing the amount of iron salt utilized in the conventional Fenton reaction. |
| Source | Environmental engineering science (Online) 29 (3), pp. 202–211 |
| Keywords | fenton oxidationhydroquinonegranular activated carbon |
| Journal | Environmental engineering science (Online) |
| Editor | Mary Ann Liebert, Inc., [Larchmont, NY], Stati Uniti d'America |
| Year | 2012 |
| Type | Articolo in rivista |
| DOI | 10.1089/ees.2010.0446 |
| Authors | Pagano M., Volpe A., Mascolo G., Lopez A., Locaputo V., Ciannarella R. |
| Text | 190724 2012 10.1089/ees.2010.0446 fenton oxidation hydroquinone granular activated carbon Cooperative effects of adsorption on granular activated carbon and hydroquinone driven fenton reaction in the removal of nonionic surfactant from aqueous solution Pagano M., Volpe A., Mascolo G., Lopez A., Locaputo V., Ciannarella R. Fenton oxidation of the nonionic surfactant Brij 35 was enhanced by the effect of 1,4 hydroquinone adsorbed on granular activated carbon GAC . The procedure allowed 90% 94% surfactant removal after 24 h at pH= 2.7 3.0, using 97mg g 1 of hydroquinone adsorbed on GAC and concentrations of surfactant, H2O2, and iron either Fe2 or Fe3 of, respectively, 1300, 450, and 9mg L 1. In the absence of carbon and hydroquinone, and with the same concentration of H2O2, conventional Fenton process required 300mg L 1 of Fe II to obtain 85% removal of Brij 35. Quinone loaded carbon was effectively recycled until surfactant removal decreased to 50% 60%. Only 3% of hydroquinone was desorbed from GAC to the aqueous solution, and about 40% of the dissolved fraction was degraded to low molecular weight organic acids. This is the first description of a Fenton process performing the recycling of a redox active organic compound adsorbed on GAC, with the aim of decreasing the amount of iron salt utilized in the conventional Fenton reaction. 29 Published version Articolo in rivista Mary Ann Liebert, Inc. 1557 9018 Environmental engineering science Online Environmental engineering science Online Environmental engineering science Online angela.volpe VOLPE ANGELA vito.locaputo LOCAPUTO VITO antonio.lopez LOPEZ ANTONIO michele.pagano PAGANO MICHELE ruggiero.ciannarella CIANNARELLA RUGGIERO giuseppe.mascolo MASCOLO GIUSEPPE TA.P07.002.006 Trattamenti avanzati di ossidazione |
