Treatment of Diluted Solutions of Methylene Blue by Adsorption Coupled with Electrochemical Regeneration: A Comparative Study of Three Adsorbants

Autor:	Morched Hamza, Ines Bouaziz, Ridha Abdelhedi, André Savall, Karine Groenen Serrano
Rok vydání:	2014
Předmět:	chemistry.chemical_compound Adsorption chemistry Electrochemical regeneration Inorganic chemistry Methylene blue
Zdroj:	ECS Transactions. 59:495-502
ISSN:	1938-6737 1938-5862
Popis:	The electrochemical regeneration of methylene blue-saturated adsorbents has been assessed in this work. This study compares the performances of activated carbon, Nyex®1000 and sawdust. Isotherms of adsorption were investigated and the maximum adsorption capacity was compared. The maximum adsorption capacity obtained for MB onto the virgin sawdust reached 25 mg/g which is 11.4 times lower than the one obtained onto activated carbon. The electrochemical regeneration efficiency, under the same experimental conditions, of the activated carbon and Nyex®1000 were significantly less than 100% while in the case of sawdust, this efficiency increased after each adsorption. This study confirmed that the coupling adsorption onto sawdust and electrochemical degradation is a potential technique for the efficient elimination of low concentration organic dyes from waste water.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::66d0da9c0bae115b4f2e74575275d41e https://doi.org/10.1149/05901.0495ecst Zobrazit plný text záznamu