Central Composite Design To Optimize The Degradation Of Methylene Blue By Fenton Process. Issue 38 (18th October 2019)

• Record Type: Journal Article
• Authors: Saidi, Fatima Zahra; Mokhtari, Malika
• Is Part Of: ChemistrySelect. Volume 4:Issue 38(2019)
• Page Start: 11288
• Page End: 11293
• Publication Date: 2019-10-18
• Subjects: Central Composite Design -- Degradation -- Fenton -- Methylene Blue -- Optimization; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201902466
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Methylene blue (MB) is a cationic dye widely used in medicine as an antiseptic, also in other fields such as biology, chemistry, textile industry…etc. This pollutant exists in nature as the result of the fluid which is released from industries that can directly affect both the living organisms and the environment. This study consists of eliminating methylene blue by Fenton process under the influence of three parameters (pH, [Fe II ] and ratio R). The degradation of this substance was followed by a modeling of this process using statgraphics‐plus software. The best result was obtained by the central composite design (CCD) 2*3+star on three‐level ( low, medium, high) of which coefficient of correlation R 2 equal to 0.96, and the optimal conditions found are pH= 2.9, R=23.6 and [Fe II ]=1.5.10 −4 M, with a yield of elimination of MB of 100% after a 30 min of treatment. This optimization minimizes the number of experiments and the time of research. Abstract : In this paper removal of methylene blue by of Fenton process was studied. Effect of different parameters on the degradation of the pollutant (pH, [Fe II ] and ratio R= [H2 O2 ] /[MB] ) in aqueous solution were investigated. Experimental results were followed by a modeling of this process using statgraphics_plus software. The optimal conditions for MB degradation by Fenton process were obtained from Central Composite Design (CDD).