Response surface methodology for decolorization of azo dye Methyl Orange by bacterial consortium: Produced enzymes and metabolites characterization

2010 ◽  
Vol 165 (1) ◽  
pp. 200-208 ◽  
Author(s):  
Lamia Ayed ◽  
Eltaief Khelifi ◽  
Hichem Ben Jannet ◽  
Hanene Miladi ◽  
Abdelkarim Cheref ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Methyl Orange ◽  
Response Surface ◽  
Azo Dye ◽  
Bacterial Consortium

scholarly journals Optimization of the Fenton Oxidation of Synthetic Textile Wastewater using Response Surface Methodology

2017 ◽  
Vol 25 (0) ◽  
pp. 108-113 ◽  
Author(s):  
Maciej Thomas ◽  
Krzysztof Barbusiński ◽  
Katarzyna Kalemba ◽  
Paweł Jan Piskorz ◽  
Violetta Kozik ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Process Parameters ◽  
Anionic Surfactant ◽  
Azo Dye ◽  
Textile Wastewater ◽  
Fenton Process ◽  
Optimal Process ◽  
Model Studies ◽  
Experimental Values

This article presents the possibility of using the classical Fenton process (Fe(II)/H2O2) to purify synthetic textile wastewater (COD=1872 mg O2/dm3, TOC=660 mg/dm3) containing azo dye Anilan Blue GRL 250% (200 mg/dm3) and Sodium Lauryl Sulphate (SLS) as anionic surfactant at a concentration of 95 mg/dm3. Model studies were carried out using RSM, obtaining a good fit of approximated values to experimental values (R2=0.9461 and R2adj=0.7379). For optimal process parameters (pH 3, Fe(II) 0.85 g/dm3, H2O2 14.5 g/dm3), complete decolourisation (<10 mg Pt/dm3) was achieved as well as a reduction in COD, TOC and SLS concentrations to 83%, 44% and 98%, respectively.

Sign in / Sign up

Export Citation Format

Share Document