Details

Autor(en) / Beteiligte

• Abdullah Yasar
• Nasir Ahmad
• Aamir Amanat Ali Khan
• Anwer Yousaf

Titel

Decolorization of Blue CL-BR dye by AOPs using bleach wastewater as source of H2O2

Ist Teil von

• 环境科学学报（英文版）, 2007, Vol.19 (10), p.1183-1188

Ort / Verlag

Directorate of Research and Development, University of the Punjab,Lahore-Pakistan, 41-Kamran Block, Allama Iqbal Town, Lahore-Pakistan

Erscheinungsjahr

2007

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• X7; This research was focused on the investigation of the efficacy of advanced oxidation processes (Fenton, ozonation and UV/H2O2)for decolorization of reactive azo dye (Blue CL-BR) using bleach wastewater as possible source of H2O2. All the experiments were performed on the laboratory scale set-up. Thc results showed that colour removal efficiencies by UV or bleach (H2O2) alone were not so efficient. Fenton process with bleach wastewater was found to be the most effective at process conditions such as pH of 3 and H2O2/Fe2+ratio of 24:1, resulting in 64% colour removal. Almost complete colour removal, i.e., 99% and 95% were achieved by UV/H2O2 and UV/bleach wastewater in 30 and 60 min, respectively. Ozonation proved an efficient method for decolorization of Blue CL-BR dye at alkaline pH. It was possible to achieve 98% colour removal with 30 min of ozonation at pH 9. The colour removal of dye was found to follow first order kinetics.