Photooxidation of a reactive azo-dye from the textile industry using UV/H2O2 technology: process optimization and kinetics
-
- SUDARJANTO G.
- Advanced Wastewater Management Centre, The University of Queensland
-
- KELLER-LEHMANN B.
- Advanced Wastewater Management Centre, The University of Queensland
-
- KELLER J.
- Advanced Wastewater Management Centre, The University of Queensland
抄録
The homogeneous advanced oxidation process of UV/H2O2 was utilized to decolourize CI Reactive Red 195A (RR195A) as one of the most used dyes in the textile industry in Queensland. The UV radiation source was a low-pressure mercury arc lamp (60W emitting at 253.7nm). In this study, the effects of initial hydrogen peroxide (H2O2) dosage, dye concentration, pH and temperature were examined to find out the optimum operating conditions of the treatment process. Complete decolourization was achieved in the relatively short time of 20-30 minutes irradiation. Faster decolourization was achieved at low pH and high temperature. The removal rate increased with increasing initial concentration of H2O2 up to an optimum value. The decolourization reaction was found to follow at least initially first order kinetics with respect to the dye concentration. However, even after near complete removal of the active dye from the solution, approximately 60% of the COD was still remaining, indicating only partial breakdown of the dye molecule. In general, the result indicates that the UV/H2O2 technology proved to have good potential for removing dyestuff from wastewater but further treatment might be necessary to achieve complete mineralization of the organic intermediates.
収録刊行物
-
- Journal of Water and Environment Technology
-
Journal of Water and Environment Technology 3 (1), 1-7, 2005
公益社団法人 日本水環境学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001205178818432
-
- NII論文ID
- 130000099869
-
- ISSN
- 13482165
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可