Treatment of reactive dyes and textile finishing wastewater using Fenton's oxidation for reuse
by Sureyya Meric, Giusy Lofrano, Vincenzo Belgiorno
International Journal of Environment and Pollution (IJEP), Vol. 23, No. 3, 2005

Abstract: Fenton's oxidation (FO) was used to decolourise and degrade some reactive dyes (Remazol Black 5, Remazol Red, Remazol Blue, Remazol Yellow) and raw textile finishing industry effluents (S1, S2, S3) containing mainly reactive dyes. The operational conditions for pH varied between 2.5 and 4.0 while temperature ranged from 30°C to 50°C. The concentrations of FeSO4 and H2O2 varied to a wide range (200–600 mg/l of FeSO4, 300–1000 mg/l of H2O2) depending on the type of the dyes and their mixture and textile additives used in the process. FO is highly effective for colour removal (>99%) for reactive dyes and (87–94%) for textile finishing wastewater. It can be applied as a pretreatment and the remaining total dissolved solids (TDS) can be removed by an additional advanced process, e.g. membrane process.

Online publication date: Tue, 19-Apr-2005

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