Volume No. 7 Issue No.: 2A Page No.: 827-837 Oct. - Dec. 2012

 

PHOTOCATALYTIC OXIDATION OF ANAEROBICALLY DEGRADED REACTIVE RED 2 DYE BATH EFFLUENT

 

Balamurugan B.*1 and Kannadasan T.2

1. Department of Biotechnology and Chemical Engineering, Kalasalingam University, Anand Nagar, Krishnankoil (INDIA) 2. Department of Chemical Engineering, Coimbatore Institute of Technology, Coimbatore (INDIA)

 

Received on : August 03, 2012

 

ABSTRACT

 

The present study describes the advanced oxidation (Photo catalytic oxidation) of an anaerobically degraded textile dye bath effluent containing reactive red 2 dye by combined UV and hydrogen peroxide. The reactor used in this study is a batch laboratory-scale photo-reactor equipped with a low-pressure mercury lamp. Different initial dosages of hydrogen peroxide at variable TiO2 concentrations were used. The degradation of secondary metabolites formed during the anaerobic degradation was measured in terms of Chemical Oxygen Demand (COD) reduction. Within 5 hours of exposure time at 200 rpm stirrer speed with 30 mmolL-1 H2O2 concentration, 350 mg L-1M TiO2 concentration and pH 3 the COD reduction was appreciable with 97% COD reduction based on the inlet COD to the photocatalytic reactor.

 

Keywords : UV, H2O2, TiO2, COD, Textile dye

 

 

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