Research Interests:
This work aims to study the treatment of a dye bearing effluent from an agate-processing plant by sodium hypochlorite (NaClO) oxidation. The work includes effluent characterisation, chemical oxidation experiments and evaluation of... more
This work aims to study the treatment of a dye bearing effluent from an agate-processing plant by
sodium hypochlorite (NaClO) oxidation. The work includes effluent characterisation, chemical
oxidation experiments and evaluation of degradation products by Gas Chromatography coupled to
Mass Spectroscopy/Ion Trap (GC/MS/IT). The effluent presents a very intense colour (kmaxc550
nm), low surface tension and some organic content. Colour removal can be carried out in a few
minutes using 1.3 ml/l of NaClO at pH 7.0. Organic dyes are not completely oxidised by NaClO and
many degraded compounds were found in the treated effluent, including organochlorides. The use of
chlorine in the effluent treatment is discussed in terms of pollutants degradation and environmental
hazards.
sodium hypochlorite (NaClO) oxidation. The work includes effluent characterisation, chemical
oxidation experiments and evaluation of degradation products by Gas Chromatography coupled to
Mass Spectroscopy/Ion Trap (GC/MS/IT). The effluent presents a very intense colour (kmaxc550
nm), low surface tension and some organic content. Colour removal can be carried out in a few
minutes using 1.3 ml/l of NaClO at pH 7.0. Organic dyes are not completely oxidised by NaClO and
many degraded compounds were found in the treated effluent, including organochlorides. The use of
chlorine in the effluent treatment is discussed in terms of pollutants degradation and environmental
hazards.