Naslov
Fenton type processes for minimization of organic content in coloured wastewaters. Part I : processes optimization

Autori
Kušić, Hrvoje ; Lončarić Božić, Ana ; Koprivanac, Natalija

Izvornik
Dyes and pigments (0143-7208) 74 (2007), 2; 380-387

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
coloured wastewater; reactive dyes; Fenton process; Fenton “ like” process; process optimization

Sažetak
This study was focussed on application of Fenton (Fe2+/H2O2) and Fenton "like" processes (Fe3+/H2O2 and Fe0/H2O2) for minimization of organic content of coloured synthetic wastewaters. Two reactive dyes, C.I. Reactive Blue 49 with anthraquinone chromophore and C.I. Reactive blue 137 with azo chromophore were used as model organic pollutants. Fenton type processes were investigated in order to establish optimal operating conditions for maximal degradation of investigated synthetic coloured wastewaters ; pH, concentration of iron salts or iron powder and ratio of Fenton reagent. Degradation of studied dyes as organic pollutants was monitored on the basis of decolourization and mineralization extents of model solutions, determined by UV/VIS spectrophotometric, and TOC and AOX analysis, respectively. Colour removal over 95 % was achieved by all applied processes, while mineralization extents ranged between 34-72 % depending of dye structure and applied AOP.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA