TY - JOUR
T1 - Advanced oxidation of acid and reactive dyes
T2 - Effect of Fenton treatment on aerobic, anoxic and anaerobic processes
AU - Arslan-Alaton, Idil
AU - Gursoy, Betul Hande
AU - Schmidt, Jens Ejbye
PY - 2008
Y1 - 2008
N2 - The effect of untreated and Fenton-treated acid dyes (C.I. Acid Red 183 and C.I. Acid Orange 51) and a reactive dye (C.I. Reactive Blue 4) on aerobic, anoxic and anaerobic processes was investigated. The optimum Fe2+:H2O2 molar ratio was selected as 1:5 (4:hsp sp="0.25" mM:20:hsp sp="0.25"mM) for 10:hsp sp="0.25" min Fenton treatment at pH 3, resulting in reduced chemical oxygen demand and dissolved organic carbon removal efficiencies; only acetate was detected as a stable dye oxidation end product. During anaerobic digestion, 100, 29% and no inhibition in methane production was observed for the untreated blue, red and orange dyes, respectively. The inhibitory effect of the blue reactive dye on methane production was ∼21% after Fenton treatment. Neither untreated nor treated dyes exhibited an inhibitory effect on denitrification. Aerobic glucose degradation was inhibited by 23-29% by untreated dyes, whereas Fenton-treated dyes had no inhibitory effect on aerobic glucose degradation.
AB - The effect of untreated and Fenton-treated acid dyes (C.I. Acid Red 183 and C.I. Acid Orange 51) and a reactive dye (C.I. Reactive Blue 4) on aerobic, anoxic and anaerobic processes was investigated. The optimum Fe2+:H2O2 molar ratio was selected as 1:5 (4:hsp sp="0.25" mM:20:hsp sp="0.25"mM) for 10:hsp sp="0.25" min Fenton treatment at pH 3, resulting in reduced chemical oxygen demand and dissolved organic carbon removal efficiencies; only acetate was detected as a stable dye oxidation end product. During anaerobic digestion, 100, 29% and no inhibition in methane production was observed for the untreated blue, red and orange dyes, respectively. The inhibitory effect of the blue reactive dye on methane production was ∼21% after Fenton treatment. Neither untreated nor treated dyes exhibited an inhibitory effect on denitrification. Aerobic glucose degradation was inhibited by 23-29% by untreated dyes, whereas Fenton-treated dyes had no inhibitory effect on aerobic glucose degradation.
U2 - 10.1016/j.dyepig.2007.11.001
DO - 10.1016/j.dyepig.2007.11.001
M3 - Tidsskriftartikel
SN - 0143-7208
VL - 78
SP - 117
EP - 130
JO - Dyes and Pigments
JF - Dyes and Pigments
IS - 2
ER -