Effect of Initial Azo Dye Concentration and Biomass Acclimation on Sludge Digestion and Dye Co-treatment

被引:12
作者
Ozkan-Yucel, Umay Gokce [1 ]
Gokcay, Celal Ferdi [2 ]
机构
[1] Selcuk Univ, Dept Environm Engn, TR-42031 Konya, Turkey
[2] Middle E Tech Univ, Dept Environm Engn, TR-06531 Ankara, Turkey
关键词
Anaerobic digestion; Dyes; Textiles; Waste sludge; TEXTILE WASTE-WATER; ANAEROBIC-AEROBIC TREATMENT; REACTIVE DYEBATH EFFLUENTS; ELECTROCHEMICAL OXIDATION; BIOLOGICAL TREATMENT; DECOLORIZATION; DEGRADATION; REDUCTION; OZONATION; TOXICITY;
D O I
10.1002/clen.200900165
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The effect of a reactive azo dye (the hydrolyzed form of Reactive Orange 107, HRO107) on the digestion of municipal waste sludge (WS) was studied. The study also focused Oil the effect: of acclimation of the anaerobic mixed culture on dye treatment. Anaerobic batch assays were carried out in serum bottles under mesophilic conditions. Unacclimated and acclimated anaerobic mixed cultures were used for the study. Both unacclimated and acclimated anaerobic cultures completely reduced HRO107 during WS digestion. Inhibitory HRO107 concentration was found to be 800 mg/L for unacclimated mixed culture. Acclimation increased the inhibitory concentration level from 800 to 3200 mg/L. Sulfanilic acid and four other unidentified dye reduction end products were detected at the end of the assays. The results of this study indicated that anaerobic municipal WS digesters have the potential to be a cost efficient and effective pre treatment method.
引用
收藏
页码:387 / 393
页数:7
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