Study on Biodegradation of Azo Dye by Thermophilic Anaerobic Process
Biodegradation of Reactive Red 2(RR2) by anaerobic process UASB was investigated under thermophilic condition such as 55±1℃. The quasi-steady state of the UASB reactor was achieved after 92 running days when the conditions were as follows: hydraulic retention time (HRT) 12 h, salinity 50000 mg/L, COD 1000 mg/L, RR2 100 mg /L. The removal efficiencies of COD and RR2 were about 20％ and 92％, respectively. High performance liquid chromatography (HPLC) and gas chromatography-mass spectrometer (GC/MS) were used to inspect the products generating during the degradation process of RR2, and the mechanism of RR2 removal was also revealed. The reductive cleavage of the azo linkage, which resulted in dye decolourisation and production of aromatic amine was brought about by thermophilic salt-tolerant anaerobic granular sludge and then some aromatic amines degraded through hydrolysis or oxidation and released NH3.
biodegradation Reactive Red 2(RR2) thermophilic upflow anaerobic sludge blanket (UASB) reactor
Xiang Hu Huan Gao Yao Zhang Yue-xi Zhou Jin-yuan Jiang
Department of Environmental Science & Engineering Beijing University of Chemical Technology Beijing Chinese Research Academy of Environmental Sciences Beijing 100012,P R China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）