%0 Journal Article
%T Effects of Different Co-substrates on Degradation of Nitrophenols Using Upflow Anaerobic Sludge Bed (UASB) Reactors<br>不同共基质条件下上流式厌氧污泥床反应器中硝基酚的降解研究
%A JIANG Li-na
%A SHE Zong-lian
%A JIN Chun-ji
%A WANG Lei
%A YU Jing
%A <br>姜丽娜
%A 佘宗莲
%A 金春姬
%A 王磊
%A 于静
%J 环境科学
%D 2007
%I 
%X The removal efficiencies of 3-nitrophenol (3-NP) and 2,6-dinitrophnol (2,6-DNP) were investigated in two lab-scale upflow anaerobic sludge bed (UASB) reactors using two different co-substrates. Initially, glucose was used as co-substrate and followed by sodium acetate. The results showed that glucose was found to be a better co-substrate for 3-NP degradation as compared to sodium acetate. While for the degradation of 2,6-dinitrophenol, sodium acetate was better. For the study of 3-NP degradation, input COD concentration was kept as 2500 mg/L and hydraulic retention time (HRT) was kept as 26 h with glucose as co-substrate. Maximum 3-NP concentration was 254.6mg/L and 3-NP removal efficiencies were always more than 99.0%. While HRT was 30h with sodium acetate as co-substrate, maximum 3-NP concentration was 71.6mg/L and over 90.0% 3-NP removal efficiencies could be obtained. For the study of 2,6-DNP degradation, HRT was 35h using the same input COD concentration as 3-NP degradation. The maximum 2,6-DNP concentration was 170.0mg/L and 2,6-DNP removal efficiencies were always more than 98.0% using glucose as co-substrate. While HRT was 30h with sodium acetate as co-substrate, maximum 2,6-DNP concentration was 189.5mg/L and over 99.2% 2,6-DNP removal efficiencies could be obtained.
%K UASB
%K 3-nitrophenol
%K 2
%K 6-dinitrophenol
%K co-substrates<br>UASB
%K 3-硝基酚
%K 2
%K 6-二硝基酚
%K 共基质
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=E6CED71DF8DC1FE0&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=F3090AE9B60B7ED1&sid=13DBB7F2E4FCEC67&eid=A546221D94E329E5&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=27