کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
683022 | 888994 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of classic methanogenic inhibitors on the quantity and diversity of archaeal community and the reductive homoacetogenic activity during the process of anaerobic sludge digestion
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, the microbial response of anaerobic sludge digestion to the addition of two classic methanogenic inhibitors (chloroform, 2-bromoethanesulfonate) was investigated. Both the toxicants showed their effectiveness on CH4 production, whereas the hydrogen responses and acetate accumulations were elicited to different extent. Terminal restriction fragment length polymorphism analyses in combination with clone library showed that both toxicants inhibited not only methanogenic activity but the structure of methanogenic communities. The acetoclastic Methanosaetaceae was more sensitive than hydrogenotrophic Methanobacteriales and Methanomicrobiales. Interestingly, as reflected by the favorable thermodynamic condition and the increase of formyltetrahydrofolate synthetase (fhs) gene copy numbers, reductive homoacetogenesis from H2/CO2 was also stimulated by selective inhibition of methanogenesis with 2-bromoethanesulfonate (BES).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 101, Issue 8, April 2010, Pages 2600-2607
Journal: Bioresource Technology - Volume 101, Issue 8, April 2010, Pages 2600-2607
نویسندگان
Kewei Xu, He Liu, Jian Chen,