کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4997560 | 1459911 | 2017 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microbial population dynamics in continuous anaerobic digester systems during start up, stable conditions and recovery after starvation
ترجمه فارسی عنوان
پویایی جمعیت میکروبی در سیستم های هیدرژی بی هوازی مداوم در هنگام شروع، شرایط پایدار و بهبودی پس از گرسنگی
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کلمات کلیدی
تولید بیوگاز، هضم بی هوازی تجزیه و تحلیل جامعه میکروبی، دینامیک جمعیت، گرسنگی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The evolution and population dynamics of complex anaerobic microbial communities in anaerobic digesters were investigated during stable operation and recovery after prolonged starvation. Three thermophilic reactor systems fed with cattle manure were operated continuously in parallel for 167Â days. Significant changes in the microbial communities were observed for both the bacterial and archaeal populations as the reactor systems were subjected to changing feeding regimes. The ecosystems developed from being relatively similar in structure to more specialised communities, with large population shifts within the acetogenic and methanogenic communities, which appeared to shift towards the hydrogenotrophic methanogenesis pathway. All reactor systems showed signs of adaptation to a harsher environment under high VFA, H2S and ammonia concentrations, but remained at a lower degree of stability after 45Â days of recovery compared to stable period of operation before starvation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 232, May 2017, Pages 313-320
Journal: Bioresource Technology - Volume 232, May 2017, Pages 313-320
نویسندگان
Nadieh de Jonge, Veronica Moset, Henrik Bjarne Møller, Jeppe Lund Nielsen,