کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7067231 1459883 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fermentation performance optimization in an ectopic fermentation system
ترجمه فارسی عنوان
بهینه سازی عملکرد تخمیر در یک سیستم تخمیری خارج رحمی
کلمات کلیدی
سیستم تخمیری خارج رحمی، بهینه سازی عملکرد، باکتری های ترموفیل، تجزیه و تحلیل میکروبیولوژی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Ectopic fermentation systems (EFSs) were developed for wastewater treatment. Previous studies have investigated the ability of thermophilic bacteria to improve fermentation performance in EFS. Continuing this research, we evaluated EFS performance using principle component analysis and investigated the addition of different proportions of cow dung. Viable bacteria communities were clustered and identified using BOX-AIR-based repetitive extragenic palindromic-PCR and 16S rDNA analysis. The results revealed optimal conditions for the padding were maize straw inoculated with thermophilic bacteria. Adding 20% cow dung yielded the best pH values (6.94-8.56), higher temperatures, increased wastewater absorption, improved litter quality, and greater microbial quantities. The viable bacteria groups were enriched by the addition of thermophilic consortium, and exogenous strains G21, G14, G4-1, and CR-15 were detected in fermentation process. The proportion of Bacillus species in treatment groups reached 70.37% after fermentation, demonstrating that thermophilic bacteria, especially Bacillus, have an important role in EFS, supporting previous predictions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 260, July 2018, Pages 329-337
نویسندگان
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