کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10395240 | 888972 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microbial community dynamics in mesophilic anaerobic co-digestion of mixed waste
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کلمات کلیدی
Denaturing gradient gel electrophoresis (DGGE) - الکتروفورز ژل گرادیان (DGGE)Canonical correspondence analysis (CCA) - تجزیه و تحلیل مکاتبات کاننیکال (CCA)Municipal solid waste (MSW) - زباله های شهری (MSW)Microbial community structure - ساختار جامعه میکروبیMesophilic anaerobic digestion - هضم بی هوازی مازوفیلی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper identifies key components of the microbial community involved in the mesophilic anaerobic co-digestion (AD) of mixed waste at Rayong Biogas Plant, Thailand. The AD process is separated into three stages: front end treatment (FET); feed holding tank and the main anaerobic digester. The study examines how the microbial community structure was affected by the different stages and found that seeding the waste at the beginning of the process (FET) resulted in community stability. Also, co-digestion of mixed waste supported different bacterial and methanogenic pathways. Typically, acetoclastic methanogenesis was the major pathway catalysed by Methanosaeta but hydrogenotrophs were also supported. Finally, the three-stage AD process means that hydrolysis and acidogenesis is initiated prior to entering the main digester which helps improve the bioconversion efficiency. This paper demonstrates that both resource availability (different waste streams) and environmental factors are key drivers of microbial community dynamics in mesophilic, anaerobic co-digestion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 102, Issue 5, March 2011, Pages 4021-4027
Journal: Bioresource Technology - Volume 102, Issue 5, March 2011, Pages 4021-4027
نویسندگان
Savaporn Supaphol, Sasha N. Jenkins, Pichamon Intomo, Ian S. Waite, Anthony G. O'Donnell,