Journal
BIORESOURCE TECHNOLOGY
Volume 248, Issue -, Pages 29-36Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.06.152
Keywords
Anaerobic digestion; Food waste; Microbial communities; Methane
Funding
- National Natural Science Foundation of China [51578008]
- Projects in the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period [2014BAC27B01-03]
- found of Beijing Technology and Business University [LKJJ2016-13]
- Open Research Fund Program of Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry [CP-2017YB9, CP-2017-YB5]
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Food waste (FW) is rich in starch, fat, protein and cellulose. It is easy to decay and brings environmental pollution and other social problems. FW shows a high potential to produce methane by anaerobic digestion (AD) due to its high organic content. However, many inhibitors, such as accumulation of ammonia and volatile fatty acids (VFAs), usually result in inefficient performances and even process failure. Microorganisms play an important role in the process of hydrolysis, acidogenesis, acetogenesis and methanogenesis. This review provided a critical summary of microbial characteristics to obtain connects of microbial community structure with operational conditions at various states of AD, such as mesophilic and thermophilic, wet and dry, success and failure, pretreated or not, lab-scale and full-scale. This article emphasizes that it is necessary to analyze changes and mechanisms of microbial communities in unbalanced system and seek efficiency dynamic succession rules of the dominant microorganisms. (C) 2017 Published by Elsevier Ltd.
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