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Performance Evaluation of Mesophilic Anaerobic Digestion of Chicken Manure with Algal Digestate

发布日期:2019-01-24    字号:[ ]


论文题目《Performance Evaluation of Mesophilic Anaerobic Digestion of Chicken Manure with Algal Digestate》

论文作者:Na Duan , Xia Ran, Ruirui Li , Panagiotis G. Kougias , Yuanhui Zhang , Cong Lin,Hongbin Liu

论文摘要:Dilutionisconsideredtobeafastandeasilyapplicablepretreatmentforanaerobicdigestion (AD) of chicken manure (CM), however, dilution with fresh water is uneconomical because of the water consumption. The present investigation was targeted at evaluating the feasibility and process performance of AD of CM diluted with algal digestate water (AW) for methane production to replace tap water (TW). Moreover, the kinetics parameters and mass ?ow of the AD process were also comparatively analyzed. The highest methane production of diluted CM (104.39 mL/g volatile solid (VS)) was achieved with AW under a substrate concentration of 8% total solid (TS). The result was markedly higher in comparison with the group with TW (79.54–93.82 mL/gVS). Apart from the methane production, considering its energy and resource saving, nearly 20% of TW replaced by AW, it was promising substitution to use AW for TW to dilute CM. However, the process was susceptible to substrate concentration, inoculum, as well as total ammonia and free ammonia concentration.

关键词: anaerobic digestion; chicken manure; biogas; algal digestate; mass ?ow





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