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

Na Duan*, Xia Ran, Ruirui Li, Panagiotis Kougias, Yuanhui Zhang, Cong Lin, Hongbin Liu

*Corresponding author for this work

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Dilution is considered to be a fast and easily applicable pretreatment for anaerobic digestion (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 flow 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.
Original languageEnglish
Article number1829
Issue number7
Number of pages11
Publication statusPublished - 2018


  • anaerobic digestion
  • chicken manure
  • biogas
  • algal digestate
  • mass flow
  • Biofuel and biomass resources
  • Fuel processing industry
  • Environmental issues
  • Biotechnology industry
  • Products and commodities
  • ammonia
  • biofuel
  • waste management
  • substrate concentration
  • mesophilic anaerobic digestion
  • fresh water
  • water consumption
  • algal digestate water
  • tap water
  • AD process
  • methane production
  • free ammonia concentration
  • Technology
  • T

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