Oil-extracted Chlorella vulgaris biomass and glycerol bioconversion to methane via continuous anaerobic co-digestion with chicken litter

RENEWABLE ENERGY

卷:128

Article

Carlos Meneses-Reyes, Jose¹  Hernandez-Eugenio, Guadalupe¹  Huber, David H.^2,3  Balagurusamy, Nagamani⁴  Espinosa-Solares, Teodoro¹ 

[1] Univ Autonoma Chapingo, Lab Bioproc, Posgrad Ingn Agr & Uso Integral Agua, Chapingo 56230, Estado De Mexic, Mexico

[2] West Virginia State Univ, Gus R Douglass Inst, Institute, WV 25112 USA

[3] West Virginia State Univ, Dept Biol, Institute, WV 25112 USA

[4] Univ Autonoma Coahuila, Escuela Ciencias Biol, Lab Biorremediac, Torreon 27000, Coahuila, Mexico

关键词: Oil-extracted microalgae;    Glycerol;    Biodiesel residuals;    Mesophilic;    Specific methanogenic activity;   

DOI  :  10.1016/j.renene.2018.05.053

来源: Elsevier

【 摘 要 】

The objective of this work was to evaluate the performance of mesophilic continuous anaerobic co-digestion using oil-extracted microalgae (M) and glycerol (G) in co-digestion with chicken litter (CL). The process included the starting up and stabilization of continuous anaerobic bioreactors using CL as a feedstock and the corresponding adaptation to M-CL and M-G-CL feedstocks. The treatments were selected based on a previous report of our research team on Biochemical Methane Potential (BMP) evaluation, taking in consideration only the best M-G-CL feedstock ratios. The performance was evaluated by the Specific Methanogenic Activity (SMA); the best response (270.0 mL CH4 gVS (added) (-1)) was obtained with a triple co-digestion M-G-CL 30:3:67, which was 39.0% above the CL treatment. These findings have shown that the two main residuals from microalgae biodiesel production (G and M) can be used as a feedstock to improve methane production through anaerobic digestion. (C) 2018 Published by Elsevier Ltd.

【 授权许可】

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