Anaerobic co-digestion of food waste and straw for biogas production

Zihan Yong, Yulin Dong, Xu Zhang and Tianwei Tan

Renewable Energy, 2015, vol. 78, issue C, 527-530

Abstract: The experimental biochemical methane potentials (BMP) of typical food waste (FW) and straw from northern China were individually measured in a 1 L enclosed reactor at 35 °C, and were 0.26 and 0.16 m3/kg-VS (volatile solids), respectively. Lab-scale mixtures of different FW and straw composition were conducted with a total organic load of 5 g VS/L. The optimum mixing ratio of FW to straw appears to be close to 5:1, and the methane production yield (MPY) reached 0.392 m3/kg-VS, i.e., increased by 39.5% and 149.7% compared with individual digestion results, respectively. Moreover, the gas production (GP) and methane content was reaching 0.58 m3/kg-VS and 67.62%, respectively. Further study about the optimal straw particle size was explored, and the recommended size range of straw was 0.3–1 mm for the economical and energy-saving consideration.

Keywords: Anaerobic co-digestion; Food waste; Straw; Methane production yield; Cellulose; Biogas (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (31)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:78:y:2015:i:c:p:527-530

DOI: 10.1016/j.renene.2015.01.033

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