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

作者：Yong, Zihan; Dong, Yulin; Zhang, Xu^*; Tan, Tianwei

来源：Renewable Energy, 2015, 78: 527-530.

DOI：10.1016/j.renene.2015.01.033

• Anaerobic co-digestion
• Food waste
• Straw
• Methane production yield
• Cellulose
• Biogas

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 degrees C, and were 0.26 and 0.16 m(3)/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 m(3)/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 m(3)/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.

• 出版日期2015-6
• 单位北京化工大学