期刊
BIORESOURCE TECHNOLOGY
卷 292, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.122052
关键词
Ammonium bicarbonate; Pretreatment; Corn stalk; Anaerobic digestion; Biogas
资金
- Natural Science Foundation of China [51706063]
- Special Fund for Agro-scientific Research in the Public Interest [201403019-1]
- Young Key Teachers Training Program of Henan Higher Education Institutions [2018GGJS028]
- Henan Youth Talent Project [2019HYTP026]
This work studied the effects of ammonium carbonate pretreatment on biogas production during sequential anaerobic digestion. The results showed that the addition of ammonium bicarbonate (8%, w/w) obtained the highest biogas production of 14,690 mL with a yield of 222.6 mL g(-1), which was 31% higher than that of un-pretreated (control experiment). Interestingly, the COD removal was increased by 100%. Furthermore, it was also helpful in stabilizing the pH of anaerobically digested corn stalk. Based on the results, the modified Gompertz equation fitted the cumulative biogas production curves very well, with high correlation coefficients (> 0.994).
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