Key Laboratory of New Materials and Facilities for Rural Renewable Energy, Ministry of Agriculture, Collaborative Innovation Center of Biomass Energy, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China.
Key Laboratory of New Materials and Facilities for Rural Renewable Energy, Ministry of Agriculture, Collaborative Innovation Center of Biomass Energy, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China.
Bioresour Technol. 2019 Nov;292:122052. doi: 10.1016/j.biortech.2019.122052. Epub 2019 Aug 24.
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, 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).
这项工作研究了碳酸铵预处理对序批式厌氧消化过程中沼气产生的影响。结果表明，添加碳酸氢铵（8%，w/w）可获得最高的沼气产量 14690 毫升，产率为 222.6 毫升/克，比未预处理（对照实验）高出 31%。有趣的是，COD 去除率提高了 100%。此外，它还有助于稳定厌氧消化玉米秸秆的 pH 值。基于这些结果，修正的 Gompertz 方程非常好地拟合了累积沼气产生曲线，相关系数较高（>0.994）。
