School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China; Beijing Key Laboratory on Disposal and Resource Recovery of Industry Typical Pollutants, University of Science and Technology Beijing, Beijing 100083, PR China.
School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China.
Bioresour Technol. 2021 Apr;325:124693. doi: 10.1016/j.biortech.2021.124693. Epub 2021 Jan 11.
In this study, the effects of adding different food waste proportions (volatile solids ratio of 3:7, 5:5, 7:3) to tylosin fermentation dreg on anaerobic digestion were investigated. The results showed that the co-digestion group (294-399 mL·g-VS) increased methane production by 14.8%-55.5% compared with tylosin fermentation dreg alone-digestion (256 mL·g-VS). The correlation analysis showed that pH, total volatile fatty acids and acetic acid were the most important factors affecting cumulative methane production. Tylosin in the solid and liquid phases decreased significantly after anaerobic digestion, indicating that tylosin could be effectively removed by co-digestion, and the total removal rate was 68.2%-83.7%. Therefore, due to the satisfactory methane yield and the tolerable tylosin removal rate, it is feasible to make the co-digestion of tylosin fermentation dreg and food waste.
本研究考察了向泰乐菌素发酵废渣中添加不同比例（挥发性固体比为 3:7、5:5、7:3）的食物垃圾对厌氧消化的影响。结果表明，与单独消化泰乐菌素发酵废渣（256 毫升·克-VS）相比，共消化组（294-399 毫升·克-VS）的甲烷产量增加了 14.8%-55.5%。相关性分析表明，pH 值、总挥发性脂肪酸和乙酸是影响累积甲烷产量的最重要因素。厌氧消化后，固相中泰乐菌素和液相中的泰乐菌素含量显著下降，表明共消化可以有效去除泰乐菌素，总去除率为 68.2%-83.7%。因此，由于甲烷产量令人满意且泰乐菌素去除率可接受，因此泰乐菌素发酵废渣与食物垃圾共消化是可行的。
