摘要:以棘白菌素为研究对象,进行中温厌氧消化恒温摇床实验,测定不同的含固率(2%、3%、4%、5%)和接种比(1:2、1:3、1:5、1:10)下棘白菌素菌渣的pH、氨氮、COD、产甲烷量等指,通过比较不同含固率和接种比对棘白菌素菌渣产甲烷能力的影响,从而实现对菌渣厌氧发酵工艺条件的优化。根据研究结果,产甲烷能力在一定范围内与含固率和接种比均呈正相关。最佳条件是含固率为5%、接种比为1:2。但是,含固率过高会导致系统酸化明显,而接种比越大则意着成本越高。26642 毕业论文关键词:棘白菌素菌渣;厌氧发酵;含固率;接种比
Optimization of anaerobic fermentation conditions of bacteria residue
Abstract:The echinocandins as the research object, by mesophilic anaerobic digestion thermostatic shaker experiment, determinate different solid content (2%, 3%, 4%, 5%) and inoculation ratio (1:2, 1:3, 1:5, 1:10) under the echinocandin residue pH, ammonia, COD, methane production and other means and by comparing the effect of solid content and inoculation ratio of echinocandin residue methane production capacity, so as to realize the optimization of fermentation conditions of anaerobic bacteria residue. The results showed that in the range of study, the higher the solid content, the greater the inoculation ratio, the stronger the ability of methane production. The best condition is the solid content is 5%, inoculation ratio is 1:2. However, the high solid content will lead to obvious acidification of the system, and the greater the ratio of inoculation means that the higher the cost.
Keywords: echinocandins residue;anaerobic fermentation;solid content;inoculation ratio
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