摘要
文章在中温（35℃）条件下对丙氨酸菌渣进行厌氧消化试验,比较5种食微比（0.5,1,2,4,8）接种对500m L厌氧消化体系的p H值,TS,VS,COD,氨氮,VFA,产气量和甲烷含量的影响。结果表明,在F/M=2时,系统的TS,VS去除率,COD去除总量,产气总量和平均甲烷含率都为最高。其中,反应p H值为7.4～7.9,TS和VS去除率分别达到46.67%和26.64%,COD去除总量达到4029 mg,产气总量达到840 m L,甲烷含率为50.2%。此外,反应过程中氨氮浓度稳定在2.4～2.8 g·L-1,表明氨基酸菌渣处理过程中的氨氮产生得到了控制。
Bacteria residue from Alanine production was treated by anaerobic digestion at 35℃. The effects of 5 food to microorganism ratio（ F / M 0. 5,1,2,4,8） on p H,TS,VS,COD,ammonia nitrogen,VFA,gas output and methane content,were compared. The results showed that the F / M of 2 obtained the best of TS and VS degradation rate,COD removal efficiency,total gas production and average methane content,for which the p H were 7. 4 ～ 7. 9,the TS and VS degradation rate reached 46. 67% and 26. 64% respectively,the total COD removal was 4029 mg,total gas production was 840 m L,and the biogas methane content was 50. 2%. The ammonia nitrogen concentration was maintained within 2. 4 ～ 2. 8g·L- 1,which indicated the ammonia production was effectively controlled in the anaerobic digestion process.
出处
《中国沼气》
北大核心
2016年第2期13-17,共5页
China Biogas
关键词
丙氨酸菌渣
厌氧消化
食微比
产甲烷能力
bacterial residues from alanine production
anaerobic digestion
food to microorganism ratio
methane production
