摘要：

研究了单独加铁、单独加碳和铁碳联合投加对剩余污泥厌氧消化的影响。结果表明，在水解酸化过程中，铁碳联合投加组SCOD降解率最高，乙酸含量也最大，占VFAs的50.4%；在厌氧消化过程中，铁碳联合投加组产甲烷量最高，比对照组提高了35.0%。从微生物角度分析，铁碳联合投加促进了微生物中甲烷鬃毛菌的生长，丰度达到52.2%。铁碳联合投加可以强化剩余污泥厌氧消化。

关键词: 铁碳联合, 水解酸化, 厌氧消化, 生物群落分布

Abstract:

The effects of iron addition, carbon addition and iron-carbon addition on the anaerobic digestion of residual sludge were studied. The results showed that the iron-carbon combination group had the highest degradation rate of SCOD and its acetic acid content was the largest which accounting for 50.4% of the VFAs during the hydrolysis acidification process. In the anaerobic digestion process, the iron-carbon combination group had the highest methanogenesis, which increased 35.0% compared to the control group. From the microbiological point of view, the abundance of M. melilogen in the iron-carbon combination group reached 52.2%. Iron-carbon combination was beneficial to the anaerobic digestion of residual sludge.

Key words: iron-carbon combination, hydrolysis acidification, anaerobic digestion, biome distribution

中图分类号: 

• X703