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
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
CLC Number:
Bo Liu,Bozhi Chen,Xinchun Ding,Dongdong Yan,Lingfeng Du. Study on iron-carbon combination to enhance the anaerobic digestion of residual sludge[J]. Industrial Water Treatment, 2020, 40(10): 47-50, 54.
刘波,陈博之,丁新春,阎懂懂,杜凌峰. 铁碳联合强化剩余污泥厌氧消化的研究[J]. 工业水处理, 2020, 40(10): 47-50, 54.