关键词: DAMO, 甲烷, 传质模型

Abstract: Denitrification anaerobic methane oxidation (DAMO) is a recently discovered process in environmental science and engineering field. DAMO process releases a large of free energy, but DAMO microbial growth is extremely slow. The doubling time is as long as one month or more, which makes it difficult to attain DAMO enrichment culture. Methane is thought to be the key element on DAMO bacteria enrichment, because it is insoluble in water. A mathematical model of methane’s behavior in gas-liquid-bacteria phases was set up to study the effect of methane on DAMO bacteria enrichment. According to the model analysis, we obtained the relational expression between DAMO specific activity, methane partial pressure in gas phase and resistance of mass transfer that was confirmed by DAMO specific activity test.

Key words: DAMO, methane, mass transfer model