Research progress in microbial anaerobic methane oxidation coupled to denitrification—A review

Abstract:

Abstract:The process of denitrifying anaerobic methane oxidation (DAMO)，which uses methane as electron donor for denitrification，can achieve nitrogen remove of wastewater and simultaneously reduce the emission of methane．The research of DAMO mechanism focuses on two pathways -the reverse methanogenesis coupled denitrification and the nitritedependent anaerobic methane oxidation (n-damo)．Considering that DAMO process makes a significant contribution to global carbon and nitrogen cycling，our review summarizes the progresses of DAMO in recent years and focuses on the enrichment culture of microorganism，especially the microbiological characteristic of enrichment containing M．oxyfera．The microbiological mechanisms and parameters of the process are also reviewed． On this basis，some practical problems and prospects in the engineering application of the process are also discussed．