Impact of supportive materials on syntrophic propionate and acetate enrichments under high-ammonia

Work performed with the aim of increasing the fundamental understanding of the addition of supportive materials on the anaerobic acetate and propionate degradation, and on methane production by syntrophic communities under high ammonia and mesophilic conditions. To specifically focus on the syntrophic microorganisms and their interactions, highly enriched syntrophic communities of acid-oxidizing bacteria (SPOB and SAOB) and hydrogenotrophic methanogens were used in batch trials containing either the conductive materials graphene powder or iron oxide (II, III) nanoparticles, or non-conductive zeolite clinoptilolite.

本研究旨在深化对高氨、中温条件下，辅助材料添加对厌氧乙酸盐、丙酸盐降解以及互生群落（syntrophic communities）产甲烷过程的基础认知。为精准聚焦于互生微生物（syntrophic microorganisms）及其相互作用，本研究采用由高度富集的产酸氧化细菌（acid-oxidizing bacteria，SPOB、SAOB）与氢营养型产甲烷古菌（hydrogenotrophic methanogens）组成的互生群落，开展了添加导电材料石墨烯粉末（graphene powder）、氧化铁(II, III)纳米颗粒（iron oxide (II, III) nanoparticles）或非导电材料斜发沸石（zeolite clinoptilolite）的批次试验。