A CSTR reactor was used to study the performance and microbial community of an ammonia oxidation Feammox bioreactor under iron reduction conditions.The reactor was operated at 32℃ with influent pH of 7.0±0.1.After 130-days cultivation,NH4+-N removal rate was 40.97%,and Fe3+ conversion was up to 31.86%.The effect of different pH and temperature conditions on the Feammox reaction was investigated by analyzing the variation of NH4+-N and Fe3+ conversions.The results showed that the optimum pH condition was 7.0 and the optimum temperature was 30℃.Furthermore,analysis of high-throughput sequencing technology showed that the main dominant phyla were Amoebacteria,Acidobacteria,Phyllostomycetes and Green Bacteria.
关键词
厌氧铁氨氧化/工艺启动与运行/温度/pH/氮素转化
Key words
Feammox/Process start-up and operation/Temperature/pH/Nitrogen transformation
维普
万方数据