摘要
在高、低碳氮比情况下,探究A/O-MBR现场工艺中污水氨氮、总氮和总磷的去除效率及其变化规律。研究结果显示,随着进水碳氮比升高,出水中总氮去除效率由(44.1±8.9)%提升至(78.5±7.9)%,总磷去除效率未受影响。差异性代谢产物分析表明,提升碳氮比能够增强菌群的氨基酸代谢功能,同时促进核黄素的生物合成,共同提升污水中氮的去除效率。
The changing profiles of NH4+-N,total nitrogen(TN)and total phosphate(TP)were investigated in the A/O-MBR process at high and low carbon-to-nitrogen ratios.By elevating the carbon-to-nitrogen ratio,there was an increase in the removal efficiency of TN from 44.1%±8.9%to 78.5%±7.9%,while the removal efficiency remained unchanged for TP.Metabolite analyses revealed that enhanced metabolism of amino acids contributed significantly to efficient nitrogen removal from wastewater and the up-regulation of riboflavin biosynthesis,further improving the water quality.
作者
陶虎春
佟浩
王健
黄奕龙
张丽娟
杨凯
丁凌云
乔雪姣
豆敏
许楠
TAO Huchun;TONG Hao;WANG Jian;HUANG Yilong;ZHANG Lijuan;YANG Kai;DING Lingyun;QIAO Xuejiao;DOU Min;XU Nan(Shenzhen Key Laboratory for Heavy Metal Remediation and Reclamation,School of Environment and Energy,Peking University Shenzhen Graduate School,Shenzhen 518055;Shenzhen Water Planning&Design Institute Co Ltd,Shenzhen 518001)
出处
《北京大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2022年第4期680-686,共7页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
深圳市科技计划基础研究(JCYJ20200109140616774)资助。
关键词
A/O-MBR
碳氮比
脱氮
除磷
代谢物
A/O-MBR
carbon-to-nitrogen ratio
nitrogen removal
phosphate removal
metabolites
