碳氮比对A/O-MBR工艺中污水脱氮除磷的影响研究  

Effects of Carbon-to-Nitrogen Ratio on Nitrogen and Phosphate Removal in A/O-MBR Wastewater Treatment Process

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)

机构地区：[1]深圳市重金属污染控制与资源化重点实验室,北京大学深圳研究生院环境与能源学院,深圳518055 [2]深圳市水务规划设计院股份有限公司,深圳518001

出　　处：《北京大学学报（自然科学版）》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。

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.

关 键 词：A/O-MBR 碳氮比 脱氮 除磷 代谢物 

分 类 号：X703[环境科学与工程—环境工程]