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

doi:10.13209/j.0479-8023.2022.037

Acta Scientiarum Naturalium Universitatis Pekinensis ›› 2022, Vol. 58 ›› Issue (4): 680-686.DOI: 10.13209/j.0479-8023.2022.037

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

TAO Huchun^1,†, TONG Hao¹, WANG Jian^2,†, HUANG Yilong², ZHANG Lijuan¹, YANG Kai¹, DING Lingyun¹, QIAO Xuejiao¹, DOU Min¹, XU Nan¹

1. Shenzhen Key Laboratory for Heavy Metal Remediation and Reclamation, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055

2. Shenzhen Water Planning & Design Institute Co Ltd, Shenzhen 518001

Received:2021-05-17 Revised:2021-06-14 Online:2022-07-20 Published:2022-07-20
Contact: TAO Huchun, E-mail: taohc(at)pkusz.edu.cn, WANG Jian, E-mail: wangj(at)swpdi.com

碳氮比对A/O-MBR工艺中污水脱氮除磷的影响研究

陶虎春^1,†, 佟浩¹, 王健^2,†, 黄奕龙², 张丽娟¹, 杨凯1, 丁凌云1, 乔雪姣¹, 豆敏¹, 许楠¹

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

通讯作者: 陶虎春, E-mail: taohc(at)pkusz.edu.cn, 王健, E-mail: wangj(at)swpdi.com
基金资助:
深圳市科技计划基础研究(JCYJ20200109140616774)资助

Abstract

Abstract:

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.

Key words: A/O-MBR, carbon-to-nitrogen ratio, nitrogen removal, phosphate removal, metabolites

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。

关键词: A/O-MBR, 碳氮比, 脱氮, 除磷, 代谢物

TAO Huchun, TONG Hao, WANG Jian, HUANG Yilong, ZHANG Lijuan, YANG Kai, DING Lingyun, QIAO Xuejiao, DOU Min, XU Nan. Effects of Carbon-to-Nitrogen Ratio on Nitrogen and Phosphate Removal in A/O-MBR Wastewater Treatment Process[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2022, 58(4): 680-686.

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. 碳氮比对A/O-MBR工艺中污水脱氮除磷的影响研究[J]. 北京大学学报自然科学版, 2022, 58(4): 680-686.

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

碳氮比对A/O-MBR工艺中污水脱氮除磷的影响研究

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