MABR快速富集HN-AD菌强化处理高氨氮废水

罗晓静; 肖芃颖; 康宝文; 周靖; 封丽; 赵天涛

doi:10.13205/j.hjgc.202009018

MABR快速富集HN-AD菌强化处理高氨氮废水

doi: 10.13205/j.hjgc.202009018

1. 重庆理工大学化学化工学院, 重庆 400054;
2. 重庆市环境科学研究院, 重庆 401147

基金项目:

国家自然科学基金（51708077）。

详细信息

作者简介:
罗晓静(1992-),女,硕士研究生,主要研究方向为污水生物脱氮技术。jing15123153358@163.com

通讯作者:
肖芃颖(1987-),女,博士,副教授,主要研究方向为污水好氧生物处理理论与技术。xiaopengying36@cqut.edu.cn

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出版历程
- 收稿日期: 2020-03-02

PERFORMANCE OF MABR WITH ENHANCEMENT OF RAPID HN-AD BACTERIA ENRICHMENT IN TREATING HIGH AMMONIUM NITROGEN WASTEWATER

1. School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China;
2. Chongqing Academy of Environmental Science, Chongqing 401147, China

摘要

摘要: 对比研究贯通式、闭端式2种膜组件形式的膜曝气生物膜反应器（MABR）对高氨氮模拟废水的处理性能。结果表明：MABR在8 d内实现菌液快速挂膜，且贯通式MABR的生物附着量、脱氮效率均高于闭端式。贯通式MABR对高氨氮废水中NH₄⁺-N、TN、COD的去除率均比闭端式高出20%左右，具有更好的脱氮除碳效果。高通量测序分析显示，贯通式MABR于挂膜阶段实现了HN-AD菌快速富集，并在处理高氨氮废水过程中仍保持其较高丰度（不动杆菌属Acinetobacter占22.1%、假单胞菌属Pseudomonas占43.2%），但闭端式MABR未优势富集HN-AD菌。贯通式MABR相比闭端式MABR具有更高DO条件促进HN-AD菌富集，从而强化了对高氨氮废水的处理效果。
- MABR /
- HN-AD菌 /
- 高氨氮废水 /
- 快速富集
Abstract: This study compared the performance of open-ended MABR and closed-ended MABR for high ammonium (NH₄⁺-N) synthetic wastewater treatment. The results demonstrated that the two MABRs rapidly formed biofilm in 8 days,but in the open-ended MABR, biofilm content and nitrogen removal efficiencies were higher than those of the closed-ended one. The average removal efficiencies of NH₄⁺-N, TN and COD in open-ended MABR for high ammonium synthetic wastewater treatment were all nearly 20% higher than those in closed-ended one, indicating a better nitrogen and COD removal performance. The high-throughput sequencing analysis revealed that rapid enrichment of HN-AD bacteria was achieved during the biofilm formation, and high abundances of HN-AD bacteria (22.1% of Acinetobacter, 43.2% of Pseudomonas) were kept during the stabilization of the open-ended MABR; but closed-ended MABR didn't achieve HN-AD bacteria enrichment. A higher DO condition provided by open-ended MABR promoted greater abundance of HN-AD bacteria than the close-ended one, to enhanced the treatment of high ammonium wastewater.
- membrane-aerated biofilm reactor /
- HN-AD bacteria /
- high ammonium wastewater /
- rapid enrichment

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