马赛菌属<i>Massilia</i> <i>neuiana</i>异养硝化-好氧反硝化脱氮特征实验

李一依; 赵勇娇; 刘芳; 李雪洁; 赵鑫; 胡筱敏

doi:10.13205/j.hjgc.202010016

马赛菌属Massilia neuiana异养硝化-好氧反硝化脱氮特征实验

doi: 10.13205/j.hjgc.202010016

1. 东北大学资源与土木工程学院环境工程系, 沈阳 110819;
2. 沈阳环境科学研究院, 沈阳 110167;
3. 江苏理工学院化学与环境工程学院, 江苏常州 213001

基金项目:

水体污染控制与治理科技重大专项（2013ZX07202-010）；中央直属高校基本科研业务费项目（N170104021，N182508026）。

详细信息

作者简介:
李一依(1995-),女,硕士研究生,主要研究方向为水污染控制与环境规划。berncastel@163.com

通讯作者:
赵鑫(1982-),男,副教授。zhaoxin@mail.neu.edu.cn

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出版历程
- 收稿日期: 2019-08-28

ANALYSIS ON THE HETEROTROPHIC NITRIFICATION-AEROBIC DENITRIFICATION CHARACTERISTICS OF THE NEW SPECIES OF MASSILIA NEUIANA

1. Department of Environmental Engineering, School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China;
2. Shenyang Academy of Environmental Sciences, Shenyang 110167, China;
3. School of Chemical and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China

摘要

摘要: 基于马赛菌属脱氮Massilia neuiana的模式菌株PTW21进行研究，探讨其异养硝化-好氧反硝化脱氮能力。菌株PTW21具有高效异养硝化和好氧反硝化能力，对NH₄⁺-N和NO₂^--N去除率均超过90%。同时，菌株PTW21具有同步硝化反硝化能力，且反硝化效率高于硝化效率，但当有NH₄⁺-N存在时，会优先利用NH₄⁺-N，再利用NO₂^--N，存在硝化-反硝化竞争抑制现象。同步硝化反硝化时，菌株PTW21可以去除95%以上的NH₄⁺-N和NO₂^--N。Massilia neuiana的研究丰富了异养硝化-好氧反硝化微生物的种类，也为该菌种在污水处理厂的生物强化应用提供了前期基础。
- 生物脱氮 /
- 异养硝化 /
- 好氧反硝化 /
- Massilia /
- 同步硝化反硝化
Abstract: In this study, the heterotrophic nitrification-aerobic denitrification characteristics of strain PTW21, a typical strain of a novel nitrogen removal species Massilia neuiana, was investigated. The high efficiencies of heterotrophic nitrification and aerobic denitrification by strain PTW21 were demonstrated, which were both obtained over 90%. A higher denitrification efficiency was obtained than its nitrification efficiency in the simultaneous nitrification and denitrification (SND) by strain PTW21. However, a nitrification-denitrification competitive inhibition was observed in the presence of NH₄⁺-N that ammonium was preferentially consumed by strain PTW21, followed by nitrate. Totally over 95% of ammonia and nitrate nitrogen were removed by strain PTW21 in the SND process. The study on Massilia neuiana enriched the variety of heterotrophic nitrification-aerobic denitrification microbe, and established the preliminary foundation of the strain for the bio-augmentation application in sewage treatment plants.
- biological nitrogen removal /
- heterotrophic nitrification /
- aerobic denitrification /
- Massilia /
- simultaneous nitrification and denitrification

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