Effect of magnetic field on denitrification of anaerobic ammonia oxidation

International Conference on Manufacturing Technology, Materials and Chemical Engineering

材料科学;化学工业

Luan, Jiajia^1 ; Wang, Jiabin^1 ; Zhu, Lingli^1

School of Civil Engineering and Architecture, University of Jinan, NO. 336, Nanxinzhuang West Road, Jinan

250022, China^1

关键词: Ammonia oxidation;    Ammonia oxidizing bacteria;    Denitrification efficiencies;    Effect of magnetic field;    Environmental sensitivities;    Hydraulic retention time;    Magnetic particle;    Partial nitrification;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/592/1/012096/pdf
DOI  :  10.1088/1757-899X/592/1/012096

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this experiment, the effect of magnetic field on the denitrification efficiency of anammox reactor was studied to solve the problems such as slow start-up of anammox process and environmental sensitivity by adding magnetic particles (adding amount 0 20 60 100g/L) in the reactor. It was found that the addition of magnetic field could improve the activity of partial nitrification bacteria, accelerate the accumulation of nitrite and promote the anaerobic ammonia oxidation reaction, especially when the magnetic particle dosage was 60 g/L. The presence of magnetic field can enhance the activity of anaerobic ammonia oxidizing bacteria, increase the impact load resistance of anaerobic ammonia oxidizing system, improve denitrification efficiency and shorten hydraulic retention time.