Impact of DO Concentration on Shortcut Nitrification

Author

Fu Jinxiang ; Tang Yulan ; Ma Xingguan ; Li Jun ; Liu Qiang ; Zhao Yuhua ; Han Jinying

Author_Institution

Municipal & Environ. Eng. Inst., Shenyang Jianzhu Univ., Shenyang, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

4

Abstract

The effect of the DO concentration on the stability of the shortcut nitrification was studied. The static test is done with SBR reactor. Reaction time reduced with the DO concentration raised appropriately, but DO in excess, the shortcut nitrification system will be damaged by the analysis of the impact of DO concentration on ammonia removal, nitrite nitrogen accumulation in shortcut nitrification process. When DO concentration was 0.45~0.9 mg/L, the system was stable, and the reaction time was reduced quickly. When DO concentration was beyond 1.6 mg/L, shortcut nitrification system would be transformed into complete nitrification.

Keywords

ammonia; biological techniques; bioreactors; deuterium compounds; microorganisms; sludge treatment; water treatment; DO; DO concentration; SBR reactor; ammonia removal; nitrite nitrogen accumulation; shortcut nitrification process; Biological materials; Bioreactors; Effluents; Inductors; Microorganisms; Nitrogen; Stability; Temperature; Testing; Thermostats;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5517289

Filename

5517289