温度对厌氧氨氧化与反硝化耦合脱氮除碳的影响

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Abstract

An anaerobic sequencing batch reactor (ASBR) was used to investigate the short effects of temperature on nitrogen removal by anaerobic ammonium oxidation and denitrification. The activation energy of the coupled reaction contained anammox and denitrification was lower than the single reactor only contained anammox process. The coupled reaction could balance the negative effects of low temperature. Decrease in temperature had more severe effects on anammox process than denitrification process. The relationship between temperature and the maximum specific nitrogen removal rate could accord with Arrhenius equation. The activation energy of coupled reaction was 49.56kJ/mol which was lower than 66.18kJ/mol calculated by anammox reaction at 25~35℃ and anammox was the dominated reaction in the reactor whose contribution rates to nitrogen removal were 61.29%. The activation energy of coupled reaction was 74.91kJ/mol which was lower than 106.40kJ/mol calculated by anammox reaction at 9~25℃. The contribution rates made by denitrification to nitrogen removal were increased with the decreasing of temperature. Denitrification became the dominated reaction when the temperature dropped to 9℃, and its contribution rate to nitrogen removal was 75.10%. The volume of nitrogen removal rate(NRR) would be influenced by temperature when temperature was lower than 25℃.

Key words： temperature ANAMMOX denitrification activation energy

Received: 09 October 2015

PACS:

X703

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	Articles by authors
	YU De-shuang
	WEI Si-jia
	LI Jin
	QI Pan-qing
	GUAN Yong-jie

Cite this article:

YU De-shuang,WEI Si-jia,LI Jin等. Effect of temperature on simultaneous carbon and nitrogen removal by anaerobic ammonium oxidation and denitrification[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(5): 1384-1391.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2016/V36/I5/1384

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