Nitrogen removal performance and operation strategy of anammox process under temperature shock

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Nitrogen removal performance and operation strategy of anammox process under temperature shock
	Zhang, Peiyu; Li, Jin; Dong, Huiyu; Wang, Dan; Zhu, Weiqiang
刊名	BIODEGRADATION
	2017-08-01
卷号	28 期号:4 页码:261-274
关键词	Anammox Temperature Shock Kinetics Apparent Activation Energy (E-a) Operation Strategy Glycine Betaine
英文摘要	Sequencing batch reactors were used to study anaerobic ammonium oxidation (anammox) process under temperature shock. Both long-term (15-35 A degrees C) and short-term (10-50 A degrees C) temperature effects on nitrogen removal performance were performed. In reactor operation test, the results indicated that ammonium removal rate decreased from 0.35 kg/(m(3) day) gradually to 0.059 kg/(m(3) day) when temperature dropped from 35 to 15 A degrees C. Although bacteria morphology was not modified, sludge settling velocity decreased with decreasing temperature. In batch test, apparent activation energy (E-a) increased with decreasing temperature, which suggested the activity decrease of anaerobic ammonium oxidizing bacteria (AAOB). Low temperature inhibited AAOB and weakened nitrogen removal performance. The cardinal temperature model with inflection was first used to describe temperature effect on anammox process. Simulated results revealed that anammox reaction could occur at 10.52-50.15 A degrees C with maximum specific anammox activity of 0.50 kg/(kg day) at 36.72 A degrees C. The cold acclimatization of AAOB could be achieved and glycine betaine could slightly improve nitrogen removal performance at low temperature.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39531]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Peiyu,Li, Jin,Dong, Huiyu,et al. Nitrogen removal performance and operation strategy of anammox process under temperature shock[J]. BIODEGRADATION,2017,28(4):261-274.
APA	Zhang, Peiyu,Li, Jin,Dong, Huiyu,Wang, Dan,&Zhu, Weiqiang.(2017).Nitrogen removal performance and operation strategy of anammox process under temperature shock.BIODEGRADATION,28(4),261-274.
MLA	Zhang, Peiyu,et al."Nitrogen removal performance and operation strategy of anammox process under temperature shock".BIODEGRADATION 28.4(2017):261-274.