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	Nitrogen and phosphorus removal in pilot-scale anaerobic-anoxic oxidation ditch system
	Peng YZ(彭永臻)
	2012-04-24 ; 2012-04-24
中文摘要	To achieve high efficiency of nitrogen and phosphorus removal and to investigate the rule of simultaneous nitrification and denitrification phosphorus removal (SNDPR), a whole course of SNDPR damage and recovery was studied in a pilot-scale, anaerobic- anoxic oxidation ditch (OD), where the volumes of anaerobic zone, anoxic zone, and ditches zone of the OD system were 7, 21, and 280 L, respectively. The reactor was fed with municipal wastewater with a flow rate of 336 L/d. The concept of simultaneous nitrification and denitrification (SND) rate (rSND) was put forward to quantify SND. The results indicate that: (1) high nitrogen and phosphorus removal efficiencies were achieved during the stable SND phase, total nitrogen (TN) and total phosphate (TP) removal rates were 80% and 85%, respectively; (2) when the system was aerated excessively, the stability of SND was damaged, and rSND dropped from 80% to 20% or less; (3) the natural logarithm of the ratio of NOx to NH4+ in the effluent had a linear correlation to oxidation-reduction potential (ORP); (4) when NO3- was less than 6 mg/L, high phosphorus removal efficiency could be achieved; (5) denitrifying phosphorus removal (DNPR) could take place in the anaerobic-anoxic OD system. The major innovation was that the SND rate was devised and quantified. © 2008 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences.
原文出处	http://dlib.edu.cnki.net/kns50/download.aspx?filename=LVWNWFDd3o3cK5WWVBnWipmatdUY282YLVzQvQTZ3ljVR1GdXN2U1YXZyZHO6VmVwFmUullUIxmW4dFbpJ2Lll1aL9STycjUjdVdCVXYv4EZGdVbqhEUFF3dhFld100aUREbyRlZMpmZw9ERqdTepFjQNhFat9Sc&tablename=CJFD2009&dflag=pdfdown 全文链接
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/17592]
专题	北京工业大学
推荐引用方式 GB/T 7714	Peng YZ. Nitrogen and phosphorus removal in pilot-scale anaerobic-anoxic oxidation ditch system[J],2012, 2012.
APA	彭永臻.(2012).Nitrogen and phosphorus removal in pilot-scale anaerobic-anoxic oxidation ditch system..
MLA	彭永臻."Nitrogen and phosphorus removal in pilot-scale anaerobic-anoxic oxidation ditch system".(2012).

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