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	The distribution of key parameters in Carrousel oxidation ditch
	Liu Yan-chen ; Fan Long ; Wang Zhi-qiang ; Chen Da-fang ; Shi Han-chang ; Luo Bin ; Wang Ying-zhe
	2010-05-10 ; 2010-05-10
关键词	Theoretical or Mathematical/ nitrogen oxygen wastewater treatment water pollution/ Carrousel oxidation ditch nitrogen removal biological parameters hydrological parameters Changsha second wastewater treatment plant nitrification denitrification flow velocity dissolved oxygen concentration mixed liquor suspended solids/ A9240Q Water quality and water resources A8670E Water (environmental science) A9330D Asia
中文摘要	To enhance nitrogen removal, a systemic monitoring of the biological and hydrological parameters of Carrousel oxidation ditch in Changsha second wastewater treatment plant was carried out to study the feasibility of simultaneous nitrification and denitrification (SND). The variation and distribution of parameters such as flow velocity, the concentration of dissolved oxygen(DO) and mixed liquor suspended solids (MLSS) in oxidation ditch were measured and analysed, which were major control factors for SND. The dimensional distribution of flow velocity, DO and MLSS were affected markedly by the open condition of the fans, DO along the ditch changed obviously with time. DO and flow velocity were higher and the mixing of MLSS was sufficient when five fans were opened, while there was lower flow velocity (<0.15 m/s) in middle ditch when three fans were opened. The feasible operation conditions for SND were lower dissolved oxygen concentration, lower flow velocity and higher concentration of MLSS.
语种	中文 ; 中文
出版者	Editorial Board of China Environmental Science ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/23427]
专题	清华大学
推荐引用方式 GB/T 7714	Liu Yan-chen,Fan Long,Wang Zhi-qiang,et al. The distribution of key parameters in Carrousel oxidation ditch[J],2010, 2010.
APA	Liu Yan-chen.,Fan Long.,Wang Zhi-qiang.,Chen Da-fang.,Shi Han-chang.,...&Wang Ying-zhe.(2010).The distribution of key parameters in Carrousel oxidation ditch..
MLA	Liu Yan-chen,et al."The distribution of key parameters in Carrousel oxidation ditch".(2010).

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