QQ客服 官方微博 反馈留言

	Numerical simulation of oxidation ditch for wastewater treatment
	Fan, L ; Shi, HC
	2010-05-10 ; 2010-05-10
会议名称	Future of Urban Wastewater Systems - Decentralisation and Reuse ; Conference of the International-Water-Association (IWA) ; Xian, PEOPLES R CHINA ; Web of Science
关键词	simulation oxidation ditch wastewater treatment computation fluid dynamics SYSTEM FLOW Engineering, Environmental Water Resources
中文摘要	Shortage of available water resource and pollution of water resource is an urgent problem confronted by Chinese people. Towards this, the equipment for wastewater treatment must be improved and optimized. Oxidation ditch plays a vital role in wastewater treatment. For the sake of making oxidation ditch more efficient, it is necessary to study on the optimization of oxidation ditch. The flow dynamic character is an important parameter for the design and optimization of the reactor. Since the flow dynamics of oxidation ditch will change with the structure of the ditch, the simulation should be performed accordingly. Thus we optimize the oxidation ditch with the help of computational fluid dynamics (CFD) in this paper. It is suggested that there are solid and liquid two phases in the oxidation ditch and the mixture model is used. The simulations are limited to three-dimensional, steady state simulation in a turbulent flow regime. Standard k-epsilon model is employed to simulate the turbulent flow. By simulation, the velocities and volume fractions of solid and liquid phase, the static pressure in the oxidation ditch are obtained. The influence of aerator speed on distribution of velocity and solid concentration in oxidation ditch is investigated. The results supply useful reference information for pilot-scale study and enlargement design.
会议录出版者	CHINA ARCHITECTURE & BUILDING PRESS ; BEIJING ; BAIWANZHUANG XICHENGGU, BEIJING, 10037, PEOPLES R CHINA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18914]
专题	清华大学
推荐引用方式 GB/T 7714	Fan, L,Shi, HC. Numerical simulation of oxidation ditch for wastewater treatment[C]. 见:Future of Urban Wastewater Systems - Decentralisation and Reuse, Conference of the International-Water-Association (IWA), Xian, PEOPLES R CHINA, Web of Science.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。