Improvement of nitrogen removal and reduction of operating costs in an activated sludge process with feedforward-cascade control strategy

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 工业信息学研究室 > 工业控制系统研究室

	Improvement of nitrogen removal and reduction of operating costs in an activated sludge process with feedforward-cascade control strategy
	Zhang P(张平); Yuan MZ(苑明哲); Wang H(王宏)
刊名	Biochemical Engineering Journal
	2008
卷号	41 期号:1 页码:53-58
关键词	Activated sludge process ASM1 Dissolved oxygen concentration Feedforward control Cascade control
ISSN号	1369-703X
产权排序	1
中文摘要	In this paper, a feedforward-cascade controller for dissolved oxygen concentration in an activated sludge process is designed in order to meet stricter effluent quality standards at a minimum cost. Conventional proportional and integral (PI) constant dissolved oxygen set-point control and feedforward-cascade dissolved oxygen set-point control are evaluated using the reduced model of activated sludge model no. 1 and reduced IWA simulation benchmark. The feedforward-cascade control has been based on a hierarchical structure where a high level or cascade control selects the set-point of the low level or conventional controller and low level directly control dissolved oxygen concentration. And feedforward control is introduced in the control system for preventing the influent loading from influencing the system. Simulation results show that feedforward-cascade control of the activated sludge process is more successful than conventional PI control in meeting the effluent standards and reducing operational costs. This control strategy can be expected to be accepted by the operating personnel in wastewater treatment plants.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]	Biotechnology & Applied Microbiology ; Engineering, Chemical
研究领域[WOS]	Biotechnology & Applied Microbiology ; Engineering
关键词[WOS]	DISSOLVED-OXYGEN CONCENTRATION ; FEEDFORWARD
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000257906200009
公开日期	2012-05-29
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/6907]
专题	沈阳自动化研究所_工业信息学研究室_工业控制系统研究室
推荐引用方式 GB/T 7714	Zhang P,Yuan MZ,Wang H. Improvement of nitrogen removal and reduction of operating costs in an activated sludge process with feedforward-cascade control strategy[J]. Biochemical Engineering Journal,2008,41(1):53-58.
APA	Zhang P,Yuan MZ,&Wang H.(2008).Improvement of nitrogen removal and reduction of operating costs in an activated sludge process with feedforward-cascade control strategy.Biochemical Engineering Journal,41(1),53-58.
MLA	Zhang P,et al."Improvement of nitrogen removal and reduction of operating costs in an activated sludge process with feedforward-cascade control strategy".Biochemical Engineering Journal 41.1(2008):53-58.