On-line adaptive and nonlinear process monitoring of a pilot scale sequencing batch reactor
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- Title
- On-line adaptive and nonlinear process monitoring of a pilot scale sequencing batch reactor
- Authors
- Yoo, CK; Lee, IB; Vanrolleghem, PA
- Date Issued
- 2006-08
- Publisher
- SPRINGER
- Abstract
- This article describes the application of on-line nonlinear monitoring of a sequencing batch reactor (SBR). Three-way batch data of SBR are unfolded batch-wisely, and then a adaptive and nonlinear multivariate monitoring method is used to capture the nonlinear characteristics of normal batches. The approach is successfully applied to an 80 L SBR for biological wastewater treatment, where the SBR poses an interesting challenge in view of process monitoring since it is characterized by nonstationary, batchwise, multistage, and nonlinear dynamics. In on-line batch monitoring, the developed adaptive and nonlinear process monitoring method can effectively capture the nonlinear relationship among process variables of a biological process in a SBR. The results of this pilot-scale SBR monitoring system using simple on-line measurements clearly demonstrated that the adaptive and nonlinear monitoring technique showed lower false alarm rate and physically meaningful, that is, robust monitoring results.
- Keywords
- adaptive batch monitoring; multiway kernel principal component analysis (MKPCA); nonlinear biological process; sequencing batch reactor (SBR); PRINCIPAL COMPONENT ANALYSIS; MULTIVARIATE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/23782
- DOI
- 10.1007/S10661-005-9
- ISSN
- 0167-6369
- Article Type
- Article
- Citation
- ENVIRONMENTAL MONITORING AND ASSESSMENT, vol. 119, no. 1-3, page. 349 - 366, 2006-08
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