Sludge Bulking Prediction Using Principle Component Regression and Artificial Neural Network
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-11
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
Sludge bulking is the most common solids settling problem in wastewater treatment plants, which is caused by the excessive growth of filamentous bacteria extending outside the flocs, resulting in decreasing the wastewater treatment efficiency and deteriorating the water quality in the effluent.
Previous studies using molecular techniques have been widely used from the microbiological aspects, while the mechanisms have not yet been completely understood to form the deterministic cause-effect relationship.
In this study, system identification techniques based on the analysis of the inputs and outputs of the activated sludge system are applied to the data-driven modeling.
Principle component regression (PCR) and artificial neural network (ANN) were identified using the data from Chongqing wastewater treatment plant (CQWWTP), including temperature, pH, biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (SSs), ammonia (NH4+), total nitrogen (TN), total phosphorus (TP), and mixed liquor suspended solids (MLSSs).
The models were subsequently used to predict the sludge volume index (SVI), the indicator of the bulking occurrence.
Comparison of the results obtained by both models is also presented.
The results showed that ANN has better prediction power (R2=0.9) than PCR (R2=0.7) and thus provides a useful guide for practical sludge bulking control.
American Psychological Association (APA)
Lou, Inchio& Zhao, Yuchao. 2012. Sludge Bulking Prediction Using Principle Component Regression and Artificial Neural Network. Mathematical Problems in Engineering،Vol. 2012, no. 2012, pp.1-17.
https://search.emarefa.net/detail/BIM-1001423
Modern Language Association (MLA)
Lou, Inchio& Zhao, Yuchao. Sludge Bulking Prediction Using Principle Component Regression and Artificial Neural Network. Mathematical Problems in Engineering No. 2012 (2012), pp.1-17.
https://search.emarefa.net/detail/BIM-1001423
American Medical Association (AMA)
Lou, Inchio& Zhao, Yuchao. Sludge Bulking Prediction Using Principle Component Regression and Artificial Neural Network. Mathematical Problems in Engineering. 2012. Vol. 2012, no. 2012, pp.1-17.
https://search.emarefa.net/detail/BIM-1001423
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1001423