Prediction of Sludge Volume Index in a Wastewater Treatment Plant Using Recurrent Neural Network
Issued Date
2022-05-01
Resource Type
eISSN
20711050
Scopus ID
2-s2.0-85131095726
Journal Title
Sustainability (Switzerland)
Volume
14
Issue
10
Rights Holder(s)
SCOPUS
Bibliographic Citation
Sustainability (Switzerland) Vol.14 No.10 (2022)
Suggested Citation
Wongburi P., Park J.K. Prediction of Sludge Volume Index in a Wastewater Treatment Plant Using Recurrent Neural Network. Sustainability (Switzerland) Vol.14 No.10 (2022). doi:10.3390/su14106276 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/84278
Title
Prediction of Sludge Volume Index in a Wastewater Treatment Plant Using Recurrent Neural Network
Author(s)
Other Contributor(s)
Abstract
Sludge Volume Index (SVI) is one of the most important operational parameters in an activated sludge process. It is difficult to predict SVI because of the nonlinearity of data and variability operation conditions. With complex time-series data from Wastewater Treatment Plants (WWTPs), the Recurrent Neural Network (RNN) with an Explainable Artificial Intelligence was applied to predict SVI and interpret the prediction result. RNN architecture has been proven to effi-ciently handle time-series and non-uniformity data. Moreover, due to the complexity of the model, the newly Explainable Artificial Intelligence concept was used to interpret the result. Data were collected from the Nine Springs Wastewater Treatment Plant, Madison, Wisconsin, and the data were analyzed and cleaned using Python program and data analytics approaches. An RNN model predicted SVI accurately after training with historical big data collected at the Nine Spring WWTP. The Explainable Artificial Intelligence (AI) analysis was able to determine which input parameters affected higher SVI most. The prediction of SVI will benefit WWTPs to establish corrective measures to maintaining stable SVI. The SVI prediction model and Explainable Artificial Intelligence method will help the wastewater treatment sector to improve operational performance, system manage-ment, and process reliability.