Knowledge extraction from a nitrification denitrification wastewater treatment plant using SOM-NG algorithm

SOM-NG is a hybrid algorithm that is able to carry out visualization of process data, nonlinear function approximation, classification and clustering. The supervised version of SOM-NG produces a new type of 2D lattices called gradient planes which are useful to determine the dynamics of a target var...

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Bibliographic Details
Published in:Environmental technology 2017-06, Vol.38 (12), p.1548-1553
Main Authors: Machón-González, Iván, Rodríguez-Iglesias, Jesús, López-García, Hilario, Castrillón-Peláez, Leonor, Marañón-Maison, Elena
Format: Article
Language:English
Subjects:
Activated sludge
Algorithms
Ammonia
Biological wastewater treatment
Classification
Clustering
coke wastewater
Data mining
Data processing
Denitrification
Dynamical systems
environmental technology
Industrial Waste
Industrial wastes
Industrial wastewater
Industrial wastewater treatment
Lattices
Load distribution
Loading rate
neural gas
Nitrification
Nonlinear dynamics
Nonlinear systems
Operating temperature
Oxygen - metabolism
Planes
Plant extracts
Process variables
Self organizing map
Sludge
Sludge treatment
temperature
Temperature effects
Waste Disposal, Fluid - methods
Waste Water
Wastewater treatment
Wastewater treatment plants
Water treatment plants
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Summary:SOM-NG is a hybrid algorithm that is able to carry out visualization of process data, nonlinear function approximation, classification and clustering. The supervised version of SOM-NG produces a new type of 2D lattices called gradient planes which are useful to determine the dynamics of a target variable according to the remaining training variables. In this way, it is an interesting tool for data mining in order to extract knowledge from databases for nonlinear systems. The main objective of this work is to analyze data from an industrial wastewater treatment plant using SOM-NG algorithm in order to investigate relationships between the process variables. The data used proceeds from a biological wastewater treatment plant. This plant is based on an activated sludge treatment including nitrification and denitrification processes. A direct relation between the nitrification efficiency and the operating temperature was found, and also between the ammonia loading rate and the nitrification denitrification efficiency.
ISSN:0959-3330
1479-487X
1479-487X
DOI:10.1080/09593330.2016.1237551