A contour plot technique for depicting wastewater lagoon parameters and analysing their interrelatedness

Hurse, T. J. and Connor, M. A. (2000) A contour plot technique for depicting wastewater lagoon parameters and analysing their interrelatedness. Water Research, 34 18: 4381-4388. doi:10.1016/S0043-1354(00)00206-2

Author Hurse, T. J.
Connor, M. A.
Title A contour plot technique for depicting wastewater lagoon parameters and analysing their interrelatedness
Journal name Water Research   Check publisher's open access policy
ISSN 0043-1354
Publication date 2000-12
Sub-type Article (original research)
DOI 10.1016/S0043-1354(00)00206-2
Volume 34
Issue 18
Start page 4381
End page 4388
Total pages 8
Editor M. Hinze
Place of publication Great Britain
Publisher Elsevier Science Ltd
Collection year 2000
Language eng
Subject C1
770502 Land and water management
291102 Bio-remediation
Abstract Most wastewater treatment plants regularly monitor plant performance. Analysis of the resulting data can provide valuable insights into plant behaviour. A useful first step in the systematic analysis of such data is to depict them graphically. The resulting plots help identify the more obvious relationships between measured wastewater characteristics. They also help in locating anomalous data points. In the case of multi-pond wastewater treatment lagoons, finding an informative way of depicting the monitoring data is difficult. This is because the required data plots need to show not only how measured characteristics vary with time but also how they vary along the pond chain. Conventional 2-D time-series plots are inadequate for this task if the lagoon comprises more than a few ponds, or if the amount of accumulated data is large. An alternative, contour plot based approach was developed that overcomes the problems with conventional 2-D plots. The procedure for producing such plots is described and factors affecting their accuracy discussed. A major advantage of the contour plot approach is that contour plots for different parameters can be superimposed. By examining these superimposed plots, one can learn much about the way different parameters are related. A procedure is described that enables the interrelatedness of any given pair of parameters to be systematically characterised. The effectiveness of the contour plot approach is illustrated using data obtained over a 9-year period for an 11 (later 10) pond lagoon at the Western Treatment plant in Melbourne, Australia. (C) 2000 Elsevier Science Ltd. All rights reserved.
Keyword Waste-stabilization Ponds
Monitoring Data
Contour Plot
Engineering, Environmental
Environmental Sciences
Water Resources
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: Advanced Water Management Centre Publications
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Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
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Created: Tue, 10 Jun 2008, 12:38:27 EST