Control of corrosion and aggression in drinking water systems

Corrosion and/or aggression are common problems arising in pipelines transporting terrestrial waters. The kinetics and severity of such events depend on both the quality of the water being transported and the material properties of the pipeline. Irrespective of the nature of the problem, its solutio...

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Bibliographic Details
Published in:Water science and technology 2004, Vol.49 (2), p.9-18
Main Authors: Loewenthal, R E, Morrison, I, Wentzel, M C
Format: Article
Language:English
Subjects:
Aggression
Calcium carbonate
Chemical Precipitation
Computer techniques
Corrosion
Corrosion prevention
Drinking water
Facility Design and Construction
Hydrogen-Ion Concentration
Models, Theoretical
Software
Water - chemistry
Water pipelines
Water Supply
Water treatment
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Summary:Corrosion and/or aggression are common problems arising in pipelines transporting terrestrial waters. The kinetics and severity of such events depend on both the quality of the water being transported and the material properties of the pipeline. Irrespective of the nature of the problem, its solution (or at least its minimisation) is strongly linked to control of pH, calcium concentration and carbonate chemistry of the water (stabilisation). However, application of such chemistry to water treatment problems is complex and time consuming. Various numerical, graphical and computer techniques have been developed to address this, but these are either of insufficient accuracy, too time consuming or lacking in generality. In this paper algorithms are presented for solving a broad spectrum of problems related to control of mineral precipitation/aggression, pH and chemical dosing in water treatment. These have been incorporated into a computer software package, STASOFT, which offers the requisite framework for use in water treatment. Various stabilisation problems pertinent to water supply are addressed.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2004.0075