Impact of Water Blending on Calcium Carbonate Equilibrium in Water Distribution Systems
Publication: Journal of Environmental Engineering
Volume 130, Issue 9
Abstract
A set of equations describing calcium carbonate equilibrium in water was applied to water mixtures found in an existing water supply system. A theoretical model was used to calculate the total alkalinity and pH resulting from the mixing of two waters of different origin. The accuracy of the results was tested experimentally. The experimental results confirmed the theoretical calculations with acceptable accuracy. Two different sources of possible errors in the Langelier saturation index computations were investigated and compared graphically. The first source resulted from possible inaccuracy of data, assumed to be equal to the standard errors of laboratory measurements. The second was caused by neglecting the inorganic complexes of calcium and magnesium in calculations.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 130 • Issue 9 • September 2004
Pages: 1059 - 1062
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jan 24, 2002
Accepted: Jun 27, 2003
Published online: Aug 16, 2004
Published in print: Sep 2004
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