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Speciation as an Aid to Understanding the Chemistry of Water Treatment
Author(s) -
KERR C. A.,
BUCKLEY C. A.
Publication year - 1992
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1992.tb00759.x
Subject(s) - genetic algorithm , carbonate , reagent , chemical equilibrium , chemistry , water treatment , water chemistry , water quality , environmental chemistry , biochemical engineering , environmental science , environmental engineering , organic chemistry , ecology , engineering , biology
The deliberate formation of solid precipitates is a treatment process commonly used to remove undesirable ions from solution. Where the chemistry of the water to be treated is complex, a knowledge of the chemical species present, and their concentrations, can be an effective tool in evaluating the effectiveness of the treatment process and in optimizing reagent dosage and operator control. The use of chemical equilibrium speciation computer programs offers a relatively rapid method to determine the type and concentrations of chemical species present at equilibrium. Some sulphate‐rich waters of significance to South Africa have been speciated using the MINTEQA2 computer program. The effects of treating these waters with barium carbonate have been evaluated. The computer predictions of treated water quality have been experimentally verified.