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Explanation of the Effect of Limestone on the Dissolution of a Phosphate with the Visual MINTEQ Model  

Kim, Hag Seong (Department of Environmental Engineering, Chungbuk National University)
Jeong, Yeon Tae (Environment & Structure Lab., Korea Electric Power Research Institute)
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Abstract
This study was done to explain the role of limestone which might intervene in the phosphorus cycle in a lake. The effects of limestone on the dissolution of phosphate were estimated by simulations with the computer model Visual MINTEQ, which is designed for the chemical equilibrium calculations. According to the calculations limestone shows remarkable effects for the suppression of phosphate dissolution. The limestone can suppress the dissolution of phosphates by sacrificing themselves to acids, and as a consequence can increase the hardness and alkalinity of the lake. Both hardness and alkalinity play an important role in reducing soluble P and thus alleviate the eutrophication potential.
Keywords
Alkalinity; Eutrophication; Hardness; Limestone; Modelling; Phosphorus;
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Times Cited By KSCI : 1  (Citation Analysis)
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