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http://dx.doi.org/10.5806/AST.2011.24.5.378

A study on relationship of concentration of phosphorus, turbidity and pH with temperature in water and soil  

Min, Young-Hong (Water Technology Research Institute, Daejeon Waterwork Authority)
Hyun, Dae-Yoeung (Water Technology Research Institute, Daejeon Waterwork Authority)
Eum, Chul-Hun (Korea Institute of Geoscience and Mineral Resources)
Chung, Nam-Hyun (Division of Biotechnology, Korea University)
Kang, Sam-Woo (Department of Chemistry, Hannam University)
Lee, Seung-Ho (Department of Chemistry, Hannam University)
Publication Information
Analytical Science and Technology / v.24, no.5, 2011 , pp. 378-386 More about this Journal
Abstract
The goal of this study is to understand the influence of temperature on phosphorus release rate from soil into water. As the temperature increases, $PO_4$-P reaches equilibrium more quickly and the equilibrium concentration increases, and thus the $PO_4$-P concentration increases, and pH decreases. The $PO_4$-P concentration affects pH. $PO_4$-P released from turbidity is not adsorbed onto the turbidity. $PO_4$-P was independent on the turbidity and yet $PO_4$-P was steadily increasing. However, $PO_4$-P was dependent upon the turbidity concentration as the turbidity releases $PO_4$-P. The total phosphorous (T-P) and turbidity were directly linked because T-P changed with the turbidity. T-P includes the $PO_4$-P content of water and the phosphorus content of the turbidity. As the temperature decreases, density of water increases, and the precipitation of turbidity decreases, resulting in an increases in T-P concentration. As the temperature increases, the T-P concentration decreases, but the PO4-P release rate from turbidity increases. At the same time, even at different temperatures, the T-P concentrations of the samples were about the same. When the lake gets deepened, the water temperature decreases, hence, the phosphorus release rate from soil into water was decreased. This mechanism is of great interest because phosphorus is released from soil sediment into the lake water.
Keywords
turbidity; DO (Dissolved oxygen); NTU (Nephelometric turbidity units); T-P (Total Phosphorus); $PO_4$-P (phosphate phosphorus);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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