DOI QR코드

DOI QR Code

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

물과 토양에서 pH, PO4-P, 탁도 그리고 T-P 농도에 미치는 온도의 영향에 관한 연구

Min, Young-Hong;Hyun, Dae-Yoeung;Eum, Chul-Hun;Chung, Nam-Hyun;Kang, Sam-Woo;Lee, Seung-Ho
민영홍;현대용;음철헌;정남현;강삼우;이승호

  • Received : 2011.09.19
  • Accepted : 2011.10.05
  • Published : 2011.10.25

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)

References

  1. E. H. Kim and H. S. Kim, Kor. J. Sanitation, 17(1)1, 75-80 (2002).
  2. Ministry of Environment, Republic of Korea notification-2009-255 (2009.10.29.).
  3. Ministry of Environment, Republic of Korea notification-2010-48 (2010.04.29.).
  4. Ministry of Environment, Republic of Korea notification-2010-88 (2010.07.14.).
  5. Standard Methods, For the Examination of Water and Wasterwater, Sixteenth Edition, American Public Health Association.
  6. S. J. Lee and K. G. An, Kor. J. Limnol., 43(1), 136-141 (2010).
  7. W. H. Jung and G. H. Kim, J. of KSEE, 28(5), 472-479 (2006).
  8. Y. H. Min, D. Y. Hyun, C. H. Eum and S. Lee, Anal. Sci. Technol., 28(4), 304-309 (2011).

Cited by

  1. Analysis of Water Quality factor and Correlation between Water Quality and Chl-a in Middle and Downstream Weir Section of Nakdong River vol.39, pp.2, 2017, https://doi.org/10.4491/KSEE.2017.39.2.89