Study on the relationship between total dissolved solids (TDS) and electrical conductivity (EC) of the  aquifers in Ca Mau province

Trinh Hoai Thu; Tran Thi Thuy Huong; Dang Tran Trung

doi:10.15625/1859-3097/19/2/11087

Author affiliations

Authors

Trinh Hoai Thu Institute of Marine Geology and Geophysics, VAST, Vietnam
Tran Thi Thuy Huong Institute of Marine Geology and Geophysics, VAST, Vietnam
Dang Tran Trung Center for Water Resources Monitoring and Forecast, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/1859-3097/19/2/11087

Keywords:

Total dissolved solids (TDS), Electrical Conductivity (EC), Correlation regression equation, Upper-Middle Pleistocene aquifer (qp2-3), Lower Pleistocene aquifer (qp1).

Abstract

This article has established a set of empirical equations to describe the relationship between bulk resistivity and TDS of the Upper-Middle Pleistocene aquifer (qp_2-3) and Lower Pleistocene aquifer (qp₁) of the for field survey in 2017 in Ca Mau province. This article has determined the content of TDS based on EC (TDS_EC) and established correlation regression equation between TDS_LAB and TDS is based on the EC of the qp_2-3aquifer: Y = 0.549X – 0.081 with R² = 0.975 and Standard Error (SE) = 0.1591. The qp₁aquifer: Y = 0.4669X + 0.0483 with R² = 0.9869, Standard Error (SE) = 0.0949. Based on these regression correlation equations, we found a high correlation coefficient and small deviation between TDS_LAB and TDS_EC. Therefore, the determination of TDS content through the EC has reduced the cost of groundwater samples of the aquifers of laboratory analysis in Ca Mau province.

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References

Siosemarde, M., Kave, F., Pazira, E., Sedghi, H., and Ghaderi, S. J., 2010. Determine of constant coefficients to relate total dissolved solids to electrical conductivity. World Academy of Science, Engineering and Technology, 46, 258–260.

McCleskey, R. B., Nordstrom, D. K., and Ryan, J. N., 2012. Comparison of electrical conductivity calculation methods for natural waters. Limnology and Oceanography: Methods, 10(11), 952–967.

Anderko, A., and Lencka, M. M., 1997. Computation of electrical conductivity of multicomponent aqueous systems in wide concentration and temperature ranges. Industrial & Engineering Chemistry Research, 36(5), 1932–1943.

Day, B. A., and Nightingale, H. I., 1984. Relationships Between Ground‐Water Silica, Total Dissolved Solids, and Specific Electrical Conductivity. Groundwater, 22(1), 80–85. doi:10.1111/j.1745-6584.1984.tb01479.x.

Carlson, G., 2005. Total Dissolved Solids from Conductivity. Technical note 14, www. In–situ.com.

Thirumalini, S., and Joseph, K., 2009. Correlation between electrical conductivity and total dissolved solids in natural waters. Malaysian Journal of Science, 28(1), 55–61.

United States Geological Survey, 2016. Sources of Dissolved Solids in Brackish Groundwater.

Safe Drinking Water Foundation, 2016. TDS and pH.

Iyasele, J. U., and Idiata, D. J., 2015. Investigation of the relationship between electrical conductivity and total dissolved solids for mono-valent, di-valent and tri-valent metal compounds. Journal of Engineering Research and Reviews, 3(1), 40–48.

Nhu Trung, N., and Hoai Thu, T., 2013. Investigation of the saltwater intrusion in the coastal zone of Red River Delta. In Proceedings of the 11th SEGJ International Symposium, Yokohama, Japan, 18–21 November 2013 (pp. 244–247). Society of Exploration Geophysicists of Japan.

Trịnh Hoài Thu, Nguyễn Như Trung, Đỗ Văn Thăng, Vũ Văn Mạnh, Nguyễn Thu Hằng, 2016. Nghiên cứu hiện trạng phân bố tổng độ khoáng hóa tầng chứa nước Pleistocen khu vực ven biển tỉnh Nam Định. Tạp chí Khoa học và Công nghệ biển, 16(2), 151–157.

Al Dahaan, S., Al-Ansari, N., and Knutsson, S., 2016. Influence of groundwater hypothetical salts on electrical conductivity total dissolved solids. Engineering, 8(11), 823–830.

Tống Đức Liêm, 2004. Báo cáo đánh giá nguồn nước dưới đất vùng thị xã Cà Mau, Liên đoàn ĐCTV - ĐCCT miền Nam.

Nguyễn Ngọc Hoa, 1996. Báo cáo đặc điểm Địa chất - khoáng sản đô thị Cà Mau, Liên đoàn bản đồ Địa chất miền Nam.

Bộ Y tế, 2009. Quyết định số QCVN 01:2009/BYT về việc ban hành Tiêu chuẩn chất lượng nước ăn uống của Bộ Y tế.

Janardhana Raju, N., 2007. A season-wise estimation of total dissolved solids from electrical conductance and silica in ground waters of upper Gunjanaeru river basin, Kadapa district, Andhra Pradesh. Current Science, 92(3), 371–376.