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Development of a Mathematical Model for Assessment of Total Dissolved Salts

Baqer Abdul Hussein Ali


The main purpose of this research is deriving a new equation which can be used to find the total dissolved salts (TDS) in the soil. This equation enables us to find the total dissolved salts (TDS) by finding density of the saline solution resulting from dissolving the soil in distilled water. This equation shows very good results. So, in this research a new method was proposed to find the total dissolved salts (TDS) in the soil by applying this equation which was derived in this research without the need to use usual methods for finding total dissolved salts (TDS). In this study the proposed method uses the density difference between distilled water and saline solution taken from the soil dissolved in distilled water. This proposed method will make the test of total dissolved salts (TDS) in the soil more easily and quickly when applied. The proposed method is equal or excels in its accuracy on other testing methods, and has the advantage of being considerably faster if there were large numbers of samples to be tested.

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Winfield LE, Lee CR. Dredged Material Characterization Tests for Beneficial Use Suitability. DOER Technical Notes Collection (TN DOER-C2), U.S. Army Engineer Research and Development Center, Vicksburg, MS. 1999.

Al-Amoudi O, Abduljauwad S. Compressibility and Collapse Characteristics of Arid Saline Sabkha Soils. Eng Geol. 1995; 39(3–4): 185–202p.

Bilsel H. Hydraulic Properties of Soils Derived from Marine Sediments of Cyprus. J Arid Environ. 2004; 56(1): 27–41p.

Rongzhen D, Baoguo M, Xingyang H, et al. Sulfate Attack on Concrete in an In Land Salt Lake Environment. J China Univ Geosci. 2006; 17(4): 342–248p.

El-Swaify S. Soil and Water Salinity. From: Silva JA, Uchida R, editors. Plant Nutrient Management in Hawaii’s Soils, Approaches for Tropical and Subtropical Agriculture. College of Tropical Agriculture and Human Resources, University of Hawaii, Manoa. 2000.

Horneck DA, Ellsworth JW, Hopkins BG, et al. Managing Salt-affected Soils for Crop Production. Pacific Northwest Extension Publication, PNW 601-E, Oregon State University, University of Idaho, Washington State University. Nov 2007.

United States Salinity Laboratory Staff. Diagnosis and Improvement of Saline and Alkali Soils. USDA Agr. Handbook No. 60. Washington: US Govt. Printing Office; 1954; 160p.

Rhoades JD, Chanduvi F, Lesch SM. Soil Salinity Assessment. FAO Soils. 1999.

Weast RC, editor. Handbook of Chemistry and Physics. 55th Edn. Ohio, UA: Chemical Rubber Co., CRC Press; 1974.

Osama K, Al-Mufty Ahmed A, Rasheed A. Determination of Saline Soils Specific Gravity. Jordan J Civ Eng. 2008; 2(1).

Nuclear Size and Density., Physics, Georgia State University. Accessed on line Jun 26, 2009.

Richards LA. A Pressure-Membrane Extraction Apparatus for Soil Solution. Soil Sci. Soc. 1941; 51: 377–386p.

Adams F. Soil Solution. In: Carson EW, editor. The Plant Root and Its Environment. Univ. Charlottesville: Press of Virginia; 1974; 441–481p.

Gillman GP. A Centrifuge Method for Obtaining Soil Solution. Div. Rep. No. 16. CSIRO, Div. of Soils, Townsville, Queensland, Australia. 1976.

Elkhatib EA, Bennett OL, Baligar VC, et al. A Centrifuge Method for Obtaining Soil Solution using an Immiscible Liquid. Soil Sci. Soc. Am. J. 1986; 50: 297–299p.

Wolt J, Graveel JG. A Rapid Method for Obtaining Soil Solution Using Vacuum Displacement. Soil Sci. Soc. Am. J. 1986; 50: 602–605p.

Ross DS, Bartlett RJ. Effects of Extraction Methods and Sample Storage on Properties of Solutions Obtained from Forested Spodosols. J. Environ. Qual. 1990; 19: 108–113p.

Davies BE, Davies RI. A Simple Centrifugation Method for Obtaining Small Samples of Soil Solution. Nature. 1963; 198: 216–217p.

Kinniburgh DG, Miles DL. Extraction and Chemical Analysis of Interstitial Water from Soils and Rocks. Environ. Sci. Technol. 1983; 17: 362–368p.

Elkhatib EA, Hern JL, Staley TE. A Rapid Centrifugation Method for Obtaining Soil Solution. Soil Sci. Soc. Am. J. 1987; 51: 578–583p.

Reitemeier RF. Effect of Moisture Content on the Dissolved and Exchangeable Ions of Soils of Arid Regions. Soil Sci. 1946; 61: 195–214p.

Chapman HO, Kelley WP. The Determination of the Replaceable Bases and the Base-Exchange Capacity of Soils. Soil Sci. 1930; 30: 391–406p.

Kenneth LD. Effect of C02 on the Chemical Equilibrium of Soil Solution and Ground Water. Ph.D. Thesis, University of Arizona. 1967.

Anderson MS, Keyes Mary Get, Cromer George W. Soluble Material of Soils in Relation to their Classification and General Fertility. USDA Tech. Bull. 813. Washington: US Govt. Printing Office; 1942; 79p.

Gualbert. Density Dependent Groundwater Flow, Salt Water Intrusion and Heat Transport. Utrecht University, Interfaculty Centre of Hydrology Utrecht, Institute of Earth Sciences, Department of Geophysics. 2001.

Romanklw LA, Chou I-M. Densities of Aqueous NaCl, KCl, MgCl2, and CaCl2 Binary Solutions in the Concentration Range 0.5–6.1 m at 25, 30, 35, 40, and 45°C. J Chem Eng Data. 1983; 28: 300e–305p.

Akridge D. Methods for Calculating Brine Evaporation Rates during Salt Production. J Archaeol Sci. 2008; 35: 1453–1462p.

Bradshaw W. Effect of Composition on the Density of Multi-Component Molten Nitrate Salts. New Mexico 87185 and Livermore, California 94550: Sandia National Laboratories Albuquerque; 2009.

Wang L, Wang Q, Lu KQ. Density of Liquid GaSb Measured by an Improved Archimedean Method. J. Crystal Growth. 2006; 293: 14–17p.

Stuyfzand PJ. An Accurate Relatively Simple Calculation of the Saturation Index of Calcite for Fresh to Salt Water. J Hydrol. 1989; 105(1–2): 95–107p.

Kue-Young Kim, Chul-Min Chon, Ki-Hwa Park. A Simple Method for Locating the Fresh Water-Salt Water Interface Using Pressure Data. Ground Water. Nov–Dec 2007; 45(6): 723–728p.

Lambe TW. Soil Testing for Engineers. New York: John Wiley and Sons; 1951.

Earth Manual. Soluble Salts. 2nd Edn. Washington: 1974.



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