Theoretically, the anhydrous residues of the dissolved constituents in water. Actually, the term is defined by the method used in determination. In water and wastewater treatment the Standard Methods tests are used.
consist of minerals, organic matter, and nutrients that have dissolved in water. The major components of dissolved solids of natural waters include bicarbonate, calcium, sulfate, hydrogen, silica, chlorine, magnesium, sodium, potassium, nitrogen, and phosphorus in the form of phosphate. The major dissolved solids in the Arkansas River near Pueblo are calcium (cation) and sulfate and bicarbonate (anions). Minor constituents that are normally present in trace concentrations in streams include iron, copper, zinc, boron, manganese, and molybdenum.
Total Dissolved Solids measure chemicals such as calcium, magnesium, carbonates, bicarbonates, sodium and chlorides in water. These solids can give the water a salty taste. Maximum levels for pools is 2500 ppm for spas 1500 ppm over starting level.
also called TDS or Total Dissolved Solids – A measure of the total amount of dissolved matter in water. Examples are calcium, magnesium, carbonates, bicarbonates, sodium, chlorides and metals. High levels can cause corrosion, colored water or salty taste. Maximum level usually 2500 ppm for pools. Maximum level for spas, 1500 ppm over starting level.
The weight of matter in true solution in a stated volume of water. Includes both inorganic and organic matter and is usually determined by weighing the residue after evaporation of the water at 105 °F or 180 °C.
the total amount of dissolved material, organic and inorganic, contained in water or wastewater. Excessive dissolved solids make water unpalatable for drinking and unsuitable for industrial use. Measurements are expressed as ppm or mg/L.