Alkalinity Of Drinking Water Alkalinity of water is the capacity of water to resist changes in pH that would make the water more acidic. In another word, alkalinity of water is a measure of the water's ability to neutralize acidity. In summary, alkalinity of water can be defined as the buffering capacity of a water body; a measure of the ability of the water body to neutralize acids and bases and thus maintain a fairly stable pH level" Alkalinity is basically dissolved minerals in the water that help neutralize the water, alkalinity is one of the characteristics display by water when bicarbonates, carbonates, and hydroxides are present in Water, these minerals have their sources from lime rocks as water percolates through rocks and soil. Alkalinity acts as a buffer if any changes are made to the water's pH value. The Alkalinity in the water will help keep the water's pH stabilized. Alkalinity is often related to hardness because the main source of alkalinity i...
Iron is one of the major secondary contaminant in both domestic and industrial water supply. Iron have caused water industries several billions of dollars . Iron is the second most abundant metal in the earth's crust behind Aluminum(8%), of which iron accounts for about 5%. Elemental iron is rarely found in nature, as the iron ions Fe2+ and Fe3+ readily combine with oxygen- and sulfur-containing compounds to form oxides, hydroxides, carbonates, and sulfides. As rain fall, rain water infiltrates the soil and underlying geologic formations and dissolves iron, causing it to seep into aquifers that serve as sources of groundwater for wells. In surface water, such as rivers and lakes, dissolved iron is hardly ever found, because it readily reacts with oxygen, forms insoluble compounds and sinks out into the bottom of the water body. Iron is seldom found at concentrations greater than 10 milligrams per liter (mg/L) or 10 parts per million. The iron that seep into the sources of g...