The System, Lime, Nitric Acid and Water

Potential Use of Lime as Nitric Acid Source for Alternative Electrolyte Fuel-cell Method

The availability to pigs of nicotinic acid in tortilla baked from maize treated with lime-water.

Almost two decades ago Kodicek (194oa, b) observed that nicotinic acid in maize and other cereals is in a bound form that is rendered free only by hydrolysis with alkali ; he postulated that only a small fraction of the total amount of nicotinic acid in maize is ‘active’ and able to prevent or cure pellagra. Subsequent experiments on dogs with the black-tongue syndrome confirmed the hypothesis ...

Reuse of water treatment residuals from lime softening, Part I: Applications for the reuse of lime sludge from water softening

Lime sludge, an inert material mostly composed of calcium carbonate, is the result of softening hard water before distribution as drinking water. A large city such as Des Moines, Iowa, produces about 32 000 tons of lime sludge (dry-weight basis) annually. This is about half of the lime sludge produced in Iowa per year in eight different cities, and these cities currently have 371 800 tons (dry-...

Comparison of Sludge Characteristics between Lime and Limestone/lime Treatment of Acid Mine Drainage

The U.S. Geological Survey, in cooperation with the Colorado School of Mines and the U.S. Environmental Protection Agency, has demonstrated the application of pulsed limestone bed (PLB) treatment of acid mine drainage (AMD) at the Argo tunnel discharge near Idaho Springs, Colorado. Current technology for AMD treatment at the Argo facility is neutralization with lime. However, lime neutralizatio...

Phase Equilibria of the Ternary System Water + Phosphoric Acid + 1-Nonanol at Different Temperatures

The purpose of this reaserch is to measure the phase equilibrium data of the ternary system (water + phosphoric acid + 1-nonanol) at different temperatures. Experimental solubility curves and tie-line points for the system were obtained at T = 298.2, 308.2 and 318.2 K and ambient pressure. The binodal curve data were detected by the cloud point method. The mass fractions of each layer ...