Penetrability and Hydraulic Conductivity of Dilute Sulfuric Acid Solutions in Selected Arizona Soils

• Main Authors: Miyamoto, S., Ryan, J., Bohn, H. L.
• Other Authors: Department of Soils, Water and Engineering, College of Agriculture, The University of Arizona, Tucson 85721
• Language: en_US
• Published: Arizona-Nevada Academy of Science 1973
• Subjects: Hydrology > Arizona.; Water resources development > Arizona.; Hydrology > Southwestern states.; Water resources development > Southwestern states.; Hydraulic conductivity; Penetration; Calcareous soils; Sodium; Sulfur; Sulfides; Acids; Acid mine water; Soils; Carbonates; Neutralization; Salts; Carbon dioxide; Arizona; Alkali soils; Sulfuric acid; Saturation point
• Online Access: http://hdl.handle.net/10150/300288

From the Proceedings of the 1973 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - May 4-5, 1973, Tucson, Arizona === Measurements of penetrability and hydraulic conductivity in calcareous soils treated with a dilute sulfuric acid solution showed a severe decrease in conductivity with increasing concentrations over 1000 ppm. A slight decrease in penetrability was observed. Carbon dioxide evolution appeared to be responsible for flow reduction and temporary cessation at 10,000 ppm and 20,000 ppm. In sodic soils penetrability and conductivity increased markedly with sulfuric acid concentrations between 1,000 and 10,000 ppm. For a neutral soil, penetrability decreased with increasing sulfuric acid concentrations, and the stable conductivity for 500 to 5,000 ppm was higher than for water alone. The findings suggest that disposal of sulfuric acid concentrations greater than 1,000 ppm will result in plugging by carbon dioxide. In sodic soils the possibility exists of using sulfuric acid solutions for reclaiming salt and sodium-affected soils.