Field and laboratory leaching studies of retorted Kentucky oil shales: report of progress of the Hope Creek field study. Progress report, April 1, 1983-October 1, 1984

摘要: This report summarizes the first year's progress of a field study on reclamation, geotechnical, engineering and elemental release or leaching characteristics retorted Kentucky oil shale related materials. The was derived from pilot plant test conducted by Dravo Engineers, Inc., in their circular traveling grate retort. mined Montgomery County, Kentucky, where research site is also located. Geochemical at centered around determination compaction spent raw crushing fines mixtures using mining equipment. Reclamation includes experiments to evaluate potential overburden materials serve as soil substitutes; use shales amendments; fertilizer requirements for spoil reclamation. To date, ten reclamation plots have been constructed. First year seeding failed due late planting early drought. Second activities included re-tilling re-planting plots. An excellent stand grass has developed purpose determine chemical composition waters which come contact with characteristicsmore » acid toxic release. Two large four-chambered concrete lysimeters were constructed fitted tubing collect leachate various points within lysimeters. filled configurations soils Collection samples began 1984 after saturated natural precipitation. Although it too an extensive evaluation, leachates are very acidic contain elevated trace element concentrations. 25 refs., 21 figs., 2 tabs.« less