摘要: A field test was conducted on a uranium tailings pile (Federal American Partners Uranium Mill, Gas Hills, Wyoming) to evaluate the effectiveness of 15 chemical stabilizers for control of fugitive dust from uranium mill tailings. F... 展开 A field test was conducted on a uranium tailings pile (Federal American Partners Uranium Mill, Gas Hills, Wyoming) to evaluate the effectiveness of 15 chemical stabilizers for control of fugitive dust from uranium mill tailings. Fourteen of the stabilizers were applied with a field spray system, one was applied with a hydroseeder. After 1 year of monitoring, all of the stabilizers have degraded to some degree; but those applied at the manufacturers' recommended rate are still somewhat effective in reducing fugitive emissions. The following synthetic polymer emulsions appear to be the more effective stabilizers Wallpol 40-133 (Reicnold Chemicals), SP-400 (Johnson and March Corporation), and CPB-12 (Wen Don Corporation). Installed costs for the test plots ranged from $8400 to $11,300 per hectare, depending on the cost of the stabilizers. Large-scale stabilization costs of the test materials are expected to range from $680 to $3600/ha, based on FAP experience. Evaluation of the chemical stabilizers will continue for about one year. 收起