Ion Elutriation of Silver and Free Cyanide from Wastewater [RI 9601]

Details

• Personal Author:
  Atkinson, Gary B. ; Nehl, Frederick H. ; Tom, D.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  "Ion elutriation was used to extract silver cyanide complexes and free cyanide from aqueous streams containing up to 10 ppm silver and 5 ppm free cyanide. Screening tests selected nine of 350 different surfactants for further, larger scale experiments. The screening procedure used 0.1 of each of the surfactants in 300 mL of synthetic wastewater. Air was sparged into the test cell at 50 cc/min. The most effective surfactants lowered the silver and free cyanide concentrations to less than 0.5 ppm in 1 h or less. These surfactants were quaternary amine salts with one long chain (C12-C18) organic group and three methyl groups." - NIOSHTIC-2
• Subjects:
  Cyanides Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  iv, 15 numbered pages
• NIOSHTIC Number:
  nn:10005620
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:97d1d86ca1000b46835608e15daafc3227b350cd319a61816f9b0a4e7d2c4238f762634c43094b1a1af13b30d2b6af2d18d471c536f159b073b468bd2fea7065
• Download URL:
  https://stacks.cdc.gov/view/cdc/10177/cdc_10177_DS1.pdf
• File Type:
  [PDF - 405.69 KB ]