Propose and Evaluate Methods of Controlling Mercury Vapor Emissions in a Processing Mill Furnace Room

Details

• Personal Author:
  Bartlett PT ; Muldoon TL
• Description:
  The objective of this program was to develop cost-effective methods of controlling mercury vapor in a processing mill furnace room with particular emphasis on the McDermitt mercury mill in Nevada. Process, environmental, and operating data were collected at McDermitt and a preliminary evaluation of control systems was performed. Efforts were focused on the furnace, which is the primary mercury emission source, and furnace positive pressure or "blowback," which is the cause of the greatest furnace emissions. Cost-effective conceptual design alternatives were prepared that addressed the identified emissions problems, particularly furnace blowback. Two designs were selected and detailed design drawings and cost estimates were prepared. The first design agglomerates the filter cake upstream of a belt conveyor, which replaces the existing screw conveyor. The second design dries the filter cake to 5 percent moisture before conveyance on the belt conveyor. Both designs are expected to reduce mercury vapor concentrations by more than 500 ug/m3 in the furnace building and approximately 160 ug/m3 in the concentrator building during furnace operations. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Open File Report
• Document Type:
  Text
• Genre:
  Conference Publications ; Final Contract Report
• Place as Subject:
  Nevada ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PR
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-115
• NIOSHTIC Number:
  nn:10002760
• NTIS Accession Number:
  PB83-171751
• Citation:
  NTIS: PB/83-171751; :1-115
• Federal Fiscal Year:
  1982
• Performing Organization:
  Foster-Miller Assoc. Inc.
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB/83-171751
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:cedbe8bac40260cac8cc0339c69ded2f850a120eb944141bb9987bac8f74e62b901d30a3341e7d31db6178a591cf99b8febe077009775a10254945ba7444b77f
• Download URL:
  https://stacks.cdc.gov/view/cdc/235262/cdc_235262_DS1.pdf
• File Type:
  [PDF - 8.50 MB ]