Development and commercialization of the waste-plus-waste process for recovering metals from cyanide and other wastes.

Details

• Personal Author:
  Allan DR ; Cochran AA ; George, Lawrence C. ; Hjersted LN
• Description:
  The waste-plus-waste (wpw) process developed by the Bureau of Mines combines various acid and alkaline cyanide wastes under controlled conditions to neutralize the wastes and almost completely precipitate the metals and cyanides. The process was successfully used to treat some major types of electroplating and etching wastes, containing cd, cr, cu, ni, and zn, and to treat both concentrated and dilute wastes. The economics for treating concentrated wastes are especially attractive because of the low cost of mixing two wastes, the high value of the recovered metals, and the simplicity of the recovery procedures. Operating experience and a general cost comparison are presented. [Description provided by NIOSH]
• Subjects:
  Acids Cadmium Chromium Copper Cyanides Economics Electroplating Hazardous Substances Hazardous Waste Metals Mining Nickel Occupational Health Safety

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• Keywords:
  Mining; Waste treatment; Acids; Alkalines; Cyanides; Metals; Electroplating; Hazardous waste; Costs; Economics; Cadmium; Chromium; Copper; Nickel; Zinc
• Series:
  Mining Publications
• Document Type:
  Text
• Genre:
  Journal Article
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  RORC - Rolla Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  78-79
• Volume:
  73
• Issue:
  170
• NIOSHTIC Number:
  nn:10009663
• Citation:
  AIChE Symp Series Intermat Comp Shrinking Resources, 1977 Oct; 73(170):78-79
• CAS Registry Number:
  Cadmium (CAS RN 7440-43-9) ; Chromium (CAS RN 7440-47-3) ; Copper (CAS RN 7440-50-8) ; Nickel (CAS RN 7440-02-0) ; Zinc (CAS RN 7440-66-6)
• Federal Fiscal Year:
  1978
• Peer Reviewed:
  False
• Source Full Name:
  AIChE Symp. Series, Intermat. Comp. . . . Shrinking Resources, 10/77
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/240635/cdc_240635_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]