Accession Number : ADA198522

Title :   Sodium Sulfide/Ferrous Sulfate Treatment of Hexavalent Chromium and Other Heavy Metals at Tinker AFB.

Descriptive Note : Final rept. 30 Sep 86-31 Dec 87,

Corporate Author : EG AND G IDAHO INC IDAHO FALLS

Personal Author(s) : Wikoff, P. M. ; Suciu, D. F. ; Pryfogle, P. A. ; Schutte, W. C. ; Carpenter, G. J.

Report Date : MAR 1988

Pagination or Media Count : 100

Abstract : The objective of this research was to validate the use of sodium sulfide and ferrous sulfate in reducing hexavalent chromium and removing heavy metals from electroplating, and industrial wastewaters. Jars tests, and dynamic tests, were conducted using distilled water, electroplating rinse waters, and industrial wastewaters from Tinker AFB Industrial Waste Treatment Plant. Optimum process parameters were evaluated as well as analysis of the effects of typical contaminants and complexing agents, along with the effects of the process on downstream treatment. The information obtained verified that the sulfide treatment process will meet discharge permit requirements while reducing chemical and disposal costs. The results were the basis for continuing to Phase II, Pilot-Scale Study On Actual Industrial Wastewaters. Keywords: Metals treatment, Chromium reduction, Sulfide treatment, Heavy metals removal, Ferrous sulfide, Industrial wastewater, Treatment, Sludge reduction, Electroplating. (jes)

Descriptors :   *WASTE TREATMENT, *WASTE WATER, *WASTES(INDUSTRIAL), CHEMICALS, CHROMIUM, COSTS, DISTILLED WATER, DYNAMIC TESTS, ELECTROPLATING, HEAVY METALS, INDUSTRIAL PLANTS, INDUSTRIES, IRON COMPOUNDS, METALS, OPTIMIZATION, PARAMETERS, SLUDGE, SODIUM, SULFIDES, WASTE DISPOSAL, WATER.

Subject Categories : Water Pollution and Control
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE