Record Display for the EPA National Library Catalog

RECORD NUMBER: 71 OF 152

Main Title Evaluation of Efficiency and Economics of Three Nickel Removal Systems.
CORP Author Massachusetts Dept. of Environmental Management, Boston.;Environmental Protection Agency, Washington, DC.
Publisher 1995
Year Published 1995
Stock Number PB95-251534
Additional Subjects Nickel recovery ; Metal recovery ; Evaluation ; Efficiency ; Filters ; Capital costs ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB95-251534 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 6p
Abstract
This installation consists of a holding tank that feeds rinse tank effluent to a stacked membrane filter, the control system and the filter itself. The filter concentrates and removes metal salts, returning them directly to the plating tank, while effluent contaminated with a low concentration of nickel, brighteners and other plating chemicals goes to wastewater treatment. The second technology consists of an electrolytic recovery unit followed by a fluidized bed ion exchange unit. Nickel recovered by the two units is sent to a refiner for recovery. A third nickel management technology has been installed in a shop in North Carolina that is the largest manufacturer of nickel plated keys in the country. Again, work volume is similar to the preceeding shops. In this technology, a spray rinse over the plating bath followed by two still rinses that are returned to the plating bath create a closed loop nickel plating system. The water level and nickel concentration in the plating bath are maintained by an evaporator, while a carbon filter removes any contaminants.