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Preliminary Separation of Metals and Nonmetals from Urban Refuse.

Authors
Dean-KC; Chindgren-CJ; Peterson-L
Source
NTIS: PB 201 900 :10 pages
Link
NIOSHTIC No.
10009817
Abstract
Horizontal and vertical air classification systems were treated individually and in simulated tandem for the recovery of ferrous and nonferrous metals, and of other noncombustible and combustible products from shredded urban refuse. The horizontal air system with a larger tonnage throughput was used to obtain preliminary separations, and a smaller capacity vertical system was used as a cleaning device. Air elutriation, magnetic separation, and screening of shredded minus 6-inch minicipal refuse recovered 92 percent of the metal in a relatively clean iron product contaminated only by adhering coatings or entrapped materials, recovered 97 percent of the combustibles in a 97-percent combustible product, and rejected 88 percent of the nonmetal noncombustibles. Cleaning of the preliminary combustible fraction produced a 98-percent paper product while rejecting other combustibles (plastics, rubber, textiles, etc.) into a 94-percent combustible product. Retreatment of the preliminary noncombustible fraction produced a relatively clean glass product.
Publication Date
19710101
Document Type
IH;
Fiscal Year
1971
NTIS Accession No.
PB-201900
NTIS Price
A02
Identifying No.
TPR 34
NIOSH Division
SLRC;
Source Name
NTIS: PB 201 900
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