Here are entered works on the processing of waste paper, cans, bottles, etc. Works on reclaiming and reusing equipment, parts, structures, etc. are entered under Salvage (Waste, etc.) --subdivision Recycling under individual chemicals and groups of chemicals and individual materials and types of materials, e.g. Copper--Recycling; Metals--Recycling
--subdivision Waste disposal under types of industries, industrial processes, facilities and institutions, e.g. Construction industry--Waste disposal; Metals--Finishing--Waste disposal; Universities and colleges--Waste disposal
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