Process For Cleaning Dirty Post-Consumer Waste Glass

摘要

A method is provided to clean glass mixed with non-glass undifferentiated trash. In the method, the glass pieces are kept as large as possible to thereby minimize the amount of surface area that needs to be cleaned. The glass pieces are cleaned without washing the glass pieces with water or a surfactant during the cleaning process. The non-glass contaminants are liberated from the glass by drying and abrasion, and then removed from the glass by screening and density separation.

主权项

1. A method of processing dirty glass from a material recovery facility, comprising:
a) first screening to remove relatively large foreign materials from the glass; b) drying and polishing the glass; c) using a magnet to separate ferrous metals from the glass; d) second screening the glass into multiple particle size categories; e) in each of the multiple particle size categories, performing density separation to separate from the glass trash having a different density than the glass; f) pulverizing the glass; g) third screening to separate the pulverized glass from trash having a similar density to glass to result in clean glass.