sorting plant
Facility that receives and sorts recyclable material and then delivers it to a recycling center.
nonreusable residue waste 
Waste that cannot be converted into useful matter for reintroduction into the production cycle.
burial 
Operation of compressing waste into layers 7 to 10 feet thick, and then covering them with at least 6 in of earth.
incineration 
Technique used to dispose of waste consisting of burning waste material until it is sterile; the gases released do not cause pollution.
paper/paperboard separation 
Paper and paperboard are usually separated by means of suction.
baling 
Paperboard and paper are compressed and wrapped separately before they are shipped to recycling plants.
recycling 
Process by which waste is converted into useful raw material and reintroduced into the production cycle.
optical sorting 
Pieces of glass are sorted by color (white, green or brown) using an optical detector.
compacting 
Operation of compressing metal waste to facilitate shipment to recycling plants.
magnetic separation 
It is used to separate ferrous and nonferrous metals (e.g., aluminum, copper, lead) from other waste materials.
separate collection 
Collection of waste material sorted beforehand according to type, carried out by those who generate it (households and industry).