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Non-Mineral Waste and Recyclable Material

Key to our materials stewardship programs is responsible waste and recyclable material management. The company is implementing procedures to review and approve off-site disposal and recycling facilities to ensure they meet high standards of regulatory compliance, financial strength and environmental management practices. In 2015, we generated approximately 296 thousand metric tons of non-mineral waste and recyclable material. In addition, we generated approximately 20 thousand cubic meters of used oil due to maintenance activities, of which 95 percent was recycled.  

Freeport-McMoRan is continuously evaluating opportunities to reduce the quantity and toxicity of waste generated at our facilities and to use the least toxic materials available for our processes. While we cannot eliminate all waste generated at our sites, we strive to reduce the quantity sent off-site for disposal, and look to increase the reuse and recycling of materials sent off-site. This includes the disposition of assets, such as obsolete equipment, obsolete inventory items, as well as off-spec chemicals and materials.

In 2015, TFM continued to operate a used oil processing plant that takes used oil, treats it to a high degree of purity, and then uses it as a fuel to dry its cobalt hydroxide product. This cleaned oil directly replaces diesel fuel that was previously used in the drying process.

2015 Waste and Recyclable Material Generated
in thousand metric tons
Disposal Methods
Non-Hazardous
Hazardous
Recycled
65
5
Landfill
69
98
Other Disposal
3
N/A
Stored On-site
30
-
Treated
N/A
26
Total Waste Generated
167
129
Waste classifications are based on national and regional regulations.

Management of Sludges and Residues We manage slags, sludges and residues in order to comply with applicable national, state and local laws, and permits. Slags, sludges and residues include smelter and furnace slags, electrowinning/electrorefining tankhouse sludges, lime scrubber sludges, air emission control residues and water treatment plant sludge. In 2015, we generated 274 thousand metric tons of slags, sludges and residues. When possible, these materials are recycled back into processes or are evaluated for other uses in accordance with applicable regulations.



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