Iluka is committed to the responsible management of waste products generated from its operational activities.
Sites develop and implement location-specific Waste Management Plans that address management of general waste, hazardous materials, sewage and hydrocarbons. Where possible, domestic wastes are separated on site and recycled. In ecologically sensitive areas, domestic waste is removed and transported to permitted landfill sites.
Process tailings are disposed of in mine voids in the same sequence as when materials were excavated. During mining, gravity separation is used to remove gangue minerals such as quartz, which are backfilled into the mine void or dedicated tailings storage facilities. Fine materials are dispersed in sand tails, buried in mine voids after drying out in temporary solar drying dams, or co-disposed with sand in tailings storage facilities. Saline oversized material is generally disposed in the mine void beneath the water table. Waste materials from mineral separation plants are, in most cases, returned to mine voids, and include gypsum, material from dust collection systems and residual fines removed from heavy mineral concentrate.
Iluka recycles waste material where possible. Oversized ore is often recycled for on-site road construction or other activities. In 2014 at Iluka’s Douglas rehabilitation site in the Murray Basin, idle poly pipe was reused in a sprinkler system for dust management. A recycling programme was also implemented in 2014 at the United States, Virginia operation, focussing on recycling cardboard, metal, aluminium and plastic. The company also recycled light bulbs and batteries in this operation, which further reduced hazardous waste streams.