The Boyne Island alumina smelter, owned by Rio Tinto is located in the Gladstone region. DEMEX was engaged by Boyne Smelters Limited as a principal contractor to undertake removal of hazardous Spent Cell Lining material from five 5,000m³ tanks and demolition of the tanks.
Demolition was conducted over two stages using a controlled collapse method. The tanks were pierced with a long extendable pick arm attachment to release the material, followed by mechanical dismantling of the tanks. Due to the age of the tanks and impact of the Spent Cell Lining material, the structural integrity of the tanks was compromised, however, all tanks were safely demolished without any environmental or safety incidents.
DEMEX received positive feedback from Rio Tinto for the efficient way in which the project was conducted and the team’s responsiveness which allowed the works to be conducted at the ideal time and ahead of schedule.
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