PHOTO: STEPHEN JAQUIERYThe Bluff aluminium smelter has revealed it has another 75,000 tonnes of highly toxic hazardous waste stored in buildings at Tiwai Point - and does not have a solution what to do with it yet. They also show it was after storage pad cracked, causing "severe" pollution of groundwater with cyanide, that the company cottoned on. But it all comes from spent cell liner (SCL) waste. International industry guidelines say smelters should have long-term management plans for SCL waste that they disclose to the public. In the early 1990s, NZAS predicted it would generate 12,000-16,000 tonnes of SCL waste each year.

Source: Otago Daily Times March 07, 2021 18:56 UTC