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Government welcomes Tiwai’s cleanup project

The government today welcomed confirmation of waste remediation measures from Rio Tinto, the owner of the Tiwai Smelter, including the removal of Southland’s aluminum dross to Tiwaisite and payment of its costs.

This includes spending $ 4 million on government, council, and landowner funding related to dross stored in Mataura’s old paper mill.

In a letter to Prime Minister Jacinda Ardern, Deputy Prime Minister Grant Robertson, Energy Minister Megan Woods, and Environment Minister David Parker, Rio Tinto’s Chief Executive Officer Jacob Stausholm said the company was the New Zealand Aluminum Smelter (NZAS). ) Will correct the environmental performance.

The business will include face-to-face discussions between Jacinda Ardern and Jacob Stausholm in Wellington in early May, as well as Gran Trobertson, Megan Woods, David Parker, Ivan Bella and NZAS, Chief Executive Officers of the Aluminum Group. Continuing from a previous meeting between Stew Hamilton’s General Managers.

“It took a long time to reach this point, but we welcome this commitment and the more reconciled and open stance that NZAS has taken in recent months,” said David Parker.

“We also welcome the approval of NZAS for its responsibility and how its environmental performance has disappointed the government and the Southland community.”

“We acknowledge and thank Ngai Tough that emphasized the importance of environmental remediation and continued to encourage cooperation with Rio Tinto Ngai tough. “

“We thank Mr. Stausholm for his efforts to rebuild the ongoing cooperative and positive partnership. The Southlanders as the smelter is expected to close by the end of 2024. It is important to take action after these efforts to have an impact on the local environment, “said Parker.

Media contacts: Vernon Small +64 21 849 517

Note to editors

The new business goes beyond removing dross to:

-Move Taha Ouvea from all other Invercargill locations as Tiwai’s space allows. Once the Mataura material has moved, we will begin transferring material from other buildings in Invercargill. The first 2000 tonnes are expected in the second half of 2021. Further relocation will take place once the material from Tiwai is processed.

-Funding the shortage of processing costs of Taha Ouvea. The current shortage of funds to be able to process the entire 23,000 tonnes of material is estimated at $ 2 million.

• Take full responsibility for Taha Ouvea, and in doing so promises the current funding of NZAS, the Ministry of the Environment, the Invercargill City Council, the Environmental Southland, the Gore District Council, and the building owners ($ 4 million). I will undertake it.

・ We provide a business to remove and process the dross of buried hyisoms on site. This dross was relocated from Bluff about 20 years ago and is liable for government liability.

• Work with Ngāi Tahu, MfE, Environment Southland, and government officials to identify other processing options for Ouvea and Spent Cathode Linings (SCL).

-By the fourth quarter of this year, we will introduce a new technology that can remove the cleaning shell of the reduction cell with water. This will significantly reduce the emission of cyanide into the coastal marine environment. NZAS emissions are already better than consent levels, and this change will result in very low emissions, certainly world class.

• Share soil contamination data with Ngāi Tahu, Environment Southland and MfE as part of the Q3 closure survey process.

They add the following to their previous efforts:

・ Move Mataura Ouvea to Tiwai Point. As of May 17, 3000 tons of material are stored in Mataura. Progress will continue over the next few weeks until about 1500 tonnes remain. Then wait for the remaining shipping containers (from China) to arrive in mid-June to complete the removal. The availability of shipping containers is very tight worldwide.

-Remove all SCLs from the Tiwai Peninsula upon closure.

· Share 20 years of groundwater monitoring results from SCL pads and landfills – and you’re done.

· Share on-site soil contamination sampling plans – and you’re done.

· Work with Environment Southland and Ngāi Tahu to develop additional sampling planning requirements and evaluate options for addressing sampling results.

· Work with Environment Southland staff to grant access to the site and work closely with Ngāi Tahu to ensure that the standards reflect the cultural importance of Tiwai Point.



Government welcomes Tiwai’s cleanup project

Source link Government welcomes Tiwai’s cleanup project

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