The Victorian EPA has granted EBAC permission to transfer Morwell Power Station asbestos to ENGIE’s landfill site.
Development of a mineral gel technology that will provide effective, low cost, rapid management of toxic red mud from alumina refineries has received a major financial boost.
Red mud is the waste product generated by the production of aluminum oxide, or alumina.
University of Queensland Sustainable Minerals Institute researcher Dr Tuan Nguyen has secured almost $500,000 to develop the gel technology that will transform the way refineries manage waste sustainably and economically.
Dr Nguyen said the gel had the potential to minimise pollution risks from red mud storage.
“New and cost-effective technologies are urgently required to assist the refinery industry to operate with much improved environmental outcomes,” he said.
“Safely storing and processing red mud is difficult, costly and time-consuming.
“But the gel chemically links mineral grains into stable and benign soil-like structures so it can sustain plant root systems, resulting in a successful rehabilitation outcome.
“This will help massively with seepage management and red mud rehabilitation.”
Dr Nguyen won a $180,000 Advance Queensland Industry Research Fellowship last week.
Rio Tinto and Queensland Alumina Limited have topped that up to almost $500,000, contributing cash and in-kind support.
“This funding is an outcome of strong collaboration between research and the environment teams of industry partners Rio Tinto and Queensland Alumina Limited, which produce $6 billion of alumina a year,” Dr Nguyen said.
“They accumulate millions of tons of red mud which is stored across 1500 hectares of dams in Central Queensland.”
Dr Nguyen recently joined the Sustainable Minerals Institute to work on research to develop cost-effective and sustainable technologies for rehabilitating red mud dams in Queensland and the Northern Territory.
Research group leader Associate Professor Longbin Huang said the technology was an important part of a new research theme of ecological engineering of mine wastes.
“Tuan’s appointment and the jump-start of this excellent funding opportunity are likely to lead to significant advancement of new technology to rehabilitate toxic red mud,” he said.
“This technology will help establish a red mud rehabilitation industry in Queensland, and make The University of Queensland the leading hub of red mud research and applications.”
Veolia Water Technologies has been selected to deliver a water treatment plant at the Talison Lithium Mine in WA.
The mine, located in Greenbushes, is the biggest hard rock lithium mine in the world. The Greenbushes Lithium Mine Water Treatment plant will be constructed utilising some of Veolia Water Technologies products.
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Veolia Water Technologies will provide a water treatment plant solution based on ACTIFLO clarification, CeraMem ultrafiltration, high recovery RO and two stage EVALED thermal evaporation. The plant is designed to treat a maximum feed flow of 150 metres cubed and hour to recover the most water as possible.
It aims to double the output from the Greenbushes Operations and satisfy environmental requirements to reduce lithium contained in onsite mine water before it is discharged into environment.
Veolia Water Technologies specialises in water and wastewater treatment solutions to the private and public sector and design, build, operate and maintain wastewater treatment facilities.
Lithium from the mine is used in batteries, busses and passenger vehicles, aerospace allows, wind turbines, glass and ceramics.
Preliminary activities have commenced, and the construction of the water treatment plan is expected to be completed and operational in 2019.
Veolia Australia and New Zealand has been chosen by Springvale Joint Venture and EnergyAustralia to deliver the new Springvale Mount Piper Power Station Water Treatment Plant (Springvale WTP).
Veolia will partner with Australian based Infrastructure Capital Group to fund the project, located in New South Wales’ Central West region.
The Mount Piper Power Station provides approximately 15 per cent of NSW’s power, and the Springvale WTP will be built under a build, own, operate and transfer contract.
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It has been commissioned by EnergyAustralia and the Springvale Joint Venture.
This facility will treat the mine water and deliver water to the power station for beneficial reuse. The project aims to enhance the quality of mine water discharged, ensure operational compliance in relation to water outflows and enable continued operations of both the mine and the power station.
The project requirements include:
● Transfer of water from the Springvale Mine to EnergyAustralia’s Mount Piper Power Station
● Treatment and reuse of the mine water, which is to be used as the industrial cooling water for the power station as well as ensuring excess water discharge complies with relevant environmental obligations
● Implementing a brine extraction and crystallisation process that can blend with the waste streams from the Mount Piper Power Station, ensuring both the mine and the power station remain in operations.
Following the construction, Veolia will then be responsible for the operations and ongoing maintenance of the pipeline and treatment facility, over a 15-year period.
“Veolia’s expertise in water treatment as well as our strong presence in mining and infrastructure has given both the Springvale Joint Venture and EnergyAustralia the confidence to award this 15-year water infrastructure contract to Veolia, which is so important to NSW’s power supply and provides an environmental outcome that will guarantee the mine’s future,” said Doug Dean, Managing Director of Veolia Australia and New Zealand.
“This contract confirms the added-value solutions and expertise that our group provides to its energy and mining clients, so that their processes can comply with industry and regulatory standards and can improve the efficiency of their operations.”
While preliminary site activities have already commenced, this contract now allows construction of the Springvale Water Treatment Plant to proceed immediately and will be completed by mid 2019.
The contract is projected to generate a number of jobs in the regional area and approximately 400 million AUD in revenue for Veolia over the coming 17 years.