dust emissions Archives - International Mining

Mineral Resources has commenced early works at its Onslow Iron project in the Pilbara region of Western Australia, a project that, according to Chris Ellison, will be “dust-free from pit-to-port”.

The early works at Onslow, formerly known as the Ashburton project, will support first ore on ship around December 2023, MinRes says.

Onslow Iron will unlock stranded deposits that would otherwise remain undeveloped in the West Pilbara region, using MinRes’ innovative and proprietary equipment designed to process and move bulk commodities at lower costs and with a reduced environmental footprint, the company said.

Following receipt of preliminary approvals, project preparations are on track and early construction activities including bulk earthworks have commenced at the Port of Ashburton, south of Onslow. At the nearby Truck Maintenance Facility, installation of the temporary construction village is underway, with first buildings to be installed from early September.

Mine development activities have also progressed at the Ken’s Bore Deposit, east of Onslow, with construction of the A320-capacity airport and the installation of two camps to support drilling and early construction works.

Recruitment for the construction phase of Onslow Iron is also well underway alongside a continued focus on community and stakeholder consultation.

In line with the project schedule, long-lead items have been ordered including the first transhippers, which will be used to load capesize vessels that will be anchored offshore from the Port of Ashburton. Each transhipper has a 20,000-t capacity, is fully enclosed to avoid dust pollution and has a significantly lower environmental footprint when compared with the major dredging activities that would be required to construct deepwater berths at the port, according to the company.

Onslow Iron will be one of the largest iron ore developments undertaken in Western Australia, delivering substantial benefits to the state including thousands of construction and operational jobs, billions of dollars of direct local investment through capital expenditure and billions of dollars of state and commonwealth royalties over the life of the project, it added.

Mineral Resources Managing Director, Chris Ellison, said: “Onslow Iron will be transformational, not just for MinRes but for the State of Western Australia. This project will be the cornerstone of our iron ore strategy to deliver low-cost, long-life operations with project economics that are compelling through commodity price cycles.

“We’re looking forward to delivering thousands of jobs for Western Australians and investing billions in the economy.

“Importantly, our innovations will drive lower emissions across the project. Onslow Iron has been designed with a low environmental footprint and will be dust-free from pit-to-port.

“We’re also setting a new FIFO standard with our industry first, resort-style accommodation to ensure the physical and mental safety of our people and to encourage more women, and couples, to live on site.

“It’s in our DNA to aim higher, push the boundaries and forge new paths, which is why Onslow Iron really represents a new paradigm for mining in Western Australia.”

On top of the dust-free innovation and FIFO aims, MinRes has mooted it will run autonomous road trains between the pit and the port at Onslow Iron.

Thiess, in partnership with its client Glencore, has come up with a proactive approach to environmental management to ensure dust, noise and blasting emission impacts are minimised on local communities at the Mt Owen coal mine in New South Wales, Australia.

Working together with Glencore, the team has developed a range of controls including leadership training and education sessions, noise and dust risk forecasting, targeted sound power testing of operating equipment and real-time monitoring technology.

Thiess Senior Environment Advisor, Linda Lunnon, said the real-time data enables the operational team to monitor dust and noise levels and respond swiftly to changing weather conditions.

“Paired with regular visual inspections, the technology provides further guidance throughout each shift, enabling our leaders to readily modify operations as needed,” she said. “The system also triggers SMS alerts to relevant personnel if dust or noise levels reach a defined threshold. This provides a prompt for operational staff to reassess controls and implement further actions if required.”

Lunnon said the forecasting systems also allow the Mt Owen team to plan for adverse weather conditions.

“Dust and noise are two of the highest environment risks for our projects in the Hunter Valley, and we are continually monitoring and refining controls that can assist in managing these risks,” she said.

Thiess’ environment team believes engaging its people is critical to effectively managing risks.

“We prioritise continued support and coaching of our people to ensure they understand the context and importance of our environmental controls and can get optimal value from the systems we’ve developed,” Lunnon said. “We educate them on the monitoring of data, trends and how they can apply their knowledge to minimise short-term and longer-term community impacts.”

Thiess Environment and Civil Manager, James Anderson, recognises his team’s ability to stay abreast of emerging environmental trends in industry and legislation to reduce risks and identify and action opportunities for our client.

“Our Mt Owen team works closely with our wider operations in the Hunter Valley to collaborate on solving problems and achieve tailored dust and noise management solutions,” Anderson said.

More broadly, the Mt Owen team works with Thiess’ wider operational and technical teams to design and deliver integrated solutions that optimise overall mining and rehabilitation efforts.

“Each project leverages our global insight to provide local value, with our head office team offering industry-leading environmental insights across each of our operating countries,” Anderson said. “Our proven experience managing the full suite of environmental services on mine sites ensures we continually deliver exceptional outcomes for our clients.”

Mineral Resources kicks off work at ‘dust free’ iron ore project in the Pilbara

Thiess cuts dust and noise emissions at Glencore’s Mt Owen coal mine