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EIA recommendations essential for new mining projects

ENVIRONMENTAL PROTECTION Mining has a large environmental impact that affects not only the health and wellbeing of mining communities

ENVIRONMENTAL PROTECTION Mining has a large environmental impact that affects not only the health and wellbeing of mining communities

Photo by Bloomberg

22nd March 2019

By: Thabi Shomolekae

Creamer Media Senior Research Assistant and Reporter

     

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It is crucial for mining companies to consider the recommendations of all the environmental-impact assessments (EIAs) before the start of any new mining projects, says waste management solutions provider Interwaste business development and marketing director Kate Stubbs.

Her statement follows the news of the Brumadinho tailings dam disaster earlier this year, where more than 180 people were killed at mining major Vale’s Córrego do Feijão iron-ore mine in the state of Minas Gerais, in Brazil.

This happened less than a month before Minerals Council South Africa commemo- rated the twenty-fifth anniversary of the Merriespruit disaster, where a 2.5-m-high flood carrying 600 000 m3 of water poured out of the Merriespruit No 4 tailings dam in Virginia, in the Free State, killing 17 people on February 22, 1994.

Mining has a large environmental impact that affects not only the health and well- being of mining communities but also the long-term sustainability of natural resources. It is therefore important for mines to mitigate risks by conducting comprehensive EIAs and implementing sustainable solutions for the full life cycle of mines.

“It is also a good opportunity for mining companies to consider the environmental impact of the mine’s entire supply chain upfront to reduce waste production wherever possible,” says Stubbs.

Waste Management

Stubbs states that the global trends of zero waste to landfill and a circular economy are challenging the status quo of how South Africa undertakes environmental protection.

“These trends encourage a mindset of avoiding waste – looking at strategies to mini- mise, reduce, recycle and recover as first priority, and as a last option making provision for proper and safe disposal of waste.”

Consumer awareness on the way products are made, used and disposed of also adds impetus to these trends. “The impact of these trends and consumer pressure is that many leading companies have implemented zero waste to landfill or at least placed waste reduction strategies in place as part of its business goals,” she explains.

Mines also have an opportunity to extract value from waste or at least to reduce operating costs by managing waste more effectively.

Mine waste is still predominantly being landfilled at owned or third-party facilities. However, leading mines are shifting to zero waste to landfill strategies and have started to separate their waste streams, as well as find alternative uses for them through recycling, reuse or repurposing.

These sustainability strategies need to stay abreast of ongoing legislative changes regulating the generation and disposal of various waste streams, as well as new technologies providing alternative solutions for processing different waste streams, such as technologies focused on converting waste to product and waste to energy.

Meanwhile, acid mine drainage (AMD) is one of the negative impacts historical mining has had on the environment in Johannesburg, for instance, and strategies are being put in place to minimise the impact and reduce its occurrence. She explains that strategies such as the remediation, removal and repurposing of dormant mine dumps will curb further AMD.

Moreover, Stubbs believes that it is critical that any business must incorporate its environmental impact into its business processes. “From the sourcing of various raw materials and production to final consumption or route to markets, companies need to understand the generation of waste in each process to ensure long-term commercial and environmental viability of the business, she says.

Mining is a significant contributor to the economy from a financial and employment perspective and, therefore, mines will continue to play a critical role in the future and, by implementing long-term sustain- ability strategies, will contribute even more positively to the development of the country, Stubbs concludes.

Edited by Mia Breytenbach
Creamer Media Deputy Editor: Features

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