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JOHANNESBURG (miningweekly.com) – Current mining industry players are faced with the challenge of who should be responsible for and deal with the subsequent financial impact of the legacy issue of acid mine drainage (AMD).
The mining industry has been a significant driver of the country’s economy, dating back many years; however, as many of the mining houses that pioneered the industry in South Africa have moved on to other areas, or have evolved into other companies or consortiums, the challenge of assigning responsibility for current issues is a real concern, says minerals industry consultancy Venmyn Deloitte environmental industry adviser Sarah Dyke.
As South Africa’s water systems are interconnected, AMD, if not treated, could potentially decrease the country’s water supply quality, which will impact on industries, such as agriculture and manufacturing, Deloitte strategy and innovation consultant Sabatha Mhlanga says.
Out of the 120 mining companies that once mined in the Witwatersrand, only six remain, and there are about 6 000 ownerless and abandoned mines, as well as about 270 tailings dams in the area containing six-billion tons of pyrite – a catalyst for AMD.