Anglo American Plc (AAL) was the first company to transform the wastewater from its coal mines into something 80,000 people drink. Now they’re seen as a model.
Purifying contaminated waters from three sites in South Africa has proven so successful that Anglo’s plant in Witbank is doubling in size and being replicated elsewhere in the country by BHP Billiton Ltd. (BHP), the biggest mining company, and Glencore Xstrata Plc. (GLEN)
While the $130 million plant won’t upend the $600 billion world water industry, Anglo’s treatment center provides as much as 12 percent of the area’s municipal drinking supply and serves as a template for how the industry could treat waste in the future. It also shows how companies and municipalities are finding new ways to confront an increasingly water-stressed planet.
Water of a different sort — sewer water — is similarly about to be treated, purified and pumped back to residents in Wichita Falls, Texas, to augment shortages caused by growth and the area’s worst drought on record.
Mines often treat wastewater to some extent yet until the Emalahleni water-reclamation plant, 120 kilometers (75 miles) east of Johannesburg, none was of drinking quality.