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Paul O’Callaghan is CEO of Bluetech Research. The article is based on the report: Wastewater Treatment in Mining Metals.
Water access challenges and new mining discharge regulations are creating opportunities for the application of new water technologies. Yet the size and complexity of operations and cost of treating mining wastewater has slowed innovation. Which technologies/companies are emerging as successful?
As with many industrial sectors, the treatment of wastewater in mining applications is a secondary consideration tied to environmental policy and regulation, rather than a core operating practice.
As a result, many operators focus on well understood processes that require significant civil work, such as lime softening, tailings storage and chemical precipitation to be used as the primary system applied for heavy metals removal. However, in some instances novel and innovative technologies have been adopted with beneficial results.
There are several drivers leading to adoption of more advanced treatment technology, including: