Terrapure has been working with Vale since 2012 on a program to apply municipally treated biosolids to reclaim and vegetate the mining company’s Central Tailings area. This program was the first of kind in Ontario. Tailings are the ore waste rock generated from mining. For more than 100 years, Vale (formerly Inco) has been depositing tailings on the surface at its Copper Cliff impoundment site. Today, there are some 1,300 hectares of tailings – deemed inactive – that still needs reclamation work. While some spots had been successfully covered over the years, there remained large bare or sparsely vegetated patches that were susceptible to wind erosion. To keep the dust down, Vale used farm equipment to lay down hay, straw and chemical suppressant. But it was a costly solution because it had to be done constantly to maintain the cover READ HERE
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