gold tailings recovery processs in pakistan

gold tailings recovery processs in pakistan

s core technology, called bioleaching, employs naturally occurring bacteriaharmless to both humans and the environmentto oxidize the sulphide materials left behind after years of mining. Ross Orr, president and CEO of BacTech Environmental, said it all started after he Googled quot;mine tailings and arsenic problems.quot; His search led him to the Snow Lake mine site, which was operated by the Nor Acme Mine for 10 years and went broke in 1959. Based on an independent NI 43 101 report, the stockpile is estimated to be about 300,000 tonnes, with an average grade of around 9.7 grams per tonne of gold. The stockpile is six metres to 10 metres high and encompasses an approximate area of 19,500 square metres.s already a concentrate,quot; said Orr. quot;This pile has sat there for over 50 years and there are not so much streams but water areas coming out of the mine site that are bringing out a lot of acidand with it, arsenic. This then goes into the Canada Creek and eventually ends up in Snow Lake, where the town gets its drinking water from.quot; Orr said with old projects like this, it falls into the hands of the government to clean it up, therefore costing the taxpayer. He said if a mining company disappears or goes bankrupt, someone has to step in. When Orr first went to speak with Minister of Mines Dave Chomiakwho had originally planned on just putting a cap on the tailingsChomiak asked Orr what BacTech39;s plan was going to cost him. Orr told him it would cost him nothing as long as BacTech could get the gold extracted from the tailings. quot;We call it the no taxpayer approach,quot; said Orr. quot;Why should the taxpayer pay for something that happened over 50 y...s prices, that equals about $130 million worth of gold. Production will see 11,000 ounces a year come out of the process, with BacTech receiving 95 per cent of the profit after the seven years is complete. quot;This will be the first commercial bioleach facility in North America built to remediate toxic mine tailings,quot; said Orr. quot;This is a major step forward for BacTech as we position ourselves as a leader in the field of tailings reclamation. It is a highly visible project whose success could lead to bioleaching playing a prominent role in future reclamations in North and South America.quot; For more information on BacTech and the Snow Lake project, or to see an informational video on the bioleaching process, visit BacTech39;s website.

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