Some copper and zinc smelters have been forced to cut their output because they have run out of space to store hazardous sulphuric acid in the face of poor demand for the by-product and more may have ...

Tourism promoters charge people $2 apiece to look at the most notoriously polluted mining site in Montana, an old copper pit filled with toxic water that will likely never be cleaned up. The Berkeley ...

If you read media coverage about copper-nickel mining, it’s likely you’ve seen references to one of its concerns: the potential for acid rock drainage. This is something the mining industry takes very ...

A solution with a pH value which is less than 7 is acidic. The acids which react with metals usually have quite a low pH, of either 3 or less. Some metals react with acids and when they do the ...

The electroreduction of carbon dioxide (CO2) into valuable chemicals and fuels typically operates under alkaline or neutral conditions, but the carbonation side reaction causes carbon loss. In ...

GameSpot may get a commission from retail offers. Metal Gear Acid was one of the more unique games to launch alongside the PSP earlier this year. Of course, the further adventures of Solid Snake are ...

The previous hydrometallurgical flowsheet that was included in the PEA (preliminary economic assessment [1]) was based on a more costly and complex gangue-leach – caustic-crack process. Upon joining ...

GameSpot may get a commission from retail offers. At its San Francisco-based press event today, Konami finally unveiled an English-translated version of Metal Gear Acid for the first time. The game ...