Sentence examples for tailings are from inspiring English sources

Chromium tailings are a waste product from the manufacturing of chromium salts and metallic chromium.

These tailings are not just a harmless inconvenience; they often contain poisonous heavy metals such as arsenic, cadmium and lead.

Conventional tailings are mixed with water and stored as a slurry, about 50 percent liquid, Ms. Arnold said.

Tailings are the mounds of crushed rock, mixed with trace amounts of chemicals, that remain after ore is processed.

The company says that it had the permits and that the tailings are nothing more than ground-up rock and sand.

Containing 1% to 2% of calcium chromate (a carcinogen) and 0.5% to 1% of water-soluble hexavalent chromium (a deadly poison), these tailings are toxic.

The tailings are covered with earth and there are fears that erosion will wash the material into the fertile Ferghana Valley.

Consider his recent description of the vast amounts of residual material that persist for decades: Mature fine tailings are the big problem for oil sands extraction.

And tailings are produced in large quantities: on average, 991 tonnes-worth for every 1,000 tonnes of ore that is mined.The most common way of disposing of mine waste is to dump it behind a dam.

To increase the recovery of copper and reduce losses, the tailings are frequently reground and passed through a second flotation, the concentrate from which is combined with the initial production.

Mine tailings are slurry wastes from ore processing.