Modern Quarrying Q4 2020

Screening is one of the dry processes that can be used for fines separation.

environmental impact, he says, new and more efficient dry technology is gaining favour. “Hydrocyclones make extensive use of water, which is already a scarce natural resource in most areas of the world. Then there are challenges and costs associated

with the treatment of the contaminated water,” says Abelho. Wet processing, he says, is significantly more efficient in removing fines than screening. There are, however, improvements in fine screening, but there also are challenges associated

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QUARTER 4 - 2020 MODERN QUARRYING