News tagged with treatment times

A sensor detects salt on the road to avoid excess

Engineers at Carlos III University in Madrid, Spain, have designed an optical sensor that detects how much salt is on road surfaces in real time. This avoids the need to spread the substance excessively, because although ...

dateJan 29, 2014 in Engineering
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Using wastewater as fertilizer

Sewage sludge, wastewater and liquid manure are valuable sources of fertilizer for food production. Fraunhofer researchers have now developed a chemical-free, eco-friendly process that enables the recovered salts to be converted ...

dateAug 03, 2012 in Engineering
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