Sludge Drying: Definition & Overview
Sludge cake is transported from the exit of the first-stage mechanical dewatering equipment and fed into the sludge dryer. The sludge dryer spreads the cake evenly on its drying surface to ensure effective drying. The sludge dryer uses either heat to evaporate water or electro-osmosis to dehydrate the sludge cake further to a drier, smaller cake.
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