Question: Sludge is wet solids taht result from the processing in sewage systems. The sludge has to be dried before it can be composed or otherwise

Sludge is wet solids taht result from the processing in sewage systems. The sludge has to be dried before it can be composed or otherwise handled. if a sludge containing 70% water and 30% solids is passed through a drier, and the resulting product contains 25% water, how much water is evaporated per ton of sludge to the drier?

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