QUESTION 1 An aqueous slurry of CaCO3 is to be filtered in a rotary drum filter with 25% submergence. The available pressure drop is 60kPa and the cycle time is 5 min. The slurry contains 230kg of solids per cubic meter of slurry. And density of solids is 2600kg/m3 . Calculate the filter area required to filter 30L slurry/minute. The filter cake contains 45% moisture on wet basis and the specific cake resistance is 1.23 x 1011 m/kg. The resistance of the filter medium maybe neglected. ??????? = 0.0012??/??

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