A rotary drum filter with 30% submergence is used to filter concentrated aqueous slurry of calcium carbonate containing 15lb of solids per cubic foot of water. The pressure–drop is 2011Hg. If the filter cake contains 50% mixture (wet basis), calculate the filter area required to filter 10 gal/min of slurry. The filter cycle time is 5 min. The specific cake resistance depends on the pressure–drop as:$

• A. = ‚âà√≠¬¨¬± ‚àö√â‚Äö√Ѭ¢(‚âà√≠‚àö√Üp)^0.26, where ‚âà√≠¬¨¬± = 2.90‚Äö√†√∂‚àö‚â•10¹⁰
• B.
• C. ‚Äö√Ñ√∂‚àö¬¢‚àö√± 88 ft²