Question 1: Batch Adsorption for Phenol Solution. A wastewater solution having a volume of 2.5 m³ contains 0.25 kg phenol/m³ of solution. This solution is mixed thoroughly in a batch process with 3.0...

Extracted text: Question 1: Batch Adsorption for Phenol Solution. A wastewater solution having a volume of 2.5 m³ contains 0.25 kg phenol/m³ of solution. This solution is mixed thoroughly in a batch process with 3.0 kg of granular activated carbon until equilibrium is reached. Calculate the final equilibrium values and the percent phenol extracted. The equation for equilibrium is: q=0.199 c0.229 Question 2: Drying of Nitrogen and Scale-Up of Column. Using molecular sieves, water vapor was removed from nitrogen gas in a packed bed at 28.3°C. The column height was 0.268 m, with the bulk density of the solid bed being equal to 712.8 kg/m³. The initial water concentration in the solid was 0.01 kg water/kg solid and the mass velocity of the nitrogen gas was 4052 kg/m? - h. The initial water concentration in the gas was co=926 x 10-6 kg water/kg nitrogen. The breakthrough data are as follows: t (h) 9 9.2 9.6 10 10.4 c (kg H2O/kg N2 x 10°) <0.6 0.6="" 2.6="" 21="" 91="" 235="" t="" (h)="" 10.8="" 11.25="" 11.5="" 12.0="" 12.5="" 12.8="" c="" (kg="" h2o/kg="" n2="" x="" 10°)="" 418="" 630="" 717="" 855="" 906="" 926="" a="" value="" of="" c/co="0.02" is="" desired="" at="" the="" break="" point.="" do="" as="" follows:="" determine="" the="" break-point="" time,="" the="" fraction="" of="" total="" capacity="" used="" up="" to="" the="" break="" point,="" the="" length="" of="" the="" unused="" bed,="" and="" the="" saturation="" loading="" capacity="" of="" the="" solid.="" for="" a="" proposed="" column="" length="" ht="0.40" m,="" calculate="" the="" break-point="" time="" and="" fraction="" of="" total="" capacity="">