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Question 1: Batch Adsorption for Phenol Solution. A wastewater solution having a volume of 2.5 m contains 0.25 kg phenol/m 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 1: Batch Adsorption for Phenol Solution. A wastewater solution having a volume of 2.5 m contains 0.25 kg phenol/m 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

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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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 used.
Transcribed Image 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 used.
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