Urea dissolved in aqueous solution is degraded to ammonia and CO₂ by the enzyme urease immobilized on surfaces of nonporous polymeric beads. Conversion rate is controlled by transfer of urea to the surface of the beads through liquid film, and the conversion takes place on the surfaces of the beads. The following parameters are given for the system. 11ec73a8_1d3b_05f4_b96d_152e5a16ecb7_SM1185_00 11ec73a8_1d3b_05f5_b96d_19772c9ecdcf_SM1185_00 support surface -s. 11ec73a8_1d3b_05f6_b96d_31a6ae706331_SM1185_00 = 1000 mg urea/l a. Determine the surface concentration of urea. b. Determine the rate of urea degradation under mass transfer controlled conditions.

Bioprocess Engineering 2nd Edition by Fikret Kargi,Michael Shuler

النسخة 2الرقم المعياري الدولي: 9780130819086

Bioprocess Engineering 2nd Edition by Fikret Kargi,Michael Shuler

النسخة 2الرقم المعياري الدولي: 9780130819086

تمرين 12

Urea dissolved in aqueous solution is degraded to ammonia and CO₂ by the enzyme urease
immobilized on surfaces of nonporous polymeric beads. Conversion rate is controlled by
transfer of urea to the surface of the beads through liquid film, and the conversion takes place
on the surfaces of the beads. The following parameters are given for the system.

support surface -s.

= 1000 mg urea/l
a. Determine the surface concentration of urea.
b. Determine the rate of urea degradation under mass transfer controlled conditions.

التوضيح

موثّق

a) Under the given conditions the surfac...