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Problem 2 : ( 4 0 points ) Given ) Sorption by PAC ( powered activated carbon ) is often used to remove VOC (
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Given Sorption by PAC powered activated carbon is often used to remove VOC volatile organic carbon such as benzene from water. To characterize interphase mass transfer of benzene between water and PAC, laboratory experiment was conducted using completely mixed batch reactors. The specific surface area per mass of PAC is Exactly of PAC was added in water. Keeping CMBR sterile conditions, no decay of benzene occurred in water phase as well as PAC phase.
CMBR Completely Mixed Batch Reactor Experiment to Characterize Interphase Mass Transfer between PAC and Water
erphase concentration of benzene terphase volume
Assumption: no reaction in water phase
Solid phase sorbent: powdered activated carbon PAC
: the added mass of PAC
as: specific surface area per mass of PAC
Co: waterphase benzene concentration on the surface of PAC assuming
In the above CMBR condition, waterphase benzene concentrations were measured at different time points as seen in the following table.
Table CMBR Experiment Results
tableTime minBenzene concentration in Water Phase,
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