If the refuse after plastic recovery $($Stream $2)$ is completely dried and fed to the incinerator, how muchA total of $100kg$ wet refuse is collected and sent to a material recovery facility $($MRF$).$ The refuse mainly

contains food and plastic. The detail characteristics are shown in the following table:

Input

Output

The main purpose of the MRF is to recover the plastic $($Stream$1).$ Remaining refuse $($Stream $2)$ include $8$

$kg$ plastic and $72kg$ food.

thermal energy $($heat$)$ can be potentially produced? Assume the temperature in the incinerator is high

enough to burn all the organics.

If the refuse after plastic recovery $($Stream $2)$ is completely dried and fed to the incinerator, what is the

minimum volume of air $)$ required to be pumped into the incinerator? Assume that $21\%$ volume of air

is oxygen, and $1$ mole of oxygen is $22\mathrm{.}4L.$