In a waste treatment plant, hazardous chemicals are oxidized to less toxic chemicals by bubbling air...

 

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In a waste treatment plant, hazardous chemicals are oxidized to less toxic chemicals by bubbling air through the waste solution. This process known as aeration is governed by the COD (chemical oxygen demand). In a pilot unit, an air blower supplies 172 g mol of air/min to the aerator. The blower uses 1.2 kW. The inlet gas flow rate is 3.32 m3/min at a temperature of 307 K and pressure of P1. Determine the final temperature of the gas assuming the process is adiabatic, and that the blower is 100% efficient. (Delta H =988 J/gmol,Cp=(7/2)*R) In a waste treatment plant, hazardous chemicals are oxidized to less toxic chemicals by bubbling air through the waste solution. This process known as aeration is governed by the COD (chemical oxygen demand). In a pilot unit, an air blower supplies 172 g mol of air/min to the aerator. The blower uses 1.2 kW. The inlet gas flow rate is 3.32 m3/min at a temperature of 307 K and pressure of P1. Determine the final temperature of the gas assuming the process is adiabatic, and that the blower is 100% efficient. (Delta H =988 J/gmol,Cp=(7/2)*R)

Answer rating: 100% (QA)

Solution Steps 1 2 3 and 4 This is a steady state flow problem without reaction Th... View the full answer