1. Engineering
  2. Chemical Engineering
  3. 5 x 106 kgday of solid hazardous waste is incinerated...

Question: 5 x 106 kgday of solid hazardous waste is incinerated...

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5 x 106 kg/day of solid hazardous waste is incinerated in a rotary kiln. The waste has an ash (i.e., non-combustible portion) of 12% by mass. 40% of the ash falls out the discharge end of the kiln as bottom ash. The rest of the ash is carried out of the kiln with the hot gases as fly ash into an electrostatic precipitator (ESP). The ESP is 99.5% efficient in removing the ash. Draw a process flow schematic for this system, showing all appropriate control surfaces, and determine the mass emission rate of ash into the atmosphere.

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