A flame ionization detector at the outlet of the oxidizer ensures that it does not exceed emission levels. In addition, by using two flame ionization detectors, one on the inlet and one on the outlet, hydrocarbons can be measured and compared before and after processing, indicating efficiency.
Solvent recovery systems recover and re-use solvents from manufacturing processes. Solvent laden air from the processes is passed through an activated carbon bed. When the carbon bed is nearly saturated with solvent, a steam-down cycle occurs to condense out the solvent for re-use. The carbon is then regenerated for another collection phase. Two carbon beds are used so that one bed can process the solvent-laden air while the other one is regenerating.
We ought to make the moments notes
Of happy, glad Thanksgiving;
The hours and days a silent phrase
Of music we are living.
And so the theme should swell and grow
As weeks and months pass o’er us,
And rise sublime at this good time,
A grand Thanksgiving chorus.
~ Ella Wheeler Wilcox
For the past couple weeks we shined the spotlight on the Pollution Control Industry; we've looked at the three ways to reduce emissions (Oxidizers, Incineration & Solvent Recovery). This week let's discuss HOW, by looking at real life applications:
