Many years ago, I went to a plant manufacturing cooking oil. We were installing new fatty acid deodorizers. Damn, they needed them.
Pulp and paper plants are pretty nasty; and food processing plants with wet/rotting grains are vile. I used to get highly amused by auditors puking. Raw sewage generally smells better - lol.
Wow - very cool! The ability to composite all of these components to bring an image to fruition is amazing!