A professional who tends equipment that purifies glycerin by deionization process. Respnsibilities include:

• Starts pumps to force glycerin slurry through resin beds in series of purification tanks.
• Observes flowmeters and pressure gauges, and adjusts controls as necessary to meet process standards.
• Tests slurry for acidity periodically, using litmus paper.
• Draws samples of purified glycerin for laboratory analysis.
• Back-flushes tanks with acid solution to regenerate resin, as necessary.